Патент USA US2024006
код для вставкиDec. 10, 1935. H, L, KRUM ET AL 2,024,006 KEYBOARD PERFORATOR AND COUNTER Filed March 25, 1932 7 Sheets-Sheet 1 1 FIG. INVENTORS ALBZET h’. Elf/BEE BY HOW/4P0 L. [EU/V7 ' Jv’?, ATTORNEY / ~ Dec. v10, 1935. _ 2,024,006 H, L, KRUM ' 51- AL KEYBOARD 'PERFO'RATOR ‘AND COUNTER Filed March 25, 1932 . 7 sheets-sheet mum5% J.wm% “mmMP?. ATTORN EY 2 e. Dec. 10, 1935. H. L. KRUM ET AL. 2,024,006 K'EYBOARD PERFORATOR AND COUNTER Filed March 25, 1932 7 Sheets-Sheet 3 “’ III 11/11.} 110/, _ INVENTORS HOWARD L KEUM BY AZB?ET Ii PEKBEB 17% ATTORNEY ' /' Dec. 10, 1935. 2,024,006 H. L. KRUM ET AL KEYBOARD PERFORATOR'AND COUNTER Filed March 25', 1932 '/ Sheets-Sheet 4 "II/‘III "772 [3/ FIG. Haw/‘223025 me M BY ALBERT b? 25%52 12%? ATTORNEY D00, 00, 1935. 2,024,006 H. L. KRUM ET AL ' KEYBOARD PERFORATOR AND COUNTER 7 Sheets-Sheet 6 Filed March 25, 1932 206 0 ' 2/4 ' INVENTQRS M8527 hf 55/552 ATTORNEY H L K R u M ET {51L KEYBOARD PBRFORATOR AND COUNTER Filed March 25, 1932 7 Sheets?heet '7 INVENTORS BY mag/Q7 H Elf/55,8 2,024,006 Patented Dec. 10, 1935 UNITED STATES ‘PATIENT OFFlCE 2,034,008 raaroas'roa m ‘comps; Howard-L. Krum, Ke'nllworth, and mm a. assignors to Teletype Reiber, Chicago, Corporation, ‘Chicago, ill, a corporation of Delaware , ' ‘Application March ‘25,1932, sci-i=1 No, some, ' This invention .‘ relatesto '1 ‘type ‘ setting 2s Glalms. systems (01.‘ ray-11s) , ~ ofnew, fonts of‘ easy in the design either to ' supersede prior designs or to afford new designs, , and apparatus‘ therefor and more particularly to periorators and counters which may be, utilized istoassign eachcharacterto acertaindennite for agperiorated tape for the‘ auto group. For example, it has been found desir ‘ matic control of ~composing ‘machines of the ablev to divide the ‘widest characters into‘ eighteen llnecasting type. . '. I ' , ' '(18) units, and » to establish eleven de?nite groupings on the basis of the following unit sizes: art‘, composing‘ machines of the line casting type‘ 6, 7, 8, 9,10, 11, 12, 13, 14, 15, and 18. -_ In this are provided with matrices which consist‘ of small system 18 units are equivalent to the actor em brass units ‘carrying indented characters in their _ quad size of the font. ' The lower case "a” would, 10 . . Asia commonly known in'the typographical 10 ' edges and which are‘ ofdin'erent thicknesses due to the fact that the characters varyiinn width. for exampleLbe assigned to group 11 regardless of the font or style of type, signifying that -'a Thus, when these matrices are assembled into a ' lower case “a" is eleven units in width; a unit line of predetermined, definite length the num-' being not an actual dimension but merely a pro-. , - l5 ber'of- matrices necessary tocompletegthe-iine portion of the quad size in ~ ' varies with the particular matrices‘ used;' ‘the of'which itis apart. the particular font 1s.’ g _ length of the line, therefore, is'dependent, not - To accomplish the accm'ate counting or total uponthe number of characters inthe line, but i'zing of the matrices in'the composed line the rather upon the thicknesses, of the characters or apparatus according to the present invention is 20 matrices making up‘ theliine. Consequently, it adapted to count proportions, expressed in go is necessary duringv the preparation of a per .eighteenths of the set or quad size, and not forated tape representing lines of composed mat actual dimensions. ‘mus, the apparatus can be ter to totalize the various thicknesses of matrices ,usedforanysizeoitypeprovidedonly thatthe corresponding to the code perforations madein characters in the various fonts have the vsame ' 25 the tape, so that the operator will be apprised at - unit- grouping,‘ and an interchangeable space gs all times of the length of line remaining as each - band segment bechosen to suit the set size of _ _ key is operated and‘ can thus judge of the Justi?— ability of the line. ' ‘ » x ‘ the font of type. - 4 ‘ ' A primary object of the present invention is Besides the usual character matrices, compos the [provision of a keyboard perforator and ing machines .of the particular type to which the counter in which the counting operation is per- so present invention relates are also provided with formed with extreme accuracy, and which is expansible' space bands. or justifying “matrices ?exible to such a degree that it may be used for any font of type-regardless of size, with the which comprise ‘a portion analogous to and hav ing the contour of a character matrix and which _ characters arrangedin similar unit groups. Another object of the present invention is the 35 . 3515 positioned in’ the line of matrices usually be , . tween each series of character matrices compris ' so ‘provision of a ‘keyboard perforator and counter ‘ which-is simple in construction, reliable and em ing a word, and this portion has slidably articu lated thereto and depending therefrom a wedge ' .cient in operation 'at'all speeds. particularly at portion. By means of these wedge portions the ‘ high speeds, and inexpensive to manufacture. v Primarily, the present invention is a keyboard 40 justifying matrices are adjusted between certain ranges of thickness before the casting operation device intended to be employed-in the prepara is- performed. Under these circumstances a tion of perforated .; tapes, the perforations in counting device to indicate to the operator the which'represent lines. of composed matter; and totaliaed thickness of matrices in a line during also to take account ‘of the number of characters ' the process of composition, and the ‘number as well as the minimum, maximum and variable thickness of the justifying matrices in the line is highly desirable. _ - Heretofore, character widths in type faces in the various fut! of type employed in, line cast ing machines were designed with no attempt or matrices composed so that in a line of pne- so determined length the amount-or length of a line ‘ remaining to be filled or completed will always be ascertainable. The device is provided with a keyboard having its keys arranged similar to the familiar typewriter keyboard. Within the base 50 of the device are contained two selector mecha at grouping; that is, a letter, as:“a” would not be ' nisms, one of which controls a perforatorand of the same proportionate thickness in one font the other controls a counting function; the latter is the function‘ of totalizing the thicknesses of of type as in another font, and manifestly, group "" ing was not even intended. The present tend-._ the characters or matrices making up the line 55 o 2 8,034,006 and includes the feature of indicating to the op Fig. 21 is a rear perspective view of the indi erator the approach of said totalization to a pre determined length of line. Both selector mechanisms are operable by the cating mechanism. Fig. 22 is a front perspective view of the indi cating mechanism. I key levers to arrange in proper combinations a set of punch interference bars in the perforator and simultaneously to select one of a series of Fig. 23 is a sectional view taken on line 23-23 5 of Fig. 19. stop bars in the counting mechanism ,to control base I which is provided at its front with a key board of the usual form, and which is adapted to house the key levers and the selector mechanisms 10 operated thereby. Mounted on the base portion are the auxiliary devices, viz: the perforator, the counter, and the indicator, which are selectively ‘the movement of a unit wheel. A single operating The present apparatus. comprises essentially a 10 shaft is provided on which are mounted the unit wheel and other operating parts necessary to con trol the various functions of the device. Elec tromagnetically controlled means are provided to release the'various parts for operation and ‘controlled by the aforesaid selector mechanisms. is these electromagnetic means are controlled’ The motor for driving all of these auxiliary de- 15 through a common contact operable by each vices, except the perforator which is electrically one of the keys. ' operated, is also appropriately mounted on the ' An escapement means has also been provided base in position to effect the rotation of a single to control the movement of the unit wheel in operating shaft. All parts are thus suitably sup varying amounts to correspond to the thicknesses ' ported in such a manner to form a compact self- 20 of the characters composing the line. The in contained unit. . . dicating means comprises a sectoral or fan Having reference to Fig. l, the base I, as men shaped indicator, the indications on which are tioned, is provided at its front with a keyboard controlled by the unit wheel as well as by the comprising key levers 2 operated by keys 3. The space key, the cooperative eifect of which indi key levers 2 extend interiorly of the base I, and 23 cates to the operator the approach of the end of as illustrated in Fig. 2, are pivotally carried on the line. a common pivot rod 4 appropriately mounted A better understanding of the invention may be therein. A shift lever 6 and an unshift lever I had from the following description, taken with are not carried by the common .pivot rod 4, but ) so the accompanying drawings, wherein: are independently mounted in the base I on pivots 30 Fig. ,l is a perspective view of a keyboard per ‘I and 8, respectively. Each of the key levers 2 forator and counter according to. the invention. is provided with a return spring 0 for returning Fig. 2 is a perspective representation of the the associated lever to its normal position after key lever and selector mechanism arrangement. Fig. 3 is a longitudinal elevational view of the perforating selector bar unit. Fig. 4 is a longitudinal elevational view of the counter selectorbar unit. .Fig. 545 a diagrammatic sectional view show ing ‘the perforator and the transfer mechanism. Fig. 6 is-a perspective view of the positive con tact control. . . J Fig; 7 is a sectional view showing a modified form of stop bar arrangement. _ Fig; 8 is a longitudinal sectional view of the operating cam shaft. it has been operated. , __ Juxtapositioned to each of the key levers, ex- l6’ cept the function key levers including the shift and unshift key levers, is a code bar I2 slidably supported at its forward end on stud I3 integral with the key lever. The rear end of each code bar I2 is pivotally carried on a common pivot 40" rod I4 mounted in a rocker member II which is carried on a pivot shaft I8 suitably Journaled in the base I. _ ‘ . a To the rear end of key levers i and O are piv otally connected links I‘! and I8, respectively, 4a which in turn are. pivotally connected to brack - Fig. 9 is an elevational view showing the matrix ‘ ets I 9 and 2I affixed to the rear and front, respec . vthickness counting mechanism in the normal, tively, of rocker member II. Thus, member II _ unoperated position. is rendered rockable towards the front and rear Fig. 10 is‘ a longitudinal ‘sectional view ofv the alternatively by tlk levers 5 and 8, respectively. so unit rack stop. _ _ As member I5 is rocked, all of the code bars I24, 1 Fig. 11 is a cross sectional view taken on-line II-IIofFig. 