US1294955A

US1294955A - Stop mechanism for phonographs or talking-machines.

Info

Publication number: US1294955A
Application number: US62455811A
Authority: US
Inventors: Charles Schiffl
Original assignee: Thomas A Edison Inc
Current assignee: Thomas A Edison Inc
Publication date: 1919-02-18
Anticipated expiration: 1936-02-18

Description

C. SCi-HFPL.

No? MECHAWSM WR PHQNOGRAPHS on TAU/qm@ MACHINES.

vAmsmmcm mw MAY 2. um

Patented Heh ELS? wm.,

comprises a brake member 13 pivoted, as at 13', to the top of the cabinet and provided near its outer end with a friction piece 14 which is adapted to be forced by the spring 15 into firm frictional engagement with the downturned liange 1 en the turntable or record support 1, and also :comprises a pivoted latch or detent 16 adapted to hold the member 13 out of engagement with the flange l', and an arm 17 adapted to manually set or release the latch or detent 16. The friction piece 14, which may be made of leather, felt, or any other suitable material, is secured to the forwardly' extending arm 18 of the member 13 by the ears 19 which surround and firmly grip the said friction 'piece between them. rlhe spring 15 is secured at its ends, to the pins 20and 21 which are secured to the top ot' the cabinet and to the member 13 respectively. This spring is located to the right of the pivot`13 so as to exert a constant tendency to force the member 13 into en- ,gagement with the ange 1. The detent or latch 16 is mounted on a pivot screw 22 secured to' thetop of the cabinet and is provided on its left hand edge with an upwardly directed Harige or projection 23 adapted to engage a notch 24 in the outer end of the member 13 to hold the said merry ber out of operative position, as' shown in solid lines in. Fig. 2. The forward end of the detent or latch 16 is provided with an upwardly directed ange or projection 25 adapted to be engaged by the finger 2 on the releasing1 member 12; so that movement of said releasing member in a clockwise di,-

. rection will move the detent 16 out of er.H

gagement with the member 13 to release the latter and thereby cause the same to be thrown by the spring 15 into engagement with the iiange 1 to stop the rotation of the turntable. A stop 27 limits the movement of the detent 16 toward the left. ln Fig. 2, the stop mechanism is shown in solid lines in inoperative position, and in dotted lines in operative position.

The arm 17 is pivoted at its 'forward end to a bell crank lever 28 which is pivoted at 29 to the top of the cabinet 4l (see Fig. 1). The outer end of this arm is 'flattened as shown at 30 (see Fig. 2), the flattened portion 30 being provided with an elongaged slot 31 embracing a pin or projection. 32 secured to the lever 13 and projectingfrom the under side thereof. When it is` desired to set the brake mechanism to hold the brake member 13 out of engagement with the flange 1", the lever 25% is rotated in an anticloclwise direction thereby bringing1 the projection 32 into engagement with the outer end of the slot 31 and' moving `the member 13 in an anti-clockwise direction. This movement of the member 13 causes the saine to engage a stop 33 on the detent 1G and to move the latter in a clockwise direction so as to bring the projection. l23 into engagement with the notch 24. The forward end ofthe flattened portion 30 of the moniber 17 is provided with a downturned projection or flange 34C which is adapted to cngage the laterally projecting linger 35 on the detent 16 when the arm 17 is moved forwardly. By rotating the bell crank lever 2S in a clockwise direction, the iange 3.4.- is brought into engagement with thenger 35 to move the projection 23 of the member 16 out of engagement with the notch 24, relative movement between the members 13 and 17 beingpermitted by the slot` 31. lt will thus be seen that the brake mechanism may be either set or released by manually operating the lever 28.

The releasing member 12 is preferably formed of two

segmental members

36 and 37 pivotally connected as at 3S and engaging in a peripheral recess 39 in the sound conveying arm The members 3G and il? are connected at the ends remoto from the pivotal connection 38 by n spring 40, where-- by they are held in frictional engagement with the inner wall of' the recess 35i. The .spring Al0 is made ot' such a strength that the member 12, though movable on the arm 5 by the applicationnoi a slight force, is held in placeby the said spring` sullicicntly securely to release the dctent lt evident that only slight force is necessary to. move the detent out oi engagement with the member 13. il flange -li entends npwardly from the' edge ci' section 37 adjacent the member 36 a short distance inwardly .of the pivotal connection 3S, and a member 42 is rotatably connected with this 'flange by means of a pivot 43. The forward edge of the member l2 is wedge shaped, as shown at lll, so that when the said member is rotated by the linger hold 45, said wedge shaped portion is forced between the

