Патент USA US2391665
код для вставкиDec. 25, T945. ‘E. WlLDT ETAL 2,391,665 KNITTING MACHINE Filed Aug. 23, 1944 3 Sheets-Sheet l INVENTOR5, 11% I ? MM J. W A TTORNEY '! Dec. 25, 1945. E. WILDT ET AL 2,391,665 KNITTING MACHINE Filed Aug. 23, 1944 3 Sheets-Sheet 2 Aw\ \ im ; ZVENTORS,‘ I ' J ATTORNEY, Dec. 25, 1945. E_ wlLDT ET AL 2,391,665 KNITTING MACHINE // F/GS. sc , Z‘ 50’ 6 6 5e 52‘ (‘Mum M” A 77DRNEY_ ‘ Patented Dec. 25, 1945 2,391,665 UNITED ‘STATES PATENT OFFICE 2,391,665 ‘KNITTING MACHINE Edwin Wildt, Henry Harold Holmes, and Albert Henry Widdowson, Leicester, England, assign ors to Wildt and Company Limited, Leicester, England, a British company Application August 23, 1944, Serial N0. 550,739 In Great Britain September 6, 1943 ' This invention relates to knitting machines, and (C1. 66-24) 1/ is supplied to the set of needles 5, 6, while at has for its object to provide such a machine for producing a knitted fabric of an interlock struc ture with transferred stitch or locp effects. A fabric of this character forms the subject-mat ter of our co-pending United States application the other location there is a second feeder plate 8 through which a yarn 111 is fed independently to the other set of needles 51, 61 (see Figure 4). As shown in Figures 1 and 2, the cylinder nee dies 5 are formed with knitting butts 5a disposed 10 Claims. Serial No. 550,740, August 23, 1944. In the accompanying drawings, to travel in the direction of the arrow A in a track T in the cam box 2, while the alternate cylinder needles 51 are formed with knitting butts 5b dis Figure 1 is a vertical sectional view of the head of a cylinder and dial machine constructed in posed in a lower plane to travel in the same direc tion in a track ‘I’1 in the said box. Moreover, all Figure 2 is a developed view of the cylinder of the needles in the cylinder are of loop trans cam system of the machine, as seen from inside ferring form. Thus, as shown more clearly in the cam box, showing also a few of the cylinder Figure 5, each of the said needles includes a loop needles and associated jacks, engaging shoulder to and a loop expanding for Figure 3 is a plan view of the dial .cam system, mation 5d whereby the stitch or loop I’ to be Figure 4 is a view somewhat similar to the left transferred is engaged and retained in a later hand side of Figure 2 but showing, in addition, ally expanded condition so as to enable it to be the set out of the cylinder and dial needles and entered by the hook of the dial needle to which it the feeders for supplying yarns independently to 20‘ is to be transferred. To‘facllltate such entry of the respective sets of these needles as will be a loop by a dial needle hook, each cylinder needle hereinafter described, is relieved at the appropriate side thereof in the Figure 5 is an enlarged detail perspective view manner indicated at 5e and also similarly re-_ showing a loop in the course of being transferred lieved at the opposite side at I! to enable the accordance with the invention, ' fro‘iin a cylinder transfer needle to a dial needle, 25 needle to ?ex laterally. The main body portion an Figure 6 is a further detail perspective view showing a dial loop being transferred to a cylin der needle. Like parts are designated by similar reference characters throughout the drawings. so er ends of the cylinder needles 5 and 51 are shown terminated at their respective ‘cam tracks-for The machine illustrated includes a cylinder I the sake of clarity as hereinbefore mentioned‘: ‘ surrounded by a cam box 2, and a dial 3 sur mounted by a dial cam cap 4. The said cylinder and dial are furnished with two sets of needles, one set comprising cylinder needles 5 and dial needles 8 so arranged as to knit a ribbed web of of each of the cylinder needles is made thicker than the corresponding swaged needle hook por tion to enable it to be ‘comparatively deeply milled at the two places lie and 5)‘. InFigure 4, the low-v in practice, however, all of such needles are of the same length to enable them to be used in 35 conjunction withrintermediate selector Jack; I adapted for operation selectively whereby any desired cylinder needle or needles can be caused ill rib combination, and the other set compris to transfer a stitch or stitches thereon to a di ing cylinder needles 51 and dial needles 81 simi rectly opposite dial needle or needles. That is larly arranged to knit another ribbed web of the 40 to say, the selection is common to all the cylin same rib combination. The needles 5 and 51 al. der needles, irrespectively as to whether they ternate in the cylinder I, while the needles 8 have knitting butts in the track T or in the track and 61 similarly alternate in