9. I “Fig. 12 isa sectional view taken on line I2—I2 are shifted simultaneously, the purpose of which ' is to constitute a shift mechanism to effect a change in the operation of the counting mecha ' of \Fig._8 illustrating the escapement mechanism ‘ nism to correspond to upper or lower case charac- 55 ' adjacent thereto. . . _ ters, as will hereinafter appear. . . _ Fig. 13 is an elevational view of the tape back The forward portion of the bottom edge of spacing mechanism. Fig. 14 is a perspective view of the matrix thickness counting mechanism. Fig. .15 is an elevational view showing the _ counting mechanism inone of its operated posi . tions. - ' ‘ \ Fig. 16 is a schematic diagram of the electrical circuits for operating the device of the present invention. - \ Fig. 17 is a partial cross-sectional view of the device taken adjacent to the indicating mecha msm. 70 " Fig. 18 is a fragmental rear view of the iridi cator dial. _ V . 76 _ V . . Fig. .20 is a front elevational view of the indi cator dial. ' . tions which, as will be see , co-act with a series of selector bars arranged underneath the key 00 levers and disposed transversely thereof. These selector bars form a part of selector units 22 and 24. Selector unit 23 comprises a plurality of pairs of permutation bars 25 and 26, the ripper edges of which are provided with notches. Each pair 65 of permutation bars 25 and 26 rests upon a pair of rocker members 21 and 2|, Pig. 3, which are mounted upon common rods 2| and 32, respec tively. Each rocking member 21 and 28 has an ear extending forward to support a bar 25 and 70 another ear extending backward to support the companion bar 26. The rocking members 21 and Fig._19 is a fragmental front“ view of the indi cating mechanism. each of the code bars I2 is provided with projec 28 are pivotally conn ed at 33 and 3!, respec tively, to a horizon 1 bar .35 which is provided at its left hand end, Fig. 3, with an ear II adapted 18 ' ' 2,024=,006 to engage a notch in an associated lever 31. Per mutation bars 25 and 26 are adapted to be guided against lateral movement in suitable slots in end members 38 and 38 (Fig. 2). Levers 31 are piv ‘otally mounted on common pivot 4| (Figs.\2 and 5) carried in the base | and are adapted at their upper ends to engage notches in punch interfer forated' in accordance with the operation of the key lever 2. The previously depressed bars 25 will be returned to their upward position by the next key operated, provided the corresponding hole is not to be perforated, since the operated key lever 5 will engage the high part or‘ a bar 26. If the corresponding hole is to be perforated the bar 25 will remain in its downward position. . ‘ Selector unit 24 comprises a series of bars 43 - Simultaneously with the operation of a key each of which is carried by a pairof bell cranks lever 2 occurs the rotation of its associated code 10 44‘ and 45 (Figs. 2 and 4), which are pivotally bar |2 about the pivot rod M which is effected ence bars 42. I .10 carried on pivot “rods 46 and 41, respectively. is by means of the slot and pin connection I3 be Each member 44 and 45 is provided with an car tween bar l2 and key lever 2, as previously de 48 extending backward on which the bars 43 are scribed. This movement of code bar l2 brings carried. If desired bell cranks 44 and 45 may be ‘one of the projections or teeth 65, which is in 15 register with a corresponding selector bar 43, into positioned relative to bars 43 similarly to the po sitionment of members 21 and 28 relative to bars contact therewith to cause a selector bar to be de- . 25 and 26 in Fig. 3. The ends of the depending ‘pressed, thereby effecting the rotation of bell arms of each bell crank 44 and 45 are pivotally crank levers 44 and 45 in a counter-clockwise di rection (Fig. 4) to move bar 49 to the right, which 2;) beyond the left hand connection, and the end ofv movement is imparted to the associated Y-lever which is provided with an ear 5| adapted to ?t 52 to rotate it in a counterclockwise direction into a notch in an associated Y-shaped lever 52, against the action of its spring 66. connected to a horizontal bar 48 which extends a series of which is mounted on a common pivot As indicated in Fig. 5 arms 61 and 68 of each Y-lever 52 are. adapted to operatively engage with 2'; projections ‘II and ‘I2, respectively, of a transfer are maintained in spaced relation and are slid ably held in guide combs 53 mounted on the base . lever ‘I3 associated with each Y-lever .52. Each shaft 50 supported in the base I. The bars 43 of the selector unit 24 (Fig. 2). _. A description of the operation of the key lever and selector -mechanisms will now be given. Upon depression of a key 3 its key lever 2 will be caused to rotate about the pivot shaft 4 against the action of spring 8 and will engage the upper edges of permuted combinations of the permuta transfer lever ‘I3 is in vertical alignment with the Y-lever 52 below it and is pivotally mounted on a common pivot shaft ‘I4 carried by a transfer 30 bail ‘I5 pivotally mounted on shaft ‘I6. The trans~ fer bail ‘I5 is provided at one end with an up wardly directed arm "'II which cooperates with arm ‘I8 of armature lever ‘I8 which is pivoted at 82 to the transfer magnet frame 83. The move- 35-‘ ment of the armature lever ‘I9 is limited by a pin 84 which operates within a larger hole in the armature lever ‘I9. The transfer ball 15 normally tends to rotate in a clockwise direction by means tion bars 25 and 26, which will thereby be de pressed. It will be understood that for each key depressed a different combination of permutation bars will be operated. When a'permutation bar 25, for example, is depressed, its lower edge en gages with ears 54 of rocker members 21 and 28 vof a spring 85 attached to one end of the bail ‘I5, 40' causing the latter to rock on their pivots 3| and the other end of the spring being secured to a 32 producing at the same time an upward move ment of the other ears of the-rocker members and consequent upper movement of the compan ion permutation bar 26. This upward movement of ‘the bar 26 is permitted by reason of the fact ‘that the upper edge of the bar 26 is notched at points where the upper edge of bar 25 is not rod 86 mounted in the frame 83. This rotation of the transfer bail ‘I5 tends to impart through arm 11 movement in an opposite direction to armature lever ‘I8, thus holding lever ‘I8 against ‘'5 thestop pin 84- . > ‘ Each of the transfer levers ‘I3 is provided with a head 81 projecting into a slot of a stop bar 88 ' are guided to move vertically by the guide mem individual thereto, one such stop bar being pro vided for each of the transfer levers ‘I3. Stop bers 38 and 38, previously mentioned. bars 88 have a normal position, as indicated in ' notched and vice versa. _ The permutation bars v The permutation bars 25. which have been de pressed by the key lever 2 rock their associated rocker members 21 and 28 to swing in turn the Fig. 5, and are adapted to be slidably mounted upon rods 86 and 8|. In their operative posi tion the projections ‘II or ‘I2 of the transfer levers ' associated bar 35 to the right thereby rotating .13 are disposed directly above the arms 61 or 68, the associated levers 3‘I counterclockwise and respectively, of the Y-levers 52. Thus, when the transfer magnet 92 is energized, armature lever the interference bars 42 to the left, positioning the interference bars beneath punches 55, Fig. 5. An electromagnet 56 will then be'energized by establishing a circuit, as indicated in Fig. 16, from positive battery over wires 3|9 and 32l, through contact 322 (when closed), through winding of magnet 56, over wire 323, through contact "8, .thence to ground. Energization of magnet 56 ' rocks armature '51 clockwise, forcing the inter ference bars 42 upward against the punches 55 to perforate the tape 6|. Simultaneously with the perforating operation, pawl 58 will move up to engage the next tooth cit ratchet 53. When ' the magnet is deenergized spring 62 draws the pawl down,,rotating the ratchet 58 and feed roller 18 is attracted and through arm ‘I8 imparts coun terclockwise rotation to the transfer bail ‘I5. The transfer levers ‘I3 accordingly are brought into 60' engagement with the Y-levers 52. The projec tions ‘I2 of the transfer levers engage the arms 68 of the Y-levers and cause the transfer levers to rotate about their projections ‘I2 as a fulcrum in a counterclockwise direction. and cause the @5 stop bars 88 to be urged to the left. _ Now, when a Y-lever 52 has been selected and caused to rotate in a counterclockwise direction against the action of spring 66, the transfer maget 92 is caused to be energized simultaneous- 7'0 ly, thus imparting counterclockwise rotation to 63 (both of which are afllxed to the same‘s'haft the transfer bail ‘I5, as previously described. 64) one step in a well known manner, thus feed ‘ However, the arm 61 of the selected Y-lever will now engage projection ‘II of its associated trans _, ing the tape to position it for the next perforat fo ing operation. In this manner the tape is per. fer lever, 13 and the continued movement of the 755‘ ‘ 4 . - - 2,084,098 transfer bail ‘I0 will cause the transfer lever to 0 appear, the unit wheel 00 is .to rotate rotatein a clockwise direction about its proiec- ‘ ‘variablev amounts depending upon which one of tion ‘II as a fulcrum, causing itsassociatedstop bar 00 to be moved toward the right so that its right hand end will-be projected into the path of a unit wheel rack 00, (Fig. 9), the effect of which will hereinafter appear. The stop bars are adapt ed to be maintained in their right or left posi-' by individual detent springs 04 suitably carried ' ' will ,?t-in any portion of a .line varies with the thicknesses of the individual characters. The de- 1‘ vicefor counting or totalizing the thicknesses of the matrices composedin the line will now shaft IN is suitably journaled-in bearings I02‘ ‘ and I00 carried in brackets I00 and I05 mounted ' on the base portion I. There is loosely mounted member I00. Thus in the present embodiment the bracket I 00 is disposed between the unit wheel 25 90 and the sleeve member I00. Between the sleeve member I00 and bracket I05 and fixedly mount ed on the shaft "II is a flanged sleeve I01. - Sleeve member I00 is provided near its right end (as viewed in Fig. 8) with’ a ?ange I00 to' which are secured, by means of screws, a gear I09 and a disc III which are also carried on the > ' width ,‘ therefore, the number of characters which slidable‘relation therewith by guide member 01, more clearly indicatedin Fig. 11. Disposed above the unit rack 00, (Fig. 5) is a unit wheel 00 whichv is rotatably ?xed on an operating shaft IOI (Figs. 5 and 8). As-indicated in Fig; 8, the operating on shaft IOI‘adjacent to bracket I00 a sleeve .. I As already noted, the matrices utilized in line W casting machines are of different thicknesses since the characters corresponding thereto vary in ‘ The unit rack 90 is slidably mounted on- a unit rack slide 90 and adapted to be interlocked in . to which controls the operation of the indicator ' as will hereinafter appear. Matrix thickness counting mechanism tions by means of the pressure exerted upon them on the bar 05 of the frame 00. the stop bars 00 is operated. The shaft IOI ex-_ tends to'the right beyond the bracket I00 and ' carries at its right end a pinionv I02 aillxed there- ‘I bedescribed. Byreason of its relation to gear I00, the unit 'wheel 90 constantly-tends to'ro tate- However, its rotation is ‘controlled normal- 2° ly by a'pa‘wl’member 'I30-and unit rack 00, one or the other of said members being in engage ment with'the unit wheel during‘ the counting operation. ‘ t - - Brie?y, during the counting operation the pawl 2 I00 and rack 00 are operated so as to bring- rack 00 into engagement and pawl I00 out of engage ment with unit wheel 90 substantlallysimultanei ously (a slight'overlap being provided to prevent ‘ _ the escape‘ of the unit wheel), the effect being to '5“ the unitwheel 00 to carry the unit rack sleeve member I00. Member, I00 is also arranged permit 00 toward the right (as viewed in Fig. .14) until with a pair of diametrically disposed keyways it is-arrested by a selected one ofvstop bars 00, at extending from itsleft end approximately to the which’ time’ pawl, I00 is again brought into‘ en- ._ ?ange I00, which are adapted to receive corre; gagement rack 00 out of engagement with 3* sponding projections in a pair of disc members unit wheel and‘ 08 substantially simultaneously, thus I I2 and I I0 slidably mounted on said sleeve mem preventing further rotation of unit wheel 00 while ber, whereby the disc members ‘are rendered ro unit rack 90 returns to its original position. tatable therewith; _A‘member IIO provided with a . Having reference to Figs. 9, 14 and 15 it will be . 