inembcrs

36 and 37 to spread the same apart and thereby loosen the member 12 on the sound conveyin arm 5, is clearly shown in Fig, 3. In or er to prevent rotation of the member 12 by reason. of the frictional engageient between the upper and lower edges of the recess 39 and the said releasing member when it is desired to throw the latter out of operation, the member 37 is provided with a shoulder e6 adapted to be engaged by the arm 4? of bell :1aiilrle\*er f8 which is pivoted, es shown et "l-Q, to the top ol the cabi# net.'A The pivot 119, which is preferably a screw.v can be adjusted to regulate the fricion o 'n the'lever 4:8 to any desired extent; so that the said lever may be held in adjusted position by frictional engagement with its pivot. ln Fig. 2, this lever is shown adjusted' to permit the rotation of the releasing 5 member lo fore, be need render the rel ineinber i2; but by turnin@k tire 13eme in en enti-cloclriviee direction, the erin l? brought into the petali or tbe shoulder .i eo to girevent rotation oil the' releasing lt ie evident the lever i@ may be need to prevent rotation olf the inem ber l2 eren Wlientlie seid member is heldin frictionol engagement with the erin 5 ce eliown in f2; and this lever nitty, thereing member inoperative.. ln order to .liniit tbe rotation oit tbe relenoing inem ir in en enti-clock Wiee direction, the member is provided Wit-le ai elioolcler 50 edepted to engage e upwardly extending portion of bracket 1% releasing inem 3er l tney be adjusted by bend or by iirst moving the .sound convejvingg,F erin evvcy lrorn the ortis of the rec.-

ord support to cause tlie breelret to en ngc the shoulder 50 sind Shift tbe noeinber4 2 in e clockwise' direction on tbe erm 5 and by tlien moving tbe' seid;erniinwerdly to conse tbe projection 25 Aontbe detent lo to bold the member 'l2 stetionerft*Av until the reprodnceris located above the bloe 'et which it is desired to stop the reproduction, ln this operation, tbe stop 2? limite tbe moveinent or tbe detent'lt. lllflien .ne-vv it ie desired to reproduce tbe record or section. ont e record it'or efliicli the Stop meelieniem bee been adjusted, 'tire 'reprodncer is eet et the beginning ot tbe record `groove adjacent the peripheryT of `tbe record end tbe lever 28 is turned. in' en entrclocli '.ie direction to set the brele ineclienisin in e position for perrnittior,r rotation oiv tb: record support. ill/'hen the rre-producer cornes to tliepoint for vvliicli tbe etopfmcehenisin lies been adjusted,

tbe finger 2G or the releeein@ member moves tbe detent loont of engagement with the member 1B and the lspring; l5 forces the letter into engagement with tire flange l to .atop inecliine i lift is evident tliet nieny changers may be mode in the construction described above vvicliont departing' freni tbe spirit or' my i. n vention. "llbe brake mechanism may be inode 'to upon tbe Arefrernor dislr or upon other ble rotatable port of 'the talking im, rhino; end many "e v tiene nre rvitlrin tbe eoope ofi other i nir ivenu claim new end desire to prou .r 1teint or :ne niifed Fit-eter i r e device tbe elle roter rbecribed, the .conibinm'non Witli o. rentable member and e, trnveling member inomible rele-tively to eer-li other, ci .braking ineens, e detent l 'l eonnemed with sind merino for enter ticiilly i incl melting; menne trible member, .seid automatic releasing ineens comprising relatively Inovfible parte and being' provided with mechanism .tor eftecting relative movement of seid parte for rendering the automa-tic releeeingg` :anemiey inoperative, substantially es described.

2. ln e device of the character described, the combination with an roteta-bleniember and n, traveling member movable relatively to eachother, of braking means, o dctent therefor, e member tor releasing or Setting seid detent to control the operation of seid bro-king ineens, ineens connected with said traveling member for entoinotically releasingrr said deten't to render seid 1bralfzin means operetive to stop Ithe rotation or' sind rota-l table member, seid automatic releasing merino comprising relatively movable parte' rendering the automatic releasing means in operative, substantially as described.

3. ln a. defice ci? the character desrcribed, tbe combination with e ond e trevelng member movable, rele-tively to each other, of braking means, a, detent therefor, au 'member for releasing or setting scid detent to control the operation of seid breliing means, and ineens mounted on seid traveling member for automatically releas ing seid detent to render said braking ineens operativo to stop the rotation or, seid rotatable member, seid'releasing meene on said traveling member comprising relatively movofble parte and .beingl provided. with mechanism ltor effecting relative movement olf' seid ports for l.loosening the releasing ineens on seid traveling member and to 'thereby render .the eamo inoperative for relea-sing said detent, substantially es de'- ecribed.

