US1676392A - Calling device - Google Patents

Description

H. H. IDE

CALLING DEVICE July 10, 1928.

Filed Dec. 18, 192p r110 by the proper 1t Patented July 1Q, 1928, I 157%,39'2} I W T-EDP- TA T E Perms er I- IARRY H IDE, or LA AnGnI LINoIs, essisnoi To KELLOQG SWITCH BOARD Ania SU PI LY COMPANY, F CHICAGO, ILLINOIS, A CORPORATIONDF ,ILLINOIs. CALLING ianvion. I l Application iiled December. 18,1920. 'seri iio; 431,561. 'My'invention relates to" 'calling devices lustrate the ap-plication of niy' invention to" such are used-1n automaticandsemi-ai h'eealhn'g devicef" y v lt0mat c teleph'onesystems-for; controlling ig jliris alsectional' vie'wo'fi the" motor the ai'itoniatic switches which are located at, spring andits'supporting'parts; Y a 5 the central ofiice and are'used for est'ablisl1-* 1 F 1g. 6 1s a disassembled perspectivevieweu stable motor device and itsasso ing connections. between calling and called f hefld] subscribersfand has'to do more particularly i 'p' d v 4 wit-h",tl1e new*ancl' zimproved motor spring a Fig. 7 is a viewsimilar to:Fig.15, but: with v adj tj gme n for a calling device whe v the motor spring tension-mg devicejin its 'dej v v ension maybe given to the pressed position "to permit adjustment of 65 said'moto-r, spring. them'otor spring. p r Calling devices of the art are provided Asmy'inventi n relates particularly to a 1 with motor springs ivhich'are placed under motor spring tensioning device, a detailed -a-;certaintensi'on1 W/Vhen the setting member dBSOIiPtiOIi v0f e O Ii S f the lling of-the'caning device has been advaneed,.the i e ELSillUStUItBCl in t c p ny ng 'sa d'setting member is restoredto normal g l i fl g' Q y Such l by *means' of the said motor spring, and a ip on i y'f a u a d c train of gearing'associated with the calling plet'e understanding of the adjustable motor"- device 'is set in;moti0n, by the return of the device. For amore complete understanding setting member to,v normal','tor operate the of the calling'device,referencemay beihad' 75 impulse mechanism, thereby transmitting ,v to Patent No. 1,501,281, issued July 15,1924. .predeterminednumber of; impulses tothe au- Referring now more in detailto myin tqniati ith' g i- 'Va i g-am th d h vention as illustrated, the calling device as;

e n e n lb'y d -fo f dj gting'ethg. t r soeiated withthe adjustablev motor device. 7 spring of the, calling device to its pro er comprlses a main mountingplate Awhich 89 tension, all .of which 'are somewhat oom h; supports the calling device mechanism; ai eated; and iiece sitate specia'ltools'for opere fingenholdactuati'ng -member B {and "a ating the adjusting means to place thermotor ridgeplate C for supporting'the parts of pii u d p o r t j g' the calling device. 'The' main'shait't 4 eX- I 305* A feature of invention is the provision tendsth'roilgh a Suiab e bea ng sleeve 5 8-1 f a: w nd impro'ye'dadjustable i g cured to the main mounting plate A and a tension'means-whi'chis simplein construe i g Sleeve 6 Which is ecured to the,

tion and in which no special tools are needed ridge plate C in any suitable vmanne said for adjusting the tension of the motor shaft l rotating the said bearings 5- and 6. spring. The'motor spring tensioni'ng d A sleeve 7 is provided which-is of size-to oo 1 vice ofmy'invention'embodies desirable fea-Q V the Shaft Said 1 6 When il'il tures"'a-nd advantages in-a simple, 'eflicient pl r ting against the bearing 5. The" and economical'manner/ These features will finger-hold actuating member B 'is secured be more fully'des'cribed in the ensuing speci-r h fOIWardend of the shaft 4 by means ficationr I p of a screw 8, which screw has screw-thread '95 -f nd a more complete understanding of d ng g n i a sui l pp o fi my invention, reference may lie-had to' th'e' in the'forward end of the main shaft 49 accompanying drawing. in whichI illustrate T e O f d' l 6nd f be ef u y" the' mot-or spring tensioning-"device of my to m a q a p y 'd fi g -v invention, in the several views, operati'vely hold actuating member Bis provided [with 100, associated" with -the calling device; and in an-openingto"conformwith the squared end hi h lug n ia har t g'i th of thesha-ft hand thissquared portionoI" t I eralviews denote li'kei arts, andin which the shaft 4- and opening-in. the finger-hold 1 ,V

