US2235693A - Phonograph - Google Patents

Description

March 18,; 1941.

A. S. WELLS Ffflbd June 22, 1940 4 She ets-Sha et 2 March 18, 1941. A WELLS 2,235,693

I raonoannrn Filed June 22. 1940 W 4 Sheets-Shep: 3

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PHONOGRAPH Filed June '22, 1940 may I a 5 6 a 0 z (I 10/ may W w w m J%%Zd%/4 z f aw Q??? fidzazrzq w.

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Patented Mar. 18,1941

Albert S. Wells, Chicago, 111., assignor to Wells- Gardner & 00., Chicago, 11]., a corporation of Illinois Application it... 22, 1940, Serial No. 341,831

28 Claims.

This invention relates in general to a phonograph of the disc record type and has more particularreference to a multiple record holder and mechanism for automatically moving the tone arm and changing the records.

An important object of the invention is in the provision of a multiple record holderengaging the center opening and at one edge of a record and in means for discharging the lowermost record into a playing position.

A still further object of the invention is in the provision of'improved means for controlling the movement of a tone arm to and from playing position. v 5 A still further object of the invention is in the provisionof improved clutching and unclutching mechanism for connecting the tone arm 'controlling means with thedisc record drive.

A further object of the invention is in the pro- 20 vision of improvedmeans for adapting the mechanism to play records of different sizes.

Other objects of the invention will appear in the specification and will be apparent from the accompanying drawings in which,

25 Fig, 1 is a plan view of the upper side of a phonograph in accordance with this invention;

Fig. 2 is a plan view of the under side of the phonograph shown in Fig. 1;

Fig. 3 is a section taken onthe line 3-3 of 30 Fig. 2;

Fig. 4 is. a section taken on the line tt of Fig. 2;

Figs. 5 and 6 are different perspective views of the tone arm controlling cam;

35 Fig. 7 is a development of the grooves and contact surfaces of the cam;

Fig. 8 is an enlarged perspective of a portion of the clutching and shown in Fig. 3;

40 Fig. 9 is a perspective of the edge record'holding post;

Fig. 10 is a sectional view taken on the line ill-ill of Fig.3;

Fig. 11. is an enlarged sectional view showing 5 the central record holding post;

Figs. 12 and 13 are views partly in section illustrating the record feeding action at the upper end of the central position;

Fig. 14 is a detail section taken on the line 50 l4-M of Fig. 12?

Fig, 15 is a section taken on the line i5-l5 of Fig. 13;

Fig. 16 is a sectional view of the lower end of the post taken on the line lil6 of Fig. 11; and Figs 11-and 18 are .detail cross sections taken unclutching mechanism on the line l1i'| and l8-lfl respectively of Fig. 16.

Disc record phonographs commonly employ supporting means at opposite edges of the records for supporting them in non-playing position and in the use of a complicated mechanism for controlling the various movements of the tone arm to and from playing position. and also to accommodate it for playing records of different sizes. r 1

The present invention overcomes these objections and provides a cam structure for controlling the operation of the tone arm and also of the clutching and unclutching mechanism for moving the cam at the proper times. The other ob- 15. jections are overcome by supporting the unplayed records at their central openings and at one edge thereof, and by providing timed operating means for discharging the lowermost unplayed record into playing position. '20

Referring now more particularly to the drawings, the mechanism is shown mounted upon or in connection with a supporting base 20, preferably made of thin metal or any suitable material and of a size slightly larger than the records to be played. A record playing table H is rotatably mounted at its center upon a tapered sleeve 22 and is driven at its outer edge by means of a downwardly extending flange 33 engaged at the inside by a roller 25 driven by a pulley 25 in contact therewith mounted at the upper end. of a shaft 26 of an electric motor 21. disposed below and supported by the plate 20. An electric switch 28 is' conveniently located at the top of the plate for-starting and stopping the motor in a well'known manner.

Movement is communicated fromthe table to a driving shaft 30 by means of a gear 3| at the lower end of the sleeve 22 just below the plate 20, Figs. 3, 10 and 11, which meshes with an idler gear 32 also connected to a gear 33 secured to the upper end of a vertical shaft 34 (Fig. 4) having a worm gear 35 meshing with a corresponding worm gear 36 located on the shaft 30. Thus when the record table. is rotated the shaft 30 is 5 continuously driven at a reduced speed.

