US1437959A - Graphophone stop mechanism - Google Patents

Description

., (1 fly, I

C. C. BROOKS AND E. 0. KLEMM.

GRAPHOPHONE STOP MECHANISM. APPLICATION FILED JAN. 23, 1922.

1,437,959, I Patented Dec. 5, 1922,.

4 SHEETSSHEET l.

C. C. BROOKS AND E. 0. KLEMM.

GRAPHOPHONE STOP MECHANISM.

APPLlCATlON FILED JAN. 23. 1922.

1,437,959; Patentd Dec.'5,1922.

4 SHEETS-SHEET 2- j/vrf/vra/es 6'. Brooks v2 Trek/vim 'C. C. BROOKS AND E. O. KLEMM.

GRAPHOPHONE STOP MECHANISM. APPLICATION FILED JAN- 23. 1922.

Patentd Dec. 5,1922..

4 SHEETSSHEET 3.

C. C BROOKS AND E. 0. KLEMM.

GRAPHOPHONE STOP MECH'A-NISM. APPLICATION FYXLED JAN. 23, 1922. 1 431959; Patented Dec. 5, 1922.

4 SHEETS-SHEET 4.

Y C C. Email s W/T/VEES Eflflemiw etented Dec." 5, i922.

cLIrro-an-c. BaooKs aim ED IN jo. KLEMM, onfrnuro v, Mrcmean, assreivoas- 'ro KLEMM MANUFACTURING'COMPANY,.OF FENTON,.MIOHIGA1\T. I f,

, GRATE HOP HONE STOP MECHANISM.

Original application filed March 15, 1918, Seria1 No. 222,636. Divided. and this 'app licatio n filed .lanuary es,1e22."'seria1no.531,252.

T 0 all whom it may concern: I

Be it known that we, nirronn C. Bnooirs' and E WIN O. KLEMM, citizens of the United States, residin at Fenton, in the county of Genesee and gtate of Michigan, have invented certain new and useful Improvements in GraphophoneStop lviechanism, of which the following is a specification.

This invention is a division of our pending application for patent, Serial #222,636, filed March 15, 1918, and described as disclosing certain automatic'stopping and certain combined automatic stopping and repeating mechanisms for talking, machines. The improvements set forth hereinafter, comprise primarily the stopping mechanism features of the machine ot'our previous ap plication.

with, and preferably by the tone arm and reproducer, said tripping mechanism controlling the operation of a brake which constitutes the stopping device for the turntable of the talking machine. i

A primary object of this invention has been to produce a type of trippingand con trolling mechanisms for the stop orbrake device, which eliminates the placing of any load upon the tone arm and reproducer incident to thetripping operation, such a loadhaving the tendency of course to retard the movementofthe tonearm andrepr-oducer creating extra friction and wear of the reproducing stylus upon the sound grooves of the record, Our present me'cha nism does not produ'ceany special increase of friction between the reproduce-r and 'the record, and the matter of eliminating wear or strain upon the sound grooves is of special importance in the art, being conducive to the reproductionof sound of thehig'hest purity of tone, int-lie operation of the talking machine. H

Somewhat more specifically stated, the tripping mechanism employed by us is utilized for tripping into action certain moving means which are operated by a motor driven part of the machine, and said part performs the work of tripping the brake or-stop from a position in which" it is held released or. inactive, to cause the'bralre to beapplied to a suitable part of thednachine in such a manner as to'stop the rotation of the turntable for the 'usualpurpose of discontinu- This invention involves the use of certain tripp ng mechanism operable ing sound reproduction. This invention also involves certain disabling devices for throw ing out of action the automatic tripping features for our stopping mechanism enabling the stop or brake to be operated manually in what is the customary operation of manual stops. Y lnjt-he accompanying drawings! Figure lis a perspectivevi'ew of 'automatic stopping and repeating mechanisms constructed according to tlie" inventi n 'hereof, the rotating'platform or'table and record thereon being broken away to 'show parts located therebeneath and certain portions of the base being brokenawayalso for the same purpose;

FiguresQ to'6 are fragmentary plan views showing various positions of t heldriver, con

nector, tone arm, elevating and tripping with the machine at rest and ending with the machine in the act of reproduction;

members in thecy'cle'oi" operation beginning Figure 7 is a sectional view taken approxi- I mately on the 1i11 e:77 of Figure '5'; Figure 8 is aview of the'connections'intermediate the locking and detent control device and the "operation predeterminin'g device, the former being "shown 'partly' in section Figure 9 is a perspective view of the lock ing and detentdevice for the"acljustable"trip showing clearly the lifting plate and its formation with'three inclinedfplanes;