40 two integral portions; namely, cam I I0 and stop. that the rotation or escapement of unit 4° disc III, isinterposed between the disc members; noted. wheel 00 is controlled by' the aforementioned unit III and I I0. The functions of the cam member rack 00 and the pawl member I00. As previously II 0 and stop disc I I6 will hereinafter appear. B6!- , described the unit rack-00 is slidably carried‘ on tween member Ill and each of the‘ adjacent disc the unit rack slide‘?lwhich is pivotally can-led ' members II2‘and. H0 is disposed a‘disc of fric , on bracket I00‘inte'gral-with the base I. The 45 tion material I20. That part of the sleeve mem unit rack is providedwith a pair of lugs I00 and ber I00 adjacent to disc I I2 is threaded ‘toreceive " I00. The right hand lug I30, as viewed in Fig. ' -anutII1 and locknut IIO. adjacentto disc I,“ is . 14, cooperates with the stop bars 00 while the > a helical spring N0, the compression of. which is lug I00 'coacts with a spring actuated adjustable by means of a collar I22 screwed to left hand lever I01 plvotally mounted at I00 to a 50 sleeve I00. 1With this arrangement it is seen that ' return bracket I09. The tension of a spring I02 which the member I I0 is adjustably carried and friction actuates the return lever I01 is adjustable by ally connected to sleeve I0 . - ' ' means of a screw I00 mounted in bracket I00. , _ The flange of the sleeve I 01 forms a part of a Pawl member I00 is pivotally mounted at I00 friction clutch composed of a drive disc I20, discs ‘on ‘the bracket I04 and tends to rotate in a coun- ,55 of friction material I20,"and disc I20. Pressure terclockwise direction 'due to the action of a , is imparted to this friction clutch by means of a ‘spring I 00, one end of which is secured to the up-v helical spring I20, whichis adjustable by means ' per extremity of the pawl member I00, and the ‘ of a nut I2‘I carried onv the sleeve‘I0‘I. A drive 60 connection is provided between the gear I00 and ‘other end being attached to a spring clip I“. Pawl member In, which is provided with a °° the clutch Just described by means of-the inter ‘toothed portion‘ I 00, thus is held in engagement engagement ‘of the lug I20 integral with ‘disc. I II with the teeth on the unit wheel 90 bymeans of with a correspondingnotch in the I20 spring I“. An adjustable stop I" however is Continuous rotation is imparted to the‘ gear provided whereby the degree of engagement _b_eI00 by means of a motor through-.a'pinion I20,‘ tween the toothed portion I40 and the unit wheel a and similar rotation is thereby imparted to the maybe controlled; that is, it is desirable to pre sleeve member I00 and drive discl20. The mem vent the teeth in the pawl member I00 from hot ber “0, however, is held from rotation by means toming when they engage with the teeth in the of an escapement pawl IOI' shown in-Fig. 12. j unit wheel 00 to preclude damage thereto from To Sleeve member I01 and shaft, IOI which‘ con stantly tend to rotate ‘are restrained; therefrom by the. cooperation of-the‘escapement means wedging. . _ - Depending from the pawl member I 00 is a por tion I00 whichis provided with a laterally dis- ' which is associated with the unit wheel". When Y posed end I50v (Figs. 9 and 15) adapted to coop the escapement means, which comprises rack 00 76 and pawl I00 (Fig. 9) is operated, as will presently erate with the extremity of the unit rack slide as. ' The pawl member In is also arranged‘with ‘II . an ‘arm I59 to the outer end of which is piv 5 with the unit wheel 98. The unit rack- 53 is otaily connected one end of link I52, the other end thereupon placed under the in?uence of the of which is plvotally connected to the end of lever spring actuated return lever I31 and is carried I53 which in turn is pivoted at I55 to the slide toward the left thereby to its stop I55. v".li'lie stop .member 95. The opposite end of lever I53 is I55 is adapted to be cushioned by a compression . I55 as indicated in Figs. 9, 10, 14 and 15. vpivotally connected to arm I55 of operating spring The cushioning means is more clearly shown lever I55 which is supported pivotally at I51 to the bracket I05. Operating lever I55 is also‘pro ' in Fig. 10 wherein it is seen that the stop I55-is provided with a cylindrical stem' portion‘ I51 vided with two arms I55 and I59. At the ex tremity of arm I53 is carried a follower roller threaded at its extremity and which is adapted 10, of extend slide 95.through Mounted and on beyond the stem’ a vertical I51 between lug I53 ‘ I5I which 'co-acts with the cam II5. A follower to roller I52 is also carried at the extremity of arm I55 of ‘the operating lever I55 and is adapted to the lug I58 and the stop I55 is'a sleeve member cooperate with a pair of cam portions I53 and I59, and encircling‘said sleeve member is the I55 diametrically opposed to each other and which are secured to the face of the cam II5, 7 Cam II5 is provided with two similar cam sur faces since two complete operations are per formed during one complete revolution of the .cam; that is, for‘ one complete operation the shaft and cam are permitted to rotate one helical compression spring I55. Thus it is seen'15_, that any pressure exerted against the stop‘ I55 ' ‘ in an axial direction will be resisted by the com pression spring I55. The motion of sleeve mem ber I69, and hence stop I55, is adjustably con— Y trolled by a nut and locknut mounted on stem 20" ' portion I51. ' A limiting means I" is provided for the unit rack slide 95, whereby the upward movement of operation of the apparatus. ' Upon the initiation of the rotation of cam II5 the slide is restricted to the extent, of preventing the teeth in the unit rack 93 from bottoming in 25, . the follower roller I5I is acted upon by the pe ‘ riphery of the cam II5 so as to impart clockwise limiting the teethmeans of theI51unit andwheel. III willThe become utility apparent of the " rotation 'to the operating lever I55. Arm I55 when it is understood that the operation of the of the operating lever I55 thus is raised and in. so doing lever I53 is caused to rotate about mechanism is very rapid and the movements of the individual parts are very sudden and eonse- g0. its pivotal connection with link I52 thus elevat quently there is a possibility that the‘teeth in the " ‘ half revolution, thus enhancing the speed of ' ing the pivot I55 between the lever I53 and the . unit rack slide 95. Slide 95 thus is elevated so as unit rack and pawl member might wedge into to bring the unit rack 93 into engagement with the unit wheel 55. The continued rotation of the operating lever I55 in a clockwise direction causes ' the lever, I53 to, rotate about its pivot I55,as a fulcrum in‘which event the link I52 is‘given a downward movement which in turn imparts clockwise rotation to the pawl member I33 about its pivot I35 against the action of spring I55. The lateral portion I50 of the pawl member I33 is-now disposed beneath the end of the unit rack slide 55 as indicated in Fig. 15, to insure, the'teeth in the unit wheel, the smallness or'iin'e ness of the teeth in these various members being necessary counting by its limiting operation. due action to the Furthermore,'the on precision unit rack required slide stop 95inplays 'I'II the an important part in the operation of the unit rack 93 by eliminating the friction of the unit rack 93 on the slide 95 which would otherwise be 40' present if rack 93 were permitted to be pressed ' into engagement with unit wheel 98, and which ' . would render the mechanism either sluggish or during the ensuing operation of the'escapement even inoperable if the pressure were too great. ' . 7 means, the engagement of pawl I33 with unit‘ wheel 95 prior to the disengagement of rack 93 rack 93 and the sharp impact of its lug I35 ' “ to. preclude the undue escapement or movement of unit wheel 95 which would otherwise be liable to occur.. In effect, the portion I50 performs the function of a safety device. ' . Elbe/unit wheel, which constantly tends to rotate by virtue of being ?xed to shaft IOI,' is thus released for rotation and the unit rack being free to move is carried toward the right until l_ the lug I35 is intercepted by one of the stop bars Likewise, due to the rapid movement of the 45 ' - against a selected stop bar 55, a cushioning means is provided which is housed in the member III. The primary function of this cushioning means is to prevent the rebound of the rack 93 when it 50 ‘strikes against the stop members 03, the shock ' being absorbed by a helical compression spring 200 carried on a plunger I50, having an enlarged end I“ anda threaded end carrying a. nut and locknut, the spring 200 being compressed be- 55, 55. At this point the cam portion I53 acts upon tween the end I 5| and the wall of the housing - ' the follower roller I52 so as to suddenly reverse the direction of rotation of the operating lever I55. .The unit rack slidev 95 cannot at this time ,_ be lowered because of the engagement of its for HI, and the movement of the plunger "I!' being constrained by the nut thereon. The stop-bar support. I5I is guided by screws I50 engaging slotted holes therein and is thus adapted to- co-_ co‘ ward extremity with the lateral portion I50 of the operate with the cushioning means. The use of -' " pawl member I33. Therefore, lever I53 is caused vbility of deforming, or even vshearing oil,v the ends to rotate in a counterclockwise direction about the pivot I55 thus causing the link I52 to be‘ elevated which in turn permits pawl member I35 to rotate in a counterclockwise direction, due to the action of its spring I55, into engage ment with the unit wheel 95, simultaneously causing the withdrawal of lateral portion I50 70; from engagement with slide 95. The continued rotation. of the operating lever the cushioning means also precludes the possi of the stop bars 55. _, _ I Escapement I mechanism ‘ ' ‘ _ I To enhance the speed of operation of the ap paratus herein described an escapement mecha nism has been provided whereby the amount of rotation of the operating cam I I5 to effect a com- 7o, plete operation is limited to 180° or one-half revo- " lutlon; thus, as