US2371491A - Selector mechanism for automatic phonographs - Google Patents

Description

Mardi 13, 19.45. T. M. wRlHT SELECTOR MECHANISM Fon AUTOMATIC PHoNoGRAPHs Original Filed Jan. l0, l1939 6 Sheets-Sheet 1 www Juvrzu MSR .www

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. www www `Mml11:'.,1945. 1M. wmm l 2,371,491 SELECTOR MECHANISM FORIAUTYOMATIC PHNOGRAPHS original Filed Jain. 1o, 1939 e sheets-sheet 2 March .13, 1945- l M. WRIGHT l 2,371,491

' SELECTOR'MECHANISM FQR AUTOMATIC PHONOGRAPHS Orginfal Filed Jan. 10, 19.39- 6 Sheets-Sheet 5 Marh .13, 1945. T. M. WRIGHTv SELECTOR MECHANISM FOR AUTOMATIC PHONOGRAPHS 6 S'heets-Sheei'I 5 Original Filed Jan. I0, 1939 l-nvenozj March 13, 1.945. r.-M. WRIGHT 2,371,491 SELECTOR MECHANISM Fo'R AUTOMATIC PHONOGRAPHS v Original Filed-Jan'. l0, 1959 1 6 Sheet-Sheet 6 Patented Mar. 13, 1945 PHONOGRAPHS Theodore M. Wright, North Tonawanda, N. Y., assgnor to The Rudolph Wurlitzer Company, North Tonawanda, N. Y., a'corporation of Ohio originai application January'lo, 1939, serial No.

250,252, no w Patent No. 2,298,447, dated Octobei 13, 1942.

Divided and this application March 20, 1942, Serial No. 435,489

Claims.

This invention` relates to certain new and useful improvements in selector mechanisms designed for use in connection with automatic, multi-record phonographs. i

It has for one of its objects to provide a phonograph selective mechanism which is so designed and constructed as to permit the patron to preselect a plurality of record programs in any predetermined order or sequence desired, whether such programs be on one side or the other of the record, and to-eiiect as well the selective repetition of any given record.`

Another object of the invention is to provide nism has been designed foruse with multi-record phonographs andthe like whereby a patron may pre-select in advance, or at any time Iduring the playing of the phonograph, any number of recordings desired, whether such recordings be on one side or the other of the records, or whether it be desired to repeat certain recordings. Furthermore, the electrical selector unit is so designed that the records may be played in any desired a positive, reliable and eicient electrical selector mechanism for selecting inv advance one or more records for play, such mechanism being designed to be multiand universally-selective and to predetermne the playing of the record-selections in sequence on one side or the other of therecords, or to repeat any selections desired:

Other features of the invention reside in the construction and arrangement of parts hereinafter described and particularly pcinted^out in the appendedA claim's.

This invention isa division of my copending application, Serial No. 250,252, tiled January 10,

In the accompanying drawings:

Figure 1 is a top plan view of my selector mechanism in operative association with a phonograph chassis. Figure 2 is an enlarged front elevation of the same. Figure 3 is an enlarged longitudinal section of the selector mechanism taken in the plane of line 3 3, Figure 1. larged fragmentary longitudinal section taken on line 4 6, Figure 2. Figure 5 is a transverse vertical section taken in the plane of line 5 5, Figure 2. Figure 6 is a similar section taken on line 6 6, Figure 2. Figure 7 is a transverse vertical section taken in the plane of line 1 1, Figure 3.`

Figure 4 is an ensequence,` that is, to play, say, record No. 3 on one side, to play record No. 5 on the opposite side, to play record No. 1 on one side twice in succession,etc. This mechanism is applicable, for example, to the record-changing mechanism of an automatic phonograph shown in my copending application, wherein the records are supported edgewise in a vertical magazine disposed at one side of the turntable for adjustment relative to v the turntable to-selective positions and adapted to be split` horizontally to provide an operating clearancefor the playing of the selected record,

the electrical connections of the selector mecha and swiveled record-gripping means releasably engageable with and for transferring a selected record from the magazine for playand tothe magazine after play and for turning the record to expose one side orthe other for play as predetermined by the selector mechanism.