Figure .10 is a detail: perspective View of I the" connector or lirikf 1 Throughout the following specification,

and on the several; figures of the drawings, llke referencecharacters refer to sim lar p f, y

In the drawings, A denotes thejbase on" which are mounted the motor, record -table, and reproducer' arrn parts, after th reon:

ventional manner. 'This' base may'constr tute the top of the cabinet 'orthe like, "such not being material. to the invention. The

motor parts are not shown, it suflicing to statethat they are of usual form and inf clude the centrifugal governor shown; at B in Figures '1 and 8, and are adapted to drive the spindle C which carries the record" table D. The tone'arm E is" connected'by a'universal joint with the'base for which i I purpose a socket I is securedtofth base 1 and receives the ball or lowermost portion of the arm in such a way as to afford free upward and lateral movement of said arm. The tone arm E and its sound box F with the reproducing stylus of the latter constitute the reproducer means of the talk ing machine and will be generally referred to as such hereinafter.

Driver and rcproduccr arm actuator.

Suitably geared. with the motor, not shown, so as to be driven thereby, isthe driver 2 in the form of disk having projections 3 on its upper surface. A connector e in the form of a link has a hook 5 atone end adapted to move into the path of the projections 3 and when engaged by a projection to be pulled lon itudinally by the driver 2. At its other end the link a has a downwardly bent projection 6 engaging in an opening 7 of an actuator G shown best in Figure 9, and possessing actuating functions respecting the link 4, the reproducer E and a trip member 8 carried by said reproducer.

The actuator G is comprised of a plate 9, see Figure 9, the upper portion of which is bent outwardly to provide an actuating cam 10 and a detent flange 11 between which parts is formed a notch 12. Owing to the provision of the notch '12 the actuator G in its relation to the trip 8 forms 'a locking member for the trip under certain conditions as will appear hereinafter. The plate 9 is rigidly secured to a shaft 13 so as to rock with the latter-and the shaft 13 is mounted in suitable bearings in a U-shaped bracket 14 attached to the under side of the base A, see Figure 7. It will be evident that if the connector 1 is engaged at its hook 5 with the driver 2 the latter is adaptedto pull upon the actuator or locking member G and rock the shaft 13.

The actuator-G as seen best in Figures 7 and 9 has secured to it by a bolt 15, a lifting member 16 in the form of a plate which is bent to form three inclined planes or surfaces 16, 16 and 16.

Trip dem'ce.

On the pivoted portion of the arm E is mounted the trip member 8 previously mentioned, the same having a friction ring 17 embracing the lower portion of the men ber E adjacent to the socket member 1. The trip member 8 has a depending vertical. lifting arm 8, the lower extremity of which is rounded and arranged to engage normally with the inclined plane of the member L0 16. By such. engagement it becomes evident that a rocking of the shaft 13 and 'actu ator Gr thereby rocking the plate 16, will. result in a risino movement of the plane 16 aforesaid, thereoy correspondingly raising the arm-8 of the trip member 8. The memher 8 being securely fastened to-the' arm E,

ireferably by setting of the ring portion 17 'n a groove of the member 8, will by the aforesaid action lift the arm E vertically, elevating the stylus thereof from the rec- 0rd. If the movement of the actuator G is only sufficient to cause sliding; of the plane or surface 16 in contact with the arm 8 until the parts assume the position in Figure 2, the reproducer E will simply be maintained in an elevated position. If the movement is slightly greater so that the lower end of the arm 8 passes onto the inclined plane 16 it is evident that the army will slide down the plane or surface 16 after the manner shown in Figure 5, resulting in carrying the reproduce outwards by a lateral swinging movement.

It is notable that the trip member 8 is susceptible of rotative movement relative to the reproducer E through the friction connection between the ring 17 and the part E, said ring; being virtually a continuation of the member 8. The purpose of this will be set forth hereinafter.

Reproduction point controller.

