Патент USA US2261386код для вставки
Nov. 4, 1941- R. Kl-:BLusEK ET Ax.'l 2,261,386 _ TUNING INDICATOR SYSTEM Filed Aug. 5, 1939 _ ____ _ __ __ f _ __ ___ _ _ __._ ___œ___ H_ ____ __.__„._, .._, f„.2_2 _ ___o__»__9_____._L_\ ____ ___ __ «4 _. _____ _T_llllll __ __ __ _ _ __ __n __ __ __ ___ ___ __ \__ ____ w _____ _59 _______________ ___ __ __ __ ____ __ ___ x`__ __ ____ ______ __5;_„_ _ ____. __ __3: ___L: ___ i _.___\1 __I___. _________ __ ___Y:_____:ß _______ B ___ __ _ _ _ __ _1_5 _ __ _ Y__ ____ __ _____ ____ __ _ H__ __ __/__ _______ _ __ ___ A____.__ _____,____ _______|_____ R____ 1__l/__ __.__ I _m__ __ _____I ___ _______________ Il__ ___ p____ ____ __ ___ml. _____Q_ ___ __ ___ __ _ __ _ _ _ _ __ ____ __ __ __ U_ __ _ _ _ _ _C ___ __ __S _____ __ ___ ____ HA____:a: _____ ______ _ DN_r0`__ AIKAw__l_ |.__|_J ._ R_ .«_ _ o0 2 R7.YW» __.LV..S n” THBN__,_| _ _ H ao WTFem0Ä.mH”TÈIÉn.lqñhw lnu o E H L__ _ oKß E_ Patented Nov. 4, 1941 » UNITED STATI-:s PATENT y 2,261,386 OFFICE ’ 2,261,386- > TUNING INDICATOR SYSTEM Richard Keblnsek, Hnibrecht Laban, and Hen drikus Bernardus Ulrich, Eindhoven, Nether lands, assignors to N. V. Philips’ Gloeilampen fabrieken, Eindhoven, Netherlands, a corpora tion oi' the Netherlands . Application August s, 1939, sensi No. 283,532 En the Netherlands September 3, 1938 6 Claims. (Cl. 11G-124.1) This invention relates to a wireless receiving . is or are only visible if the main dials `iointly with - set comprising a tuning device having a plurality the associated auxiliary dials appear in front of of main dials for the various wave length ranges. ' the window. This set is characterised in that it comprises for n , l VIn a further favorable form of construction of one or more bands from one or more wave length 5. the wireless receiving set according to the inven ranges particular auxiliary dials which areasso ciated with one or more auxiliary pointers and which are substantially longer than the corre sponding bands on the main dials and through the cooperation of a screen moving relatively in tion the movement of the wave length switch has the eii'ect of moving the device carrying the dials and the frame of the pointers to the desired posi tion. ' In order that the invention may be clearly un- . relation to the tuning device the auxiliary pointer derstood and readily carried into efiect it will or pointers is or are only visible when the main pointer or pointers cooperates or cooperate with a dial containing the bands under consideration. A tuning device of this kind may be used with now be described more fully with reference to the advantage in wireless receiving sets comprising accompanying drawing. ` y ` Figs. l, 2 and 3 show one form of construction of the wireless receiving set according to the in vention and more particularly that part which exhibits the dial, Fig. 1 being a sectional view _ means for the obtainment of the so-called band _taken on the line I-I of Fig. 2, Fig. 2 being a spreading.y Such sets comprise means for en front elevation, and Fig. 3 being an enlarged par larging, so to speak, a given wave-band. If a mainpointer of the set on one of the main dials gg tial view of Fig. 2 showing only the scales and pointers which are viewable through the panel indicates a. given band, an auxiliary pointer in window when the receiver is operated in the the set in cooperation with one of the auxiliary dials permits of effecting this tuning accurately. short-waver range. _ The Wall I of the cabinet has formed in it a As a rule, the band-spreading means will alone be used in the ultra-short wave region. 'When 25 window 2. At the back of the wall I there are two vertical guides 3 ‘on which a frame compris in this latter case tuning is eii’ected in the me dium wave or long wave range, the auxiliary dials y ing bars‘4 'and 5 is adapted to slide by means of and the associated auxiliary pointer or pointers may give rise to confusion. This is avoided in sleeves 6, "I, 8, and 9, said frame carrying a plate Ill which has the various main and auxiliary the set according to the invention by the> screen 30 which is relatively movable in relation to the tuning device so that the auxiliary pointer and the auxiliary dial are only visible when the main pointer cooperates with the dial containing the bands under consideration which bands can be '35 enlarged by means of band spreading means pro dials mounted on it. This frame carries in addi tion a guide II for the auxiliary pointer I2. The frame provided with the plate I0 and the auxil iary pointer I2 can be raised and lowered by ’ means of- a knob 23 whose rod extends through a slot 24 of the cabinet. The guides 3 have in addition mounted on them a further frame'which comprises barsA I3 and I4 and is adapted to slide on the guides 3 b_.v means of sleeves I5 and I6. The bar I3 serves _as a tionary tuning device but preference will gen erally be given to movable arrangement of the '40 guide. for the main pointer 29. 