US2347995A - Phonograph - Google Patents

Description

L. E. DETTLE May 2, 1944.

PHONOGRAPH Filed Oct. e,

1941 8 Sheets-Sheet 1 1 l 1 l l May 2, 1944. l. E. DETTLE 2,347,995

PHONOGRAPH Filed oct. e, 1941 's sheets-sheet 2 May 2, 1,944-` l.. E. DETTLE l2,347,995

PHONOGRAPH F'iled oct. 6, 1941 a sheets-sheet 4 L. E. DETTLE May 2, .1944.

PHONOGRAPH Filed Oct. 6, 1941 8 Sheets-Sheet 5 May 2', 1944.

PHONOGRAPH Filed oct. 6. 1941 vla; DETTLE 2,347,995

8- Sheets-Sheet 6 MalyA 2, 1944.

L E. DET-r1.5

PHONOGRAPH Filed oct. 6, 1941 aV sheets-sheet 7 May 2, 1944.

` L. E. DETTLE PHONOGRAPH Filed oct. e, 1941 8 Sheets-'Sheet 8 rnono'oaarn Lawrence E. Bettie, (Chicago, lill., assigner to Roch-ma Manufacturing Corporation, Chicago, lill., a corporation of Delaware Application October S, i941, Serial No. 213,811

(Cl. 15M-143) id Ciainis.

This vinvention relates to phonographs andr more particularly to selective multi-record phonographs provided with means for selectively predetermining the playing of any record or each of a plurality of records.

It is an object of this invention to provide a multi-record phonograph with a new and lmproved means for predetermining the operation oi the phonograph.

Another object of-this invention is to provideA a new and improved means for predetermining the operation of the phonograph which may be adapted for remotely controlling the operation ofthe phonograph.

Still another object of this invention is to provide in a multi-record phonograph having a reciprocable selector, improved means for con- Fig. l1 is a detailed view of a portion of the .selector mechanism shown in Fig. 5;

Figs. 12 and i3 are detailed views of the electromagnetic means and the selector taken across the line i2-l3 of Fig. 5, and which serve to illustrate certain operations; and

Figs. 14a and 14h are a circuit diagram of the phonograph including the means for selectively energizing the electromagnetic selector controlling means.

Referring more particularly to Figs, 1, 2, and

J3 of the drawings, there is shown a multi-record trolling the operation of s aid selector and which will be simple and economical to manufacture. Other and further objects of this invention will become more readily `apparent by reference to the following description taken in connection With the accompanying drawings wherein:

Fig. 1 is a diagrammatic representation of certain essential components of a multi-record automatic phonograph embodying the present invention;

Fig. 2 is a top view of the phonograph showing the mounting panel above which there is the record magazine, the turntable, the phonograph pick-up and a portion of the selector mechanism;

Fig. 3 isa detailed top view of the master cam and related mechanism as seen directly below the mounting panel of the. phonograph;

Fig. 4 is a front view of the electromagnetc selector controlling means;

Fig. 5 is aside view of the electromagnetic means of Fig. 6 showing its relation to the reciprocable selector and other related mechanism of the phonograph;

Fig.6 is a cross-sectional viewof a porton of the electromagnetic means as seen from the line 6 6 on Fig. 5;

Fig. 7 is a cross-sectional view of a 'portion of the electromagnetic means as' seen from the line in Fig. 5; 1

Fig. 8 is a perspective viewA of one-.of the reciprocable stop members of the electromagnetic means of Figures 4 to 7;

Fig-.v9 is a cross-sectional view taken across one of the solenoids as viewed from the line I-I in Pig. 6;.

Fig. 10 is a. partial rear view of themechanism showninFig.4;v

phonograph 2l having a record magazine 22, a turntable 23, and a phonograph pick-up 213 supported above a mounting panel 25, vwhich panel forms part -of a cabinet enclosing the phonograph mechanism. By means of a record selector' 26, a portion of which is above the mounting panel 25, and the remainder of which is below the mounting panel 25, the records contained moved from the record magazine to a position directly above the turntable 23. The turntable 23 is movable for moving a record to and from playing relationship with the reproducer or phonograph pick-up 24, so as to remove the phonograph record from one of the record trays or carriers of the record magazine 22. The phonograph turntable 23 is rotated by a suitable electric motor 2l, and the turntable 23 is elevated into position with respect to the phonograph pick-up 24 by a reciprocable slide 28 which is actuated by a master cam 29. The master cam 29 isactuated by an electric motor 3| by means of a suitable belt and pulley arrangement 32 which drives a worm screw 33 engaging a gear wheel 34 fastened to 'the master cam shaft 35. l

,y ing a clear understanding of the invention, brief reference has been made above to certain general structural features of that phonograph to which the present invention has been applied.

Referring more particularly to Fig. l, it will be in the record magazine 22 are includes an electromagnetic selector controlling means 36 mountedsso as to cooperate with the selector mechanism 2S. The electromagnetic selector controlling means is connected through a cable 31 to a translating means 38 which may be enclosed within a suitable container mounted within the phonograph cabinet. The translating means is energized from a suitable power line the shaft B9 of the selector mechanism 26. The cam lever 58 upon being actuated by the stud 61 upon the gear 34 produces a rotation of the shaft 69 thus causing the selector cam or linger 36 to engage the member 63 of the record magazine 22.

thus unlatching one of the rings 56 for movement out of stack relation over to and above the turntable 23.

