US2545361A - Automatic phonograph - Google Patents

Description

2,545,361 AUTOMATIMC PHONOGRAPI-Ig '7 Sheets-Sheet 1 V 7 Filed ;May '10, 1946' Q Why March 13, 1951 A. M. KASNOWICH I AUTOMATIC PHONOGRAPH 7 Sheets-Sheet 4 Filed May 10, 1946 INVENTOR'J. Wilm m" BY I :Mgrch 13, 1951 A. M. KASNOWICH AUTOMATiC PHONOGRAPH 5 t e e h a s t e e h S Filed May 10, 194

A M KASNOWICH 2,545,361 AUTOMATIC PHONOGRAPH 7 She etS-Sheet 6 March 13, 1951 Flled May 10 1946 March 13, 1951 IA. M. KASNOWICH AUTOMATIC PHONOGRAPH Filed May 10, 1946 7 sheets-sheet 7 Patented Malt. '13, 1951 RATE? P Q QGB PH' Gmam ie to Wei-it we fil -ml ether elements.

' machines are very imquen fiiy finsteflged pliblicffplaces and *therefore euweetem -16 as wen as to a great deal of 'deii'berwfie abe ee; 50+

a construction which is met Hike I out of m'delj, which flees mobmemfire 'a'gerigate adjustmefit anti servieinganfl replacements wbiieh migi'It-Ebecnm-e mec eautomafic reevrfi changer-melee 4 flazr in its brpafi general aspeflrs be hat a: Lapse-a in United staies meant Ne. FR Green, reissued .j uly 23,31940; Tb departs from the Green structure -a s'im'p1iflcafion 10f 1ihe arrangement for ljeyersal of the record tre'rrs'fer'meeh V 11k ldpzg stanfl'ing prebiem 'the'mitmri mmfd change! are, pazrfiieulafly in the whys ereof Fig. 5 is a transizerse section ipa ken max mums 00 automatic gphonegrapt is emee braking hemflshe 1.

'begsxms i; flue eame as #of like mmd-ehawiger henein disclosed e ther and $1221; is 'imurpnrabefi"hy meierenee herein for thepwpes zg ighm em inusmfiivemamameie at me'invenfionae e 2 is 8L 55 ma e uymmame 1.402%

' e is ezevaseen ma ream, :ergeppe s'iiie sifie. pagzsfemkg-en' Fig.4 is a m-enlarged pla n view wiilm as fie 6-4 M wanking theturfiblble. Fig. 1-7 is a meetitm-=of 1 9 235 em efieveitimeii wi n ma m eamnee 1 earcefn s.

the ma azine and piac'efdbn thejlaying we I mzembere.

1 15 a e? a I, im;

As clearly shown in Figs. 1; 4', 5 and t. the

transfer drive shaft I 02 has, fixedly secured thereto, a face cam I 45-for the operation of the plunger IM to close the grippers to pick up a record to transfer it to the turntable or from the tuintab le to return the record to the magazine after it has been played and to open the grippers when the transfer is at rest with the arm; I34, eltherover the; magazine or in the forward position encircling the turntable.

'lhisisaccomplished by means of a bell crank I lever'MB which is pivotally mounted'in a bracket I41, secured to the pedestal 56. The lever I46= has-a bifurcated end I40" which engages ina.

groove' i"4t provided in the outer endof the plunger -I-H, and has a ball portion I50which is cngaged in a groove 'l5l see Fig. 17) in. the cam :5. Normally the. ball I50 is in a radiallylifted from the turntable and returned to themagazine, the plunger operation is automatically reversed to grip the disc before/it islifted, and

toreleasethe disc when it is back in position in the magazine. The transfer barrel H5 is rotated, after th grippers are closed, by meansof :a -quadrant gear I I'52;Fig. 2, pivoted at I 520 and 'this quadrant gear meshes with a gear wheel I53 fixed to the outer end ofthe barrel pintle I28. The quadrant gear I 52 is in turn actuated by apin I52'a projecting from a disc 82a secured to the inner end of shaft I02, said pin working in a slot I521) in thequadrant gear, the contour of the slot being such that the quadrant is moved in c'n'e-directionwhen a disc is to be deposited on the turntable, and in the reverse direction when the disc is tobereturned to the magazine,- to move the barrel I accordingly. 7

i During the turning movement of the barrel and transfer parts, and whilethe block "I 33 is out I will be rocked accordingly to. place one or the other of the plungers I54 or 55 in operative position to rotate the barrel .in one direction or the other to place theiselected' side of the record up- The plungers I54 and I are lever IBI, medially pivoted on the plate i56, below the rocker plate, and said angular upper end is formed so that the rocker plate is locked ineithr position in which it is moved by moving the lowerend of the lever I61.