In Figure- 1 I have shown the' general disposition of the selector assembly relative to the phonograph, the numeral 30 being the chassis or bed plate of the phonograph, 32 the electric motor for operating the record-changing mechanism, 34 the turntable, 61 the magazine-forming members guided on rods 65, 66 and between which the records are supported for selective movement to a position axially over the turntable, 12 the selective-governing rod for actuating the magazine to predetermined selective positions, |34 the vertically and' horizontally relatively to the turntable. The arresting movements of the selective governing rod 12 to predetermine the selective positioning of the magazine for playing a given record is controlled by a mechanism indicated generally by the numeral |29 andwhich may consist of a longitudinal row of stop elements |30 selectively projectable into the path of a stop dog |3| pivoted to a collar |32 secured to said rod 12. A1 spring |33 normally projects the dog into operative position and permits the dog to swing to a y receding position over a Aprojected 'stop element onV the return stroke of the; magazine. Oper-- ranged in a suitable casing 226 in which are y mounted a longitudinal row of suitably spacedv selector levers 221, each pivoted for verticallyswinging' movement on a common pivot shaft 228 fixed in the upper end of the casing and each movable from a normal neutral position to a forward position for pre-selecting a recording desired which is on one side of the record or to a rearwardposition forv preselecting 'a recording which `is on the other side'of the same record. As shown in Figure 5,` these levers project through corresponding slots 229 formed in the top wall o'f the casing and the end walls of these slots limit the movements of the levers to Vtheir respective selecting positions. These levers maybe identied in any suitable manner to indicate the record recordings borne by the phonograph, and as shown in Figure 1', rows of numbers or like designations 230 and 23| may-.be provided which are arranged in rows along the-front and rear edges of the slots' 223, the even numbers indicating the recordings on yone side of the records and the odd numbers indicating the recordings on the opposite sides of the records. At one end :of the casing a cancelling lever 232 isprovided for enabling the user to cancel any individual selectons controls thelplaying of one side of the record,

while the companion rowcontrols the playing of These buttons are supported radially in the peripheral wall of the opposite side of the record.

the drum for movement in a radial direction to 'and from a 'selective switch-closing position andA annular coil springs 235 may be seated in the drum adjoining the annular row of buttons to frictionally hold the buttons in one position or the other. The phonograph, for example, may be equipped with twenty records which make a repertoire of forty selections, and in this connection, twenty-selecting levers 221 are provided movable to one or the other of two selective positions to play one side or the other of a record and lincluded in each annular row of switch-controlled buttons 234 are forw of such buttons so that Airrespective of the angular or radial position of the drum at any given time, there is a companion push button-for operative action by a given selector` lever..l` Fixed to one end of this drum is aratchet wheel 23B having as many teeth cooperate with adjoining rows of switch-contro ling buttons 234, one arm acting on one or another of a registered button in agiven annular row for controlling the playing of one side of the i record and the companion arm acting on one or another of a registered button in the adjoining` annular row for controlling the playing of the other side of the same record. Each selector lever arm is pivotally connected by a pendant, slotted link 239 to a 'lateral extension 240 of a button-actuating plunger 24| guided for verticalmovement in upper and lower guide plates 242 secured at their ends to the casing 226, there being one of these plungers for each annular row of buttons. A spring 243 applied to each plunger normally urges it to an elevated non-selecting position... When the selected plunger is depressed,` it projects the alining switch-controlling button 234 to the position of the middle button shown in Figure 7. Disposed beneath and common to the several plunger-extensions 240, is a pawlactuating rod 244 attached at its ends to vertically-swinging arms 245 fulcrumed on a longitudinal shaft 246 supported at its end on the end walls of the casing 226, that arm adjoining the end of the selector drum 233 on which the ratchet wheel 236* is mounted having a depending drumactuating feed pawl 241 pivotd thereon at its free end and normally held in engagement with the ratchet wheel by a spring 248. Projecting.

from the other end of the pawl-carrying arm is lan extension 249 to which aspring 256 is connected for constantly urging the lever to rock in a direction to advance the drum counter-clockwise, viewing Figure 5, a distance of one tooth. A keeper pawl 25| normally engages the ratchet 236 to prevent its movementein a clockwise direc-` ysame time cause the plunger-extension 24B to .engage the pawl-actuating rod 244, rocking the latter downwardly about its fulcrum 246 against the resistance of the spring 250 to advance the pawl 241 idly downwardly relatively to theA engaging tooth of the ratchet wheel a distance of one tooth.. Whenthe user completes the selecting stroke and releases his grip on the selecting lever, the spring 250" then acts to move the paw1241 upwardly and advance the ratchet wheel and its selector drum a distance of one tooth, and during this movement the selector lever and intermediate connections are restored to their initial positions, the depressed switch-controlling' as there are switch-controlled buttons 234 in a given annular row, this ratchet wheelserving to successively-advance the drum a distance of one tooth for each selective movement of the selector levers. `'The means for so controlling the movement-of the drum from the selector levers is l ally-odset arms 231nand23l, respectively, which button 234, however, remaining in its selective governing position until restored by other means,