Upon rotation of the master cam 29, cam followers 1| and 12 are engaged. The cam follower 1l is operatively connected to the record carrier moving means 62 and cooperates with the master cam 29 for driving the record carrier moving respect to the phonograph cabinet or one of these Y control actuating means may be mounted on or incorporated with the phonograph cabinet. The control actuating means v4 1 and 48 may constitute any one of a number of devices well known in the art, but preferably are of the' type shown, described, and claimed in the co-pending patent application oi' David C. Rockola, LawrenceI E. Dettle, and Eugene L. Triman, for improvements in Phonographs, Serial No. 390,774, led April 2B. 1941. The control actuating means 81 and 38 are each provided with a dial52 and 53 respectively, each of which is provided with a certain number of ilnger apertures for cooperation with a suitable stop, the structure of which is commonly, known in the art. The apertures in`the dials 52 and 53 correspond to numbered selections provided within a suitable index such as 54 and 55 respectively.' The actuation of the dial causes certain electrical circuits to be completed and causes electrical impulses of a predetermined number to be transmitted to the translating means 38. The essential circuit elements of the control actuating means such as 41 and 48, and the translating A`means 38 will subsequently become apparent when 58 has a portion 58 extending beyond the pivot post 58 for pivotally carrying a latch member 6l.

moving means 82 and an operating member 83 for releasingV the corresponding record carrierand drivinglycoupling it with a record carrier mov ing means when the phonograph begins a cycle of. operation. The-electric motorl 3| is energized thus driving the gear 34 attached to the maser cam shaft 35 which carries the master cam 8. Rotation of the master cam 23 produces a reciprocable movementof the selector mechanism 28. The `'selector mechanism 28 travels to its upper limit o! travel and then returns downwardly until it engages a vsuitablestop member 84 which is a part of the electromagnetic selector controlV means 3l. When the'selector mechanism 2.8 has stopped at a predetermined elevation. the upper end thereof which carries a selector cam oriinger 88 is` rotated on the shaft of the selector mechanism 28 by a'.k stud 81 mounted upon the gear I4 by actuation .of a cam lever 88 which is mounted upon means to move any record carrier ring 56, of which the latch 3l has been operated through its operating member 83 into engagementI with the record carrier moving means, to a position over the turntable 23. The rotating master cam 29 by engaging the cam follower 12 thereafter raises a reciprocable slide 13 which carries with it a `turntable reciprocating arm 28 thereby to raise the rotating turntable 23. During this raising movement, the rotating turntable 23 passes through the record carrier ring 58 and removes the record therefrom. The rotating master cam 28 continues the upward movement of the turntable 23 tomove the record into playing engagement with the record reproduceror phonograph pick-up 24.

When the master cam 23 has been rotated suiliciently to bringthe turntable 23 into reproducing position, a switch is operated which opens the electrical circuit for the cam motor 3|, thus stoppingrthe cam motor 3|, but not stopping the phonograph turntable motor 21.- The phonograph record upon the turntable 23 thereupon is reproduced 'by means of a suitable amplifier and sound reproducer, not showmas will be u'nderf stood by those skilled ini` the art. The reproducer 24 travels across the phonograph record on the turntable 23. Such movement of the phonograph reproducer 24 causes rotation of a cam member 14 attached to the shaft upon which the phonograph pick-up 24`is mounted. Rotation of the cam member 14. causes travel ot a projection thereonfl toward a reproducer return means 16. The cam member 14 is furthermore provided with v a notched portion 11 which is arranged to actul The latch member is engageable with a record that when the ate a portion of a switch 18 so cam motor 3i switch 18 is actuated the master is again energized.

Thus upon the completion of the playing of a phonograph record the cam driving motor 3i again rotates the master cam 28 so that the cam follower 12 and the slide 13 are moved by the cam in a direction to cause the turntable 2l to move downwardly away from the reproducer 25 and back through the positioned record carrier 58 whereby to deposit the played record thereon. After the played record has been moved out oi playing engagement with the reproducer 24, a pin or stud 19 on the rotating master cam 28 engages v the transverse arm portion 8l of the reproducer return means 18 andmoves it to rotaie the disc 14 by means of the projection 18 in a direction to return the reproducer 24 to its initial or starting position. The actuation of the disc Nbr the reproducer return means 18 and ll'does not, however, serve to deenergize the' circuit for-the cam motor 3l since by movement of the shaft 38 of the master cam 2l another switch has been closed which maintains the electrical circuit for the motor 8l.

The cam driving motor`3l, therefore, continues topperate anddriv'e the master 28 until it escasas' has completed the'movement of the cam follower l2, the slide E37 and the turntable reciprocating arm 28 in moving the hirntable is" away from the playing position.

Selector control means From the previous description of the phonograph and the operation oi the selector, it will he apparent to those skilled in the art that the reciprocable selector mechanism when stopped at a predetermined level operates to cause a predetermined phonograph record to be reproduced. The operation of the selector mechanism is controlled by an electromagnetic means 99 which operates to predetermine the playing of any record or each of a plurality of records. The details of this electromagnetic means `are shown in Figs. e to ll. The electromagnetic selector control means 39 comprises a suitable supporting frame 92 which is mounted by suitable fastening means 89 upon the frame d@ of the selector mechanism 26. The frame d2 supports a plurality of electromagnetic coils 85 which are ar-n ranged in a common plane and in two rows. in between the two rows of electromagnetic coils t5 there is a row of selector stops 9d. Each of the selector stops at is arranged for movement upon selective energization of its corresponding electromagnetic coil 9E. Each electromagnetic coil 85 is provided with a magnetic core 8l which is lil phonograph record corresponding to this particular stop has been reproduced,

From Figs 6 to 9 it will readily become' apparentthat one of `the notches 9% or di ci each of the selector stops 86 is engaged by one ci the solenoid cores 8l to normally retain the slides 8S in a position out of the path of movement of the selector mechanism 2S. As a predetermined electromagnetic coil 95 is energized, the electromagnetic force of the coil exerts a pull on the core 9F thus overcoming the bias of the spring t and withdrawing the solenoid core 8l from the notch 89 or 9i of the slide 89. The withdrawal of the solenoid core 91 from the notch on the side of the slide 98 permits the bias exerted by the spring 93 surrounding the finger-like portion 92 of the slide 86 to force the slide to move in a direction transverse with respect to the path oi movement magnetically biased by a spring 88 so as to be in A engagement with its corresponding selector stop or slide 86.` Each of the selector stops 86 is of the same configuration, such as may be seen in Fig. 8. On each side of the selector stop 9S there is provided an indentation or notch 89 and 9|. One of these notches 89 or 9| is engageable with one of the solenoid cores 8l so as normally to retainthe slide or stop 86 out of the path of movement of a selector mechanism 26. Each slide 86 is provided with an elongated finger-like portion 92 about which there is placed a. coil spring 93. One end of the coil spring 93 is in engagement with the stop portions or shoulders 94 and 95 of the slide or stop 86, and the other end of the spring 92 is in engagement with a back plate 96 which is secured to the frame 83 by suitable fastening means or screws 91.