previously alluded to,‘ the cam II5 is provided with twosimilar cam surfaces. _ the lever I53 to rotate about its pivotal connec p The rotation of the shaft IOI is controlledby tion to link I5 in a counterclockwise direction‘ t rack 93 from engagement . the electromagnetically operated escapement ' to withdraw the 'I55 in-a counterclockwise direction now causes 5.5. ‘(a 6 2,024,006 means shown in Figs. 1 and 12. As will be re membered the member III is provided with an ' ' reference to Fig. 6 a lever I83 associated with a selector bar I80 is shown mounted on the pivot integral cam portion IIS and an integral stop ' shaft 4|. The‘ lower extremity of this lever is disc H6. The stop disc H6 is provided on its pivotally articulated to a horizontal bar I84 periphery with two diametrically .opposed teeth -. similar to bars 35 shown in connection with levers 5 since two complete operations are performed for 31 in Fig. 3. The upper extremity of lever I83 is each complete revolution of the member Ill. provided with a lateral portion I85 and an angu As indicated in Fig. 12 there is associated with lar portion I86. A contact screw I81 is adjust the stop disc'lli an escapement member I3I ably carried on the angular portion I88 to co-act with the spring contact I18 suitably carried on 10' which is pivotally secured to the bracket I12 mounted on the base portion I. The stop dis'c the frame 83. Lever I83 normally tends to rotate normally tends to rotate in a counterclockwise in a clockwise direction as viewed in Fig. 6 under direction as viewed in Fig. 12 and the escapement the action of spring I88 and is held thereby member I3I is normally held in engagement with against a stop I90 mounted on the selector bar 15' the lower tooth I 13 of the stop disc by the action frame; thus, contact I18 is normally open. A of spring I10, one end of which is secured to the latch member I89 is provided to cooperate with escapement member I3I and the other end being the lateral portion I85 of the lever I83. This attached to the extension I15 of the bracket I12. latch member is rotatably carried on the stud . Integral with the escapement member I3I is I 9I and tends to rotate in a clockwise direction an armature portion I16, associated with which is due to the action'of a spring I92. Latch member 2b; the electromagnet I11 also suitably mounted on I89 is also provided with a vertical arm to which the bracket I12. When magnet I11 is energized, is pivotally articulated one end of link I 83, the armature I16 is attracted thereto, causing the other end of which is pivotally connected to the escapement member I3I ‘to rotate slightly in a arm‘ 18 of the armature lever 19. counterclockwise direction to effect the disen-’ Whenever a key lever is depressed the lever 25‘: gagement of the lower arm" of the escapement I83 is caused to rotate in a counterclockwise di member from the tooth I13 of the stop disc II6 rection against the action of spring I88 to ef - whereupon the stop disc and cam I I5 is permitted fect the closing of contact I18. Lever I33 is to rotate as indicated by the arrow until tooth maintained in its counterclockwise position and I13 is intercepted by the upper arm of‘ the escape contact I18 is held closed by means of the en- 3b.: ment member. When magnet I11 is deenergized, gagement of latch I89 with lateral portion I35.= the escapement ~member returns again to its The reason for this detention is to insure the clockwise position under the action of spring I10 to release the upper arm from the tooth I13 and ' to introduce the lower arm into the path of the companion tooth I10 on the disc member. The energization of the perforating magnet 08, the transfer magnet 92, and the escapement magnet I12 in case the key lever should be released too 33': quickly. It is obvious, therefore, that the dura tion of energization of these magnets is independ ent of the operation of the key lever. When the electromagnet I 11 is caused to be energized by the closing of a contact I18 (Fig. 16) controlled by each one of the key levers 2. transfer magnet is energized, however, the con Thus, the initiation of the rotation of member sequent attraction of armature lever 18 will cause (0 I II is controlled by each one of the keys, and the amount of rotation of the member (namely, one half revolution for each operation) is controlled the link I93 to be actuated toward the left as ‘o’ viewed in Fig. 6, which movement will be im parted to the latch member I89 rotating it in a by the escapement mechanism just described. counterclockwise direction to e?ect the release However, a means is provided to interrupt the ' of the latch-arm thereof from the lateral por- 45,. circuit for the escapement magnet I11 during cer tion I85, thus releasing lever I83 which will there tain operations-for example, functions, which in upon be urged to its normal clockwise position the present application pertain to those opera by the spring I88. tions other than counting-in which event the . 4 I - counting operation is not required. The key Indicating mechanism levers that control the functions operate an addi tional pair of selector bars I19 (Fig. 2) which A novel indicator has been provided which in-' dicates the relation between the totalized thick nesses of the matrices in a line and the aggregate control the horizontal bar I8I. The right end of 60 bar Ill is laterally disposed to cooperate with a ' amount of expansion provided by the spacebands. . normally closed contact I82 appropriately mount», This indicator does not totalize or sum up the 55' ed in the base. 80, when‘a function key is de actual dimensions of the matrices but rather it pressed the contact I18 (which is invariably counts proportions, and thus a single dial can be operated) is closed, but the contact I02 is opened usedfor any size of type provided the characters substantially simultaneously or slightly previ have the same unit groupings, as will be present-' ous, so that the escapement mechanism is ren ~ “1y explained. ' dered inoperative, while the remaining operations The indicating mechanism is illustrated in Figs. controlled by the operated function key proceed ‘ 1'1 to 23. In Fig. 17 the pinion I32 hereinbefore _ uninterruptedly. Positive contact control ‘ To insure the energization of the various oper ating magnets notwithstanding the speed of oper ation of the keys by the operatona positive latch , control has been provided for the main operating 70 contact, which latch is adapted to be automati-' , alluded to is shown in mesh with gear 2“ which ' is provided with a hub 202. The rotation of pin ion I32 is variably controlled by the counting 05> mechanism and the rotation thereof in varying amounts is transmitted through gear "I to an index hand or pointer 203. The gear 2" is rotat ably mounted on a stud shaft 204 fixedly mounted on a bracket 205. Stud shaft 200 carries axially m‘v cally released only upon the complete or effective therethrough a rod 206, the left extremity of energization of the magnets. which (as viewed in Fig. 17) is provided with an ' ' 00> Each one of the key levers controls a single integral ?ange 201, and the opposite end is pro— selector bar I80 (Fig. 2) which is invariably oper vided with a threaded portion. The stud shaft ated each time a key lever is depressed. Having 200 is ?anged at its outer end to form a suitable 75' — 2,024,006 . ‘7 able stop 230. The stop 238 in the present em~ journal for the gear 2M, and is securely attached bodiment comprises a substantially Y-shaped por to the bracket 205 by means of a nut 208 and a lock nut 209. A friction disc 2“ is carried at the end‘ of rod 208 adjacent to the ?ange 201, g which disc is provided with a slot 2 l2 (more clear ly shown in Fig. 18) adapted to receive a pair of tion, the ends of the arms 24! and 242 of which are provided with laterally disposed lugs 243 and 224, respectively. The stem portion 285 is pro- 5 vided near its extremity with a pair of lateral diametrically opposed ears ‘M8 and 2M integral ly disposed portions 248 and 24'! adapted to iit pointer 203 is adapted to be rotated correspond 25I adapted to swing between the limiting lugs 243 and 2“. Stop member 25I is provided with the with the hub 202. The disc 2i l is thus rotatable snugly into an arcuate slot 240 in the dial 228. with the gear 20!. Interposed between the disc. The stem portion is also provided intermediate 1o 2" and a ?ange 215 integral with the hub 202 the lugs 248 and 241 with a threaded hole to re- m . and adapted to ?t over the ears H3 and 2“ is ceive a thumb screw 249, (Fig.- 20), the shoulder the index hand or pointer 203. Pointer 203 is of which is adapted to span the slot 248 so that normally held clamped betweenthe disc 2" and the tightening of the screw 249 will e?ect a ?ange 2l5 by the distending actionoi a helical clamping means for the stop member and permit ' 35 1i compression spring 2“) carried on the rod 206, its adiustability. At the jerk of the Y-portion formed by the the pressure exerted by the spring being varied by the adjusting nut 2|‘l. In this manner the arms 2“ and 242 there is pivoted a stop member ingly with gear 20!. ' go A magnet 218 suitably mounted on the bracket 205 is provided with an armature lever 2H1 pivoted at 22! to magnet mounting 222. The armature 2I-8 carries at one end an adjusting screw 228 which is arranged substantially in 88 axial coincidence with the rod 206. The screw 228 is normally held'in abutting relation with the rod 208 by means. of a spring 224 secured to an extension 225 of ‘the armature, the other end . oi’ the spring being attached to a spring post 226. 80 The adjustment just described is provided so that when the electromagnet H8 is energized by establishing a circuit, as shown in Fig. 16, from positive battery over wires SIB and 329, through winding of magnet 2l8, through contact 285 88. (when closed), over wires 33!, 328, 325, and 823, thence through contact 118 to ground, the attrac tion of the armature 2!!! caused thereby will ef feet the movement of the rod 208 against the action of the spring 2l8 an amount su?icient to w insure the relaxation of the pressure between disc 2“ and ?ange 215 to permit, the pointer to re turn to its beginning-of-line position, as will presently more clearly appear. ~ Having further reference to Fig. 17 it is seen 45' that bracket 205 is provided with a vertical por tion 221 on which is adjustably supported a sec toral or‘ fan-shaped indicator dial 228, more clearly shown in Figs. 20, 21 and 22. The dial 228 is pivotally held by a collar nut 229 about 50 which it is slightly rotatable, the amount of movement of which is limited by a slot and screw adjustment 23$ (Fig. 19). As indicated in Figs. 18 and 21, the pointer 203 is provided at its outer extremity with a reverted portion adapted to ?t 55 over and move along the arcuate edge of the dial 228. The annular pivotal portion of the pointer 203 (as clearly shown in Fig. 18) is provided on a ’ part of its peripheral edge with a series of pro iections 232, adjacent ones of which are opposite 80 ly de?ected to form a pulley-like groove to re ceive the ?exible cord 283, one end of which is attached to the pointer and the other end being secured to the extremity oia pointer return, lever 22% (Fig. 21). This lever 232 is pivotally mounted 25 on a bracket 235 integral with the base I and is provided with a short arm 236 to the extremity of which is attached one end of a pointer return spring 227, the other end oi’ which is secured to a spring support 238. 