This controller, designated 18 in Figure 1, is merely an arm formed with a lateral pointer or indicator 19 at its free outer end. At its inner end the controller 18 is curved to extend about two thirds the distance around the socket member 1, as shown at 18,

and the curved portion is seated in agroove of said socket member. Said curved portion 18 sufiiciently engages the socket member 1 frictionally that tie controller 18 will be retained at any fixed adjustment obtained by manipulating said controller freely with the hand. The extremity of the curved portion 18 terminating at the reproducer E is upturned to form a stop extension 20 and on said extension is adapted to be carried an auxiliary stop 21 in the form of a removable head. A stop member 22 preferably encircled by a rubber buffer piece, projects from the pivoted portion of the reproducer E, is rigid therewith and is adapted to co-act with the parts 20' and 21 under conditions hereinafter stated.

Operation predetcrmining mechanism.

As seen in Figures 1 and 8, there coopcrates with the disk 23 of the governor B a brake shoe 24 carried by 2. lever 25. A. spring 26 tends to pull the end 25 of the lever 25 toward the toothed edge of con trolling wheel 2?. The wheel 27 has ular teeth and notches on its periphery and a special deep notch 28 adapted to be entered by the end 25, of the lever 25. When the portion 25 is in the notch 28 the'lever 25 will be adjusted so that the shoe 2 1 may contact with the disk 23 and stop the motor of the machine by preventing rotation of the governor B. it is therefore clear that by a simple turning movement of the wheel 2. to disengagethe end 25' of the lever 25 from'thenotch 28 an ad ust ment of the lever 25 may belhad rendering its brake shoe 24 ineffe( :tive and permitting free operation-0f the governor B, wherefore the motor of the machine may operate to table D. F or adjusting the wheel ,a. spindle 29 is connected therewith. and is mounted in a Suitable bearing in the base A, said spindle having the knurled-knob 30 at its upper end for rotation purposes and the knob having associated therewith,

a pointer 31, adapted; to bemoved so as to point to one of various indicia upon a plate 32 attached tothe upper surface of the base A. T he said indiciaa preferably cont prises the, word Stop, the word Continuous and numbers running from 1 to 8 inclusive, but we are not to be limited to this special range of numbering, whichl.correspends with the number of teeth primarily as provided upon the wheel 27. When the wheel 27is turned to the left of the position of Figure 8 the notch 28 is opposite the operating projection 34 at the outer end I ofthe actuating bar 85, the opposite end of which bar has a depending arm 36 n the path of an upwardly extending arm 37 on the shaft 13. The bar 35 is spring retracted, by a spring 38, and its projection 34 is adapted to engage the teeth of and turn the wheel 27 excepting only when the notch 28 is opposite said projection. The

bar 35 is of course actuated each time a rocking movement is imparted to the shaft 13 and its functlon 1S to impart an morement of movement tothe wheel 27 as an 1ncident to a reproduction traversing 'movement of the reproducer E. The bar35 is incapacitated to perform. its function when the notch 28 is oppositevthe'projection 34. this resulting in a, continuous operation of the motor and record reproductions by way of repetition ope "ations, as will -hemore clearly apparent onreference to the afore-.

going, description of apomplete cycle of action of our mechanism for stopping and repeating purposes.

the under side of the base A. Gravitation outwarch and the spring 38'acting on the bar 35, tend to rock the actuator G out.-

- wards and downwards to engage notch 12.

or the outer edge of 11 with the trip: part Mscellrmwous features.

A keeper 39; see Figure 1, is'fastened to the upper surface of the base A and extends over the link connector 4 so as to prevent,

unauthorized lateral shifting of said con-.

nector. Associated with the end of. the" link 4 having the hook 5 is a small knockoff lever 4Oag1d a spring. 4I'conneeted to said engaged.

permit the motor to turn the record.

' of movement 'ofjthe studs action brake. is obtained.

Thebar 35 is mounted to slide in suitable brackets 39 secured to.

lever .tends to pulltlie lever in one direction laterally; the p u llbeingutilized at I predetermined time in the cycle of operationto disengage the hook5 from the stud or projection 8 with which it may he inter-5.;

Still another spring 4-2 is at tached to the base A near one end of the keeper 99 and is arranged so that T atla H certain portion of the movement of thelinkf I 4 said spring is pressed against and placed under abnormalytension so that at 'alater portion of the movement of the link 't this spring will co -act to' carrythe link-to its inoperative position depicted indotted lines v.

