US2323365A - Automatic phonograph - Google Patents

Description

y 1943- E, F. ANDREWS 2,323,365

AUTOMATIC PHONOGRAPH 12 Sheets-Sheet 1 Filed July 18, 1940 July 6, 1943. E. F. ANDREWS AUTOMATIC PHONO'GRAPH Filed July 18, 1940 12 Sheets-Sheet 2 July 6, 1943. E. F. ANDREWS AUTOMATIC PHONOGRAPH Filed July 18, 1940 12 Sheets-Sheet 4 wmfmw @QWN m Ww M @122?? y 1943- E. F. ANDREWS 2,323,365

AUTOMATIC PHONOGRAPH Filed July 18, 1940 12 Sheets-Sheet 5 VIII/I/I/II/IIIIIIIIIII/I/II/I/ 'July 6, 1943. E. F. ANbREWS ,3 3,

AUTOMATIC PHONOGRAPH Filed July 18, 1940 12 Sheets-Sheet 6 July 6, 1943. E. F. ANDREWS AUTOMATIC PHONOGRAPH Filed July 18, 1940 -l2 Sheets-Sheet '7 July 6, 1943- E. F. ANDREWS.

I AUTOMATIC PHONOGRAPH Filed July 18, 1940 12 Sheets-Sheet 8 avdj lwea/a July 6,1943. F, A D E-NS 2,323,365

AUTOMATIC \PHONOGRAPH Filed July 18, 1940 12 Sheets-Sheet 9 July 6, 1943. E. F. ANDREWS AUTOMATIC PHQNOGRAPH Filed July 18, 1940 12 Sheets-Sheet 10 July 6, 1943.

E. F. ANDREWS AUTOMATIC PHONOGRAPH Filed July 18, 1940 12 Sheets- Sheet 11 July 6, 1943.

E. F. ANDREWS AUTOMATIC PHONOGRAPH Filed July 18, 1940 f 12 Sheets-Sheet l2 ,zzbgw' Patented July 5,

UNITED STATES PATENT OFFICE atrromr rz ifjnoemrn Edward F. Andrews, Chicago, Ill.

Application July 18, 1940, Serial No. 346,105

60 Claims.

This invention relates to automatic phonographs, and more particularly to phonographs of the same general type as those described and claimed in my co-pending applications Serial No. 180,752, filed December 20, 1937 (Patent No. 2,281,547), and Serial No.-214,'310-, filed June 1'7, 1938 (Patent No. 2,281,548) and to phonograph selector mechanism similar to that disclosed and claimed in my co-pending application SerialNo. 332,175, filed April 29, 1940.

This general type of phonograph can be readily adapted forlplaying any desired number of records, even including the accommodation of a very large number of records in its magazine, and only very few and very simple additional parts are required per additional record accommodated.

In this general type of phonograph, the record is removed from the magazine onto rotatable record supporting means which supports and rotates the record with the recorded surfaces on both sides exposed. The record supporting means may be driven in opposite directions for the playing of opposite sides of the record supported thereon.

One of the objects of the invention is to provide a player arm adapted to operate on either side of the record playing position, said player arm being slidably mounted for movement to either side of said position;

A further object of the invention is to provide a player arm operable on either side of the record playing position and adapted to provide a needle point directed toward said record playing position from either side thereof A further object of the invention is to provide a phonograph of this typ in which the magazine, on the one hand, and the record supporting means andplayer arm on the other, are arranged for relative movement, the rotation of of the player arm being co-related so that one side of the records is played during a period in which the relative movement is in one direction,"

the record supporting means and the position A further object of the invention is to provide ina phonograph of this general type a'player arm adapted to be moved bodily from one side to the other of record playing position, and common means for efiecting the movement oi the player arm away from a record being played on either side of the playing position; g

A turther object of the invention is to provide a player arm system comprising a 'frame on which the player arm is shiitably mounted, and means for counterbalancing the frame and player arm about their respective axes in all positions of the player arm, and providing resilient means'for causing the needle to press upon the record;

A further object of the invention is to provide an improved drive for. the operation of the record supporting means and the relative movement between the supporting means and the magazine;

A further object of the invention is to provide, in a phonograph of this type improved drive means for record supporting members. and for record changing cam mechanism, and for effecting said relative movement, and having improved means whereby the cam means and the means eilecting said relative movement are operated alternately; 4

A further object of the invention is to provide a shifting player arm adapted to be operated by an energized spring; I

A further object of the invention is to provide a phonograph of this type employing two player arms and improved means for rendering said player arms effective alternately for playing opposite sides of records;

A further object of the invention is to provide a novel double-pointed needle;

A further object of the invention is to provide an improved pick-up means with two needle .points projecting outwardly in opposite directions therefrom;

A further object of the invention is to provide an improved pickup, thin ina direction perpendicular to the plane of the record being played, with the two needle points of a double pointed needle projecting diagonally outwardly in either direction from the thin dimension of said pickp;

A further object of the invention is to provide an improved pickup means with two needle points projecting outwardly in opposite directions therefrom, and means for moving said pickup to a position in which one needlepoint -makes playing contact with one race of a recor to be played, and to a position in which the other point makes playing contact with the other face of a record to be played;

A further object of the invention is to provide means for resiliently biasing the pickup means toward the center of the record during either direction of rotation of the turntable;

A further object of the invention is to provide an extensible torque transmitting connection between the motor on the base and the record supporting means and carriage moving means on the carriage;

A further object of the invention is to provide a pickup capable of occupying one position for playing one side of a record and another position for playing the other side of a record, and in which the same motion effects the return of the pickup from the end of therecord to initial playing position in either of the two said positions;