I {Fig-L faceview ofi the"callingidevice'; ctuating ine'inber B thus secures the said" M! v gFiggjflEZ f-is 'a 'ear viewof Fi'g.1," showing member 13 against rotation on the] shaft 51 1 5 T i i is i l L Wllllilt i'saolvanced from its normal po n Fig.8 isljan interior 'iew of thc callin'g tion'. :The finger-hold actuating member idevice,showingthe-mechanism of the same; is provided with aplurality of openings or, {Fig 1 is a side view of the calling device finger-holds for the usual advancing put- With parts-broken away to more clearly il-l poses, and a stationary finger-stop 9,1sec u'redi: Q

to the mounting plate A by means of the screws 10, is provided so that when the fin ger-hold actuating member B is advanced in a clockwise direction, the advancing finger of the operator engages the stationary stop 9 and arrests further movement of the actuating member 13.

The motor spring tQDSlOI11I1g,Cl8V1C6 MS COlIlPlfiSQS a spiralmotor spring 11 which is coiled ahout bearing and the sleeve 37, and the-end 12 01 the motor spring' ll isinserted into, opening 13 in the main mounting plate A; A disc 73 is provided having aplurality I u V a y l or notches l l cutin, its periphery 10. it is also provided with a centrally located orifice 16 or a size to permit the said disc .73 to he slipped over the sleeve '7 and permit its rotation about thesleeve for purposes as Wlll piescntlyhe descr bed. -20

sha'i't il and is held in place bymeans of ascrew 22, which screw has screw-threaded engagement with a suitable tapped orifice in the end of the shaft- 4; r I j V The motorspring .11 rests between the race or the 'main nounting plate A, and the disc i 7 3, and its longitud nal tension is suchthat ,it torcesthe said disc 7 3 against the bottom motor spi'ingl'l until the notch 14 in the pe-' riphery 15 0f" the disc 7 3 in which the angurace 23' of the'detent 19. The detentis provided with an angular extension 2 1 which is ot a size to permit it to rest in one of a plurality ofnotches 1a in the periphery 15 'ot' th'edisc To adjust the motor spring 11'to its proper torsional tension, the disc I 73 grasped by the fingers of the person ad-' asting the said spring 11 and forced downward against the longitudinal tensionot the lar extension 24 of the detent 19 rested clears the same as clearly illustrated in Fig.

Now when the disc 73 is in this aosition. and F 1 5,

as it is loosely mounted upon the sleeve 7, the

said disc 73 may be rotated in a counter:

clockwise direction by referring to Fig' 2, andas the end 1r of the motor spring 11 is inserted in the orifice 18 in the disc 73,,this