The operative positionof the plungers 154 or I55 with relation to' the barrel I25 is controlled through the lever I6I, by a lever I62, pivoted at I63 to the plate '52, and having an angularly position slot I521: through which is freelypassed; as well as through the slot 56', the shaft iit-carry' ing the pinion 46 which moves the magazine through the rack 48. The position of the pinion 46 in the track controlswhich'side of-arecord will'be played; if it is in the lower half ofithe track one side of the record will be played; if in v the upper half, the opposite side of the record will be played. Hence, as the position of the shaft M in the slot I62a is varied, the lever I62 wards on the turntable. r I

A pick-up comprising a longfarm Mha'ving'a stylus E3 (see Figs. 1 to 3), is pivotally mounted on a shaft 55 which projects upwardly'fr'om a post 41 provided on the rear side of the base ID; The pick-up arm is'also permanently fcon nected for operation to the shaft I62 so that its movements are positively coordinated with the movements of the transfer to swing the arm:

over and lower it onto the outer portion of the record when a disc is placed on the turntable,

and to raise and swing the arm away from the i I turntable before the disc is removed cl engagement with the cheeks of the bearing pedestals 56 and 58, the button I32 is eccen tr-i'eally engaged; by one or the vother of a pair of selectively projected plungers I54 and I55 (see 6), sli'dably mounted in a plate I56 fixedly secured to said pedestals, to turn the gripped record disc into the horizontal plane of. the turntable, or back into the vertical position for reinsertion in the pockets of the magazine after playin I The spherical face of the button I32 is provided with angular grooves I51 and I58 which extend parallel to an axial line between, them and inward from the margin, and then at right angles again outwardly. Figsfi 0rd. Then as. the button swings past the plungers in the forwardmovemerit of the transfer, the projecting plunger enters; one side of its groove, strikes the angle and; rotates the button. and transfer arm, laterally ninety degrees, and thenpasses out'the other tangential portion of the groove. During the return movement, the plunger passes through the groove in the opposit'e'direction and turns i the 'arm'back to the which position.

The base I66 of the pick-up arm 4| has a forwardly projecting arm portion I61, Fig. 3,, which rides on the flange 168 of a cam I69 which is fixedly mounted onthe rear portionof the shaft I02, particularly shown in Figs. 3 and 4a The flange I68 normally lifts the stylus clear of the turntable, but has a flattened portion I10,

Fig. 3; which lowers the arm and the arm is swung overthe table by means of a downwardly projecting pin III, secured in the arm I61, which pin is engaged in a groove I12 formed infthe periphery of the cam I69. The groove has a circumferential portion'n'ear the outer .end of the cam for holding the, stylus in normalposition away from the turntable, as best shown in- Fig. 4. The groove then extends helically on the surface of the cam to swing the arm over theita'ble, then has aportion 113,3which leaves the pi'nfree to move asthe stylus moves,

toward the center of the disc in playing a record,

" and then has a portion to swing the stylus back out from over the turntable afterjit has first been lifted again by the cam I69.

The selecting operations are controlled lows: i

as at;

Extending across the machine is a selector mechanism frame comprising spaced vertical end platesI'IlI rand I03 between which is rotatably supported a horizontally disposed selector I05 having-a shaft I01, the ends of whic'h project through said plates and thus support the slidablysiip ported, Fig, 6, in the upturned end portion 159'; of the plate I56, and the lower ends. of the plungers are pivotally connected to opposite sides I of a rocker plate I60, which is centrally pivoted to the supporting'plate I56. The lower edge of I the rocker plate I is centrally recessed to accommodate the angular end of an'operating,

, Theselector drum is driven by an encompassing gearv wheel I93 secured thereto approximately abuser,

midwayits length from a wormI95 (see Figs.