to be hereinafter described. With each movement of one" or more of the selector levers to selecting positions, the companion switch-controlling buttons are depressed and the drum-successively advanced a distance of one 4tooth for therewith during its advancing, selecting movements by a clutching of the depressed buttons 234 therewith, and having a plurality of companion, switch elements 252, 253 which are radially mounted between suitable frame pieces or plates 2-54 and 255, respectively, 'extending lengthwise of the drum and having sleeve-like journals V256 at their opposite ends which are rotatably mounted in the end walls of the casing 226, whereby theselector drum may be rotated independently of the switch assembly, and the vlatter in turn may be rotated jointly with the The switch eledrum at predetermined times. ments 252, 253, the latter one of which is movable relatively to the former to close and open the switch, are disposed side by side lengthwise within the selector drum and in the same com-l der of selection to engage and close the alined switch to establish a circuit for selectively governing the movement of the record magazine to its selective station of adjustment corresponding to that of the record selected. These several switches are normally, in an open position and are only selectively and individually closed when a companion depressed push button so closes it, theclosing of theswitch-in each case taking place by the depressed button contacting and moving the movable switch element 253 in contact with its companion element during the rotation of the selector drum 233 a distance of one ytooth of its ratchet 236, as imparted to it by the upstroke of the feed pawl 241,in the manner previously described. Simultaneously with this switch-closing movement,V the switch assembly is turned as a unit in a like direction, each leading push button always being in position to so advance the switch assembly for each tooth-distance advance ofthe selector drum. A coil spring 256- ling a recording, previously selected, but not yet f non-select position. The manual cancellation of a previously selected record is effected by the cancelling lever 232 which is pivotally mounted on the same shaft 228 to whichthe selecting levers 221 are pivoted, and pivotally connected to this cancelling lever is a pendant link 251 whose low/r end is joined to one arm of a bell crank lever 258 fixed on a shaft 259 suitably supported in the.

casing 226. Also vjoined to the same arm of this bell crank is a pawl 260 which is engageable with an annular-row of ratchet teeth 26| applied to the right hand end of lthe selector drum 233 and which, when the cancelling lever is moved to cancelling position shown by dotted lines in Figure 6, is adapted to turn the drum in a direction opposite to that imparted by the selector levers 221 and their companion feed pawls.241, to thereby restore the drum to the same position in which it-was previous to a position ei'ected by a given selecting operation'. In other words, a selected push button 234 is thereby moved in a direction away from a companion pair of switch elements 252, 253, so as to open theswitch'and cancel the selection. Connected to the other arm of the bell crank 258 is a link 262 which is operatively connected toa rock arm 263 arranged to engage a pin 264 projecting from the lower end .of the feed pawl 241 so that during a reversed rotation of the drum by the cancelling pawl 268 the feed pawl 241 is automatically released from operative engagement with its ratchet wheel 236 so as `not to interfere with the reversed cancelling movement of the drum in response to a movement of the cancelling leverV 232 to a cancelling position. the cancelling lever 232, Va spring 265 restores it andits associated parts to their initial position.

Simultaneously with the movement of the selector drum to a cancelling position in the manner just described, a means is provided for restoring the companion depressed selected button 234 to its initial non-selecting position. For this purpose a button-cancelling bar 266 is disposed lengthwise within the drum 233 in cooperative relation -with the inner ends of the upper central row of selector buttons, such ba`r being mounted for radial displacement into engagement with an alining depressed push button to restore it to its .7 initial non-selection position. This bar is supl ported at its ends on notched arms 261 and 268 for longitudinal displacement relative thereto and said bar has inclined cam faces 269 adjacent its ends and at the lower edges thereof, so that upon an endwise shifting of the cancelling bar 266 in j one direction or the other it is accordingly disend to the companion end of the adjoiningl vnotched-arm 268 and connectedat its upper end by a slotted joint to the ad-.ioining end of such bar. so that when said lever 210 is rocked in one direc'- tion or the other the. cancelling bar is accordingly displaced outwardly orV inwardly. A spring 21| normally urges the bar to its inward position. Connected to the bar-shifting lever 210 is a horizontally-swinging bell crank 212 which is connected by a link 213 with a crank arm 214 applied to the adjoining end of the shaft 259` on which the bell crank 258 is fixed. By this cginstruction,