A further object of the invention is to provide an improved player arm, means for moving it to opposite sides. of a playing position, and a, pair of biasing means rendered effective alternately when the player arm is shifted'to bias the player arm towards record playing position;

A further object of the invention is to provide a phonograph of this type comprising a, stationary magazine and a playing unit movable along the magazine'in opposite directions, the playing unit.

comprisinga player arm and record supporting and rotating means, the player arm and record supporting and rotating means being co-related to cooperate to play one side of the records when the player unit is moving in one direction, and

the other side of the records when the player unit /in which Fig. 1 is a plan view, the rear or record magazine end' being partly broken away and with no record in playing position better to illustrate other details, of a phonograph embodying my invention;

Fig. 2 is a sectional elevational view thereof,

the section being taken on the line 2-2 of Fig. 1. i

In this view a record is shown on the movable carriage or player unit;

Fig. 3 is a sectional elevation of the phonograph, the section being taken on the broken line 3-3 of Fi 1;

Fig. 4 is an elevational view of the phonograph, the frame being shown in section, taken on the line 4-4 of Fig. 1. This view also illustrates diagrammatically the electrical circuits of the apparatus;

Fig. 4A is a sectional detail view of a portion of the turntable drive, the section being taken on the line lA-lA of Fig. 4;

Fig. 5 is a sectional detail view of a portion of the drive between the motor and movable player unit, the section being taken on the line 5-5 of Fig. 4;

Fig. 6 is a sectional detail view, the section being taken on the line 6-6 of Fig. 5;

asaasea l Fig. 7 is a sectional detail view, the section being taken on the line l-l of Fig. 5;

Fig. 8 is an enlarged sectional detail view of the turntable and camshaft drive shaft H6 and associated elements, the 'view being taken on the line 88 of Fig. 4;

Fig. 9 is a fragmentary sectional detail view showing a clutch mechanism for driving the, player unit, the section being taken on the line 9-9 of Fig. 2; a

Fig. 10 is a sectional detail view, the section being taken on the line Ill-l0 of Fig. 9;

Fig. 11 is a sectional detail view, the section being taken on the line Ii -ll of Fig. 9;

Fig. 12 is a fragmentary sectional elevational view through the magazine and illustrating a portion of the record transfer mechanism and the record selector mechanism, the section being taken on the line l2--I2 of Fig. 1;

Fig. 13 is a sectional detail view of the player arm shifting mechanism when the player unit is moving toward the left as viewed in Figure 1 and to the right as viewed in Figure 13, the section being taken on the line .I3'-l3 of Fig. 2;

Fig. 14 is a view similar to Fig. 13, showing the mechanism when the player unit is at the limit of its movement toward the right as viewed in Figure 14 and about to move to the left;

Fig. 15 is a sectional detail view illustrating details of the player arm latching mechanism,

the section being taken on the line lii-l5 of Fig. 14;

Fig. 16 is a fragmentary sectional elevation through the turntable shaft and record clamping and centering mechanism with a record clamped and centered, the view being taken on the line Fig. 17 is a fragmentary sectional view showing the record clamping and centering mechanism when separated;

Fig. 1e iaa' view similar to Fig. 17, showing the manner in which the record clamping and centering members approach during the clamping of a record thereby;

Fig. 19 isa sectional elevation of the phonograph, the section being taken on the broken line |9-I9 of Fig. .1, the view illustrating, among other things, the camshaft clutch and its associated control;

Fig. 20 is a sectional detail view taken on the same plane as Fig. 19, showing thb camshaft clutch dog I86 in engaged relation to effect the driving of the camshaft after a record has been P yed;

Fig. 21 is a view similar to Fig. 20, showing the camshaft clutch dog I66 engaged by clog clutch release member I12 after the played record has been returned and the drive of the, carriage released to permit the movement of the movable carriage into alignment with the record next to be played;

Fig. 22 is a diagrammatic view showing. the relationship of the control leverll3, carrying the release member I12, and a-carriage drive clutch control member H8, which members are on the inner and outer sides of the frame member 94;

Fig. 23 is a fragmentary sectional elevation taken on the line 23 23 of Fig..22, the frame member 94 being shown in section;

Fig. 24 is a sectional elevation similar to Fig. 20, certain elements being omitted to show the mechanism for moving the record out of the magazine, raising the player arm out of engagement with the record, and swinging the player arm back to initial position;

Fig. 25 is a fragmentary sectional plan view of the mechanism shown in Fig. 24 (except for.

the cam I62 and camshaft I63), the section be-v ing taken on the line 25-25 of Fig. 19;

Fig.- 26 is a fragmentary elevatlonal view of the lower portion of the player arm in the mechanism whereby it is supported, certain parts of the mechanism being omitted;

Fig. 27 is a sectional detail view through the cam shaft assembly, the section being taken on the line 21-21 of Fig. 3;

Fig. 28 is a sectional plan detail of the motor reversing switch, the section being taken on the linen-28 of Fig. 2;

Fig. 29 is'a sectional detail view through the player arm adjacent its pivotal support and illustrating detailsof the resilient mounting for the arm;

Fig. 30 is a fragmentary elevation of a modifled playerarm frame and shifting mechanism;

Fig. 31 is a sectional detail, the section being v taken on the line 3|-3| of Fig. 30 and illustrating a modified form of reversing switch and its operating mechanism;

, Fig. 32 is an elevation of the player arm mounting mechanism, as .viewed from the left' of Fig. 30;