in Figure 6, at which time the driver 2 freely operates and its studs escapegthe hook 5. In other words, under'-the conditions stated the hook is out of the path l The-cooperation between the brake shoe 24 andthe disk 23 of the governor 'Bf'lS The "reason for somewhat peculiar in .thatga very quick this is that when the governor B is in" operation the centrifugal force of its balls acts to curve the sprmgs'supportmg them in the customary way The slightest con-' I tact,- the-refore, of the brake shoe 24 with I the disk 23 results in immediateretardation. of the turning of the disk whereby the balls approach each other" and the straighteningforce of the springs'supporting the" balls pushesthe disk instantly forwards intothe desired positive coaction with the brake shoe 24.

t-rol device H forthe governor B is provided whereby to vary thespeed of the 'niotor in playing different selections on the graphophone, this ilCtlOIl being well known and not forming any feature of this invention is-not described in detail. 'A pin 49 H 1"00 -As seen in Figure 1, a conventional con extends up from the base intermediate-1 the ends of the link 4 and co-actsiwith-an 1 angular indentation 4 of said link by; havthe'link as seen best'inFigurelfii." The pin 49 limits the-lateral play'of the; link 4,: in;'.,'-" v I one direction.

ing. sort of ca mming ajction' in respect-to; v

, r v v 2 1 E15 Complete cycle of opemfiwn ofthc vn rmltme.

matic operation of our invention.

The driver ,2 is of course stationary at this time and as a "result ofthe stated adjustij ment f; the" pl e 6 the ow r and 1f th trip arm 8 bowl on caused to ride up tie inclined plate 1b and has stopped just short the plane 16*. Such positioning of the parts has therefore resulted in raising the tone nrm or reproducer E vertically and correspo ding elevation of the reproducing stylus respect to the table D and a record which may have been thereon; By being stopped in the uplifted position the reproducer E does not interfere in any way with the ready placing in position on the table D of a fresh record and the removal of a played record.

Startingwith thepositions of the parts or" Figure 2. the? fore, as the beginning of a cycle of operation, the first thing required'of the operator after placing the record on the table D is the simple grasping or the reproducer and movement of the latter lettwar'ds as the parts areviewed in Figures 1 and 2. The result of the leftward movement depicted in A are 3 which shows a the trip 8 as the arm 8 01 having en agedthe cam 10 whereby to im part addi' onal rocking movement of the actuator G- away from the soclzet member 1. The said rocking movement of the actuator G imparts longitudinal movement in the same directions to the link 4. until the hook 5 is moved sutliciently to enable the knockotl lever 40 to shift the link 41- and disenthe hook from the previously engaged stud. 8 as shown in Figure 3. The operator still grasping the reproducer E moves the latter rightwards as soon as the cam actuation previously setforth is effected and the result of the rightward movement is to bring the parts tothe positions of Figure Tn other words, the rightward movement relieves the cam 10 of the pressure of the arm 8 and since the linker. has been disengaged from the stud 3 the actuator G gravitates toward'the socket member 1 effecting interlocking of the, arm 8 in the notch 12. The operator practically as a continuation or of said rightward movement of the reproducer it deposits the stylus of the latter upon the portion oi the recordat which he desires the reproduction to stop or from which he desires repetition of operation to commencev If we assume that a complete reproduction of the record is desired, as is treque tly the case, the reproducing stylus will slowly be de osited. on the innermost groove of the record. point however. that at whatever position the said reproducer takes relatively to the record, the trip arm 8 correspondingly positioned relatively to the notch 12, being interlocked with the notch, such that said arm ,8" will be opposite to and enter the notch when at a later stage of the cycle the reproducer reaches its now predetermined stopping position.

The next action for the operator is to Ft is notable at this.

laziness grasp the indicator 18 and move the same so that the pointer 19 thereof assumes a position above the portion of the record at which the reproduction is desired to commence. Usually such portion is at the beg .nning of the record its outermost groove, but the adjustability of the member 18 permits Oi selecting any commencement point desired.