when the cancelling lever 232 is moved to a cancelling position to accordingly rotate the drum in direction opposite to that effected during selection. motion is transmittedl to the shaft 259 and thence to the rock lever 210 to shift the cancelling bar longitudinally and effect its radial outward displacement by the'coaction of its cam faces 269 with the notched ends of its supporting arms 261 and 2 68. The outward displacement of the cancelling bar engages any Iselector buttons 2 34 in its path andI restores them to their nonselect ing positions. V v

The automatic cancelling or restoration of a given selector button 234, after it has performed its `record-selecting function, is controlled during the movement of the tone arm into playing en- When the user releases his grip on sagement with the selected record. Mounted on the switch-carrying plate 255 is a vertically-displaceable cancelling plate 215 joined 4thereto by screw and slot connections 216, 211 and engageable ,at its upper edge when displaced radially outwardly with an alined depressed push button 234. The vertical displacement of this cancelling plate is eiected by a pair of bell crank levers 218 fulcrumed on the lower end of the switch-carrying plate 255, one arm thereof being connected by tie links 219 with the cancelling plate and the other arm of each of said levers being connected by a link 280 disposed substantially axially of the selector drum 233 and including a swivelly-joined adjustable extension 28|, the latter being arranged exteriorly. of the selector drum and connected with a crank arm 282 xed on the lower end of an upright shaft 283 supported in a suitable bracket 284. At its upper end this shaft 283 has a crank arm 285 connected by a link 286 with the means for controlling the movement of the tone. arm to and from playing position. A spring 281 connected to the extension 281| of the link 280 serves constantly to urge the latter in a direction to retain the cancelling plate 215 in an inoperaconnection between the link 280 and its extension 28| permits such displacement without affecting the position of the extension v28| and the parts associated therewith. The manually-controlled cancelling bar 256, however, always assumes a position vertically below the selecting levers 211 being retained in that position'by its notched supporting arms 261 and 268, and the connection of the rock lever 210 to the adjoining lever 212 is disposed substantially axially of the selector drum.

The means for automatically controlling the selector unit |29 and its selective-controlling stop elements |30 to govern the sequence playing of the recordings selected in advance by the selector levers 221 is preferably4 constructed as.

follows:

Disposed in a longitudinal row 1n the selector assembly |29 are a plurality of individual, vertically-swinging, electrically-governed rocker arms 288 to which the selectively-projectable stop elements 30 are applied and which correspond in number to the records and the selector levers 221, each being governed by a companion selector lever. A.These rocker arms are fulcrumed on a common horizontal pivot-shaft 289 and eachv includes, in addition to its stop element |30 for arresting the magazine at the corresponding record-selecting station, a switch-controlling nger 290, an armature clement 29| and a cancelgoverning ringer 292. The finger 290 of each rocker arm controls the closing and opening of a switch 293, 294, the movable element 290 thereof being in the form of a yieldable blade and the fixed element being in the form of a contact post toward and from which the movable element is actuated to close or open a circuit in response to the selecting and cancelling movements imparted to the rocker arm in one direction or the other. These contact-posts 294 are attached to an insulating panel 295 and are adapted to be selectively bridged across a common longitudinal conductor stripv 29B, seated in said panel alongside such posts, by a bridge bar 291 fixed to the collar |32 of the magazine-governing rod 12. A spring 298 acts on this bridge bar for urging it in contact with the parts 294 and'296'.

Disposed in operative relation to the armature element 29| of each rocker arm 288 is an electromagnet 299, there being ten of such magnets disposed in a longitudinal row in the upper position and at one side of the selector unit |29 for cooperation with certain.of said rocker arms, while the remaining ten magnets are disposed in parallel relation tothe first row but at the lower and opposite side of the selector unit for' cooperationv with alternately-arranged rocker arms, whereby, when one or another of the magnets is energized, its companion amature 29| is attracted and the corresponding rocker arm is moved in a clockwise direction, viewing Figures l0 and ll, to present its stop element |30 into ,the path of travel of the stop dog |3| and arrest the magazine at the selected station. Each electro-magnet 299 'is connected by a wire 300 to adjoining pairs in common of the companion seiector-lever-controlled switch 252, 253, so that when a selector lever 221 is moved to a position to select one side or the other of the companion record, the corresponding magnet will be energized by one or the other of the aiected pair of push buttons 234 to project the corresponding stop lug |30 into position for arresting the magazine at such station where the record selected will be in axial transverse alinement with the turntable.