Fig. 33 is an elevational viewsimilar to Fig. 32, showing the player arm in position to play the opposite side of a record from that shown in Fig. 32;

Fig. 34 is a perspective view of a'player arm asaaecs rack 49, which is securely bolted to the rail formation 45, as best seen in Fig. 2. The motor 4| has secured to each end an integral V structure 66 which comprises a hub portion in'axial alignment with the motor shaft 52 which extends freely through one of the hub portions, as

best shown in Fig. 1 wherein but one of the structures is illustrated because of the limited space available. The hub portions 5| are connected to resilientmembers 63 which extend downwardly and outwardly in radial relation to the shaft 52, as best seen in Fig. .4. The resili ent members 53 are anchored to blocks 54 which are rigidly mounted on the base 48. The resilient members 53, located at 'each end of the motor, provide a resilient mounting therefor. The motor shaft 52 is coupled to a shaft 55, the major portion of which is of substantially reduced cross-sectional area, as best shown in Fig. 1 at 56. This portion of the shaft is round in cross-section and is so small that it is sumsupporting and shifting cradle employed in the structure shown in Figs. 30, 32, and 33;

Fig. 35 is a fragmentary diagrammatic view showing the manner in which two pickups may be mounted on the player arm instead of the single pickup, as shown in previously illustrated embodiment;

Fig. 36 is an elevational view of a player arm structure comprising two separate player arms; and

Fig. 37 is a fragmentary elevational [view of the lower part of the structure shown in Fig. 36, the structure being viewed from the right in that figure,

Certain features of the apparatus illustrated in the above referred to drawings and described hereinafter are disclosed and claimed in the application of Olgierd Gierwiatowsky, application Serial No. 441,624, filed May 4, 1942. These features include a record transfer mechanism wherein the transfer of records from one position to another are effected by a single record edge engaging transfer 'arm, the construction whereby the said arm is actuated from a cam,

and the arrangement for centering and clamping a record in playing position.

Referring to the drawings, the reference numeral 48 designates a base which may consist of an integral casting which provides a support for a motor 4| and a record magazine 42. The base comprises six downwardly projecting legs 43 (only four of which are shown in dotted lines in Fig. 1) whereby the machine may be supupon which the movable unit 48 is supported.

The rail formation 45 is recessed to receive a.

.ciently resilient to serve in place of universal Joints. A small piece of flexible shafting may also be employedat 56. The end of the shaft 55 remote from the motor, which portion of the shaft is indicated by the reference numeral 51, is provided with bearings in abracket 58, which is mounted on a platemember 59, rigidly bolted to the base 48. Between the two bearing portions of the bracket 58, the shaft 51 freely supports a helical pinion 68, and has rigidly mounted thereon a disc 6|. The disc 6| carries a pin 62 whichis directed towards the pinion 66. This pin serves as an anchorage for a spring clutch member 63, several turns of which embrace a cylindricalhub member64, which is integral with the pinion 60. The spring clutch member 63 is arranged so that the drive of the motor tends to release the spring clutch member. Thus,'in normal operation of the machine, the motor will drive the mechanism, but if, for

' any reason, the mechanism becomes overloaded,

the spring clutch member 63 will slip and the rotate without driving the pinion 60.

The pinion 66 meshes with which is rigidly mounted on a shaft; 66 (Figs. 4 and-5). The shaft 66 is arranged in eccentric relation to the gear 65 and it is surrounded by an eccentric sleeve 61, which is adapted to be rigidly secured to the shaft.66. the outer end of the haft 66 is provided with a reduced threaded end 66 .which is adapted to receive 'a nut 69. A washer 10 bears against the outer end ofthe sleeve 61, and a lock washer 1| is interposed between the nut 69 and the Washer 16. It will readily be understood with reference to Fig. 5 that by merely tightening the nut 69, the sleeve 61 may be immovably secured to the shaft 66. Thesleeve 61 is provided near its outer end with a flange 12, which serves to hold the the helical gear 65,

assembly in an elongated bearing 13 mounted on the plate member 59 (see Fig. 4). The outer end of the sleeve 61, that is, the portion beyond the flange 12, is provided with flat faces 14 (Fig. "1) whereby the sleeve 61 may be rotated relative to the shaft 66 so as to provid any desired degree of eccentricity between, the outer surface of the sleeve 61 and the gear 65. When such an adjustment is made. the nut 69 is of course loosened, and after the desired adJustment is made, the nut 69 is tightened so that the gear 65 is provided with a definite desired degree of eccentricity relative to the bearing 13. The purpose Of this eccentricity will be hereinafter more fully explained.

For this purpose,

of the shaft 88 and the eccentricity of the sleeve 51 should be very closely the same so that in at least one position of the sleeve 81 on the shaft 88, the outer surface of the sleeve 81 may be in concentric relation to the axis of the gear wheel 85. r

A splined shaft 15 is secured to the gear 85 so as to extend axially therefrom away from the shaft 88. This splined shaft 15 extends inwardly of the machine over the rack 48 (Figs. 1, 2 and 3). Its extremity adjacent the gear wheel .85 is nonrotatably received in a disc 15, with which it has a splined connection (Fig. 5). The splined disc 18 is held to the gear 85 by means of an annular member 11, which is mounted on the gear 85 by means of screws 18. The annular member 11 is provided with an inner flange 18 which is adapted to overlap the disc 18.' The side of the disc 18 adjacent the gear 85 is countersunk and receives a screw 88 which projects beyond the shaft 15 so as to loosely anchor the shaft to the disc 18. me disc 18 is secured to the annular member 11, and consequently to the gear 85 against relative rotation by means of a set screw 8I mounted in the annular member 11. It will readily be understood that by merely loosening the screw BI and rotating the shaft 15 relative to the gear 85, that the eccentricityiresulting from the relative positions between the shaft 88 and the sleeve 81 may be adjusted circumferentially to any desired position relative to the shaft 15. After the desired adjustment is made, the set screw 8I is tightened.