4t. lfn e device of the character described,

the coinbinetion with o rotatable member 'rinde traveling member Vmovable relatively tive to the rotatable member, ert'etentielly es described.

il 'ln Ve device of the character described, tbe conibinetion with e rotatable member ond e, treveling member movable across the Seiner, of broke mechanism, ond ineens friotionnlly secured to said traveling member end adapted positively to operate seid brake nieolieniein to et'op the rotation oi seid roti teble member .when seid traveling member rotatable member iet ill

ee-cli other,

the combination with e roteteble member and. another member movable relatively to' eacir other, oit braking meobenisro? enel adapted to eontrol 'the operetion'oit eeicl bre-king' inecbonie to stop tlie rotet eble member when seid members reecb e predetermined relative position, seid ineens comprising' c device mounted for pivotal movement eboute lined exis only end ed: jinstelble about seid eine e position for rendering tbe braking mechanism operative when. soicl members reach seid preoleterrninecl position, by relfrtiveiy moving," Seial members to suoli predetermined posi-tion, euibetentielly as described.,

l5.. In ey device of the character' described, the combination with e roteteble and another member movable reletively to of braking mechanism, and mea-ns adopted to control the operation oi seid braking mechanism to stop the rotatable member when seid members reecli` e predetermined relative position, seicl mee-ns comprising e device ineontedl for pivotal movement `about e lined :iris only and ed: @bont eoirl :tris to e position for rendering* tbe limiting rneobenisni operative when seid members reach seiol predetermined position? by relatively moving seid members ,to erich preeterrnined position when eer-itl braking ineclieniem is *loopen etive eolrrtentiell*r es described. l

To o device of tbe cborecter described3 etion witli member 4,-. im lx' 51./

on o er member movable relatively' to eocb -c er, oi" braking inecbonisina enel ineens erleptecl to control tbe operetroir oi eeiti brelringr nrefebenieni to etno tbe rotetiolr oi seid roteteble member when. eciol members reocb e relative po siton9 eeicl ineens compris' o e :trictionelly monn'terl device enel e Llei/ice copcreatingr therewith to rencler tbe brelringg' mechanism operative., one ott saliti-elet." corri b; e nemesi niemeer, seid fric mounted device be.f1 ontmoeticelly efineteble by tbe otlier olevice, when in norinel operative relation to its mounting, to e, position. rendcringtrtbe brellihng niecbenissln cperetive when :ie-icl men ers prede ninecl positioin by tir/eff, moving; eeicl members to snob. bre

f vi i l ter-mined. poeitionf, eobetentieny es flescrib l?. ln o tbavice olii tbe ciierecter described, tbe combination with e, roteteble member enel e traveling member movable across 'tbe rotatable ineniber, oiz braking jmecbeniero., encl ineens etlepteci rencler eeirl braking :fneclieniein operative to stoptlie rotatable une member tvben eaiol traveling meniberreeciiee e predeterniinel position, eeicl means coin-- prision; e device monntefl for prvotel move nient about e tilted only onol ,etlinetebie about eetl iris.; to o, position for remi'ering tbe breit i .te when .tieni mechanism operi.

' und o. trevelin r member traveling member ree/oboe seid predetermined position, by moving seid traveling .member inwerdljf to such predetermined deoeribeet the chers-roter described, with e rotatable member member movable ecroes tbe rotatable nieuwer, of braking mechanism, and means adopted to render seid braking mechanism operative to stop Seidl 'rotatable member position sirbstentielly es lo. in e, device of the combination pivotal n1ovestentially as deecribed.

i 19. ln o device of the character described, the combination with e rotatable member ond e traveling; 'member moveble relcltively to scid robot-able member, of braking rlieoheniem and ineens adopted to release seid braking mechanism for stopping the rototeble member when seid members r'eech o predetermined reiotive position, seid releer#- ingI Ineens comprising o, device mounted for pivotal movement about a. .xed exis only and adjustable ebout seid exis to a, position for rele'oeing the braking mechanism when seid members recch seid predetermined position by relatively moving inenrbiire to seid predetermined position.

llo :i device of tbe eberecter cieecriberl, the combination vvitli e rotetoble member, ot' e breite therefor, fr lctent :tor seioi breite, onli ineens adopted when moved in one tiirection to first move solo breite from opere tive position without any resulting move-- :ment of tbe fletent tovvercl operetlvo posti.- tion, oncl to then eect the movement oft seid (intent to operative position 'by ineens; oil tbe breite, substantially es deecribetiu in e device ot" the ebnrecber described, the cornbirnitlon with e. rotatable member, or e brake therefor, :rnd o cletent for saiclbrelre, eoid brake being; movable from operative position, :l predetermined recount Without my iesultinlgg,` movement oit seitlclr-atent, tire broke in inrtber ino-vement trein. eperetive pom when seid traveling member rezrcbeee predetermined position, seid roeene come limi devices being carried by the member movsition by relatively moving said members to such predetermined position, substantially as described.