the dial 3 so that T1. ~ The cylinder needle selecting mechanism in the dial needles are located directly in line with the cylinder needles as will be clear from a con 45 cludes an intermittently rotatable selector drum Iii (Figure 1) furnished with bits having butts sideration of Figure 4. It is important to note li'a disposed at different heights according to the that in this ?gure the needles are represented selections to be effected. A bank of interme in a purely diagrammatic fashion to show the diate selector cams I2 is provided and these cams needle set-out more clearly; actually, the alter are adapted to engage with corresponding butts nate cylinder needles instead of being of respec Ila on presser members II located in the cylin tively different lengths as shown in Figure 4, are of the same length as and for the purpose here der tricks in front of the lower ends of'the Jacks inafter explained. In the machine there are also 9. These lower ends of the jacks are resilient and normally sprung outwardly. Each jack 9, two feeding locations. At one of these there is provided a feeder plate 1 through which a varn moreover, has a lower butt to and an upper butt ‘ 2 2,891,665 9b to engage beneath the associated needle. The construction and arrangement is such that the shaped lower extremities 9c of those jacks which are pressed in by presser members 13 are en Serial No. 551,518, August 28, 1944. Alterna tively, more particularly as regards a machine of the cylinder and dial type adapted to produce interlock fabric as hereinbefore set forth, the gaged by the leading edge Ila of a retaining cam I4 and thereafter automatically maintained in that position, whereas the lower butts 9a of the remaining jacks are left in position to be engaged by a jack raising cam I5 (see Figure 2). When embroidery mechanism may be generally of that form speci?cally described with reference to the drawings in United States speci?cation No. tively adapted to operate the needles in conjunc dial 3. 2,342,541. It will be understood that where a needle loop ever a jack is allowed to be raised in this way 10 (e. 8. plain) is transferred, the needle from which this loop has been removed takes ground yarn by the cam IS, the associated cylinder needle ‘at the next course but has no old loop thereon will be elevated and its knitting butt engaged by to pull the yarn through. Consequently, in ef a transfer cam, whereby the needle is further fect, a relatively wide sinker loop is formed be raised to transfer height at which the loop there on can be penetrated and taken by a dial needle 15 tween the preceding and succeeding (e. g. rib) loops in the same course, but at the next course as hereinbefore described. Thus, for those nee a new 100p (e, g. plain) is pulled through this dles having knitting butts 5a in the track T there wider loop. is a transfer cam 18, whilst a similar transfer For example, Figure 7 shows a vertical sec cam I1 is provided in the track T1 for engage tional elevation of the head of the machine simi ment with selected knitting butts 5b at appro lar to Figure 1 and to the same scale, but with priate times for the stated purpose. After cylin the essential part of an embroidery mechanism der needles have completed a transferring action added. it is necessary to open the latches 1 thereof, for A cylinder b is ?xed to a gear a so that it is which purpose there are provided needle raising cams I8 and 19 in the tracks T and T1 respec 25 driven with the needle cylinder i and needle tion with a latch opener-shown diagrammati cally and designated by the numeral 20 in Figure I A bearing 0 supports and locates the cylinder b to enable feeder d to take up its correct loca tion in relation to the needle 5 shown dotted in 2. The needles are thereafter restored to their normal low level by guard cams 2| and 22. In 80 thread wrapping position. A fulcrum f allows the feeder d to be moved the ‘track T there are also clearing and stitch back and forth when operated by any type of cams 23 and 24 respectively for operating the selector acting on butts e to move the wrapping cylinder needles 5, and similar cams 25 and 26 portion g of the feeder d, the portion a being in the track T1 for operating the needles 51. Somewhat similar‘ arrangements of transfer 35 twisted, as is common practice to pass needle hook on opposite sides during the movement of needles and pattern controlling means may be the feeder. A retaining spring h secures the provided in association with the dial 3 of the feeder d in correct location. machine. Accordingly, in the example illus A bobbin rack i is secured to the gear a. The trated, all of the dial needles 6 and 81 are also of loop transferring