The final action on the part of the operator is to actuate the operation predetermining device, by merely turning the knob or knurled handle 30 to set the pointer 31 properlyin relation to the indicating plate 32. If the pointer is moved opposite to the indication 3 the machine will stand adjusted for three reproductions of the record. The moment the handle 30 is turned in the manner stated the wheel 27 is correspondingly turned to disengage the brake shoe 24 from the disk 23 of the governor B and the parts begin to operate according to the movements depicted in Figure 5. That is to say, when the adjustment oi the parts of Figure l was made the reproducer was in operative contact with the record and since the handle 30 was set the brake being released the driver 2 starts to operate and one of its studs 8 engages the hook 5 oi the link 4 thereby pulling upon the link and rocking the actuator or looking member G towards the driver. The rocking causes the lower end of the trip arm A to slide onto the inclined plane 16 The weight of the reproducer E causes sliding of the lower end of the arm 8 down the inclined plane 16', thereby bringing the reproducer trip 8 is now in light contact with the detent flange 11 of the actuator G holding said actuator in a position in which it is slightly rocked toward the driver. Oil course the turning of the driver relieves the pull on the link 4- and the spring 42 at a proper time shifts the link 4 slightly to the left to the position in dotted lines of Figure 6, enabling the driver studs 3 to rotate without engaging the hook 5. It may be noted that when the link 4- was pulled upon'at the time of the action depicted in Figure 5, a rocking of the shaft 18 was produced causing the arm 37 of said shaft to engage the adjacent portion 36 Oil the bar 35, imparting longitudinal movement to said bar and causing the projection 34: ofthe latter to engage one of the teeth of the wheel27. An increment of movement is thus imparted to said wheel to turn the same to bring the pointer 31 from a position opposite the indicating numeral 3 ofthe plate 32 to a position opposite the indicating numeral 2.

' The reproducer, according to thefposition shown in Figure '6, moves steadily toward the center of the record and owing to the frictional connection of'the trip 8 therewith moves the trip correspondingly. When the reproducingstylus reaches the point of discontinuance of reproduction the arm 8 of the trip 8 will be opposite to and enter the notch 12 of the actuator or looking member G. The moment the entrance is effected the parts take'the position ofFigure at, bringing the hook 5 of the link 4 again in the path of the studs 3, whereupon the driver 2 is again effective to cause repeat action of therepro ducer. TlllS repeat action 1s merely incident to the parts going through the operations depicted in Figures 5 and 6 again, causing the pointer 31 to move-from a point opposite the numeral 2 of the plate 32 to a point'opposite the numeral 1. The cycle described then again proceeds-and after the second reproduction a third follows after" the same manner.

On the completion of the third reproduction the arm 8 enters the notch 12, as shown in Figure 4E, and the link 4 pulls upon the actuator or locking member Gto bring the parts to the position shown in Figure 2'. Said pull and rocking movement of the actuator G causes the pointer 31'to move with the wheel 27 until the pointer is opposite the indicia .Stop on the plate 32. Just as the pointer reaches such position the lower end of the arm has reached'the position ofFigure 2 traveling up the inclined plane 16 ,and

the end 25 of the brake lever 25 has entered the notch 28 of the wheel 27, causing stoppage of the'motor and the driver The parts have therefore performed three'con plete cycles of operation as predetermined by the operation controlling device and the machine is stopped ready for removal of the record and the placing in position of a new record. As thus stopped the reproducer is of course uplifted. I

Of course when the handle 30 is turned opposite the indicia Continuous on the plate the notch 28 is opposite the projection 34:

fected.

8 and reproducer would move together should the reproducer be shifted as is unlikely. The purpose in" giving to the reproducer the initial leftward movement as has been heretofore set forth is to enable the trip 8 to be interlocked'with the actuator. v

'G and held stationary" during the time-the operator manipulates the reproducer to set the same to the reproductlon 'dISCOIllZlliUELIlCQ point. An additionalpurpose of said action is to effect the release of the actuator so that it will drop, so to speakytoward" the socketmember 1, lowering the lifting plane 1? sufficiently to permit the stylus of the sound box F to contact with the record.

Whether he moves it-in opposite directions in obtaining a nicety of-a'djustment does not make any difference for the arm 8"- re-' mains stationary, msurmg that 1t will always he in the notch 12 when the required stopping adjustment of the .part E is ef- The plane 16 might be dispensed with but has an advantage in that should the effect be desired the reproducer when initially moved to the left maybe released from the handand the lower endof the arm 8 will restupon the plane 16.as seen in Figure 3. The inclination of the plane is such that the reproducer will not accidentally" swing laterallytas'it might do if left as shown in Figure 2?. When moving the graphophone from place to place the foregoing adjustment of'Figure 3 is useful, and renders in no way 'unhandy, the preliminary leftward shifting ofthe reproducerto cause coaction of the arm 8 and cam 10.

The whole cycle of operation summarized,

therefore, consists in" preliminarily gr'asp-.