counter-clockwise rotation of the disc 73 winds up the motor spring 11 to give it more torsional tension. Now, when a notch 1 1 in the disc 73 registers with the angular entenj sion 2 1 of the detent"19, the downivardpres sure-upon the disc 73 may be released and the now moved upward due to th'e l,on'-' g V (l tension or the spring 11, allowing theangul'arextension 24- ot the detent 19 to enter'a. notch letin the disc 73. The face 25' t 1e disc 73 rests against thebottoni race 23 ot' the detent 19", which face 23 actsas a stop for the said disc 73' 'when forced upward by the longitudinaltension of the motor spring 11. To lessen the tension ot the motor spring 11 the disc 73 is forceddowir va-rth-as b'eitofre described, against the longi tudinal tcnsion or the spring- 11, depressing the same until the angular extension 24 of the detent 19 clears the notches 14 in the said drama This permits the disc 73 to be rotated in a clockwise direction, by reterring to r Fig, 2, and when a notch 14 or the disc 7 3 registers with the angular extension 2t of the detent 19 the downward pressure released rrom the said disc 73 and the longit-udinal tension of the motor spring ll forces the disc upward until the extension 24: again enters a particular notch'ls in the disc 73, thus holding themotor spring to its adjusted torsional tension. 7 v v r The detent 19 when the calling device is at normal, engages an insulating butter located on, one of a pair of shunt springs'as illus-: trated "in Figure 2 of the accompanying drawing. The two middle contact springs are normally held apart by the engagement of the detent 19 and the butter; V] hen the shart is rotated the detent 19; rotates with it and disengages the buffer and allows, the contact springs to engage each other to form a shunt circuit to short circuit the subs'crib-' apparatus while the impulses'are being sent. F or a fuller description ofthc apparatus reference may be hadto Patent Number 1,501,281 issued to me July l o, 1924? v i Mounted upon the nainshafteris a gear wheel "30, which gear wheel 30 7in turn meshes with a pinion 31, which'pinion 31 is integrally formed with the shafti32, the said" shaft 32 also carrying the governor mcha nism G or the calling device. The shaft 1 32 also carries a gear wheel 33, which meshes witha pinion 34 integrally formed upon'the' shaft 35, which shaft 35 also carries the" cam member 36 for opening and closing the impulse springs I of the ,calling device: This train I of gearingthus outlined is connected to the main sha'tt & to the governor mechanisn 'G- a'nd impulse mech anisni I, the said governor G permit-f ting the return movement or the finger-hold actuating member B at a predetermined speed through the agency of v the motor spring 11. Now, when the finger-hold ac tuati'ngmember B is rotated in a clockwise direction to 'se't the calling device to permit a certain number of"iinpulses the gear wheel13O "and the float-ingwratchet" 46 which are loosely-mounted upon; the main shaft 1,;I'111ai11' stationary while th'e shafts and the dog 131 are operated ina-fclocliwise 125, direction. so that tl1e :arms37,' 38an'd 39 ride over the wings 40 of the floating ratchet 16; until the arms 37 and 38rest'in' the desired wing 100f the, floating ratcliet'dti. Due to 7' the tac t'that the detent 19- is secured t5 the 136' shaft- 4: by ineans of its squared opening 20 "and screw 22, the said detent19 is alsocarried with the shaft- 4., and as the angular extension 24 engage's'a notch 14 in the disc- 73, the disc 7 3x-is' alsofcarried with the saidmain shaft 4, and as the end 17 "of the motor spring 11 rests in the orifice 1801? the said-disc 78, it brings about the winding up of the motor spring 11 upon the forward. rotation of the finger-hold actuating member B. "Upon the return movement of "the finger-hold actuating member. 13, the shaft .4 and dog 131, all of; which aresecured to the shaft 4, also return therewith, as th'e arms 37 and 38 of the dog131nowengage the desired wing 40 0f 'theratchet 46,

Do'wnwardly extending arms 41 and 4201 the ratchet 46 extend intoithe'orifices-td and 44c in'the gear wheel and the gear wheel 30 is thus rotated-therewith, and through the mediumjoftheztrain of'ge'aring the motion is transmitted to the governor shaft 33"and the" camactu'ating shaft to,

transmit a group of impulses. I

fWhile I have illustrated anddescribed my invention operating in connection with a certain type of automatic calling device, I do not wish to belimited to the same, as my invention maybe adapted to cooperate in structure as shown, but aim to within the spirit andscope of the telephone systems, comprising a rotary.

shaft, a finger hold device to rotate said shaft, a coil spring to rotate said shaft when released and transmit the impulses, said spring having an unad ustable connection with a memberof said device, a second member of said device connected tosaid spring and rotatable by hand with respect to said shaft, to adjust the'torsion of said spring, apparatus including a radially extending detent fixed to the shaft,,and means onsaid second member to be engaged thereby to hold said spring under any of its adjustable torsions with respect to the shaft, and contact springs controlled by said de-.

tent.