form. The needles 6 have 40 rack carries a bobbin :1 the yarn of which passes through a guide 122 on the inside of cylinder to the feeder end 0. As will be appreciated, there may be as many embroidery thread feeders d and bobbins d as the track DTthere is a clearing cam 21, a stitch cam 28, a latch opener cam 29 and a transfer 45 needles, or any lesser number, according to re quirements. cam 30. Similarly, in the track DT1 there is a What we claim then is: clearing cam 3|, a stitch cam 32, a latch opener 1. In a knitting machine, in combination, a cam 33 and a transfer cam 3|. In conjunction plain needle bed, an associated rib needle bed, with the dial cam system there is provided a needle selecting mechanism of the character de 50 needles for operation in said beds, the plain and knitting butts 6a accommodated in a track DT, whilst the intervening dial needles 81 have knit ting butts 6b accommodated in a track DT1. In scribed in our U. S. Patent No. 2,153,019. Some of the selectors included in this mechanism are indicated at 35 in each of Figures 1 and 3, To economise space in the drawing these selectors are shown close to the dial. In the transference 55 rib needles being arranged in two independently operable sets with one half of each set of needles in alternating relationship in one bed and the remainder of each set in similar relationship in the other bed, so as to be capable of knitting two interlocked ribbed webs, and each of desired needles in at least one of the sets being of loop of dial loops dl to cylinder needles, the knitting butts of the dial needles concerned are brought transferring form in which connection it includes by the corresponding selectors 35 into the range a loop engaging catch and a loop expanding of the relevant dial transfer cams which func tion to advance the said dial needles to such an 60 formation whereby upon appropriate endwise movement of such needle a loop can be engaged, extent that cylinder needles at that moment expanded and retained so as to enable it to be passing up the rise of a cam 36 (or 31) provided entered by an appropriate receiving needle, yarn in the cylinder cam system will enter the dial feeding means for introducing yarns independ loops in the manner shown in Figure 6. After a dial needle has completed a transferring oper 65 ently to the respective sets of needles, correspond ing sets of cam systems for causing the respective ation it is withdrawn by a cam 38 or 39, as the case may be. sets of needles to knit, and loop transferring mechanism including means for imparting the Whenever selected cylinder needles are raised to transfer their loops to dial needles the latter aforesaid endwise movement to the transfer are there to receive these loops by reason of be 70 needles, for the purpose herein speci?ed. ing advanced by a cam 40 or 4|. 2. In a circular knitting machine, in combina The machine hereinbefore described may be tion, a cylinder, plain needles in said cylinder, a equipped with plating mechanism such as the dial, rib needles in said dial, the said plain and embroidery mechanism described in the speci? rib needles being arranged in two independently cation of co-pending United States application 75 operable sets wherein the needles of one set alter 2,891,865 nate with the needles of the other set in both the cylinder and the dial so that the rib needles are located directly in line with the plain needles, and each of desired needles in at least one of the sets being of loop transferring form in which connec tion it includes a loop engaging catch and a loop expanding formation whereby upon appropriate 3 tion, a cylinder, plain needles in said cylinder, a cam box which surrounds the cylinder and is pro— vided with cams for operating the plain needles, a dial, rib needles in said dial, a cam cap associated with the dial and provided with cams for operat ing the rib needles, the said plain and rib needles being arranged in two independently operable endwise movement of such needle a loop can be engaged, expanded and retained so as to enable sets wherein the needles of one set alternate with the needles of the other setiin both the cylinder it to be entered by an appropriate receiving 10 and the dial so that the rib needles are located needle, yarn feeding means at at least two loca directly in line with the plain needles and all of tions for supplying yarns independently to the the needles in the cylinder being of loop trans respective sets of needles, different sets of cams ferring form in which connection each of the for operating the said sets of needles and causing cylinder needles includes a loop engaging catch them to knit, and means for operating desired 