and 11) formed on the end of the shaft 82-. r

The surface of the drumis provided with a helically arranged row of regularly spaced projecting selector lugs I14, extending the length' of the drum. 5

Between the selector frame plates WI and I03 .are fixedly mounted aselector lever support bar I16, Fig. 5 or 11, a slotted selector latch supportbar or frame I11; and a selector lever spacing comb I18, in which is suitably supported aseries of selector units corresponding to the,

twenty sides of the ten discs. Each selector unit comprises: a selector lever I19 which projects through a corresponding slot in the comb I18, and has its lower end-pivotally mounted on-the-bar I16 through a slot Ia; adepending latch lever IBI, and a solenoid I82, the solenoids being arrangedin two rows to save space laterally. V r

The selector levers I19 have projecting. arm portions I83 for engagement in notches I85 provided in the latches I8I; and the corresponding levers and latches are connected by springs I85 and IBM to the frame I11, so that," in normal I position, as'shown in Fig. 5, the selector levers are locked away from the drum and out of engagingrelation with their corresponding lugs I14.

When a solenoid is energized, the correspondinglatch I8! "is attracted and disengaged from its associated lever I19, with theresult. that the upper end of the latter is swung inwardly towards'the drumby thepull ofthe spring I85 on the arm I83, and into the path of the corresponding lug I14. As the drum is rotated, thelug I14 contacts with an angular projection I81. on the upper portion of the lever, and forces the lever downwardly andcontinues to sonforce it downwardly until the lug slips off the inner end of the projection I81. When this occurs,

the solenoid has been "deenergized and has al lowed the latch IBI to be pulled, by the spring I8Ia, into contact with the lever I19 so that the projecting arm I83 enters the notch "I84 and strikes the upper end of the notch when the lever is free from the lug andpulled upwardly again by the spring I85. This restores the selecto parts to the normal locked position;

Rotatably mounted in andextending between the frame plates is provided a clutch operating shaft I89. This shaftis provided with a lateral; vane I89a, "so that when a lever I19 is pressed downwardly by its lug I14, the vane I89a of the shaft I89 is contacted by the lower end I83 of the lever, and the shaft ISQ is rotated clockwise for a purpose which will hereinafter be explained On the outer face of the frame plate I03 is mounted the starting switch ISI which is-closed, as will be hereinafter described, on the'operation of a selector lever and the insertion of a coin in the coin chute (not shown), and the machine will immediately start to function.

' It should here be explained that at the en 7 of the precedingoperation the transfer mecha nism and the stylus erating means were rendered inoperative by'the de'clutching of'the shaft 92;which, in turn, rendered the shaft 'IOZ in,-.

operative, the shafts,,18, 80 and 82, onthe other" hand, being left operative, the clutches 84 and 86 between" them being left intheir clutching 'positionS. I

,To return to the present operation; the mag-f were we s ent e s? s a t,

"84, leaving onlythe pulleyf11 I and its, shaft rotated by;a'pinion 200; (Fig. 5);,from aiworm 202 on the shaft 82 until the lug 114 of the;

selected record meets and'depresses the cor spending-selector lever I19. This depression of; I the lever I19 will rotate, as hereinbefore stated;

the1clutch operating shaft I89, which, through? a pin 204, .whichworks in a slot 205 in one end of a shifterrod 206, will retract the rod to open I h t h 5 t ign o a i O t;82;

and the movement ,of the magazine, the. latter-11 having now reached; the position where the ;se-'

lected-recordisin position to be gripped by the grippers I36 and I3 9 I 4 The clutches 86 and 94 'are respectively, oper-.

" ated by pins 208 2 I0which project horizontally I from. a vertical 2 rotatable turret, 2I2 which pulled-in one. direction by a spring 2I4- Thus;

in theoperationfabove described, the shifter rod 206 willrotate' the turret against the action or. 1 the springZI I, andat the'same time willmovef, thepin '2) to clutch in-theshaft 92'ancl hence.

the shaft I02 and the transfer and stylus mechanisms operated thereby, both'of which mechanisms willnow obviously start to. operate,,of

course. in' proper sequence, to, perform their res'pective functions, which will be clear from, the description hereinbefcre appearing.