70 It is obvious, therefore, that when the mag net 218 is energized to e?ect the removal of the pressure of spring 2H8 from disc 21 i, the pointer integral stud 252 against which the pointer 20: w ' is adapted to strike. The purpose of providing a stop such as just described is to permit 0! a wide range of adjustability with a minimum length of ;lot 208, thus preserving the rigidity of the dial 28. ‘ 25 In order that the counting maybe accurate and the number of different thicknesses of matrices may be a minimum, each em, the unit of type measure, is divided into eighteen equal sub-units; eighteen having been foundiby experience to be 30 ' a suitable number. Matrices of certain numbers of sub-units in thickness are not used; that is, no matrices as thin as one, two, three, four or ?ve sub-units are used, and eleven different thick nesses have been found to be a practical number. as To compensate for the gap resulting from the ' omission or non-use or groups corresponding to widths of IS and I1 sub-units, ?llers 230 (Fig. 14) are provided. A ?xed stop member 240 is pro vided for the 18 sub-units group. Each tooth on go the unit wheel corresponds to one unit of these sub-units. It is well known in the typographical art that the amount of possible justi?cation in any assem bled line of matrices is determined by the number 45 of spacebands contained in it. As previously men tioned, a spaceband comprises a matrix-shaped portion in which is slidably carried a wedge por tion. _ The expansibility of the spaceband is den termined by the di?erence between the thin end so and the thick end of the wedge portion. Thus in order that the spaceband may be e?ective to Justi fy a line, the difference between the eggs-Mate or andtotalized the predetermined thicknesses oflength the matrices of lineinmust the be 55 equal to or less than (preferably the latter) the aforementioned di?erence in thickness, or ex pansibility oi’ the spaceband; so that, when the wedge portion is slidably moved along the matrix shaped portion, which is held in alinement with so the rest of the matrices in the line,‘ it will tend to “?ll up", as it were, the space left between the last matrix and the limiting gauge representing‘ the length of line. So, too, a similar result will be obtained when two or more spacebands have 65 been included in the line; in which event the spacebands will be effective to justify the line when the diii‘erence between the totalized thick nesses oi the matrices and the length of line is less than the sum of the differences in thickness, or 70 ' expansibility of the spacebands. In the manual operation of a composing ma 208 will be free to rotate in a clockwise sense (as ‘ chine, the keyboard operator may watch the as viewed in Figs. 18 and 21) due to the time of re 75 turn spring 231 until it is arrested by an adjust sembly of, the matrices and spacebands in the as sembling elevator, and thus personally determine ‘i5 - 8 . l ‘ 2,024,006. the Justi?ability of the line. However, in the au-_ tanee equal movement to one ratchet is imparted tooth,toand pointers a 263/ , tic operation of a composing machine by spending means of perforated tape the justi?cation must I and 254. The vgearing 256 to 256, inclusive, (Pig, be predetermined, and accordingly the present in 19), is so chosen as to impart a di?’erential move 5, vention, has provided a device which will at .all times indicate with exactitude the relation be tween the totalized thicknesses of the matrices in a line and the aggregate amount of expansion 10; provided by the spacebands. As shown in Fig.20, the dial 226 is provided ' adjacent its arcuate edge ‘with a scale or series of graduations representing the number of ems in a line of maximum length. As previously noted, the reverted end. of the pointer 263 moves 1.}; along this edge of the dial from left to right, to ward-zero, in response to the totalization of the matrix thicknesses by the counting mechanism. Thus, the distance from the pointer 263 to zero‘ indicates the amount of space left in the line to 29; be ?lled with-matrices, when the line contains no spacebands. ' However, when spacebands are in serted in the line, the space remaining to be ?lled varies with the number of 'spacebands inserted. So, to indicate-the justi?ability of the composed 23'j-line a pair of pointers 253 and 254 are provided, the distance between the pointers 253 and 254 in dicating the amount of expansibility of the space bands. Since the distance from zero on the scale to pointer 254 represents the sum of the thin edges of all the spacebands (whether one or more) in the line, and the distance from zero to pointer 253 represents the sum ‘of the thickest ends of the spacebands, it is manifest that the distance between the pointers 253 and 254 represents the 35,; di?'erence between these sums, which is the amount of expansion, or expansibility, of -the spacebands contained in the line.‘ . Therefore the ' space left in the line'to be ?lled, when spacebands are inserted, isrepresented by the distance be 40' tween the pointer .203 and any point betwun pointers 253 and 254. I I To eil’ect the differential movement of pointers 253 and 254 toward the left (from the zero posi tion)‘ the mechanism indicated in Fig. 19 is pro , ment to pointers 253 and 254, such that each time I; the ratchet 262 is stepped one tooth, pointer 233 will be moved-a distance corresponding to the thin end of the spaceband and pointer 254 will be moved a distance corresponding to the thick end, of the spaceband. Furthermore, the pitch of the 19;; teeth of ratchet 262 is chosen to suit the size of spaceband employed with the set size of the font of type used, and hence members 253, 256 and 262, being integral, may be rendered interchange-g able. . 15 A detent 266 pivoted at Hi to bracket 212, secured to portion 221, cooperates with ratchet 262 1 and pawl 265 to prevent the ratchet from slipping _ back when-the pawl 235 is moved into engage-' ~ ment with a succeeding tooth, thus maintaining 29;» ' the pointers 253 and 254 in their newly selected position. Referring to Fig. 17, the end-of-line or elevator keylever 213 is connected by a link 214 .to the auxiliary lever 215 pivotally carried at 216 on bracket 205. Lever 215 is provided with 25;; a laterally disposed arm 211 at the extremity of ' which is pivotally carried the release rod 213, the upper end of which is adapted to have shall and socket connection with arm 216 of the detent lever 266. When the keylever 213 is operated, the so; effect of which, as will appear, is to restore the entire apparatus to its original or beginning-oi line position, downward movement is imparted to rod 213 to rotate lever 263 (Fig. 19) in a counter-, clockwise direction against the tension of spring”; 231. Detent 266 thus is disengaged from the _ -, ratchet 262 and in turn co-acts with the emusion 2320f pawl 265 to cause also the release or; disengagement of the pawl. While the pawl 235 and detent 266 are thus momentarily released, 40;.‘ the ratchet 262 is free to rotate in a 001111661‘? - clockwise direction due to the action of spring 234 to impart motion in the opposite direction to ‘ pointers 253 and 254 which are thus returned to their zero position against an adjustable stop as" ' 45;. vided. Rotatably carried on a stud shaft 255, which is mounted on the portion 221 of bracket 7 263 mounted on bracket 212. 265 in axial coincidence with rod 266 (Fig. 23), are the pointers 253 and 254. vAs shown in Fig. 23, _- the pointers 253 and 254 are U-shaped at their ooifpivotal ends to provide a substantial bearing on Lever 215 is pro-, vided with an arm 234 which cooperates with a ' pair of contacts 235 in the circuit ‘which controls ‘magnet 2", which circuit has been previously described. An extension 233 is also provided on so‘ shaft 255. ‘_ Directing attention again to Fig. 19, the lever 215 to permit of the operation of a line pointers 253 and 254 are provided with segmental counter 231, shown in Fig.-21. ' ‘ ' a ‘ gear portions 256 and 251, which are adapted to mesh with segmental gears 253 and 256, respec '. tively, pivoted on the stud 26i. mounted in the bracket portion 221. Integral with the gear 253‘ is a ratchet segment 262. Gear 256 is provided with a slot and screw adjustment 263 and is con strained thereby to move with the gear 253. Gears 6O 253 and 256 and ratchet 262 normally tend to rotate in‘ a counterclockwise direction (as viewed in Fig. 19) due to the action of spring 254 distend ed between the gear 256 and the base I. ' _ The ratchet 262 cooperates with a pawl 265 piv I Line counter Y ' . It is desirable that the operator in the prepa- 55g ration of perforated tape for use in composing machines be apprised of the number of lines of‘ . type of printed matter he has prepared in the tape. This is important in order' that the reels of tape may be of the same size, and also to ap-, prise the operator that enough perforated tape‘ has been prepared to provide a sui?cient number of slugs or lines of type to ?ll the galley. It is especially important in magazine work where the 6.15 otally attached to the space keylever 266 (Figs. , I illustration cuts into the printed matter in which 6&. 1 ‘and 17). Keylever 266 is pivotally articulated to the space bar 266, similar to that used on ordi nary typewriters, as shown in Fig. 1. The de pression of the space keylever 266 causes a core 70. responding downward movement to pawl 235, which is yieldingly held into engagement with the ratchet 262 by a spring 261 secured to a suit able guide member 263. Each time the space key ‘ lever is operated or depressed the ratchet 262 is 75. actuated against the action of spring 264 a dis event the operator is usually given written instructions as to how long to make each line in order to avoid the illustration. . . ‘In the present invention automatic means has . been provided whereby the operator will -be in- 70; formed at all times of the number of lines he ' has prepared. Thus, a link 233 pivotally mount ed at the extremity of the extension arm 233 of ' lever 215 is adapted to operate a lever 236 'of , the‘counting device 231, which may be one 0215‘ 9 2,024,000 , any of the ‘well known standard makes. The adjacent to the target "305 so that only a portion counting device 281 preferably is adapted to be. thereof can be seen therethrough by the operator. mounted on a suitable bracket 29f adjacent to The target is adapted to be swung into either the indicating device. When the keylever 213 is of two positions by- the shift mechanism shown . operated, clockwise rotation is imparted to the lever 215 which through link 288 (Fig. 21) im parts clockwise rotation to the lever 209 fixed to the operating shaft of the counter 281 to operate the indicators therein in the usual manner. It is thus clear that every time an elevator or end of-line key is operated a record thereof is made in the counter 281. As is customary, the counter 28'! is provided with a lever 292, the function of which, when actuated, is to restore the indica 15' tors in the counter to their zero position. Signal mechanism Since the amount of line to be filled with char acters varies with the number of spacebands used 20.. in the line, and since the number of spacebands in the line governs the amount of justification re quired, it is apparent that as more spacebands are used in a line less characters can be placed in the same line so that it becomes necessary in in Fig. 2. ' ~ ‘ Referring particularly to Fig. 22, there is shown pivotally connected to arm 301 of the target 305 a link 308, the other end of which is pivoted to the outer extremity of arm 309 which, as is shown in Fig. 2, is ?xed to the rocker member l5. When 10 the rocker member is actuated into either its shift or unsliift position the target 305 will be correspondingly actuated. ’ .; . To move the rocker member l5. into the shift or rearward position,‘the keylever 8 is operated 15 _ and is thus rotated about its pivot shaft 8 in a counterclockwise direction (as viewed in Fig. 2) to impart through link I8 and bracket 2| \oppo site rotation to the rocker member 15 and likewise to arm 303. This movement of arm 309 causes 20 _ link 308 to move to the left, in Fig. 22, to impart in turn counterclockwise rotation to target 305, thus presenting the red portion (for example) of the target behind the aforementioned opening /-this event to apprise the operator sooner of the or aperture in the cover. The operator is thus 25 , arrival of a justifiable line; that is, that the line . apprised that the code bars l2 have been shifted is reaching a suitable length to permit automatic to e?ect the counting of upper case characters or matrix thicknesses. ' justi?cation, provision for which is made to indi Now, to move or return the rocker member I! cate this arrival by lighting a signal lamp 293. 