'I'he back plate 96 is provided with a. pair of upstanding Iportions 98 which serve to hingedly support a switch actuating plate 99 which carries v' to open circuit position by means lof a. pair of'V springs |04. One side of each of the electromagnetic coils 85, and the switch actuating plate 99 are connected by suitable conductors |05 to Vground or to one side of the electrical circuit lncluding the cable 91. At theforward end of the finger 92 of the slide stop member 99 there is provided a transverse projection |06 which serves to actuate the switch `plate 99 whenever any one of the slide stops 86 has been released so as to project into thepath of operation of the selector mechanism 26. At the back end ofthe slide I6 there is provided a downwardly turned portion |01 for the purpose of permitting certain elements of the selector mechanism 2l torestore to is original position the selector stop 8l whenever a of the selector mechanism 26. This forward or reciprocable movement of the selector stop 96 thus places a stop 5ft in the path of movement oi 'the selector mechanism 26 and also closes the Velectrical contacts itl and |93. These contacts are maintained in closed circuit relation as long as any of the selector stops 86 remain vin the path of operation of the selector mechanism 25.

Selector mechanism corresponding latch member of the record carrier holding means. The selector 'mechanism which controls this operation is best shown in Figs. 5, 12, and 13, and comprises a vertical shaft 69 which is slidably and rotatably journaled at |99 in the'selector frame 84. The selector shaft 69 is provided with a keyway extending longitudinally thereof for cooperation with a cam lever 68. The cam G8 is secured against reciprocable movement with the shaft 69 at a level just below the upper portion of the selector frame 84 which is directly beneath the mounting panel 25, by means of a bracket |09. The keyway and cooperating keying means of the shaft 69 permit the selector shaft 69 to reciprocate longitudinally and provide a driving connection between the cam leverl 68 and the selector shaft 69 whereby the shaft may be rocked about its longitudinal axis whenever the cam lever 68 is operated by a. stud 6l mounted on the master cam gear Wheel 34. The cam lever 68 has a. cam surface which is engageable by the cam follower or lstud 61 and by a stud or pin ||2 also mounted upon themaster cam gear 34 for rotating the selector shaft in a direction to cause the selector cam 66 to operate one of the latch members 63. yThe cam lever 98 also has acam surface H3 contiguous with the cam surface' III for permitting and controlling thev rotation ofthe cam lever 68 end the selector shaft 69 in the opposite direction after the pin or stud ||2 has moved beyond the cam surface v l l A reciprocable plate-like slide member ||4 provided wlth a plurality of bifui'catedv lugs ||5 at its opposite ends slidably engages' the inner surfaces of a pair of spaced guide rails ||6 suitably secured to rearwardly projecting studs or portions of the selector control frame 86. The slide plate ||4 supports a pivoted plate ill-which has a projected portion or nger H8 for `engaging the stop portion 66 of one of the reciprocable slide members 86.. The pivotedAplate I|1 is pro- The reciprocable plate-like slide member ||4 is provided at its rear side with apair of spaced lugs |22 located above a rectangular aperture |23 in the slide plate ||4 to facilitate rotatably securing the lselector shaft94 to the slide plate ||4; In securing the selector shaft 69 tothe slide plate ||4, the lower end' of the shaft is arranged between the lugs |22 in such manner that an arm |24 is positioned below the lugs |22 and extends into the aperture |23 whereby the shaft 69 and slide plate ||4 reciprocate together. If desired, a coil spring |25 may be arranged surrounding the lower portion of the shaft 69 above to limit the downward travel of the selector when the slide plate H6 engages that portion of the frame, and the lazy tongs linkage |21 cushions the downward travel of the selector shaft '69.

Thus the selector mechanism-26 is operable to move the selector cam 66 between an -upper level above the uppermost latch member 63 4and a lower position level corresponding to the lowermost latch member 63, and to move the selector cam 66 in a latchl member operating .direction for engaging one of the latch operating portions 63 with the record carrier operating means l whereby to selectthe record in the corresponding the lugs |22 for engagement therewith and with n the un'der side of the cam lever 68 for yieldably impeding the upward movement of the selector mechanism at its upper limit of travel and for resiliently assisting and starting the selector mechanism downwardly during each operating cycle oi' the phonograph. A strap |26'may be bridged between the rear ends of the lugs |22 for retaining the lower en'd of the selector shaft 69 between the lugs during operation. 'Ihe arm |24 is rockable with the shaft 68 during the rotation of the shaft for moving the selector cam 66 to operate a latch .member 83. The outer free end of the arm |24 swings through the aperture |23 to a positionforwardly of the slide plate ||4, the purpose of .which subsequently will become apparent.