On the opposite side of the base from the plate member 58 is mounted a plate member 82 (Fig. s

which is adapted to serve as an abutment for a member 83 on the movable carriage. A bolt 84,

adjustably mounted on the plate member 58' serves as an abutment for amember 85, also mounted on the movable carriage.

The base 48 provides supports 88 for the reception of the magazine 42 (Figs. 1 to 3 and 12) The magazine 42 comprises two end members 81, each provided with a flange at it lower end, which flange rests on one of the supports 88. The end members are connected by a rear bar 88 shelf formation 88, which is inclined downwardly I and rearwardly towards the magazine, as best seen in Fig. 2. The two frame members 84 and 95 are assembled together in spaced relation by means of three bolts and spacing members 81, as best shown in Figs. 2 and 3. The supporting wheels 41 are mounted on the end members.

and 85. The carriage is movably secured tothe base by means of guide bars 88 which extend transversely of the machine and are rigidly secured at the lower ends of the frame members 84 and 85 by means of bolts 88. The guide bars 88 extend inwardly beneath shoulders I88 formed on the rack 48, as best seen in Figs. 2 and 3.

A sleeve I8I (Fig. 9) located in alignment with the shaft 15, is rotatably mounted in the frame members 84 and 85. The splined shaft 15 extends into the sleeve I8I through a splined member I82, with which it has a spline connection.

.The member I82 is rigidly secured to the sleeve mechanism. As best seen in Figs. 9 and 11, this clutch mechanism includes an inner annular member I85 which is integral with the gear I88, an intermediate annular member I86 which is integral with the worm I84, and an outer annular member I81. 'The. outer annular member is pro- (Fig. 12) provided with a series of notches 88,

"each notch being adapted to receive a record. The forward extremities of the end members 81 are connected by a bolt 88 upon which are supported a series of guide bars 8|. The guide bars iii are separated by shoulders 82, and the extreme guide bars are separated from the end members 81 by spacer members 88. The guide bars extend upwardly and are inclined rearwardly to a slight extent. Their upper ends are preferably tapered to a relatively sharp point so that the space between adjacent guides is relatively greater at their upper extremities. The spaces between the guide bars 8I are located in alignment with the notches 88. The guide bars 8| are preferably of fiat stock, their width being located in the longitudinal direction of the machine.

The remaining mechanism of the machine is mounted on the carriage 48, previously referred to. This carriage comprises two main frame members 84 and 85. The main frame member 84 is vertically disposed and 'consists of a casting of substantially rectangular form, as shown in Fig. 3. The mainframe member 85 is likewise in the form of a casting and i preferably of substantially triangular form, as shown in Fig. 2. The frame member 85 is,-how ever, stepped at an intermediate height in the manner shown in Figs. 1 and 4, the stepped portion providing a vided with one ormore peripheral recesses I88 (Fig. 11) whereby its rotation may be arrested by a detent I88 (Figs. '19, 20, and 21) in a manner which will be more particularly described hereinafter. The outer annular member I81 is provided with an interior projection II8 which extends into a slot in the annular member I88, as best seen in Fig. 11. Between the projection II8 and the sides of said slot are pockets III which receive the out-tumed ends of a coil spring II2 which naturally coils tightly around the annular member I85. As shown in Figs. 9 and 11, clearance is provided between the annular members I85 and I88 to provide for the location and limitedexpansion of .the spring I I2. When the annular member I81 is allowed to rotate freely, then whenthe shaft 15 is rotated in one direction or the other, then the gear I83 and the worm m will rotate in the same direction. Thus, if the pinion I83, and of course its annular member I85, is rotated in the clockwise direction, as viewed in Fig. ll, then the spring H2 is tight upon the annular member I85, and theright hand end of the spring, as viewed in Fig. 11, will engage the annular member I84 so as to rotate this member also in the same direction. When, however, the annular member I81 is held against rotation, in the manner previously indicated, then the annular member I88 is carried in the clockwise direction away from the right hand end of the spring I I2 so that the tendency to drive is exerted by the left hand side of the spring I I2 against the projection II8. In this relation, the rotation of the member I85 tends to loosen the spring so that the clutch connection between the worm I84 and the gear I85 is substantially disengaged. It will be understood that a precisely similar effect takes The helical gear I03 meshes with ahelical gear II5 on a drive shaft II6 (Figs. 3 and 8). The shaft 6- is mounted in suitable bearings II'I which are carried by the frame member 94. Adjacent its upper end, the shaft H6 is provided with a helical gear II8 which meshes with a helical gear H9, freely mounted on the turntable shaft I20. The helical gears I03, H5, H8, and III! are of the same diameter. Atan intermediate position, the shaft II6 carries a worm I2I which meshes with a worm gear I22 which is freely rotatable on a cam shaft. I23 which extends between the frame members 94 and 95, as shown in Fig. 27.