15 and a loop expanding formation whereby upon transfer needles suchwise that knitted loops appropriate endwise movement of such needle a thereon are transferred to directly opposite loop can be engaged, expanded and retained so as needles. to enable it to be entered by an appropriate re 3. In a circular knitting machine, in combina ceivlng dial needle, alternate plain needles, more tion, a cylinder, plain needles in said cylinder, a 20 over, having knitting butts in an upper track and cam box which surrounds the cylinder and is pro the intervening plain needles similar knitting vided with cams for operating the plain needles, butts in a lower track in cam systems in the. a dial, rib needles in said dial, a cam cap asso aforesaid cam box, yarn feeding means for in-, ciated with the dial and provided with cams for troducing yarns independently to the respective operating the rib needles, the said plain and rib 25 sets of needles, and means for so operating desired needles being arranged in two independently op plain needles that knitted loops thereon are trans erable sets wherein the needles of one set alter ferred to directly opposite rib needles, all for the nate with the needles of the other set in both purposes herein described. ' the cylinder and the dial, so that the rib needles 6. In a circular knitting machine, in combina are located directly in line with the plain needles 30 tion a cylinder, plain needles in said cylinder, a and each of desired needles in at least one of the cam box which surrounds the cylinder and is sets being of loop transferring form in which provided with cams for operating the plain connection it includes a loop engaging catch and needles‘, a dial, rib needles in said dial, a cam a loop expanding formation whereby upon appro cap associated with the dial and provided with priate endwise movement of such needle a loop 35 cams for operating the rib needles, the said. plain can be engaged, expanded and retained so as to and rib needles being arranged in two independ enable it to be entered by an appropriate receiv ently operable sets wherein the needles of one ing needle, spaced feeders at which yarns are set alternate with the ‘needles of the .other set supplied independently to the respective sets of in both the cylinder and the dial so that the rib needles, the needles in the said sets being pro 40 needles are located directly in line with the plain vided with butts in two different planes and pre needles and all of the needles, in the cylinder arranged in the cylinder and dial in conjunction being of loop transferring form in'which con with systems of the aforesaid cams respectively nection each of the cylinder needles includes a disposed in the cam box and dial cam cap and loop engaging catch and a loop expanding for having two separate tracks for the butts in the 45 mation whereby upon appropriate endwise move different planes suchwise that the two sets of ment of such needle a loop can be engaged, ex needles knit respectively at the spaced feeders, panded and retained so as to enable it to be and means for so operating desired transfer entered by an appropriate receiving dial needle, needles that knitted loops thereon are transferred alternate plain needles, moreover, having knit to directly opposite needles. 50 ting butts in an upper track and the interven ing plain needles similar knitting butts in a lower 4. In a knitting machine, in combination, a track in cam systems in the aforesaid camv box, plain needle bed, an associated rib needle bed, yarn feeding means for introducing yarns inde needles for operation in said beds, the plain and rib needles being arranged in two independently pendently to the respective sets of needles, a set operable sets with one half of each set of needles 65 of jacks with patterning butts thereon for actu in alternating relationship in one bed and the ating the transfer needles, means for action on remainder of each set in similar relationship in the other bed, so as to be capable of knitting two interlocked ribbed webs, and each of desired needles in at least one of the sets being of loop transferring form in which connection it includes a loop engaging catch and a loop expanding these butts to effect a selection of said jacks, a cam which'is adapted to raise certain of the Jacks and to miss others as determined by the selection, and a transfer cam in each of the aforesaid tracks for raising selected plain needles to such a height as to enable loops thereon to be entered and received by directly opposite rib needles, all for the purposes herein described. movement of such needle a loop can be engaged, expanded and retained so as to enable it to be 65 '7. In a