Rearwardly of the slide plate ||4 there is a collapsible, expansible or lazy tongs linkage |21 which is secured at its upper end to a depending portion |28 `of the bridgingstrap |26, and at its lower end to a forward upstanding lug |29 suitablysecured to the lower portion of the selector frame 84. Spaced to the rear of the lazy tongs linkage |21 is a pair of spaced vertical guide rails |3| which are secured in spaced relation at their upper ends by a bracket |32 'secured to the guide rail ||6, and at their lower ends to rearward upstanding lugs |32 supported from the lower portion of the selector framev B4. The guide rails |3| slidablyl carrya grooved rail enigaging block or member |33 which is pinned or otherwise secured at |34 to an intermediate pivot record carrier 56.' In moving the selector cam 66 in the last mentioned direction, the arm |24 moves through the aperture |23 in the slide plate |4 and enga'ges the upper end of a pivoted plate |36. The pivoted plate |36. supported by a suitable lug |31, is thereby moved forwardly above its pivot. The upper end of the pivoted plate |36 is resiliently secured to the forward face of Vand spring assembly |31 operates 'to move the upper end of the plate |36 rearwardlyv to rotate the armA |24 and thelshaft 69 together with the selector cam 66 to their initial position.

At the beginning of each cycle of operation of Y the phonograph, the master cam 29 is supporting the selector shaft 69 and the associated mechanism at the uppermost limit of travel. whereupon the selector mechanism is permitted to be lowered until the projecting finger ||8 of the pivoted member I1 engages the stop portion 64 of a stop slide 86. To support the selector at such elevation, the guide rail I6 is formed with a rack |38 of the lazy tongs linkage |21 and at its opposite v to move the selector cam 66 above the level of the uppermost latch'member 63 while the turnalong one of its longitudinal edges. The selector is supported at the elevation corresponding to the lowermost latch member 63 by engagement anchored in the slide plate ||4. Thus the pawll |42 is rockable about the shaft' |4| between limits determined by the length oLthe arcuate aperture table is being lowered. The elevated position of the selector just described is the normal starting positionand it is heid in that position bythe master cam 29 which engages'thecam roller |36 until a cycle of operation of the vphonograph is initiated. The rearwardly extending portion ad'- jacent the bottomof the selector trame 84 serves through which the shank of the headed pin or rivet |43 passes. Suitable spring means are preferably provided toswing the pawl plate |33 in a l direction to move the portion |42 into engagement with the teeth of the rack |38 for supporting the selector in an elevated position.

During the elevation of this slide plate ||4, the

selector shaft and other selector mechanism.

acentos form of a rearward projection |513 engages a stud registers with-aligned apertures and |46 in the pivoted plate |36 and the slide plate ilii,`

respectively. The purpose of thelever |61 is to hold the pawl plate |39 and the pawl |62 out of engagement with the rack' |33 until the nger .|49 with the plate |36 is moved forwardly when the cam lever- 58 is actuated to move the selector shaft '59 in a selected direction. 'Ihe ringer |49 thereupon springs rearwardly through the apertures 15| and |36 and dogs the pawl plate |39 in that position. During the forward movement of the pivoted plate |36, a finger or projection |52 located at the free end thereof operates to engage the portion |01 of the stop slide 85, thereby to return the stop slide 98 to a position where itis no longer in the path of travel of the selector mechanism.

During the lowering of the slide plate H4, the pawl |62 does not, therefore, engage the rack |38. When the pivoted plate |36 is swung forwardly, as previously described, by rotation of the selector shaft 53 and the selector cam 65, the

spring urged lever |41 moves forwardly thus disengaging the pawl plate |39.v I'he pawl plate |39 being suitably biased thereupon swings the pawl |42 into supporting engagement with the rack |38 whereby to support the slide plate lit the selector shaft 69, and the selector cam 66 in their respective elevated positions.

Tanslati'ng means lsented schematically Within a dotted line enclosure in Fig. 14a..

to one of the electromagnetic selector control magnets 85 shown in Figs. 4 to 13. The last ltwo contacts of the group of contacts |63 are also left open circuit, and the third from the last contact is connected by a conductor |5il to the last contact energizing @ne of the electromagnetic coils 85. Thepurpose ai this connection will subsequently become apparent. The switch arm |58 is so constructed that in passing from one contact to another, the arm during its transition momentarily makes Contact with two of the contacts, so that the circuit between conductors |55 and |85 is .not broken by operation of the rotary switch during the time that it goes from one contact to another, other than the first two dead contacts |62. The other switch arm |59 is so constructed as to engage only one contact at a time.

The stepper relay |55 is provided with a pair of contacts |56 which are closed each time that the stepper relay |55 is energized. The stepper relay |55 by means of the contacts |55 therefore supplies energy from the conductor |66 to the coil of the actuating relay |56 of the rotary switch |53 to ground. The coil |55 of the selector switch v |53 is connected to a switch |61 which is opened each time that the solenoid |55 is energized.

@i The selector relay |55 is of 'I'his translating means 33 comprises a rotary y switch |53 of the automatic telephone type, actuated by a solenoid |55 which in turn is energized by means of a stepper relay |55. The operation of the rotary switch' |53 is further controlled by a selector relay |56 and a cancel relay |51. The rotary switch |53 is provided with two groups of contactswhich lare engaged by two switch arms |58 and |58 pivoted intermediate their ends for rotation together by a. step-by-step movement resulting from the operation of the relay or solenoid |53 .actuating a ratchet mechanism. The arms |58 and |59 engage a plurality of electric contacts which are arranged in arcuate position. During the operation of the rotary switch, first one end of each of the switch arms |58 and |59 engages the contacts and then when these arms ha've been advanced to the end of the arcuate groups of contacts, the other end of the arm begins to engage the contacts. In the arrangement illustrated, the arcuate groups of contacts are 25 in number. A11 of the contacts |5| of the i'lrst group with the exception of the iirst two contacts are electrically connected together;4 These iirst two contacts |82 remain open and will be referred 'to The contacts of the switch |61 normally short circuit a resistor |53 serially connected to a capacitor |55, the function of which subsequently will become apparent.

a type which has a time delay release operation, and it is provided with a plurality of switch contacts which cooperate with the rotary switch |53 to perform certain operations. The cancel relay |51 is of a type which has al delay upon initial operation and it is provided with a iurality of contacts which cooperate with certain of the contacts of the relay and the switch arm |58 and the contacts |S| of the switch |53 to perform certain functions. The cancel relay |51 also has contacts which control the operation or energization of a control actuating means suchas i1 or d3 shown in Fig. 1.- 'I'he control actuating means t8 comprises certain elements which vmay be of conventional form, the' structure of which is well-known in the art and which will not be miown in detail. The elements contained within the control actuating means d@ are represented schematically within a dotted line enclosure in Fig. 14a.