23. A stop mechanism comprising a brake,

- a detent therefor, and means for causing the brake to exert a force tending to move said detent to operative position when the brake is moved to inoperative position, substantially as' described.

24;. A stop mechanism comprising a brake I and a detent therefor, said detent being movable to operative position by said brake when the latter is moved to inoperative position, substantially as described.

25. In a. machine for reproducin sound, the combination with a rotatable ta le, of a. swinging arm movable over the top of the table, a brake mechanism arranged to engagethe table, and a brake releasing device arranged on the swinging arm for coperatio-n with 'the brake, said brake releasing` device embodying a slidable member adjustahleflaterally of the swinging arm and cooperating with the brake.

26. In a machine for reproducing sound, the combination with a rotatable table, of a swinging arn movable over the top of the table, a brake mechanism arr'anged to engage the tablet and a brake releasing device arranged on the swinging arm for coperation With the brake, said brake releasing device embodying a guide, and a slidable member arranged on the guide and cooperating vvith the brake.

27. n a machine for reproducing sound, the combination with a rotatable table, of a swinging arm movable over the top of the table, a brake mechanism arranged to engage the table, and a brake releasing device arranged on the swinging arm for cooperation With'the brake, said brake releas ing device embodying a curved guide, and a curved slidable member arrenged on the guide and coperating with the brake.

28. A talking machine comprising a braking element and a latching element having complemental engaging members` whereby the braking element is restrained in its off positiom a brake-setting spring attached to said. braking element, means on the braking element for positively alining said engaging members by the retracting movement of the braking element, and a trip-member connected with the latching element and adapted, Whenengaged at the end of the selection, to move said latchieg clement so as to release the braking element and permit 'the latters spring to set the brake.

'29. In a device of thecharecter described,

meeste a rotatable member, a brake for said member biased to operative position and movable to inoperative position, and means for holding said brake in inoperative position, said means being movable to operative position by movement of the brake from operative position, substantially as described.

30. ln a device of the character described, a rotatable record support, a sound conveyer mounted to swing over said support, a brake for said support, means for holding said brake in inoperative position, said means being movable to operative position by movement of the brake from operative position, and means controlled by said sound conveyer in the movement thereof over said support to effect the release of said holding means, substantially as described. f

31. In a device of the character described, a rotatable record support, a lever carrying a brake for said support, and a detent arranged to be moved by said lever to a position for holding the latter in a position i Where the brake is inoperative, substantially as described.

32. In a. device of the character described, the combination with a, rotatable member and another member movable relatively thereto, of braking mechanism comprising a. brake for said rotatable'member and a detent movable by the brake to a position for holding the latter in inoperative position, and means adapted to trip said detent and release `the brake when said members reach a predetermined relative position, said means comprising a frictionally mounted device carried by the member movable relatively to the rotatable member, substantially as described.

n a. device of 'the character described, the combination with a rotatable member, and another member movable relatively thereto, or' braking mechanism, and means adapted to control the operation of said braking mechanism to stop the rotatable member, said means comprising an adjustably mounted device and a device copcrat' ing therewith to render the braking mechanism operative, one of said devices being carried by the member movable relatively to the rotatable member, said adjustably mounted device when in a position in engagement with the other device aft'er said members have been initially set to a predetermined relative position, being adjusted so as to render the braking mechanism operative when said members again reach said predetermined relative position, substantially as described.

34. In a device of the character described, the combination with a rotatable member and another member movable relatively thereto, of a brake for said rotatable member, a detent movable by the brake to a posiweiem bien for homing tbe imiter inV inopembive position, amai si device im tripping Seidl de- 'bent adjustabiy mounted 011 the member movable relativeiy to the @tambie member, Ii said device when in e position in engagement with said detent'abei szii members have been initially set to @i predetermined relative position, being adjusted so as to trip said detenl: and release the brake when said members again beach said predebe# Mi milled reiaiive poeizion, subataiitiediy as deseribeci.

This speciicatifm signed and Wibnessed this 1st day of May, 19H.

CHARLES SCHFFL. i/Vitnesses:

FREDERICK BACHMANN a y i ANNA. R. KLEHM..