'ing the reproducer and carrying the same leftwards to disconnect the'link' l "from the driver'and a continuous but reverse movearm'S in the notch 12, and still additional but continuous movement of the reproducer to deposit its stylus upon the'proper point on the record. Next the controller 18 is set, andfinally the knob 30 turned to start the machine; Where the record isfof the same size as the-previous oneplayed and the commencement point of reproduction is unchanged, the manipulation of" the con-' troller 18 is not required.

our machine in orderto obtain one original While we have described the operation'of ment of the reproducer to interlock the trip,

and two repeated reproductions ofthe re 1 cord on the machine, it is obviousthat the repeat mechanism may never be used, In other words,the achustment of the pointer 31 of the predeterminingdevice to bring it opposite the indication 1: by turning the knob 30,. will cause the reprodu er'to make one reproduction of the record'and stop automatically in an upraised position, the stop mechanism or. brake being-of course thereon the indicia actuated by the motor driven part consisting of the driver 2, and the load of operating said brake being in no way placed upon the tone arm and reproducer so as to create undue friction between the stylus oi" the reproducer and the record. If desired on starting the machine by releasing the brake from the governor disk, the operator may pick up the tone arm and carry it to the starting point on the record by hand. Under some conditions the automatic stopping operation described above may be eliminated and the predetermining device used as a mere manip ulator to apply and release the brake as will now be described.

Rendering hie a'utmnat'ic 57/0, mechanism inefl'cci'we.

Figure l. of the drawings depicts at tat a plate secured to the base A and having lepeater oii. Said plate is slotted and its slot coincides with one formed in the base A. A handle member d5 operates through the plate 44 and base and is connected to a lever 46 beneath the base. The inner end of the lever 16 is pivoted at 47 and its outer end is movable to a point behind the arm 37 or" the shaft 13. When so moved. it will be obvious that the actuator G is prevented from rocking movement toward the socket member 1 to carry the link 4; from the dotted line posi tion of Figure (3 wherein it is inactive, to the position of Figure 4: required for automatic operation of the stopping mechanism, Under these conditions the automatic operating means for the. stopping mechanism will be rendered inactive by the adjustment of the lever 46. On the other hand, the handle 30 of the operation controlling device may be freely manipulated to turn the wheel 27 to and from positions in which the end 25 of the lever 25 enters the notch 28. The use oi the handle 30, therefore, solely for brake control purposes substantially like the use of corresponding manual means on ordinary known types of graphopl'iones, is enabled and the automatic stopping means is inactive.

The flange 11 being formed with a con tacting edge inclined toward the notch 12 tends to facilitate rather than oppose movement of the tone arm, as the trip 8 approaches the notch 12.

This invention is an improvement on that disclosed in our patent No. 1,406,607, dated Feb. 14, 1922.

Having thus described our invention,

what we claim as new and desire to secure by Letters Patent, is:

1. In talking machine mechanism of the class described, the combination of a turntable, a reproducingdevice associated therewith, a motor driven part, a brake for stopping the turntable, means for operating the brake from the motor driven part, and means controlled iroin the reproducing device for setting sald operating means into action.

2. In talking machine mechanism of the at a certain point in the movement of the trip to set the operating means between the motor driven part and the brake into action toenable the brake to be applied by said motor driven part.

Means substantially as claimed in claim 2, wherein the trip is adjustable relatively to the reproducing device, the said part being adapted to interlock with the trip for holding the trip stationary under certain conditions, when said trip becomes effective to act upon said part for the purpose stated.

1. In talking machine mechanism of the class described, the combination of a turntable, a reproducing device associated therewith, ainotor driven part, relatively mov able trip and detent members, one carried frictionally by the reproducing device and movable therewith under certain conditions but adapted to remain stationary under other conditions, the other member engaging the first member for holding it troin movement under certain conditions of movement of the reproducing device, and an op erating device between the motor driven part and the brake to cause the motor driven part to apply the brake, said operating device being prevented from such action by one engagement between the trip and detent members and permitted to cause said brake applying action by a different engagement between said members. i

,5. In talking machine mechanism, a reproducing device comprising a tone arm, a turntable, a pivoted plate adjacent the tone arm, a trip frictionally attached to and turn ing with the tone arm and having a portion engaging with said pivoted plate, said pivoted plate being provided with a notch for receiving the trip, a motor driven part, a connector for connecting the motor driven part with said pivoted plate, the trip being movable in engagement with the pivoted plate so as to hold the latter in a position in which the connector is inactive, but the trip being adapted to enter the notch of the piv oted plate to render the connector active whereby movement of the motor driven part may be communicated to the connector, and a brake adapted to be operated by said connector fronrthe motor driven part.