As has been pointed out, a control actuating means such as $1 or t8 has a dial which is provided with a certain number of finger apertures by means of which the dial is rotated through a.

predetermined arc. The dial is spring biased so as to return to its original position. The dial is mounted on a shaft which is provided with a switch actuating arm which cooperates with a. normally open circuit switch lll. The' dial furthermore is connected to an interrupter wheel which operates tointerrupt a switch |12, thereby to transmit a predetermined number of current impulses corresponding to the angular distances through which the dial has been rotated.v

6 a relay which is provided with a plurality of contacts which are connected to the switch |1| and the switch |13. The switch |18 upon being actuated by a coin is arranged so as to remain closed until the -switch is ened by the action of a coin switch relay |15. e control actuating means 48 is also provided with a signal light |11 connected in series with a suitable resistor |18-, for the purpose of telling the operator that the operator should dial again. The signal light |11 is illuminated whenever another control actuating means is in operation.

The control actuating dial, such as 52 or 53, is so related to the switches of the control means 48 so that as the selector dial 53 is advanced a slight' distance which, however, is insufficient to bring the iirst opening in the dial adjacent the dial stop, certain operations occur which, however, have no effect upon the rotary selector switch |53. If the dial 53 is advanced slowly to a distance short of the dial stop corresponding to the first selector opening, the switch arm on a shaft of thedial mechanism permits the switch |13 to open the upper contact |19, thereby opening the circuit which is energizing the coil of the selector relay |58. switch |13 are the next contacts to be brokenl and subsequent thereto the lower contacts of the lrst contacts |19 are closed. The closing of the lower contacts |19 of theswitch |13 closes a circuit leading to the interrupter switch |12 contacts |19 of the switch |13 to the coil of the selector relay |56.

The selector relay |56 now comes into operation first closing the contacts |81 which complete a, circuit from the conductor |64 to supply energy to the switch arm |59 of the rotary switch |53. The switch arm |59 has previously been positioned upon a contact connected with a predetermined oneV of the coils 85 ofthe electromagnetic selector control means 35. The energization of one of the coils 85 of the selector control means 35 causes the solenoid core 81 to be withdrawn so as to permit one of the stop members 8S to project into the path of operation of the selector mechanism 26. This action of the stop member 85 causes the contacts |0| and |88 shown in Fig. 14h to initiate' a cycle of operation of the phonograph.

The next contacts to be closedV by the operation of the selector relay |56 are contacts |88 which complete a circuit from ground through the coil of the cancel relay |51, the switch arm |58, the rotary contacts |5| of the switch |58,

The contacts |8| ofthe which is actuated by the interrupter wheel of the control actuatingv means d8. The interrupter switch |12, however, is not energized until the dial has operated to close the switch |1| which completes a circuit for the energization of the relay |15. These parts are thus so correlated that in operation the interrupter switch |12 is never supplied with energy while the switch |1| is closed. Unless the selector dial 58 has been revolved from its position of rest until at least the iirst opening in the dial has reached or passed the linger stop, no preparatory action has been completed by the operation of the dial.

When, however, the dial 53 ha's heen moved to a position beyond the first opening of the dial 53 with respect to the finger stop, the relay |15 has been actuated thereby closing its contacts |82 which complete a circuit through the Contact? |63 of the cancel relay |59 to the power conductor |86. rhus power is supplied from the conductor |84, the switch contacts |83, the conductor |85, the switch contacts |82, through the lower contacts |19 to the interrupter switch |12 by means of which impulses are transmitted to the interrupter relay |55. A predetermined number of impulses transmitted by the interruptor switch |12 causes a predetermined number of actuations of the stepper relay |55 to close its contacts |66 thereby advancing the switch arms |56 and |59 of the rotary switch |53 to a predetermined set or sets of contacts.

when the dial sa returnsto a position of rest the switch |13 is operated so as to close the upper contacts |19 and the contacts |9|. The lower andthe conductor |69 to the conductor |85 thereby causing operation of the cancel relay |51.

The operation of the cancel relay, |51 iirst closes the contacts |9| which lock the coil of the cancel relay |51 into circuit by means of the switch arm |58 of the rotary switch |53. -The next contacts to be closed by the cancel relay |51 are the contacts |92 which complete a circuit between the contacts |61 of the rotary selector switch |53, and the open contacts |93 of the selector relay |56. As the cancel relay |51 completes its operation, the contacts |83 are broken f thereby cutting ofi the supply of energy to the control actuating means Q8, thus causing the selector relay |56 to become deenergized.

Upon deenergization of the selector relay'|56, the contacts |88 are' rst separated thereby breaking the circuit which locked in the coil of the cancel relay |51. The nextY contacts to be opened are contacts |81 which interrupt the circuits through the electromagnet coils 85 of the selector control means 35. close at the same time the contacts |81 are interrupted.