The cancel-governing finger 292 of each selectively-set rocker arm 288 is adapted, at a predetermined time after the completion of a selective operation, to be tripped by a verticallyswinging tappet bar 30| disposed alongside and common to the several rocker-fingers 292 so as torestore such rocker arm toits initial or nonselective position. This tappet bar has a crank arm 302 at one end thereof which is connected to one end of a horizontally-swinging lever 303,

` the other end of the latter being connected to the link 28B of the crank arm 285 which operates the cancelling plate .215 in a direction to cancel a given push button 234. By this construction. the movement of the tone arm to play position not only cancels the selected button but at the same .time effects the restoration of the companion rocker arm 288 to its initial position, the tappet bar being rocked in a direction to turn such rocker arm to that position.

The electrical :circuit for automatically controlling the operation of the phonograph upon the selection of one or more recordings is shown in Figure 13 and is constructed and arranged as follows:

The motor 32 which drives the various movable parts of the ,phonograph is connected by wires 305 and 300 to a source of power and includes a normally-open main switch 301 adapted to be A closed by a relay 308 whichis in turn rendered operative or energized to close the main switch I by one or the other of two'switches 309 or 3|0 included in the circuit of such relay. This relay circuitderives its power from a transformer 81| and includes the wires 3|2, 3|3 to which the switches 309, 3|0 are connected in parallel. The switch 309 is controlled from the electrical selector unit mounted in the casing 226 and is adapted to be moved from a normally open position, when the phonograph is at rest, to a clo-sed position in response to the advancing movements of the switch assembly 252-255 and associated parts imparted to it by the selecting levers 221 and push buttons 234, and remains vclosed until the last record of a selected group has been brought into play, at which time the return movement of the switch assembly is such as to again open such switch. To accomplish these ends, this switch 309 is controlled by a tappet arm 3I4 radially mounted on the outer-end of one of the journals 256 of the switch assembly, such arm having its outer end in the path of the movable element of said switch to normally hold it open` while upon the turning movement of the switch assembly to sequence selecting positions, as called for by the selecting levers 226 operated, the tappet arm recedes from the movableyieldable element of the switch 309 and causes it to cle-se by spring pressure. The companion switch 3 I 0 is controlled by a part of the record-changing mechanism so as to be closed during the playing-period of a record and automatically opened at a predetermined time, as when a played record 'has been restored to its initial position in the record-maga- I the phonograph will then stop, because at such time the companion selective-controlled switch terminal of the transformer, thereby completing the circuit established by a depressed selector lever 226. When the odd relay 3I9 is energized to play one side of a record, it closes pairs of relay- contacts 3,25 and 326 which control the selected side of the record to be played. Included in the circuit of the pair of contacts 325 is a switch having two sets of contacts 321 and 328 which is adapted to be closed at a predetermined time by a master cam( 50 through the medium of a projection 329 formed thereon. Leading from the set of switch contacts 321 are wires 33 0 and 33 I ,the wire 330 being connected to one terminal of the transformer 3| I, and the companion wire 33| being connected to one of the relay-contacts 325 of each relay 3 I 9 and 32 I, the companion contacts thereof being connected by wires 332 and 333, respectively, with the companion odd and even-governing coils of a double-acting solenoid 204, which selectively governs the shifting of the swiveled record-receiving bails to present one side or the other of the record for play, the other end of each coil thereof being connected to the 309 is also opened. However, should other records be registered for play, the motor circuit will remain closed through such companion switch 309, which, under such conditions, is still closed, and remains closed until the last record of a selected group has been positioned for play, at which vtime said switchis automatically opened.