The shaft I20 is rotatably mounted in suitable hearings in the frame members 94 and 95, as

shown in Figs. 4 and 16. Between these frame members and alongside the gear I I9, the shaft I 20 rigidly carries a fly wheel I24. Upon the hub I25 of the gear H9 is mounted a coil spring I26 which is of such a size that it grips the hub I25.-

The ends of the spring are turned outwardly, as shown in Fig. 4A so that one or other of these ends tends to contact a pin I21 carried by the fly wheel I24. The arrangement is suchjhat when the hub I25 is driven in one direction, then one of the ends of the spring I26 engages the pin I21, and this engagement is such that it tends to release the spring I26 from the hub I25. The spring is sufficiently strong that this release does not ordinarily take place, but the turntable elements and the fly wheel I24 are driven through the engagement of this end of the spring I26 with the pin I27. -As will hereinafter appear, the turntable I24 is driven in opposite directions. It will be seen that when the direction of rotation is reversed, then the other end of the spring I26 is brought into driving operation. This connection, and also the previously described similar connection 62 and 63 between the motor shaft and pinion 60, are effective in suppressing high frequency speed fluctuations which might otherwise affect the quality of the musical reproduction.

One end of the shaft I20 projects through the frame member 95 and carries a turntable element I28 which is adapted to engage the record at its center. This turntable element is so small that it is clear of th recorded surface on substantially all records. As best seen in Fig. 4, the turntable element I28 is located immediately on the outer side of the frame member 95 at a position substantially above the shelf portion 96 of that frame member. As best shown in Fig. 16, the end of the shaft I20 which carries the tumtable element I28 is provided with an axial opening I29 which is adapted to receive a pin I30 which projects. out of a movable turntable element I 3|. The pin I30 has an outer tapered end I32 which is'adapted to project into the opening I 29 when a record I 33 is held between the turntable elements I28 and I3I, as shown in Fig, 16. The turntable member I 3I is rigidly secured to the pin I 30 to which it may be secured by a pressed fit. The pin I30 is rotatably mounted in an opening I34 in a block I35 in which it is secured against removal by any suitable means, for example, by means of a circumferential groove and a set pin I36. The inner end of the pin I 30 comprises a ball I 3'! which is adapted to bear against the inner end of the opening '34. The block I 35 is pivotally mounted by means of a pivot I38 between the bifurcated upper ends I39 of an arm I40. Th pivot I38is located obliquely, as shown in Fig. 2, so-that the block I35 is mounted to swing in a plane which includes numeral I43. The two arms I39 are bridged by a plate I44 which carries a set'screw I44. set screw is adapted to engage the block I35 in the manner shown in Fig. 17, and by use of this set screw, the pin I30 can be adjusted accurately to cooperate with a record I33 which is to be loaded onto the turntable element, and with the recess I 29, in a manner which will now be de-- scribed.

It will be understood that the record elevating arm I45 which carries the record elevating member I42 is swung into the position in which it is shown in Fig. 2 in order to elevate a record from the magazine into loading position. When a record is thus elevated, it rolls up th shelf portion 96 of the frame member- 95. This shelf a portion is provided with a groove I46 (Figs. 1

- swung inwardly towards the turntable element I28, as shown in Fig. 18. Continued movement and 16), preferably lined with a flexible member I41, so as to guide the record while it rolls up the shelf portion 96. When the record is thus elevated into a position in which it is shown in Fig. 2, its central opening I48 is so located that the point of the pin I30 enters just below the top edge of the opening I48, when the arm I is of the arm I40 towards the turntable element I28 first raises the record and then brings the conical extremity. I32 ofthe pin. I30 into the- 3 opening I 29 in the manner shown '18.

Continued approach of the arm I40 towards the turntable element I28 causes the pin I30 and the block I 35 to swing about its pivot both upwardly and away from the record elevating element I42 so thatlwhen the pin I30 is in alignment with the opening I29, the record I33 is clear both from the lining M1 in the groove I46 and from the record elevating element I42. Continued movement of the arm I40 towards the turntable element I28 finally clamps the record I33 between the two turntableelements I 3| and I28, as is shown in Fig. 16. The arm I40 is mounted on a pivot I49 .supported in suitable bosses on the frame member below the shelf portion 96 thereof. Also supported on the pivot I49 is a bell crank lever I 50. This lever comprises an arm I5I which extends inwardly, as shown in Fig. 16, and carries at its innermost end a. cam

roller I52 which cooperates ,with a cam I53, which will hereinafter be more particularly described. The other portion of the bell crank lever I50 comprises a yoke I 54 (Figs. 2 and 16),

the upper portion of which is in alignment with the arm I40, and is provided with an opening/ I55 through which projects a bolt I56 carried by the arm I 40. The outer end of the blot I 56 carries a nut I51 which limits the outward movement of the yoke I 54 awayfrom the arm I40; A coil spring I58 is located around the bolt I56 and bears against the arm I40 and the yoke I 54 in the manner shown in Fig. 16. Spring means I59 are provided which tend to move the arm I40 outwardly away from the turntable element I28. It will be understood that the cam I53 is adapted to throw the yoke member I54 inwardly, that is, towards the frame member 95, and this inward movement applies resilient force through the spring I58 upon the arm I40 so as to cause it to engage the record I33 in loading position, raise it, and finally hold it between the turntable elements I3I and I28, as has previously been described. When the cam I53 is moved to another position, the spring I59 moves the arm I40 away from the turntable element I28. In order to prevent any tendency of the record I33 to move outwardly with the pin I30, I provide a. recess I60 in the face of the I3I which is directed towards the turntable element I28. In this recess 1 mount a spring I6I of fiat stock. When the spring I6I is in engagement with a record I33 in playing position, as shown in Fig. 16, the spring I6I is in the form of a spiral, the outer convolution being secured to the turntable element I3I. When the turn table element I3I is displaced from the tumtable element I28, as shown in Fig. 17, the spring I6I is expanded outwardly in the form of a conical helix. This spring is relatively weak, since it need only be strong enough to insure the removal of the record from the pin I30.