The closing of the contacts |93 completes a circuit from the conductor |95, the conductor |64, the switch contact.. .d l, the switch arm |58, the contacts |93, the contacts |92 of the relay switch |51 through the contacts |61 to the coil |54 of the rotary switch. This energizes the solenoid |55 which operates upon a ratchet which rotates'v the switch arms |58 and |59. Each time that the switch arms |58 and |59 are advanced one position, the contacts |61 are interrupted thereby releasing the armature of the relay coil |54. The capacitors |69 and resistors |58 serve to reduce to a minimum any arcing which may occur between contacts of the switch |81. This operation continues to move the arms |58 and |59 until the arm |58 engages the dead or open circuit contacts |62. The selector switch |53 in this position is then ready for a new cycle of operation to be initiated from a control actuating means such as 41 or 48. When the operation of the rotary switch |53 is completed by engagement of the arm |58 with the open circuit contacts |63,'the cancel relay |56 is deenergized The contacts |98- is again actuating so as to close the upper contacts |79 and the contacts |9i. The closing of the contacts |8| energizes the coil of the relay |15 which operates to open the switch |19. This operation occurs vonly if the dialing operation and the operation of the translating means has been complete. In the event that the dialing operation is incomplete by reason of a dialing operation occurring from some other control actuating means or for any other reason, the switch |79 will still be closed, thereby completing a circuit through the resistors |18 Aand the signal lamp |17! -to instruct the operator to again perform the dialing operation.

Phonograph circuit Whenever one of. the electromagnetic coils 85 of theautomatic selector control means 36 has been energized by the operation of the translating means 38, the projection of one of the stop slide members 85 causes the switch operating means 99 to close a pair of contacts ||l| and |93, which as may be seen from Fig. 1417, are connected to the secondary winding of a transformer |99, the primary winding of which is connected so as to be energized from energy received through a pair oi electric conductors |95 and |96. The other side of the secondary winding of the transformer |95 is connected in series with an electromagnet or relay coil |91 and a lswitch |98. The switch |98 is so varranged that it is normally closed at the end of each cycle of operation of the phonograph. 'I'hus when the switch actuating means 99 closes the contacts |0| and |03, the relay coil |91 is energized.

'I'he relay coil |91 is so arranged as to bring about the operation or closing of a switch |99. The switch |99 is normally retained in open circuit relation by a pin mounted upon a ratchet wheel 29|, which ratchet wheel may bea part of an accumulator mechanism commonly found in phonographs of this type. The operation of the electromagnet |91 causes the ratchet mechanlsm 20| to be advanced, which unit thereby closes the switch |99. The closing of the switch |99 operates to supply energy from the electric conductor |95 to the phonograph motor 2| and tothe master cam motor 3|.

Energy is supplied to the master. cam motor 3| through a normally closed switch 202, which switch remains closed until one-half of the cycle of operation of the phonograph has been completed. The switches 292 and |98 are actuated by a cam wheel 299 which is arranged to be mounted upon the master cam shaft 35, or to operate in synchronism with the rotation 4of this master cam shaft. The phonograph mechanism thereupon operates to reproduce a se'- l lected phonograph record.

Upon terminationA of the reproductionof the phonograph record, the phonograph pick-up arm operates to move the cam 'lf3 so as to bring about operation of an electric switch 'FB which is connected between the power conductor |96 and .contacts of the switch 292.

master cam shaft 95 has produced a rotation of the cam 293 which is suiiicient to again close the The master` cam motor 3| thereupon continues to operate until the cam 293 assumes the position shcwn'in Fig. 14h. Thereupon a suitable ratchet operating means actuates the ratchet wheel 29 i, thereby to open the switch |99, thus vdeenergizing the phonograph and preparing it for a new cycle of oper: ation,

Operation While each of the components of the phonograph has been described in detail together with the operation thereof, it is believed that the following brief general description of the operation will assist in an understanding of the correlation between the various components in their operation. From the previous description it will be remembered that at the beginning ,of each cycle of operation of the phonograph or wherre ever the phonograph is not operating, the selector mechanism 29 is positioned at its uppermost limit of travel so that the selector cam or operating arm 96 in Figure 2is above the uppermost latch operating member 6ft-which controls the release of a particular phonograph record in the stack of records 22. An operator inserts a coin into the coin chute of a control actuating means 98 thereby closing a` switch |9| shown in Figure 14a. The operatori then having reierred to the list of selections 55, inserts a nger into one of the finger apertures of the dial 53` and moves the dial until the finger stop has been reached. The initial movement of the dial closes the switch |19 and operates the switch |13 of Figure 14a. Uponreleasing the dial, a predetermined number of impulses is transmitted by the impulse switch |72 to the stepper relay |55 of the translating means 38 shown in Figures l and 14a. The stepper relay |55 of the translating means `38 causes the selector switch l|53 to be operated so as ,to move the switch arms |58 and |59 to a predetermined pair of contacts.

\When this operation has been completed, the

relays |59 and |51 of the translating means 38 perform certain operations so that energy is supplied through the switch |53 to energize one oi 9| continues to operate since rotation of the 75 the electromagnet coils of an electromagnetic selector control means 36.

The energization of an electromagnetic .coil of the selector control means 36 produces a withdrawal of one of the core members 81 thereby permitting ene of the slides 95 to be moved transversely with respect to the solenoid 85 and with respect to thepath of movement of the phonograph selector mechanism 29. Thus the stop portion 64 of Athe slide E6 is now in the path of movement of the selector mechanism 28. As soon as this has occurred, the rearward portion |96 of the slide 86 has actuated the switch operating plate 99 thereby closing switch contacts ||l| and |93 which are connected in the tromagnetic coils 85 to be energized thereby re- Y leasing another one of the slide members 88 and Meanwhile, however, the.`

their stop portion 64 into the path of operation of the phonograph selector mechanism 26.