30 vIn other words, the- lighting of a signal lamp 293 . to the unshift or frontward position the keylever 80 . apprises the operator when the matrix pointer or index hand 203 is about to move ‘over that portion of the scale indicated by the spaceband pointers 253 and 254 the range of justification . ' of the line. Since this range varies with the num 5 is actuated'and is thus rotated about its pivot shaft 1 in a counterclockwise direction (F18. 2) to impart through link l1 and bracket l9 counter rotation .to the rocker member 15 and also to arm 309. Due to this movement of arm 309, link 85 ber of bands in the line, the point at which the 308 is caused to move to the right (Fig. 22) to impart clockwise rotation to target 305 to present signal operates must also vary. The mechanism for operating the signal lamp the white portion thereof to the aperture or sight 293 is shown in Figs. 19, 22, and 23, and comprises hole in the cover, thus indicating to the operator a substantially 'U-shaped member 294 pivotally ‘.that the apparatus is in condition to count or 40. mounted on a boss 295 integral with the bracket portion 221. Member 294 is provided with a de pending arm 296 which is adapted to operate a pair of contacts 291 in the signal lamp circuit. Pivotally mounted on member 294 is a swinging member298 at each end of which is carried cam follower rollers 3M and 302. Referring to Figs. 50 -' totalize the thicknesses of lower case characters. or matrices. In the present embodiment, each code bar I2‘ is provided with two teeth or projections 65 (Fig. 2) so arranged that when one of the teeth is in 45 operative relation with its associated selector bar 43 the companion tooth will be disposed above 19 and 22 it is noted that pointer 253 is provided f and to one side of its associated selector bar so as not to be in operative relation therewith until with a cam portion 303 which co-acts with fol lower roller 302. It is also noted in Fig. 18 that the respective code bar is shifted to the alternate 60 . the pointer or index hand 203 is provided with a position. Thus, when the code bars l2 ‘assume cam portion 304 which cooperates with the cam their forward or 'unshift‘ position (as viewed in follower roller 30 I. Thus, it is observed that the Fig. 2) the tooth on each code bar which corre-' amount of rotation of member 295 is dependent sponds to the thickness of the lower-case char ‘in CA '. upon the combined action of cam portions 303 acter will be operative; and,’ when the code bars 55 . . and 304 upon the swinging member 298, the con tours of the cams being cooperatively related. Shift mechanism 60' Referring to Figs. 2. and 22 a device has been shown for indicating the shifted condition of the keyboard; that is, whether the keyboard is pre pared to perforate and count upper case or lower . case characters. In Fig. 22 a target 305 is shown pivotally carried on a bracket 306 mounted on the base i. The target comprises essentially an arou ate portion bearing two colors, preferably red and white, one color to indicate the shift and the other to indicate the unshift condition of the A cover .(not shown) is provided to ~ apparatus. cover the mechanism mounted on the base por l2 assume their rearward orshift position the companion teeth thereon will become: operative, which teeth correspondto the thicknesses 'of the upper case characters. ' ‘ ' . A detent member has been provided to main-_ 6° tain the shift mechanism including the target in either the shift or unshift position. Referring to Fig-22 this detent means comprises a member 3| l secured to the link 308 which member is pro vided with a V-shaped projection 3l2 which co- 65 operates with a roller 3l3 carried on the end of ' a detent lever 314 pivotally carried on a suitable bracket 3l5 mounted on the base I. Lever 3“ is provided with an arm 3l6 to the end of .which is attached one end of a spring 3“, the other ‘70 end of which is secured to a suitable spring post. t‘on of the apparatus with the exception of the As viewed in Fig. 22 the detent lever normally indicator dial 228, which is permitted to protrude‘ tends to rotate in a clockwise direction so that through the cover to render the dial visible to the roller 3l3 constantly exerts pressure against the operator. An opening is provided in the cover the detent member an thus holding the shift 76.‘ 10 2,024,006 mechanism against accidental movement and rendering it movable only upon the operation of the depression of the elevator or end-of-line key 213, in which event themagnet 2 I3 is energized to release the pressure applied to the index hand shift keylevers 5 or 3. 203 by the spring 2I3, thus permitting the index Electrical circuit hand to return to its initial or beginning-of-line a The electrical . circuit to control the various . position. functions of the apparatus is shown in Fig. 16, in which the various elements are located substan tially as they would appear, in a plan view of the 10 \device. The circuit for the motor 3“ extends from ‘positive battery over wire 3| 3, through the ‘winding of motor M1 to. negative battery. The circuit for the perforator electromagnet 53 ex \ Backspacer It is at times desirable to reverse the direction of the tape in order to effect a correction thereof. 10 This operation is performed manually and a novel device as shown in Fig. 13 has been provided for effecting this operation. The feed roll 33 and ratchet 53 as shown in Fig. 5 are mounted on the same shaft 34, which carries at its outer end a star 15 tends from positive source of current over wires 3 I3 and 32I, through the manually‘ operated con tact 322, thence ‘ through the winding of the wheel 334 (Fig. 13) af?xed thereto. Cooperating electromagnet 53, over wire 323, through contact I 13 to ground. The utility of the manually oper ated contact 322 will presently be. described. The 20 'circuit for the transfer electromagnet 32 extends from positive battery over wires 3I3 and 324,v through the winding of electromagnet 92 over wires 325 and 323, thence through the contact I13 to ground. The circuit for the escapement 25 ‘- electromagnet I11 extends from positive battery over wires 3I3, 324 and 323, through the winding - of the electromagnet I11, then over the wirev 321 with the star wheel 334 is a detent lever 335, one arm of which is provided at its extremity with a roller 333, the other arm having secured thereto a spring 331 which normally tends to rotate the M lever 335 in a clockwise direction. Loosely mount-' ed on the shaft 34 is a cam member 333 which is provided with the arm 333 adapted to ?t into a notch in a member 3“. ' , Member 3“ is provided with slots and is adapt- 25 ed to be slidably mounted on a pair of screws 342 and is normally held in its upward position by ~ through the normally closed cgptact'rll?' over , meansof the spring 343, which being attached to 'wires 323, 325 and 323, through contact I13 to 30 ground. The circuit for the signal lamp 233 ex tends from positive battery through lamp 293 the depending arm 344 of cam member ‘333 tends to urge member 333 in a counter/‘clockwise direc- ‘0 and contact 231 (when closed) to ground. Lastly, the circuit for the index hand release magnet 2I3 ment to membe'rf34l. Member “I is also pro vided with a thumb portion 345, which when depressed causes the cam portion 333v to rotate in a clockwise direction thus camming out the pin 85 343 integral with the pawl member 33, shown in Fig. 5. A forwardly presented depending por tion 341 is also provided on member 34 I, on which is pivotally carried a pawl 343 adapted to co ‘ - extends from positive battery over wires 3I3 and 323, through the winding of electromagnet 2"! through contact 235 (when closed), thence over tTon to impart, ‘through arm 333, upward move wires 33I, 323,325 and 323, through contact I13 to ground. .' The usefulness of the manually operated con 40: tact 322 will become apparent when it is under ‘ act with the star wheel 334 to effect the step-by- 30 stood that at times the operator finds it necessary step rotation, thereof each time member 3" is to‘ count out the remaining portion of the line ‘depressed. Pawl 343 is spring held against a he is composing to determine if the matter will fit stop 343 by spring "I, such that when member therein. To do this he wishes to disable the 3“ returns to its upward position after being once 115 perforator without affecting the counting mech depressed, the pawl 343 will yield so that the star 35 anism. Therefore, when he desires to perform ‘ wheel 334 will remain in its thus stepped posi the operation of thus counting out the line he tion. Thus, simultaneouslyv with the camming merely breaks or opens the contact 322 and pro out action of cam‘ 333 upon pin 3434.0 e?ect the ceeds as if to compose the line, and if he dis disengagement of pawl 53 from ratchet 53, the covers that the line will properly justify, he closes edge of member 343 co-acts with one of the points 50 the contact 322 'and repeats the latter operation, of the star wheel to rotate'the star wheel in a which at this time will aifect the 'perforator. clockwise direction. Each time the member 3“ This will, of course, also actuate the counting is thus depressed the feed shaft 34 is adapted to mechanismybut, since the possibility of justi?ca- 4 rotate one step in the reverse or clockwise direc tion of the'line is already determined, the dupli tion to eifect the reverse movement or back-spac- 66 cate operation of the counting mechanism is in this event merely incidental. . ing, so called, of the tape. ' In the operation of the apparatus herein de~ 'scribed there is a slight time interval provided between the closing of contacts I32 and 234 and the main operating. contact I13 so that the cir cults controlled by contacts I32 and 234 