The cam I53, a cam I62, and a disc I63 are rigidly secured together to form an integral cam assembly which is mounted on the shaft I23, as shown in Fig. 27. The disc I63 is located adjacent a notched wheel I64 mounted on the hub of cam unit is separated from the notched wheel I64 and the hub of the gear I22 by a washer I65. The disc I63 has pivotally mounted thereon a dog I66 (Figs. 19, 20, and 21) which has a detent I61 which is adapted'to enter any of the notches of the notched wheel I64. Means, such as the spring I68, are provided to bias the dog I66 towards engaging relation with the notched wheel I64. The dog I66 is provided with an elongated tail I69, which is located in transverse alignment with a recess I10 formed in the disc I63, as is shown in Figs. 19 and 20. The dog I69 is adapted to be held out of engagement with the notched wheel I64 by means of a pin I1I carried by an arm I12, as shown in Fig. 19, or by a member I12 carried by an arm I13, as shown in Fig. 21. When the dog I66 is not engaged by either the pin I1I or by the member I12", the detent I61 is forced into engagement with the notched wheel I64 with the result that the cams I53 and I62 are driven from the gear wheel I22. The pitch of the worm I04 is such that each half revolution of this worm corresponds to a translation of the carriage 48 through a distance equal to the distance between centers of adjacent record pockets in the magazine 42.

As best seen in Figs. 19 and 23, the detent I09 associated with clutch control member I01, previously of the lever I13, also previously referred to. This lever carries at its upper end the contact member I12 which is in alignment and adapted to cooperate with the disc I63. The lever I13 is rigidly mounted on a shaft I" (Fig. 23), supported bythe boss formedon the frame member 94. On the outer side of the member I18 is freely mounted on the shaft I11. The member I18 is held in position by means of a collar I19 (Figs. 3 and- 23), which'is keyed to the shaftI11. The collar I19 carries diametrically opposed radial pins I80 and I". The pin I80 is located between laterally projecting pins I82 and I83 (Fig. 3) carried by the member I18, said pins being adapted to engage the pin [80. The member I18 is biased in clockwise direction, as viewed in Fig. 3, by means of a spring I84. The collar I19 and the shaft I11 are biased in which is rigidly. the gear wheel I22. The

referred to, is carried on the lower end.

frame member 94 a turntable element counterclockwise. direction, as viewed in Fig. 3, and consequently the arm I13 is biased in the counterclockwise direction, as viewed in Figs. 3, 19, 20, 21, and 22, bymeans of a spring I9I connected to the pins I8I and I83, with the contact member I12 in engagement with the disc I63. When the pin "I has raised the detent I61 of the dog I66 away from the notched wheel I64, as shown in Fig. 19, a condition which exists during the playing of a record, the contact member I12 bears against the disc I63 and the detent I09 is located within one of the notches I08 so that the worm I04 is held stationary. In this relation the record elevating member I42 i in alignment with one of the record spaces of the magazine 42. At'this time, also, the member I18 is in the position in which it is shown in Fig. 3, being in latching relation to a latch member I pivotally mounted on the outer side of the frame member 94. Themember I18 is moved into latching relation by means of a cam member which engages a projection I on the member I13. The cam member I89 is rigidly mounted on the outer end of a shaft I81. The shaft I81 is ing this member to move clockwise, as viewed in I Fig. 3, under the influence of the spring I84. As will hereinafter be explained, before this release takes place, the shaft I81 is moved in the counterclockwise direction, as viewed in Fig. 3, so as to provide clearance between the cam I89 and the member I90for this clockwise movement of the member I18. This clockwise movement of the member I18 brings the pin I82 into engagement with the pin I80, thus biasing the shaft I11 in the clockwise direction, as viewed in Figs. 3, 19, 20 and 21. Consequently, the detent I09 is pressed against the surface of the annular clutch control member I01. When one of the recesses I08 is presented thereto, the detent enters this recess and the drive of the worm I04 is terminated. It may here be noted that the release of the member I18 occurs when the member H2 is holding the dog I66 out of engagement with the notched wheel I64 in the manner shown in Fig. 21. Consequently, the release of the member I18 not only terminates the rotation of the worm I 04, but it also initiates the drive of the cam assembly, including the cams I53 and I62 and the disc I63, in one directo the member I12. While the cam assembly is thus rotating, the member I18 is in latched condition and the shaft I11 is biased in the counterclockwise dirction, as viewed in Figs. 3, 19, 20, and 21, by a spring I9I. Consequently, when the recess I10 arrives in alignment with the contact member I12, this member moves into the recess and swings the dog I66 away from the notched wheel I64. At the same time the detent I09 is withdrawn from the notch I08 and the drive of the worm I04 is resumed. r

The record lifting member I42 is inthe form of a small disc carried at the outer end of the.