Since actuation of the electromagnetic selector control means 36 has caused the contacts |91 and |93 of Figure 14h to be closed, and it may be assumed that the phonograph mechanism initially wasat rest, a circuit has been completed through the secondary winding of the transformer |94, the electromagnet |91, and the electric switch |98. The energization of the electromagnet |91 has caused the ratchet wheel 29| to be stepped forward one unit thereby permitting the electric switchy |99 to be closed. The closing of the electric switch |99 produces energization of the electric motors 21 and 3|. The electric motor 3| drives vthe master cam 29 so as to permit the selector mechanism 26 to be lowered until the projecting finger ||8 on the pivoted` member ||1 of the selector mechanism has engaged the uppermost one of the projections 64 of the slides 86 which previously has been released by the energization of one ofthe electromagnets or solenoids 85 of the selector control means 36. The selector mechanism 26 having been stopped at a-predetermined level is then locked into position by the operation of the pawl |42 shown in Figure 5. The master cam motor 3| meanwhile continues to rotate the master cam until the stud 61 engages the selector operating arm 68 to cause rotation of the selector shaft 69. Rotation of the selector shaft 69 produces rotation-of the 4selector nger or cam 66 shown in Figure 2 so that this member engages the latch release member 63, thus preparing a predetermined one of the phonograph records in the phonograph carrier 56 for movement over the turntable 23.

The master cam in its subsequent operation causes the record carrier ring 66 to be moved over the phonograph turntable 23 whereupon further actuation of the master cam causes the turntable 23 to be elevated through the ring or record carrier 56 to remove the record therefrom and to move the record on the phonograph turntable 23 into engagement with the phonograph a phonograph record thereon, the cam 293.

shown in Figure 14h has been rotated through 180 degrees so that the switch 202 has been opened thereby deenergizing the master cam` motor 3|.

The phonograph motor 21 continues to be energized until the phonograph record has beenl reproduced whereupon. the movement of the phonograph pick-upl 24 to the `innermost portion of the phonograph record causes the cam 14 to be moved to a position where the electric 'switch 18 is closed. The closing of the switch 18 again supplies energy to the master cam motor 3| to againbring about further movement of the master cam 29. The master cam 29 thereupon causes the phonograph turntable 23 to be lowered and also returns to its initial position the phonograph pick-up 24. The return of the phonograph pick-up 24 again opens the switch 6B, but meanwhile the cam 293 has moved sumciently sotas to close again the electric switch 202 thereby maintaining a supply of energy to the master cam motor 3|. The phonograph turntable continues to move down and to deposit the phonograph record upon the ring or carrier 56. When the phonograph turntable 23 has reached its lowermost position, the master cam operates to return the record carrier 56 to the stack. At this point in theV operation the master cam has moved the cam 293 to the position shown in Figure 14h and also causes the ratchet wheel 29| to be returned one unit, thereby opening the switch |99 and deenergizing the phonograph turntable motor 21 and the master cam motor 3|. At this point the selector mechanism 26 is again at itsuppermost limit of travel.

If the operator o the control actuating means 48 has selected several phonograph records, the remaining slide members 86 which have not been restored and which correspond to records still to be played, maintain the electric contacts |0| and |93 in closed circuit relation and hence when the cern 293returns to the position shown in Figure 14h, the solenoid or electromagnet |91 is again energized thereby' again actuating the ratchet wheel 20| to close the switch |99 which again initiates another cycle lof operation of the phonograph. Thus as long as any of the slide members 86 of the electromagnet means 36 remain in the path of operation of the selector 26, successive operations of the phonograph will be initiated until the phonograph selector 26 has completed the playing of all the' records selected and has restored each of the slide members 86 to their initial positions Where they no longer project into the path of operation of the s elector mechanism.

It will be remembered that each time thatthe selector mechanism 26 is stopped in its downward travel by the projecting portion 64 of one of the slide members 36, the selector is maintained in position by the pawl |42 which engages the rack |38, shown in Figure 5. When' the selector shaft 59 is rotated so as to unlatch a predetermined one ot the record carriers 56, the rotation oi the selector shaft 69 also causes an arm |24, shown in Figure 11. to actuate the plate |36 thereby to restore to the former position that pin slide member 86. If, for example, in the position shown in Figure 5 the projecting member 84 corresponds to -the first selection made by the operator, and a subsequent selection actuates a. slide located nearer the top of the selector control means 36, the return of the selector 26 to its uppermost limit of travel will not disturb this slide member, since the pivoted member H1 is provided with a Weight |2| which permits this member topivot in passing projecting slide members during the upward travel of the selector mechanism 26 and the Weight 12| restores to its former position the pivoted member l1 so that at the uppermost limit of travel of the selector mechanism 26 the pivoted member ||1 is again in position to arrest the downward movement ofthe selector at the uppermost one of the slides 86 which is then projecting into the path of operation of the selecting mechanlsm.

While for the purpose of illustration there has been shown the application of this invention to a particular type of phonograph, it isto be understood that the invention is not to be limited thereby since obviously the'invention may be applied to other phonographs having reciprocable selector mechanisms, and modifications may be made in the circuit arrangements and in the instrumentalities employed without departing from'the spirit set forth in the apstop members, spring means urging said stop members toward the path of operation of said selector mechanism, means normally retaining said stop members outside of said path, and electrically operated means for selectively rendering ineiective said retaining means to permit said spring means to project selected stop members into said path of operation of said selector mechof operation of said mechanism, electrically op- 6. In a `selective multi-record phonograph. the combination comprising a reciprocable selector mechanism, and an electrically operated means for selectively controlling said mechanism, said means comprising a plurality of 'electromagnetic` coils arranged in -a common plane, a movable core member for each oi' said coils, said core members -being mechanically biasedto tend-to y expel said members from said electrpmagnetic coi1s, a plurality` of reciprocable stop members, each arranged for operation in a. direction transverse with respect to the movement oi said selector mechanism and transverse with respect to the movement of said core members, each of said' stop members being biased toward the path of operation of said selector mechanism, each of said erated means for selectively rendering ineffective, said retaining means to permit selected stop members to project into said path of operation, Jand means actuated by said mechanism for restoring to position one of said stop members during each cycle of operation 4of said phonograph.