may be ?rst prepared and thereafter established by the closing of contact I13. The main operating con tact I13Mis provided with a resistance 332 and a condenser 333 for spark protection. The con tact I32, as previously described, is operated by the bar I3I in the selector mechanism also shown in Fig. 2. This bar I3I is actuated only upon 70 the operation of a function key at which time the escapement mechanism, which initiates the op erationof the'counting device, is disabled, due to the breaking of the circuit which energizes the escapement magnet I11. The contact 235 is op~ 75 ' erated by the lever arm 234. shown in Fig, 1'1 upon Modi?cation In Fig. 7,15 indicated a modi?ed- form of the to stop bar arrangement in which stop bars 332, analogous to stop bars 33, form a part of hell crank levers 353 which are operated directly by the keylevers instead of through a transfer mech anism. ‘As shown in Fig. 7 the bell crank levers 05 are carried on a pivot shaft 354 suitably mounted in brackets 355. To the depending arm of each bell crank there is=secured one end of an indi vidual spring 353,- the otherrend of which (not shown) is attached to the frame. The bell crank 70 353 thus normally tends to rotate in a clockwise direction due to the action of spring 353. Thus, when a keylever is depressed, one of the bell crank levers 353 is caused to rotate in a counterclock wisedirection against‘ the action of spring 353 to 75 i i I i i i 11 2,024,008 bring the right end of the horizontal arm 352 into the path of the stop lug I36 on the unit rack 83. The bell crank levers are held against displace ment by spring actuated detent member 351 which 5 is a substantially U-shaped lever pivotally mount ed on ‘a pair of pivots 358. This member 351 is also provided ‘ with a shaft 358 on which are ratchet 58. When the magnet is deenergized spring 62 draws the pawl down, rotating the ratchet 58 and feed roller 63 (both of which are. a?lxed to the same shaft 64) one step in a well known manner, thus feeding the tape to position 5 , it for the next perforating operation. Thus, the tape is perforated in accordance with the op‘ mounted anti~friction rollers 36I individual to and adapted ‘to cooperate with a laterally dis 1i)“ posed arm 362 integral with each bell crank 353. The detent member 351 is normally biased against the arms 362 by its spring the tension of which is such as to overcome the tension of an individual spring 356. Thus, when a stop bar-is selected it 15 will be held in the selected position by, the de tent 351 until some other stop bar is selected. General operation The details of the apparatus having been de scribed, a better understanding of the general op eration thereof may now be obtained from a de 20 scription of particular key selections and the vaj ~ rious operations incident thereto. eration of the keylever 2. The energization of electromagnet 82 effects the transfer of the selec tion of Y-lever 52 to the stop bars 88 in the fol# lowing manner. The operation of electromagnet 82 causes, by its attraction, the clockwise rotation of armature lever 18 (Fig. 5) to in turn impart opposite-rotation to transfer ball 15. Since the selected Y-lever 52 has been oscillated to the left, 15' its arm 61 is disposed below arm H of} the trans fer lever 13. Thus, the operation of bail 15 causes arm H to engage arm 61 and consequently lever‘ 13 is rotated about the end of arm H as a ful crum to effect the movement of the associated 20 stop bar 88 toward the right into the, path of lug I36 on the unit rack 83. The energization , and subsequent deenergiza tion of escapement magnet I11 permits the mem ber H4 by virtue of stop disc H5 and pawl I3I 25 to revolve 180°, thus imparting to cam II5 like 25'? Referring to Fig. 1, the key tops 3 are provided with indicia (not shown) analogous to the well known typewriter keyboards, wherein two sets of . rotation. Upon the initiation of the rotation of designations are provided, one for the lower case cam H5 the follower roller I6I is acted upon by and the-other for the upper case. Assuming that the cam H5 so as to impart clockwise rotation 30’ the code bars I2 (Fig. 2) are in their forward to the operating lever I56, arm I55 of which will 30 thus be raised and in so doing lever I53 is caused or lower case position, and that a character key lever 2 has been operated, a permuted combina .to rotate about its pivotal connection with link tion of bars 25 and 26 in selector mechanism 23, I52, thus elevating the pivot I54 between the lever I53 and the-unit rack slide 85. In this ' ‘ and one of the bars 43 in selector 24 will be simul 85‘ taneously depressed. The selection of bars 25 and manner slide 86 is elevated so‘as to bring the unit 35" 26 will "effect through rocking members 21 and rack 83 into engagement with the unit wheel 38.‘ horizontal bars 35 the selection of levers 31 and The continued rotation of the operating lever I56 in a’ clockwise direction‘ causes the lever ‘I53 punch interference bars 42 in corresponding‘per to rotate about its pivot I54 as a fulcrum where muted combinations. (.01 At the same time, one of the projections 55 of the selected code-bar I2 will cause the depres sion of that bar 43 in selector mechanism 24 which represents the thickness of the matrix cor responding not only to the key operated, but also 451 to the shift condition of the code bars I2; that is, I . each key- represents two characters (except func tion keys), one in the lower case and one in the upper case, which characters may possibly be of different thicknesses and thus require a differ~ 60 em counter bar 43 to be selected so as to operate the counting mechanism differently. The de pression of bar“ will effect through levers 44 ‘ and 45 and horizontal bar 48 the oscillation of associated Y-lever 52. Simultaneously, with the 55 depression of selected bars 25, 26 and 43 will oc our the depression of universal bar I88 (Fig. 2), which near the completion of the key stroke ef fects the closing of the main operating contact I18 (Fig. 6). The time of closure of contact I18 60 is so regulated by the adjusting screw I81 as to insure the prior selection of levers 31 and 52 and punch interference bars 42. V The closing of contact I18, as noted in Fig. 16, by“ the link- I52 is given a downward movement 40 ‘ to impart clockwise rotation to pawl member I33 about its pivot I38 against the action of spring I44. ' The lateral portion I58 of pawl member I33 is thereuponmoved beneath the end of the unit rack slide 85 to insure during the ensuing opera- 45 '- . tion'vof the escapement means the engagement of pawl I33 with unit wheel 88 prior to the disen gagement of rack 83 to prevent the uncontrolled escapement of unit wheel 88. ~ The unit wheel, which constantly tends to ro- 59-" tate by reason of being fixed to shaft I III, is thus released for rotation and the unit rack being free to move is carried toward the right until the lug I35 is intercepted by. one of the stop bars". At this point the cam portion I63 acts upon the 55 follower roller I82 so as to reverse suddenly the direction of rotation of the operating lever I55.‘ The unit rack slide 86 cannot at this time be lowered because of the engagement oi’ its forward > - extremity with the lateral portion I58 ofpawl-?o ' member I33. Lever I53, therefore, is causedto rotate in a counterclockwise direction about the pivot I54, thus causing the link I52 to be elevated and escapement magnet I11. (Of course, it is un derstood that the closing of the manually op erated contact 322 is a condition precedent to the which in turn permits pawl member I33 to rotate in a counterclockwise direction, due to the action '65 " of its spring I44, into engagement with the unit wheel 88,,causing simultaneously the withdrawal 0: lateral portion I 58 from engagement with slide 7 operation of the apparatus). The energization 8 . effects substantially simultaneously the energiza 65 tion of perforator magnet 56, transfer magnet 82 70 of electromagnet 56 effects the perforation and ' feeding of the tape, by rocking armature 51 clockwise‘, forcing the interference bars 42 upward against the punches 65 to perforate the tape BI. Simultaneously .with the perforating operation, 75 pawl 58 will move up to engage the nest tooth on p The continued rotation of the operating lever -0. I56 in a counterclockwise direction now causes the lever I53 to rotate about its pivotal connec-._ tion to link I52 in a like direction to with draw the rack 83 from engagement with the unit wheel as. The unit rack as is thereupon 75 *' 12v 2,024,009 - placed under the influence of the spring actu ated return lever I21 and is carried toward the left thereby to its stop I". This rota tion ofvunit wheel 98 is imparted through shaft IOI, pinion I32 and gear 20! to matrix pointer 203. As succeeding character keys are depressed the index hand or matrix pointer will be advanced along the dial in amounts varying with the thick ness of the matrices corresponding'to the key 10 depressed. ' _ ' ' ' Now, if it is desired to perforate and count an upper case character it is ?rst necessary to de press the shift keylever 8, in which event the mem- ber l5 (Fig. 2) will be rocked rearwardly' and the code bars i2 will assume their rearward position. Since the shift operation is what is termed a “function”, no counting operation is necessary because there is no matrix corresponding thereto. Therefore, since the perforating operation pro ceeds as usual, it becomes necessary to disable the counting mechanism. ‘ To do this, an additional pair of permutation bars H9 is provided which are operable only by “function” keylevers, which are those keylevers . that initiate the operations‘other than counting, in which case the counting operation is not re quired. Thus, when‘ a function keylever (as in the present instance, the shift keylever 6) is op erated, it e?ects through its associated horizontal 30 .bar Ill (analogous to bars 35 and 49), Figs. 2 and 16, the opening of the normally closed con tact I22. Consequently, the closing of the main operating contact I18 (which is operated invaria bly) will, in this event, establish the circuits for . the perforating magnet and transfer magnet only. The energization of the perforating magnet ef fects the perforating operation to thereby punch and feed or step the tape in the regular manner. It will be recalled that the purpose of always op erating the transfer magnet simultaneously with the perforating magnet is to effect the unlatch ing of the operating contact I18, Fig. 6. ' Thus, the depression of character keys follow» ing the operation of the shift key will affect the various devices in a manner similar to their op eration prior~thereto, except that the counting complish ‘this the elevator or end-of-line key in depressed which, as already seen actuates keylever - 213 (Fig. 1'1) to effect through lever 21! the clos ing of contact 285, and operation of rod 218. The closing of contact 285 permits the electromagnet M8 to become energized, the effect of which is to relieve the pressure on‘the index hand or pointer 2031to permit its return to its initial posi tion. The operation-of rod 21! effects the release of pawls 269 and 265 from ratchet 262 to permit 10: the return of the pointers 2" and 254 to their original position. - ' Since the elevator key is also a function key, no code bar I2 is associated therewith and hence the counting mechanism is not affected thereby. 