ing arm I45 is rigidly mounted on a hub member- I92 which includes a gear member I93 (Fig. 25). The hub member I92 is rotatably mounted on a shaft I94 extending between the frame members 94 and 95 for free rotation, and it is held in position by means of a spacing sleeve I95, also mounted on the shaft I94. It may here be remarked that the record elevating member I42 is in alignment with the playing position of the record on the turntable members and with the center of the groove I46 in the shelf portion 96 of the frame member 95. The gear member I93 meshes with a sector member I96 which is freely mounted by means of a boss 200 on the shaft I81 (Fig. 25) Rigidly mounted on the shaft I81 is an arm I91 which extends upwardly and carries a cam roller I98 which engages the cam I62 (Fig. 24). As previously indicated, the spring I89 biases. the shaft I81 in the clockwise direction, as viewed in Fig. 24, so that the roller I98 follows the cam I62 at all times. A sleeve I99 rigidly mounted on the shaft I81 has a pin 20I projecting radially into the path of a pin 202 carried by the sector I96. When a record is being played, the sector I 96 bears against a set screw 202 which is mounted on an extension 203 of one of the guide bars 98 (Fig. 19). The sector is biased downwardly into this position by means of a strong spring 204 which is connected to the extension 203 and to a pin 205 carried on the sector. This pin is sufiiciently strong to enable it to lift the arm I45 and a record from the magazine. During the playing of a record, the cam roller I98 is located at the lowest dwell point I62 of the cam I62, as shown in Fig. 24, and there is a substantial clearance between the pins 20I and 202 at that time. Two arms 206 and 201 are freely mounted on the shaft I81 and extend away from the sector I96 in parallel spaced relation, as shown in Fig. 25. The arms 206and 201 are rigidly connected by bars 208 and 209 so that they swin in unison as a frame around the shaft I81. A pin 2I0 carried by the arm I91 extends below the arm 201 so that the arms 206 and 201 are elevated, as shown in Fig. 24 when the cam roller I98 is located at the dwell I62 of the cam I62. A spring 2I I connects the arm,201 to the arm I91v so that counterclockwise movement of the arm I91 causes the arms 206 and 201. to move downwardly. When, however,'the arms 206 and 201 are arrested in a manner. which will hereinafter be described, the arm I91 is ableto continue its rotation in the counterclockwise direction, as viewed in Fig. 24. It may be added that when the arms 206 and 201 are thus arrested,

the pin 20I engages the pin 202 and the sector I96 is rotated in the counterclockwise direction, as viewed in Fig. 24, so that the arm I45 is swung in a direction to return a played record to the magazine. It may be here noted that the arms 206 and 201 effect the raising of the player, arm away from the record, and that the return of the record to the-magazine is effected after thetone arm is thus raised.

The latch member I86 is adapted to be released from the member I18 by means of selector levers 2I2 which are pivotally' mounted below the magag zine, as shown in Figs. 3 and 12. Two levers 2I2 are provided for each record in the magazine, these levers being provided with upwardly .di-

rected projections2'l3, which are alternately displaced. .The levers are normally held in lower position by meansof individual springs 2 I4 which engage notches in the ends of levers adjacent the projections 2I3. -In their lower position, the levers v2I2 restupon a plate 2| 5 whichserves as a support,for lever operating solenoids 2| which are located on the under side of the plate 2I5. 2I2, and, when a solenoid 2| 6 is energized, its

armature moves upwardly and displaces the corresponding lever 2I2 upwardly so as to bring its projection 2I3 into operative relation with a dog 2I1 (Fig. 3).- The dog 2" is pivotally mounted on the end of an arm 2I8, which is integral with the latch I85, and upon a horizontal axis which is oblique relative to the direction of'travel of the phonograph carriage and also to the longitudinal direction of the selector levers 2I2. The

dog 2I1 normally hangs downwardly, and in its normal position, it may engage either series of projections 2I3 depending upon the direction of movement of the carriage. If these projections are in their normal position, the dog 2I1 is merely displaced, as shown in Fig. 3. If, however, a projection H3 is in elevated position, then the dog 2I1 is swung until it contacts either of two stops 2I9' carriedby the end of the arm -2I8, and the arms 2I8, I85, swing counterclockwise, as viewed in Fig. 3, against the action of a spring 220', thus unlatching the member I18. The arm- I then contacts a stop 22!, and further movement of the carriage causes the dog 2I1 to move the actuated lever 2I2 downwardly towards its initial position. Its complete return to initial position is effected by the engagement of a spring 2 withthe cam shaped surfaces at the end of the lever.

Each solenoid 2 I 6 is controlled by an individual selector switch 2I9 (Fig. 3), each of which may be actuated by its selector button 220. It will be understood that when the appropriate selector button is pressed inwardly, the switch 2I9 is closed and the corresponding solenoid 2I6 is energized so that the corresponding bar M2 is pressed upwardly so as to bring its end into operative relation to the dog 2I1. It will be understood that the circuits of the solenoids and'the motor 4I may be controlled directly by manually operable switches or that they may be controlled by coin actuated means. I

It will be understood that two levers 2I2 are provided for each record. Thus, for twenty records, forty levers 2I2 are provided. Owing to the swinging of the dog 2", the two levers 2I2 corresponding to one record are displaced sideways, and the two series of levers 2I2 corresponding to the playing of one side of the records, say the left hand side, and the series corresponding to the playing .of the other side of the records, say'the right hand side, are displaced sideways. As shown in Fig. l, the displacement of the levers 2I2 for one particular record'is two and one-half times the record spacing. Fig. 1, the first lever 2I2 corresponds to the playing of one side of the first record, the second One solenoid 2I6 is provided for each lever- Ccnsequently,'reading from left to rightin record, and so on.

8 lever 2I2 corresponds to the playing of the same side of the second record, the third lever 2I2 corresponds to the playing of the same side of the third record, the fourth lever 2I2 corresponds to the playing of the opposite side of the first record, and the fifth lever 2I2 corresponds to the playing of the first said side of the fourth The first three levers 2I2 at each end have magazine record spacing. The otherievers 2I2 have half this spacing and are arranged alternately for playing opposite sides of records. The dog 2" is swung, as has previously been explained, so as to cooperate with one series of levers 2I2 when the carriage is moving in one direction, and is swung to cooperate with the other series of levers 2 I2 when the carriage is moving in the opposite direction.