'I'he sleeves I5 and .IS are provided `with an extension 25 and tuning device and to arranging for the non 2l engaging blocks 26 and 28 arranged to be sta transparent parts of the set which surround a tionary in the cabinet. The cooperation of the window in the set to serve as a screening device. extensions 25 and 21 with the blocks 26 and 28 In a favorable embodiment of the set accord- ` ing to the invention the main and auxiliary dials- 45. has the effect of determining the lowest position Y of the frame of the main pointer 29. ‘ are rectilinear and arranged parallel to each The plate' I0 has dials I'I, I8, I9, 20, 2l and other. It is, of course, also possible to form them 22 mounted on it. The dials I1, I8 and'l9 serve into a- curved shape. In order to eiiect tuning for the long-wave, medium-wave and ultra-short as accurately as possible it is preferable, accord ing to the invention, that the auxiliary dialsl 50 wave regions. There is a difliculty in tuning sta tions in the ultra-short-wave range since a com should extend throughout the length of the main paratively great number of stations are included in a. small number of narrow-bands. These bands From a constructional point of view it is simple are indicated in Figs. 2 and 3 by small black to mount the main and auxiliary dials all on a movable device used in common suchas a slide, 55 `blocks on the dial I9. The fact that the set com prises band-spreading means permits of one or a drum, a iilm or the like which is partly visible more of these b’ands being extended over a much through a window in the set, the device or. devices larger region. For this reason the device ac carrying the main and auxiliary pointer lor cording to the invention comprises the auxiliary pointers. being so coupled to the device carrymg vided in the set. It is, of course, possible to cause ' the screen device to move relatively to the sta dials. ' - K the dials that the auxiliary pointer or pointers 00 dials 20, 2| and 22 for the bands 30, 3| and Ma. 2 2,281,380 except that for the short-wave range, an aux In the position of the tuning device shown in iliary pointer adapted to cooperate with said Fig.2onlythedials Hand Ilandthemain pointer 29 are visible through the window 2. additional scales, a panel of the receiver pro vided with an aperture and means so constructed Provision is not made of any supplementary aux iliary devices for these dials.- It however, the range of wave-length is changed to ultra-short and arranged for adjusting the scale >carrying member and the pointers relatively to the panel aperture that when the receiver is -adjusted to receive wave-lengths other than short-waves only the scales corresponding to said wave-lengths wave region and if the knob 23 is raised at the same time, the dials _I1 and Il disappear` from the window 2 and are raised and, as shown in Fig. 3, the ultra-short-wave dial (main dial) il 10 and the main‘pointer are viewable through the and the auxiliary dials 20, 2l and 22 becomel panel aperture, whereas when the receiver is adjusted to receive short-waves, the short-wave visible. Simultaneously, the sleeves 6.` and I of range scale. the additional scales and the main the frame of the plate l0 have raised the sleeves and auxiliary pointers are viewable through the l5 and I6 of the frame of the main pointer 2O to such extent that this main pointer cooperates 13 panel aperture. -5. A tuning indicator system for a radio re with the ultra-short-wave dial Il. Due to the ceiver of the type capable of being' tuned to a displacement of the plate l0 the auxiliary point plurality of wave-length ranges including a er I2 has been raised simultaneously and. as short-wave range and provided with band-spread shown in Fig. 3, it extends in front of the aux mechanism when operated in the last mentioned iliary dials 20, 2| and 22. ,Near the wave band range, comprising a member carrying a plurality 30 to which the pointer 29 points is shown a given of scales each corresponding to one of said ranges range which corresponds with the auxiliary dial and a plurality of additional scales each corre 20. Obviously, this arrangement leads to the ad sponding t0 a predetermined and different por vantage that the auxiliary