The circuit including the electrornagnets 299 for actuating the rocker arms 288 to project their stopelements |30 into the path of the magazine stop dog |3| to arrest the magazine at the selected record stations consists of the selector lever and push button controlled switch elements 252, 253,'each of the elements 253 being connected by the companion wire 300 to one end of the coil of the companion electromagnet. The otherl end of this coil is connected to a feed wire 3 I5, common to the several electromagnets, which is connected to the terminal of a normally closed switch 3 I 6, the other terminal thereof 'being connected by a branch wire 3 I1 to the wire 3I 2 leading to one terminal of the transformer 3| I. This circuit is then completed, .depending on whether a given selector 'lever 226 is-pushed forwardly or backwardly to play an even-numbered recording,

that is, the recording on one side or the other of the selected record, through the closing of the companion pair of switch elements 252, .253 by `the respective push button 234 which was de pressed for selection. One of ,the switch elements 252 of a pair, controlled by one or the other selected record, While thecompanion switch ele. ment of a given pair is connected to a like common wire 320 to a similar relay 32| for 'governing the playing of the even-numbered selections or the opposite side of a selected record. Each of these relays is connected to a wire 322 which wires 323 and 324 leading tothe other terminal of the transformer. Thus, when a given selector lever 226 is moved to a select position, say, to play the odd-numbered side of that record, the

companion switches 252 and 253 are closed byv theaffected button 234 to, rst, set the magazine at the record-selecting station in the manner' heretofore described, and, secondly, to energize the companion odd relay 3I9 to close the contacts 325 and 326 thereof and accordingly energize the companion odd coil of the solenoid 204 to 'shift its plunger 205 in a direction to initiate the swiveling movements of the record-hails or grippers |36 ina direction to present the odd-numbered side of the record for play. Reversely, shouldA the even-numbered side be selected, the even coil of solenoid 204 is .correspondingly rendered .operative to elect a swiveling of the grippers to present such side of the record for play. It should be stated here, however, that the circuit of the solenoid 204 for governing the playing of one side or the other of the record is not completed until the projection 329 on the master cam 50 has reached a radial -position for closing the switch contacts 321, 328.

Leading from the set of switch contacts 328 are wires 334 and 335, the wire 334 being conord-repeating coil 2|58L of a double-acting solenoid 2|5, which functions to control the master cam 50 and the record changer mechanism in selectively bringing a record to and from play position.4 In a selected position, the bar 2'96 is con- .nected across the companion post 294 by the leads through e wire 323 and au te the other u bridge-bar 291 to complete the circuit through the coil 2I5a governed by the switch-contacts 328. f

This circuit emanates from the transformer 3|| through wire 331 to wire 330 and contacts 321 and then through wire 33| to thecoil 2I5a and through wire 335 to contacts 328 to wires 334, 336 and to conductor bar 296, bridge bar 291 and corresponding terminal post 294 and back through wire 324 to the other terminal of the transformer.

Operatively associated with the double-acting solenoid actuated lever 206, which governs the' playing of one side or the other of the selected record, are switches 338 and 333.4he switch 339 being closed by said lever 206 when the odd-numberedsideof the'record has been selected. at which time the otherswitch 338 is open and vice versa. Dne set of companion elements of these 'also connected to wire 331.

Associated with the tone arm, for initiating the during the playing ofthe record. If, after playing it, that record is to be repeated, then. on the initial clockwise movement of the cam 50, the cam-projection 329 closes the switch contacts 34 I', 342 which results in the companion coil of the double-acting solenoid 204, which was previously energized, to simply be energized again, while the coil 2|5a is energized to cause lthe cam to turn in a counter-clockwise direction. If the same select'ed record is to be then played on the opposite side, the initial clockwise movement of` the cam closes the switches 34|, 342 and causes the circuit including the other coil of the double-acting solenoid 204 to be established, but at that time the record-swiveling control is still in its previously set position and the solenoid is not capable of K responding to its energization. Also, atv this' time return of a record to the magazine after play, is

a. switch including a fixed contact 343 and a movable contact 344 controlled by a tappet arm 345 movable with the tone arm, the movable contact Vbeing connected by a wire 346 with one end of the cancel-coil 2|5b of the double-acting solenoid 2 l5,

VV'while the other end ofsaid coil is connected by a and is moved to open position for that purpose at a predetermined time by the tone arm moving mechanism.

In the at rest position of the phonograph, the

- master cam is clutched to turn in a clockwise direction. When a record is selected and the motor is started by the ciosing of the switch 309, the master cam momentarily revolves in a clockwise direction and then in a counter-clockwise direction, in which direction the cam rotates during the selective-transferring and positioning movements of a record for play. During a single revolution of the master cam in a counter-clockwise direction, the record magazine is shiftedto record-selecting position, the magazine is split horizontally to provide for turntable clearance,

the record is turned from a vertical to a horizontal playing position in one direction or the other depending on which side the selected recording is arranged, the turntable is lifted to the elevation or the record, and the tone arm is swung in for play, ythe counter-clockwise movement of the master cam is arrested so that the cam is at rest during the playing of the record. When the playing of the record is completed, the tone arm closes the switch 343, 344 to energize the canceiling coil 2|5b of the solenoid 2 i 5, resulting in a clutching operation to rotate the master cam in a clockwise direction for restoring the parts to their initial position with the played record returned to the magazine.