15, However, a perforation is made in the tape, the effect of‘ which upon the line casting machine is to initiate the operation of the elevator mecha nism, thus causing the loaded assembly elevator to be raised to the line delivery position, where- 20 upon the composed line of matrices and space bands- is delivered to the casting position, in a manner well known in the art to which the pres ent invention pertains. . Although the present invention has been (115- 25, closed in connection with line casting machines, it is, of course, understood that the invention is capable of embodiment in many and widely varied forms other than that specifically disclosed with- _ out departure from the spirit and scope of 'the 30,. invention as de?ned in the appended claims. What is claimed is: ' . 1. In a keyboard perforator, a counting device, a scale, an index hand and spring return means therefor, a series of keys, mechanism including 35 .; friction means to move said index hand with re spect to-said scale in accordance with the opera . tion of said counting device as determined by the key operated, and electromagnetically operated means invariably controlled by one of said keys to 40v render said friction means ineffective to move said index hand to enable said return means to restore said index hand to its initial position. 2. In a keyboard device, a plurality of keys, a shaft, a scale, an indicator, motive means con- 45 _ stantly tending to govern the incrementally and indicating mechanism will be operated to progressive movement of said shaft, means in different extents or amounts for the same key variably controlled by said keys to release said lever. When the space key 2" is depressed the space keylever 286 is actuated and a permuted combi Since the space operation is a function, no code shaftfor rotation, means to transfer the move ment of said shaft to said indicator, a special key, 50 and electromagnetic means controlled by said special key to render said last mentioned means ineffective to move said indicator. 3. In a keyboard device, a plurality of keys, a bar I! is necessary as the counting mechanism is' not actuated. However, as the effect of the per means to rotate said unit wheel variable amounts nation of bars 25 and 26 are operated to set the punch interference bars 42 correspondingly. counting device comprising a single unit wheel, 55» foration‘in the tape, corresponding to the space according to the keys depressed, an indicator dial, function, on" the line casting machine is to release an index hand, said index hand operable variably a spaceband for insertion into the composed line to correspond with the operation of the unit of matrices, evidence of this fact must be made - wheel, a special key, a pair of pointers, and means 60 controlled by said special key to move said point on theindicator of, the keyboard device. Eor this purpose the pair of pointers 258 and are proportionally each time said special, key is 2" are employed, which‘are moved differentially, depressed, and the relative actuation of said index through the instrumentality of ratchet 262 and hand and-said pointers indicating at all times the r, differential gears 25‘ and 259,‘ according to the justi?ability of the line being composed. 4. In a keyboard perforator, a perforating de- M number of spacebands used in the line and ac cording to the aggregate amount of expansibility vice, a counting device, selector mechanisms in of the spacebands. It has also been noted how the dividual to each of said devices and arranged in pair of pointers 253 and 25! cooperate with the the same plane, a series of keylevers, a corre 70 pointer 203 to apprise the operator by means of sponding series of code bars juxtapositioned to the signal lamp 292 of the approach of a justifiable line. " ' , Now, upon the arrival of a justifiable line it is necessary to restore the entire, apparatus to its 75 ‘original. or beginning-of-line position.- To .ac-Y said keylevers, and means to move said code bars 7- ' in unison to either of two positions so that said perforating device is operated invariably in the same manner and said counting device can be operated in either of two different manners each n time a keylever is depressed. ‘5 13 9,024,006 and means controlled by said keys to actuate 5. In a keyboard perforator, a counting device vice, said ?rst mentioned escapement means step by step to'e?ect the operation of said last mentioned members alternately engageable with said unit escapement means variably according to the key ~wheel, means associated with said pawl member depressed to operate said counting device cor- g , to maintain the engagement of said rack with respondingly. 12. In a keyboard perforator, an indicating de ‘comprising a single unit wheel, a pawl member, a rack member, cam operated means to render said said unit wheel, and auxiliary cam means to effect a suddenreversal of action of said cam operated means to insure through the cooperation of said second recited means the engagement of said 10 pawl and said unit wheel prior to the disengage ment of said rack from said unit wheel. vice including a scale, an index hand, a counting device including a unit wheel, a detent member, a rack member, means to render said members 10 6. In combination with a keyboard perforator suitable for the production of perforated tape representing lines of composition, a scale, .a 15 pointer movable variably with respect to said scale to indicate the cumulative widths of char acters, an additional pair of pointers, and dif ferential gearing for rotating said pair of pointers different distances for each effectiveness thereof for indicating a different condition. alternately engageable with said unit wheel, a series of stop bars adapted to cooperate with said members to control the escapement of said unit wheel in varying amounts to actuate cor respondingly said index hand with respect to said 16 scale, and electromagnetic means to render said counting device ineffective to actuate said ‘index hand to control the return of said index hand to its normal position. - 13. In a keyboard perforator, a coimting de- so ‘vice including a unit wheel constantly tending to ' 7. In a keyboardperforator, a perforating de rotate, an indicating device including a scale, an vice, a counting device, selector mechanisms in dividual to each of said devices and arranged in said devices, a detent member, a rack member, the same plane, a series of key levers, a corre index hand, mechanical interconnection between means to render said members alternately en- 25 sponding series of code bars juxtapositioned to gageable with said unit wheel, a series of stop manner and said counting device can be operated tion to control the return of said index hand'to its normal position. bars adapted to cooperate with said members to said key levers, a pair of special keys, means con trolled by the alternate operation of said special control the escapement of said unit wheel in keys to move said code bars simultaneously to _ varying amounts to actuate correspondingly said index hand with respect to said scale, and elec- 30 either of two positions whereby said perforat ing device is operated invariably in the same tromagnetic means to disable said interconnec in either of two different manners each time a key lever is depressed. , 8. In a keyboard perforator, a perforating de vice, a counting device, selector mechanisms in dividual to each of said devices, a series of key levers, a corresponding series of code bars indi vidual to said key levers, a'rockable member, each 40 of said code bars having a pivotal connection with said rcckable member and a slidable connec tion with its associated key lever, a pair of special keys, the alternate operation of said special keys being effective to actuate said rcckable member 45 to move said code bars simultaneously on their slidable connections to either of two positions whereby said perforating device is operated in variably in one way and said counting device is operated in either of two different ways each time a key lever is depressed. 9. In a keyboard apparatus, a counting device, a perforating device, a plurality of auxiliary de-v vices, selector mechanisms for controlling said devices variably, and a common bar associated with said selector mechanisms adapted to be in variably operated to initiate simultaneously se lected ones of said devices to be operated. 10. In a keyboard perforator, a single shaft, a counting device including, a single unit wheel se cured to said shaft. motive means carried on said shaft, frictional connection between said means and said shaft whereby said means tends to impart a constant torque to said shaft, a ?rst es capement means to control through said unit wheel the amount of rotation of said shaft, and a second escapement means to control the cyclic operation of said ?rst escapement means. I 11. In a keyboard apparatus, a series of keys, a single shaft, a counting device, ai constantly movable element mounted on said shaft, an inter mittently movable member frictionally mounted 14. In a keyboard perforator, a counting de vice, an indicating device, mechanical interc'on- 35 nection between said devices including a single shaft, motive means mounted on said shaft, fric- - tional interconnection between said means and. said shaft whereby a constant torque is imparted to said shaft by said means, selector mechanism 40 individual to said counting device, escapement means cooperative with said motive means and said mechanism to effect the selective operation of said counting device to actuate said indicating device correspondingly, and means to disable said 45 interconnection. ‘ 15. In combination with a keyboard perforator suitable for the production of perforated tape representative of consecutive characters and word spacers, a series of keys, a scale, a pointer 50 movable variably with respect to said scale in response to the operation of said keys to indicate the cumulative widths of characters, an addi tional pair of pointers, means for operating said pair ‘of pointers differentially to indicate the 55 cumulative expansibility of the word spacers, a special key, said key when operated adapted to effect a relative change in said pair‘ of pointers to correspond to the increment of expansibility provided by a spacer. 60 -16. In a keyboard apparatus. a counting de vice comprising a single unit wheel constantly tending to rotate, a pawl member, a rack, a rack carrier, a biasing member for said rack, a series of selectable elements,a first pivot, a second pivot, 66 a lever including said pivots, cam operated means to actuate said lever about said ?rst pivot to effect the engagement of said rack and said unit wheel thereupon to actuate said lever about said second ‘ pivot to effect the disengagement of said pawl 70 member from said unit wheel, means associated with said pawl member to maintain through the on said element, frictional connection between - instrumentality of said rack carrier the engage- ‘ said shaft and said element, uniformly stepped escapement means for said member, variably stepped escapement means for said counting de ment of said rack andgsaid unitwheel whereby said unit wheel is permitted to rotate an amount 75
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