3. In a selectively operable multi-record automatic phonograph having a reciprocable selector mechanism, a selector control mechanism comprising a plurality of like independently slidable stops arranged in a row parallel to -the path of energizing said electromagnetically operated means to comrol the operation of said selector mechanism.

4. In a selective multi-record phonograph, the combination comprising a reciprocable selector mechanism for phonograph records, and means for-selectively controlling the operation of said` mechanism comprising a plurality of reciprocable stop members each biased so as to project into the path of operation of said selector mechanism whenever released, each stop member having a portion thereof engaged byv a reciprocable restraining member biased toward said stop member, electric means for each of said restraining members for withdraw-lng said restraining mem-V ber from engagement with said stop member, means for selectively controlling the energizationoi said electric means, and means carriedby said selector mechanism for restoring the position oi each released stop member.

5. In a selective multi-record phonograph, the

` combination comprising a reciprocable selector mechanism and means for selectively controlling the operationA thereof, said means comprising a plurality oi movable core solenoids arranged in two rows in a common plane, a plurality oi reciprocable stop members arranged between said rows of solenoids for operation transverse to the plane of said solenoids and transverse tp the path of stop members being provided with means engaged by one of said movable core members to retain said stop members outside of the path of operation of said selector mechanism, and means for selectively energizing said electromagnetic coilsv to control the operation of said selector mechanism.

'7. In a selective multi-record phonograph including a reciprocable selector mechanism for phonograph records, an electrically operated means for ,selectively controlling. said selector mechanism, comprising a plurality pi ,electromagnetic coils arranged in a plurality of rows in a common plane, a movable coreI member for each of said coils, each said core member being mechanically biased to tend to expel said core from its magnetic coil, a plurality of like reciprocable stop members each arranged -ior operation in a direction transversely with respect to vthe movement of said selector mechanism and transversely with respect to the movement ci said core memeach of said stop members being mechanically biased toward the path oi operation of said selector mechanism and being provided with means engaged by one of said movable core members to retain said stop members outside of the path of operation of said selector mechanism, means for selectively energizing said electromagnetic coils to control the operation o i said selector mechanism,

and means operable by said' selector mechanism operation of said mechanism, each of said stop members being biased toward .said selector mechanism and being restrained in position by a respective core of one oi said solenoids, each 'core of said solenoids being biased toward said stop ""members, and means for selectively energizing for restoring the position of one of said stop r mechanism of said phonograph, individual stop biasing means or urging said stops into said operating path, a plurality oi spring biased mem-Y bersior latching each of said stops in a position 'outside of said path, electromagnetically'operated means for each of said biased latching members vfor releasing said stop, and means for selectively energizing said electro-magnetically operated means to control the operation o! saidmechanism.

, 9. In a selective multi-record phonograph havv inga reciprocable selector mechanism, a controla' means for selectively controlling the operation of said reciprocable selector mechanism comprising a frame supporting a row o! independently-reciprocable stop members each biased for movement transversely oi said frame whenever released, each stop member having a portion thereof enl is gaged by. a reciprocable restraining' member biased toward said stop member, and electric means foreach oi said restraining members for withdrawing any selected restraining member for engagement with said stop member.

10. A control mechanism for the reciprocable selector mechanism of a selective multi-record phonograph comprising a` plurality oi' movable core solenoids arranged in two rows in a common plane, a plurality oireciprocable stop members arranged between said rows oi.' solenoids for operation transverse to' the plane of said solenoids and transverse to the path of operation of said reciprocable selector mechanism, each of said stop members being biased toward said path o1' operation and being restrained in position by a respective core o1' one of said solenoids. each core of said solenoids being biased toward said stop members, and means for selectively energizing each of said solenoids.

11. An electrically operable means for selecbers for biasing said members to tend to expel said core from its magnetic coil, a plurality of like reciprocable stop members each arranged for operation in a direction transversely with respect to said linear path of movement of said selector mechanism and transversely with respect to the tively controlling a reciprocable selector mecha.-

nism in a selective multi-record phonograph comprising a plurality of electro-magnetic c'oils arranged in a common plane, movable core member for each of said coils, means forbasing said core members away from said electro-magnetic coils, a plurality of reciprocable stop members each arranged for operation in a direction transverse with respect to the movement of said core core members to retain said stop members outside of said path oi operation, and means for movement of said core members and beingdocated in a row therebetween. means biasing each of said stop members toward the path oi operation oi said selector mechanism, and means provided on each ot said stop members for engagement by one of said movable core members to retain said stop members outside of the path of operation of said selector mechanism.

13. A control mechanism for the selector of a selective multi-record phonograph, comprising a plurality of stop members. means for mounting said stop members in alinear row for independent movement along parallel paths to and from positions of cooperable relationship with the selector, means for urging each said stop member to its position of cooperable relationship with the i selector, means for releasably latching each said stop member against movement by the last said means, -clectromagnetically operable means for each of the latching means. for operating the same to release said stop members, and means for energizing said electromagnetically operable selectively energizing said electro-magnetic coilsl whereby said electrically operated means will control the operation of the reciprocable selector mechanism.

12. An electrically operated means for selectively controlling a multi-record phonograph selector mechanism having a linear path of operation comprising a plurality of electro-mag- `said stop members to their positions of cooperable relationship with the selector.

14. In combinationin a selective, multi-record phonograph, a linearly reciprccable selector mechanism including a stop member projecting laterally therefrom, and linearly reclprocable therewith, a plurality of stops slidable in paths intersecting the path of the linearly reciprocable stop member, means for urging each said stop .into the path of saidstop member, means for releasably latching each of said stops out of the path oi said stop member, electromagnetically operatedmeans for each oi the latching means for operating the same to release said stops, and

means for energizing any number of said electro- Y magnetically operated means to selectively connetic coils arranged in a plurality ci rows in'a common plane, a movable core member for each of said coils. means for each of said core memtrol the movement oisaid stops into the path of said stop member.

LAWRENCE E. DETI'LE.

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