. 2. In an impulse device;- for automatic telephone systems, the combination with a rotary shaft to transmit the impulses, of a spring to drive said shaft, two members engaging one another one fast with the shaft .and adapted to control a pair of contact springs the other fast with the spring, said member fast with said spring being adapted tain said as 7 come.

vto-bev disengaged by hand. from said member.

fast. @withthe. shaft and rotated; to adjust the torsion of saidspring and to again me gage said member, fast with-the'shaft-to maintain. achanged torsion of the spring on the shaft, 1 1 i a The combination with l and asupport with a bearin'g therefor, of, a

coil springabout said shaft having oneiend in fixedf'relation to said support and=the= other enda'djustably fixed tosaidshaf-tby; j i

means comprisinga disk rotatableby hand. 1'

with respect to said shaft, said disk pro. vided with peripheral means for engagement by a detent fixed with .respect'tosaid shaft, said meansv and said detent serving to adjust and maintain any adjustment madeofthe torsion of said spring on the shaft, and con-R tact springs i'controlledv by said' detent." 4. Inan impulsesending device the cornbination-ofa rotatable'shaft, acoil spring 'for rotating said shaft back to, a normal point, a detent fixed to said shaft havingla' depending portion,'a pair of contact springs controlled. by said detent, a member frotatable with relation to said-shaft-and'connect-v ed to one end of said. spring, said member adapted tobe rotarily adjustedibyhand to increase ordecrease; the torsional fo-rceof said spring, and means comprlsedin said member for operative engagement by the depending portion ofsaid detent to maintensionsfi j I 5. In an inipulse'sending device the combinatlon of a rotary shaft and a' support spring under anyof its adjustable.

therefor a Spring rotate said shaft hav-.

ing one end fast to the support, and the other end adj ustably connected tothe shaft,

the connecting means comprising a part fixed 'withthe shaft having a depending'portion and a part fixed with the spring,'ha v-,

'ing a plurality ofperipheral notches adaptcd to be engaged by said depending portion, said parts extending radially from the shaft to engage one another andadapted .to be pressed apart by hand todisengage to allow thetorsion of the "spring to the shaft to be adjusted, and the parts re-engaged to allow said depending portion to enter one of said springinits adjustedtorsion, and a pair of contact springs controlled by fixedto the shaft.

6. An impulse transmitter for automatic telephone systems comprisinga rotarysha'ft. means for rotating said shaft, a motor spring for saidflshaft for rotating the samewhen means are released to restore said shaft, a fixed connection for one'enol of said spring with a member of said impulse transmitter', a disk slidably. and rotatably sup peripheral notches to. maintain the said the saidpart ported on said shaft and connected to the.

other end of said spring and rotatable by hand to adjust the torsion of said motor spring, a detent fixed to said shaft control llng a pair of contaot springs and engaging means on said disk including peripheral notches adaptedlto be engaged by a depending portionlof said detent to hold said motor spring in an adjusted torsion.

ofsaid impulse transmitter, a disk slidably and rotatably supported on said shaft and connected to the other end of said-motor spring, a detent fixed to said shaft, a pair of contact springs controlled-by said dctent engaging means on said disk comprising peripheral notches adapted to be engaged'by a depending portion of said detent and held in this engaging position by means of the longitudinal tension of saidmotor spring, said disk being adapted to be moved longitudinally in relation to' said shaft by'hand to permit the torsion of the spring to be adjusted by rotating the disk and to permit said disk to be moved to'again be engaged by said-detent to maintain the adjustedtorsion of said motor spring.

8. In'an impulse transmitter of the class described comprising a rotary shaft, a motor spring fonrotating said shaft having one end fixed to a member of said impulse trans-f said shaft forming the connecting means between said. spring and shaft, said disk-be; ing held normally in engagement With said detent under longitudinal tension of said spring to hold said spring in an adjusted torsion, said disk being adapted to be disengaged from said detent by downward pressure by hand against the. longitudinal pressure of said spring and rotated independently of said shaft to permit the torsion of said spring to be increased corrodecreased, said longitudinal tension of said springv again-forcing said disk into ,enga'gement With said detentlwhenthe desired. ad-

justnient of said spring is obtained'to permit said detent .to hold said spring in its adjusted torsion and apair of contact springs controlled by said detent.- 1

Signed by me atChicago, in the county of Cook and State of Illinois, of December, 1920.

HARR a; inn."

this 16th day

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