knitting machine, in combination, a entered by an appropriate receiving needle, yarn plain needle bed, an associated rib needle bed, feeding means for introducing yarns independ needles of the latch type for operation in said ently to the respective sets of needles, correspond beds, the plain and rib latch needles being ar ing sets of cam systems for causing the respective ranged in two independently operable sets with sets of needles to knit, loop transferring mecha 70 one half of each set of needles in alternating nism including means for imparting the aforesaid relationship in one bed and the remainder of endwise movement to the transfer needles, for each set in similar relationship in the other bed, the purpose herein speci?ed, and means for selec so as to be capable of knitting two interlocked tively operating the transfer needles. ribbed webs, and each of desired needles in at 5. In a circular knitting machine, in combina 75 least one of the sets being of loop transferring formation whereby upon appropriate endwise 4 form in which connection it includes a loop en gaging catch and a loop expanding formation whereby upon appropriate endwise movement of such needle a loop can be engaged, expanded and retained so as to enable it to be entered by an appropriate receiving needle, yarn feeding means for introducing yarns independently to the re been transferred, and cam means for operating such needles in conjunction with said latch open mg means, 9. In a knitting machine, in combination, a plain needle bed, an associated rib needle bed, needles for operation in said beds, the plain and rib needles being arranged ‘in two independently operable sets with one half of each set of needles spective sets of needles, corresponding sets of in alternating relationship in one bed and the cam systems for causing the respective sets of needles to knit, loop transferring mechanism in 10 remainder of each set in similar relationship in the other bed, so as to be capable of knitting two cluding means for imparting the aforesaid end interlocked ribbed webs, yarn feeding means for wise movement to the transfer needles, means introducing yarns independently to the respec for opening the latches of those needles from tive sets of needles, corresponding sets of cm which loops have been transferred, and cam means for operating such needles in conjunction ll systems for causing the respective sets of needles to knit, loop transferring means for producing with said latch opening means. transferred loop effects in at least one of the » 8. In a circular knitting machine, in combi aforesaid webs, and wrap mechanism for pre nation, a cylinder, plain needles in said cylinder, senting embroidery thread to and causing same a dial, rib needles in said dial, the said plain and rib needles being arranged in two independently 20 to be knitted by desired needles. 10. In a knitting machine, in combination, a operable sets wherein the needles of one set plain needle bed, an associated rib needle bed, alternate with the needles of the other set in needles for operation in said beds, the plain and both the cylinder and the dial so that the rib rib needles being arranged in two independently needles are located directly in line with the plain operable sets with one half of each set of needles needles, and each of desired needles in at least in alternating relationship in one bed and the one of the sets being of loop transferring form remainder of each set in similar relationship in in which connection it includes a loop engaging the other bed, so as to be capable of knitting catch and 2' loop expanding formation whereby two interlocked ribbed webs, yarn feeding means upon appropriate endwise movement of such for introducing yarns independently to the re needle a loop can be engaged, expanded and re spective sets of needles, corresponding sets of tained so as to enable it to be entered by an cam systems for causing the respective sets of appropriate receiving needle, yarn feeding means needles to knit, and combined wrap and loop at at least two locations for supplying yarns in transferring mechanisms arranged to present dependently to the respective sets of needles, embroidery thread and transferred loops to de different sets of cams for operating the said sired and the same needles. for the purposes sets of needles and causing them to knit, means for operating desired transfer needles suchwise that knitted loops thereon are transferred to directly opposite needles, means for opening the latches of those needles from which loops have 40 herein speci?ed. EDWIN WILDT. HENRY HAROLD HOLMES. - ALBERT HENRY Wl'DDOWBON.
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