When the projection 329 of the master cam contacts the switches 321, 328 during its counterclockwise movement, it momentarily closes them by an impulse contact to energize one or the other of the coils of the double-acting solenoid 204 so as to govern the positioning of the record for properly playing its selected side. Thereafter, the cam continues in its counter-clockwise direction and while the projection 329 encounters the switches 34|, 342, no further effect is produced. When the cam cycle has been completed, the cam is stopped and remains in such position the coil 2 5a is not energized due to the fact that the circuit is broken at the switch 338, so that the cam continues in its clockwise direction until its projection 329 encounters the switches 321, 328,

selector drum having a plurality of annular rows of switch-governing push buttonsI thereon, a plurality of selector elements disposed in operative relation to said push buttons for actuating them to a selective-governing position, means operatively connected to and initiated by the movement of a lselector element to a selecting position for advancing said drum a predetermined distance, a rotatable switch assembly rotatable with and housed in said drum including a longitudinal row of switches companion to and alined with said rows of push buttons for successive'actuation by selected buttons in predetermined sequence to switch-closing position during an advance movement of said drum, means mounted on and rotat' able with thev switch assembly for restoring a l pre-selected switch-governing button to its nonselective position, a manual selection-cancelling member, a-cancelling'bar ilxedly mounted with respect to the drum for movement to and from abutton-cancelling position. and means initiated by said cancelling member and operatively connested to said cancelling bar and the drum for simultaneously rendering the formenoperative to a button-cancelling position and for turning .the drum in the opposite direction alike distance to bring a, selected button out of switch-closingcontact when it is desired to cancely a selection.

2. A selector mechanism, comprising-,a rotatable selector drum having a plurality of annular rows of switch-governing push buttons thereon, a plurality of selector elements disposed in operative relation to said push buttons for actu- A ating them to a selective-governing position, meansoperatively connected to and initiated by the movement of a` selector element-to a selecting position for advancing said drum a predetermined distance, a rotatable switch assembly housed in said drum including a longitudinal row of switches companion to and alined with said rows of push buttons for successive actuation by selected buttons in predetermined sequence to switch-,closing position during an advance movement of said drum, means operatively connected to the selector drum for turning it in the oppoy site direction a like distance rto bring a selectedl button out of switch-closing contact when it is desired to cancel such selection and including a manual selection-cancellingl member for actu' ating the same, and means operatively connected to saidcancelling member and in the path ofv a pre-selected switch-governing button for restoring it to its non-select position. 3. A selector mechanism, comprising a rotatable selector drum having aplurality of annular rows of switch-governing push buttons thereon, a plurality of selector elements disposed in a longitudinal row of switches'companion to and alined with said rows of push buttons for successive actuation by selected buttons in predetermined sequence to switch-closing position during an advance movement of said drum, means operatively connected to the selector drum for turning it in the opposite direction a like dising buttons disposed .side by side lengthwise of said drum and selectively projectable to selected positions, a plurality of manually-actuated selector elements mounted on said casing in correconnections between said selector Velements and lation to said buttons for movement to and from a selective-governing position, ratchet feed means for advancing said drum intermittently to selective positions, a second ratchet means for causing the return of said drum intermittently subsequently to its advance to a selective position,

y said buttons for projecting theA latter to a selective vposition upon the movement of companion selector elements to select positions, connections between said selector elements and said first-named ratchet feed means for actuating the latter to advance the drum a selective step upon the movement of a given selector element'from'- a selective position to a non-selective position, a-

manual selection-cancelling member, means operatively connecting said member with said second ratchet means for rendering the latter operative to cause the return of said drum subsequent tance to bring a selected button out of switch- '-j closing contact when it is desired to cancel such selection and including a cancelling bar xedly mounted with respect to the drum and the switch assembly for radial displacement to and from a cancelling position in the path of a pre-selected switch-governing button, means connected to said. bar for normally urging it to its non-cancellingv ated selector elements mounted on said casing in correlation to said .buttons for movementvto and from a selective-governing position, means ment to a selective position, actuating plungers connected to said selector elements forvnormal-l ly urging them from a selective toa non-selective position, connections betweensaid selector elements and said buttons for projecting the latter` to a selective position upon the movement ating it to a button-restoring position, and connections between said selector elements and theA selector drum for advancing it a selective step upon the movement` of a given selector element from a selective position to a non-selective position.