V ,Intherotation of the transfer shaft m, th stylus arm pin I1I is first in the circumferential portionvof thegroove in the cam -I69 which fixedlymounted on the shaft I02. When the;

discis placed on 'the table, the helical portion;

ofthe groove engages the pin and the armisswung over the edgeof the disc andlowered, by the flat surface I10 of the camflange I-. 8, moving into cooperative relation with the stylus b se r i m L, 1 t ii it'; This movement of the stylus of course occurs during the period in whichthe gripper is being opened; and when thestylus is lowered the pin I1'I;is free to travelinthe widened portion I13 f the cam groove. i

- At this point, that needle'43 in playing'position, all of the mechanism is disconnected by'operation of -the'clutch;

and, -of course, 'the motor and the turntable rotating. The opening of the clutchB I is brou ht about by a horizontally disposed pinjlfi; carried:

by a vertical pivot 218 to which is connected'one end of a shifter rod 220,.the other end ofwhich has a spring 222 secured thereto, and t9, which rod isalso attached the lower bent-over end of esa a leg223 (see Fig. 1'3);depending from-;a-"hori-;

zontally disposeddisc-like member. 224,, the late,- ter also having a projection 226110 the. outer end of; which is secureda spring 228, theopposite end. of, which is secured to a like projection 230,;

on another. disc-like member 232 superimposed on'thesmember 224, both of said memberstbeing rotatabl supported on a,pillar 234 fixedjto the" base-I0, f 'Ih'e member 224' also carries tangentially thereto amnr 236 which has-rolling can;

tae't with-a circular track 238 (see Fig. 14 proan inwardlyjfacing hump 240,; andfwhen the ibuer 23a strikes" this in the rotation'of thefcam" the result is that through relative movementbej tween the members 232,, 224 brought aboutlby the spring 228', 'via the leg :23, t e shifter tau; f220.,is thrown to the right and the clutch opened at the time and .for' the purpose abov e'in'dicatedQ After therecord ihas been played, 'the'clutch 8'4h'a's'to be restored to operativepositionso that is to say, the placing of the: disc can be transferred? back: to the megazine.

' Fi'xedly secured in. front. of the downwardly depending portion I6'I of the arm I6! is an arcuate guide-242 in which is adapted to move free1y ;a slide 244 ,having upturned- -ends -244a and 2441) which are located in the path of the side edges of the apron I6la .of the arm I61. Thus, as the-arm is moved outwardly, the apron will push the slide outwardly through I contact I with the'end244b. Onthe other hand;

arm movesv inwardly. as thezstylus moves: iniwardly along the grooves of the "lclisc the apron .ilfi'lja will move the slide. inwardly by contact with 4 the, end 244a. This inward movement;wi11.;co'htinue until the playingof the-disc is boin'pleted whereupon the end.2.4.4a will strike the upper-part of abentrockinglevr 246 pivoted onl-tlieddisc member 232, tip it inwardly to release its depending portion 246afrom a notch in the disc 224, thus releasing the leg 223 and allowing the ispring 222 to pull the shifter rod inwardly to move the pin 216 to restore the clutch. As the stylus arm is returned to its non-playing posithe commencement of. operations, was rotated clockwise against the tension of the spring 2I4 and during subsequent operations the turret has been maintained or. locked in this position byfa latch'bar 250 (see Fig. 4) pivoted in a bracket 252 secured to the base 10 and adapted at its front end to engage a stop 254 on the .base of the turret. The rear end of the latch bar. 250 has an upstanding projection 256 (see Fig. 6)

- which at the end of the cycle of operations is overridden by a pin 258 projecting from the cam I45. This contacting of thesaid parts tips the .latch bar out of contact with the stop 254, thus permitting the spring 2l4 torotate the turret anticlockwise and restore the mechanisms under its control to their original positions.

This accomplished, the machine must be shut down, and this is brought about by a projection 260 0n the disc 82a (see particularly Figs. 2, 4 and .6) which depresses a'lever 262 pivoted at one end to a bracket 263 on the base 10, the other end of said lever in. turn being connected to and hence depressing one end of a bent lever 264 pivoted at 266 to the selector end frame I03, this depressing action being against the pull of ag tension spring 268. To the opposite end of the lever 264 is pivoted a vertical lever 210, also under the influence of a tension spring 212.