The pickup 22I' is carried by a player arm 22I with its smallest dimension substantially Derpendicular to the plane of its record playing position (Figs. .3 and 4), and is provided with a double pointed needle 222 which extends through the pickup and is held in place by a set screw 223. The doubl pointed needle 222 is located in oblique direction relative to the longitudinal direction of the player arm 22I. The needle 222 is arranged so that it forms an acute angle with the approaching groove .of the record. Thus, when the right hand point of the needle is operating, as shown in Fig. 4, the direction of -rotation of the record 224 is clockwise, as viewed from the left in this figure. When, however, the left hand point of the needle 222 engages the record, the player arm 22I occupies a position to the right of the record 224, as viewed in Fig. 4, and the direction of rotation of the record is counterclockwise, as viewed from the left in Fig. 4.

In the embodiment of the invention shown in Figs. 1 to29, the player arm 22I extends through a ring 225 (Figs, 2 and 29) which is provided with two pivot points 226 held in adjusted position by means of set screws. The pivots 226 cooperate with a block 221 resiliently mounted within thev arm 22I. The block 221 is carried by springs 228, the ends of which are rigidly mounted within and to the interior of the player arm 221. They may, as shown in Fig. 29, be anchored at 229 to a hollow or U-shaped block 230 contained within the hollow player arm, 22], and their opposite ends may be bent around away from each other to provide U-shaped portions 23I, which are also rigidly secured to the block 230. The axis provided by the pivot members 226 is parallel to the playing plane of a record supported on the turntable elements I28 and I3 I. And they are maintained in this relation by the support of the ring member 225 on an axis which is parallel to the axis of the turntable elements. The player arm 22I projects downwardly beyond the axis provided by the pivots 226, and it is provided with a counterweight 232 (Figs. 2 and 26') which accurately locatesthe center of gravity of the playerarm on the axis of the pivots 226. Adjacent the weight 232, the arm 22I carries two rollers 233 which are adapted to be engaged by inclined or cam surfaces 234 on the arms 206 and 201. Thus, referring to Fig. 26, it will be understood that when the arm 22I is adjacent the arm 206, then the player arm is located so as to cooperate with the back side of the record, as viewed in Fig. 19 or the left side of a record as viewed from the front of the machine. when the arm 206 is elevated above its position shown in Fig. 26, the player arm 22I is biased by a spring 235 so as to apply the appropriate side of the needle against the record. When the arms 206 and 201 are moved downwardly, in a manner previously described, the inclined surface 234 of the arm 206 engages the left hand roller 233, as viewed in Fig. 26, and the arm 22 I' is swung counterclockwise, as viewed in Fig. 26, to a slight extent, so that the needle 222 is moved away from the record to a slight degree. When, however, the needle 222 is located to cooperate with the other side of the record, that is, the adjacent side, as viewed in Fig, 26, the arm 22I occupies a position adjacent the arm 201. Under these circumstances, the spring 235 is relieved of its tension and the spring 236 is te'nsioned so that the arm 22I is biased towards that side of the record, that is, the adjacent side, as viewed in Fig. 26. when the arms 206 and 201 are elevated, the needle 222 engages that side of the record. When, however, the arms 206 and 201 are moved downwardly, in the manner previously described; the cam surface 2340f the arm 201 engages the right hand roller 233, as viewed in Fig. 26, with the result that the arm 22I is swung around the pivots 226 to a slight degree in the clockwise direction, as viewed in Fig. 26, so that the needle is raised or displaced away from the face of the record with which it has been cooperating.

The spring 235 is connected to a plate 231 and the spring 236 is connected to a similar plate 238. The plates 231 and 238 are rigidly connected by means of rods 233, 240, and 2 to constitute a rigid frame. The rods 239, 240 and 24I are best illustrated in Figs. 1, 4, 19 and 20 and particularly the latter where they are shown in section and from which their location relative to the lates may be readily ascertained. This frame is pivotally mounted by means of opposed pivots 242 carried by the frame members 94 and 95 on an axis which is parallel to the shaft I20 01' the turntable element I28, and consequently at right angles to the axis provided for the player arm 22I by the pivot members 226. The ring 225 i integral with a'block 243 which is slidably mounted upon the bars 240 and 2 (Fig. 19). The block 243 can be slid along the rods 240 and MI so as to locate the ring 225 adjacent the plate 238, as'

shown in Figs. 1 and 4, to adapt the player arm 22I for playing the left hand' side of the record, as viewed in Fig. 1, or it can be slid towards the plate 231 to effect the playing of the opposite side of the record. The block 243 carries a formation 244 which is arcuate with respect to the axis provided by the pivots 242. This formation 244 extends into a groove 245 and a sleeve 246, which is adapted to be displaced in a manner hereinafter to be described, in a direction parallel to the axis provided by the pivot 242.

The mechanism carried by the pivots 242, that is. the frame including members 231, 233, 239, 240,24I, together with the player arm 22I and elements carried thereby, needle 222, counterweight 232, ring 22.5, and the block 243, are counterbalanced by a counterweight 241 (Figs. 4 and 26) carried by plate 231 so that the center of gravity of this system is located on the axis provided by the pivots 242. Thus, the player arm HI and associated elements are counterbalanced for movement about the axes parallel to and perpendicular to the shaft I20 which carries the turntable element I28. The rollersv 233 are located so that they lie in alignment with the pivots 242. Consequently, when the arm 206 or 201 moves downwardly and cams the player arm 22I

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