dials and auxiliary tion of the short-wave range scale. a main point pointer are only visible when tuning is efi'ected er adapted under certain conditions of opera in the ultra-short-wave region. tion of -the receiver to cooperate with the ilrst What we claim is: ' mentioned plurality of scales and under other 1. A tuning indicator for a radio receiver of conditions to cooperate with said scales except the type capable of being tuned to a plurality o! wave-length ranges including _a short-wave 30 that for the short-wave range, an auxiliary pointer operativelyvassociated with the band range, comprising a member having formed spread mechanism and adapted to cooperate thereon a plurality of main‘ scales each corre sponding to one of said ranges and a plurality of with said additional scales,va panel of the receiv- ' er provided with an aperture and means so con 'auxiliary scales each corresponding to only a portion oi.' the- scale of the short-wave range, a 35 structed and _arranged for adjusting the scale main pointer adapted to selectively cooperate with all of the ñrst mentioned plurality of main scales or with said_scales except that of the short wave range, and an auxiliary pointer adapted to cooperate with said auxiliary scales. carrying member and the pointers relatively to the panel aperture that when the receiver is adjusted _to receive wave-lengths other than „ short-waves only the scales corresponding to said 40 wave-lengths;`and the main pointer are viewable 2. A tuning indicator for -a radio receiver of ' the type capable of being tuned to a plurality ot wave-length ranges including a short-wave range, comprising a slidable member carrying a plu >rality of main scales each corresponding to one 45 of said ranges, a plurality of auxiliary scales also . carried by said slidable member and each corre sponding to only a portion of the scale of the sh‘ort-wave range, a main pointer in one position of the slidable member adapted to cooperate with 50 through the -panel aperture,V whereas when the receiver is adjusted to receive short-waves, the short-wave range scale, the additional scales and the main and auxiliary pointers are viewable through the panel aperture. 6. A tuning indicator system for a radio re ceiver of the' type capable of being tuned .to at least a long-wave range and a short-wave range, comprising a member carrying a plurality of par» allelly-arranged scales each corresponding to one of said ranges and a plurality of auxiliary scales each corresponding to a predetermined and.` dii ferent portion of the short-wave range scale, a all of the ilrst mentioned plurality of main scales and in a second position ot said member adapted to cooperate with-said scales except that of the main pointer adapted under certain conditions of short-wave range, and an auxiliary pointer adapted to cooperate with said auxiliary scales. 55 operation of the receiver to cooperate with the long-wave and the short-wave scales and under 3. A tuning> indicator as defined in claim 2 other conditions to cooperate with only said long wherein the receiver is provided with a panel wave scale, an auxiliary pointer adapted to coop having a viewing window, the slidable member erate with said auxiliary scales. a panel of the being positionedbehind said window and adjust able to selectively expose the short-wave scale 60 receiver provided with an aperture and. means so constructed and arranged for adjusting the and the auxiliary scales or the main scales ex scale'carrying member and the pointers relatively clusive of the short-wave scale. to the panel aperture that when the receiver is 4. A tuning indicator system for a radio receiv adjusted to receive long wave-lengths only the er of the type capable of being tuned to a plu scale corresponding to said wave-lengths‘and the rality of wave-length ranges including a short 65 main .pointer Iare viewable through the panel wave range, comprising a member c a aperture, whereas when the receiver is adjusted' plurality of scales each corresponding to one of to re'ceive short-waves, the short-wave range said ranges and a plurality of additional scales scale, the auxiliary scales and the main and aux each corresponding to a predetermined and dif ferent portion of the short-wave- range scale.,a 70 iliary pointers are viewable through the panel main pointer adapted under certain conditions of operation of the receiver to cooperate with the first` mentioned- plurality of scales and under other conditions to cooperate with said scales aperture. RICHARD KEBLUSEK. HUIBRECHT LABAN. HENDRIKUS BERNARDUS ULRICH.