216 which extends across the machine in front of the upper ends of the row of selector levers I 79 (see Fig. 11).. On the lever 21s, outside ofthe .Jend frame I03 (see Fig. 6), is fixed. a cam.2l8..

lflow when a selector lever I19 is moved for wgg d on operation of the machine by a user, the depending portion 216' of lever 216 is forced forlatch member 302 pivoted at 304 to thepulley and "a particular-record to be played, a turntable,

.wardly, thus rotating: the-z-cam- 216 :to push the lever-210 to-the left (Fig. 6) ;to free the switch arm I9I from the notch210'allowingit to drop to close theswitch and start the machine inop- --the.tii'ne the record, magazine has been moved, in the operation of the machine, to place the selected. record; in position to .be transferred to the turntable-.64,the disc -82a'w-ill have been rotated to such position-as to move the .projec .Ition 260 from the high pa-rt ofthe lever 262 .-(see Fig. 2) ,This will allow the inner end of the lever 264 to move upwardly-undertheinfiuenceof the spring 26.8.and the outer end thereof to drop, v15

pulling down with it thelever 210, thespring 212 .at. the same time pulling the upper portion of .zleifei..a2]0 outwardly, Hencawhen the lever 110 fisslagainrr s dyat. the: end-0 the cycle cipherstions, the notch 2w. will. be imposition toengage the switch arm I9I, raise it, and thus open the switch to shut oh the machine.

; However, if a further record has been selected for playing priorto the completion of the playing of a first record, the switch will not be opened on the completion of said first record-playing operation because, in such case, the cam 218 will hold the lever 210 vertical and hence when said lever is moved upwardly at the end of the playing cycle, the notch 210' will miss theswitch arm I9I and the machine will continue in operationto play the former record selected.

In Fig. 20 is shown means for preventing damage to the machine in the event that some part thereof jams. To this end the drivenpulley TI is provided withan overload clutch comprising a having a tapered key 306 which normally pro- 'jects into a correspondingly-shaped keyway 308 out in the shaft section 18, thus locking'the pulley and shaft section together, for rotation. In a slot 3 I 0 cut tangentially in the pulley is mounted a headed pin 3 I 2, the head of which is pressed by means of a spring 3 I4 into engagement with the inner end of the latch member 302. The pressure of the spring 3I4 is ad ustable by a screw .3I6 threadedly engaging the correspondingly threaded interior of the slot 3"]. As will be understood, when the load exceeds the pressure of the spring, the key will be forced from the slot 308 and the connection between pulley and shaft section broken. After proper adiustment or repair has been made to the machine, the overload clutch can be manually reset. 1

It is to be understood that various modifica-' tions may be introduced into the structure hereinbefore described without departing fromthe spirit and scope of the invention as defined in the means for transferring said selected record from said magazine to said turntable and back again to said magazine from said turntable after the record has been played, means for moyingsaid magazine for placing said record in position to be so transferred, a pick-up arm and stylus 'jcarried ithereby adapted to be placed in positionfto. play said selected record when placed upon thejturm for dzable; a'jsource of power; a control shaft rotated" .in one di'rection only-by' saidisoiirce of "power,

' -said control 'shaft comprisingithree 'sections,fi.a

clutch Joetween the first and .seiz 'on'dsections of said shaft and a second clutch between'thel'secr ond'and lthird sections of said fshaft, a shaft for positioning the magazine to perinit a selected record to be transferred'to-the turntable, 'driven fromsaid. third shaft sectioma driireshaft'driven from said'second control shaft section, a third magazine to the turntable andhloaek againto the magazine and for placing isaid pick-up arm in position to play said record, and *for returning the pick-up arm and stylus toan inoperative position on completion of "the playing-bf isa-id record, and means under control of said pick-np -clutch in said driveshaft, a transfer? shaft driven -v from said drive shaft for conti'o irig the operav tions of transferringthe selected cord from the nmugsoi armifoi' operating' the: elutch between and second control shaft sections.

" V REFERENCES amn The following referenoes are of file of patent:

said first record in the UNITED STATES P TENrs Date

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