5. A selector mechanism Afor automatic phonographs and the like, comprising a casing, a selector druin journaled in said casing for movement in step by step fashion to predetermined selective positions, annular rows of selector-governto its respective, selective advance movements one step for each actuation of the cancelling member,

and means operative by-said cancelling member for each actuation thereof for restoring buttons in successive rows to their non-selective posif6. A selectormechanism for automatic phonographs and the like, comprising a casing, a selector drum journaled in said casing for movement in step by step fashion to predetermined selective positions, annular rows of selector-governing buttons disposed side by side `llengthwise of said .drum and selectively projectable to selected positions, alplurality of manually-actuated selector elements mounted on said casing in correlation to a pair of adjoining rows of said buttons for movement to one or the other of two selective positions, means for restoring said selector elements to their-V normal position after movedisposed in alining relation with said rows of buttons, operative connections between each of said selector elements and adjoining plungers for projecting 'an alined plunger and its companion button to a selective position in response to a movement of a given selector'element to a corresponding selective position, and connections between said selector elements and the selector drum for advancing it a selective step upon the movement of a given selector element from its selective position to its restored normal position.

, 7. .In a device of the character described, a casing, a selector drum journaled in' said casing for movement in step by step fashion to different selective positions, a plurality of annular rows of selector-governing buttons guided in the periphery of said drum for projection to and from selective position, a plurality of manually-actuated selector elements mounted in said casingin correlationto said buttons for movement to and from a selective-governing position, normally-retractable plungersalined With said buttons and operatively connected to-the compang ion selector elements for actuation thereby to a button-depressing position, a ratchet feed means for advancing said drum intermittently to selective positions, an operative connection between said ratchet feed means and said plungers, and common to the latter, for causing the actuation of said. feed means as an incident to the movev ment of the selector elements to a selective-governingposition, a radially-displaceable member mounted lengthwise within said drum and en` gageable with one or another of the selectivelypositioned buttons for restoring them to their tons to a switch-closing position during an adinitial positionl and means operatively connected to said displaceable member for actuating it to and from its button-restoring position.

8. In a device oi the character described, a casing, a selector drum journaled in said casing for movement in step by step fashion to different selective positions, a plurality of annular rows of selector-governing buttons guided in the periphery oi said drum for projection to and from selective positions, meansfor selectively projecting said buttons to a selective-governing position, means for advancing said drum a given distance in response to the projection of a button to a selectively-projected position, a radially displaceable cancelling plate disposed lengthwise within restoring position when said lever is moved to its cancelling position.

9. In a device oi the character described, a casing, a selector drum journaled in said casing for movement in step by step fashion to different selective positions, a plurality of annular rows of selector-governing buttons guided in the periphery of said drum for projection to and from selective positions, means for selectively projecting said buttons to a selective-governing position, means for advancing said drum in step by step fashion in response to the projection of a button to a selectively-projected position, a rotatable switch assembly housed within said drum including a longitudinal row of switches in bridging relation t0 and for alining contacting engagement with said buttons, when in a selective projected position, for successive actuation by said but- Vance movementof the drum, the depressed buttons, acting as clutch elements when contacting companion switches to advance the switch as sembly jointly withthe advancingmovement of the drum, and means operatively connected to said switch assembly for yieldingly resisting its advancing movement.

l10. In a device of the character described, a casing, a selector drum journaled in said casing for movement in step by step fashion to diierent selective positions, a plurality of annular rows of selector-governing buttons guided in the periphery of said drum for projection to and from selective positions, means for selectively projecting said buttons to a selective-governing position, means for advancing said drum in step by step fashionin response to the projection of a button to a selectively-projected position, a rotatable switch assembly housed within said drum including a longitudinal row of switches in bridging relation to and for alining contacting engagement with said buttons, when ina selective projected position, for successive actuation by said buttons to a switch-closing position during an advance movement of 'the drum, the depressed buttons acting as clutch elements when contacting companion switches to advance the switch assembly jointly with the advancing movement of the drum, means operatively connected tosaid switch assembly for yieldingly resisting its ad l vancing movement, a radially-displaceable member mounted lengthwise within said drum alongside said switch assembly and engageable endf wise with one or another of the selectively-posil tioned buttons for restoring them to their initial

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