6. in talking machine mechanism, a tone arm, brake operating means comprising a 35 I producing means, but adapted tovbe shifted pair of normally disconnected members, one of which is pivoted to turn, transversely of the other, and one of which is shiftably connected with the tone arm, and means for operating the brake and controlling this engagement of said members. I

7 In talking machine mechanism, a turntable, a brake therefor, and a tone arm associated with the turntable, combined with means for releasably holding the brake in non-braking position, means for operating the holding means to release the brake and including a pair of relatively engageable members, one of which is shiftably attached to the tone arm, and instrumentalities adapted to be set into operation by movement of the brake for disengaging'the members of the pair from engagement with one another.

8. In talking machine mechanism, a tone arm, a member having a normally fixed but shiftable connection with said arm, a brake for discontinuing.operation of the graphophone motor, means releasablyholding saidbrake in non-braking position, a second member riding normally on the first named member but having means of engagement therewith for holding same stationary while the tone arm is manually turnedto stopposition, and means carried by the second member for releasing the brake from the holding means. I j

9. In automatic stop mechanism for graphophones, sound reproducing means adapted to move over arecord, stop control means normally moving with said sound re-v with respect thereto, movable means controlled by said control means for moving a member into the path of a motor actuated element, motor stop means,imeans for releasably holding same inoperative, said member being adapted to actuate said holding means to release the stop means when actuated in turn from the motor actuated element. j a i 10. In automatic stop mechanism for graphophones, movable sound reproducing means adapted to be propelled from a sound record groove, a member normally moving therewith and having a frictional adjustment with respect thereto, a second movable member normally held from movement by hearing lightly against the first member, one of said members being provided with a cut-out portion adapted to be entered by the other of said members, whereby the second member is relieved from its bearing against the first member and permitted to move, motor stop means, and motor actuated-means for operating said motor stop means brought into operation by said move-v ment of the second movable member.

11. In automatic stop mechanism for graphophones, movable sound reproducing means, a trip thereon and having a friction'al adjustment in respect thereto, a plate o normally riding lightly on said "trip and posite same" in the movement of said sound reproducing means, motor stop means','meansconnected with said plate" for operating said motor stop means, and motor actuated having acut-out portion adapted to beentered by said trip when said trip comes op:

means for operating the" last named means brought into operation by the movement of said plate. v

12. In automatic stop mechanism for graphophones, a turntable, movable sound reproducing means, a trip mounted thereon and having frictional adjustment in respect thereto, a plate plvoted on the machine base and adapted to be lightly. engaged at.

one end by said trip, and having a; cut-out portion adapted tobe entered by said trip, whereby when said trip comes opposite said cut-outiportion the plate turns on its pivot, f a motor driven projection adjacent to the turntable, motor stop means, and means for operating'said motor stop means adapted to be brought into the path of said proplate. a

13. In talking machine mechanism, the

combination of a turntable, a brake there for, reproducing means, automatic control means mtermedlate the IEPI'OdHCIHg means, i

and means for causing application; of the disabling the automatic means for thebrake.

claim 12, combined with'a manual device for operating the stop :means, and means for" discontinuing the coaction -ofthe projection L and'the means that works in its path so that the automatic operation ofthe stop means may be rendered ineffective at will.

90 jection by movement of the said pivoted I 15. Means substantially as claimed in claim 10, wherein the last named means may" 11H) v i be rendered ineffective to operate the motor stop means, at Wlll. v 16. In automatic stop vmechanism for graphophones, sound reproducing means, stop tor the graphophone, stop control means. movable therewith, a movable plate normally adapted." to co-act with .said stop control means for efiecting automatic opera&

tion of therstop, anda manipulatablepart having'means to co-act with said plateand support it so'a's to interfere withits cooperati'on with the said, stop 'controlmearis,

whereby automatic operation of the 'stop mechanism is dispensedvwith when desired.

17. Intalking machine mechanism, a tone arm, a member having anormally fixed but shiftable connection with said arm, abrake for discontinuing operation of the grapho-v phone motor, means releasably holding said brake in non-braking vposition, a second member riding normally on the first named the second member for releusingthe brake from the holding means.

In testimony whereof We alibi our signer l0 tures.

CLIFFORD o. BROOKS. EDWIN o. KLEMM.

Images