The shaft 30 and the other mechanism below the center of the table are commonly mounted in a block 31 supported at the under side of the plate 20, and the shaft extends in both directions .50 therefrom, being provided at one end with a threaded extremity 38 for a recording attachment which is independent of the present invention, and the other end of the shaft is supported in .a plate 39 attached to the marginal edge of the 455 base plate 20 and depending therefrom. Freely mounted on this end of the shaft is a sleeve shaft 40 which carries a controlling cam 4| and is periodically connected to and disengaged from 5 the shaft 30 to cause operative movements of the cam. Free rotation of the sleeve shaft 4. is prevented by a spring-finger 42 which is secured to the under side of the plate 20 at one end and bears yieldingly against the shaft at its free end. In the outer face or periphery of the cam it is a double groove for the engagement of a cam follower 43 movable at the lower end of a follower stem 44 and vertically slidable in a bracket 65 attached below the plate 26 to a tone arm supporting post 46. At the upper end of the post isa yoke 41 in which a tone arm 4Q is pivoted for up and down movement, the ,arm turning with the post 46 for movement caused by its stylus 49 engaging the recording grooves of a'record se. In the plate at is an arcuate slot M in which the stem 46 is movable and engaging the top of the stem is a bent extremity 52of an arm 58 which is secured to the tone arm 4S adjacent its mounting yoke ll so that a movement of the am 53 will cause a corresponding movement of the record engaging end of the tone am it. To control the swinging movement of the tone arm, the cam H has a flat portion 54 at one side and a double or compound groove comprising a marginal groove 55 which extends entirely around one end of the cam with a crossing 56 extending inwardly therefrom and having a. short inner extremity 51 opening into a wide or free cam space in the flattened portion 54 having an outer wall 58 converging along the hue 59 to the crossing point 56 so that the path of the follower 43 from the open orplaying space 54 is, as the cam is turned in the direction indicated, to engage the inclined wall 59 to continue straight 0 acrms the crossing 56 to the'outer cam groove 55, to follow this groove for one complete turn and then to move inwardly at the cam crossing 56 through the terminal 51 and into the free playing space 54;

turn of the tone arm to the same position for playing another record there must be two comor playing position 5E uppermost and the tone arm is then free to swing from the-margin of the record 50 inwardly until it reaches a quickturn groove Gil of a record which operates a clutch 6| pivoted to'a collar 62 on shaft 80 adiacent the end of the sleeve shaft 46. This clutch comprises a frictional member 63 surrounding the tone arm shaft 48 at its lower end (Rig. 2) which has an arm 64 afllxed thereto and extending therefrom with a projection in the form of a screw 65 extending from the free end in a slot 66 at one end of a lever 8'! mounted intermediate its ends on a pivot 58 and having a free extremity 69 adapwd to engage a slide in (Figs. 3 and 8). A projection or hook iii ex 55 tends outwardly from the slide and the free end of the lever 61 moves between it to move the slide in oppositedirections, depending upon the movement of the tone arm shaft 4-6. The clutch slide I0 is movable into and out of clutching 10 engagement uponstuds l2 which project through slots 13, and at the inner end of the slide is an inclined projection I4 for. engaging a projection 15 extending outwardly from the pivoted clutch member 6| When this inclined surface is moved 1 into thetpath of the projection I5, the clutch Thus for a complete movement of the cam for playing one record to a remember being constantly rotated by the shaft 88, the clutch is swung outwardly, to the broken line position as shown in Fig. 2, thus moving an opposite projection 16 into the path of a projeotion ii on a collar I8 rotatable but not lon- 6 gi-tudinally movable on the shaft 38 and having a key 19 for connecting it for rotary movement with the sleeve shaft Mi but allowing longitudinai movement of the sleeve with rwpeot thereto.

the cam and a pin 88 projecting therefrom is moved in a slot at of the bracket 55 (Fig. 4) into the path of a spring latch 82. When the follower rides from the high point of the earn, the pin ell may ride above the latch 82, engagg5 ing an inclined surface 83 which moves the latch outwardly when the follower stem moves downwerdly upon the engagement of the follower 63 with the flattened portion of the cam groove 55. When the follower rides upon the high porso tion 55a of the cam groove. the pin on which is now below the latch 82 will en age it and move it upwardly, the latch having a supporting portion 843 with a slot 85 therein through which the end of the sleeve shaft it extends and the 35 lower end of the latch also having a slot 86 for engagement with a fixed projection Bl extending from the supporting plate 39 and forming a guide therefor. A spring 88 attached to the lower end of the latch stem and to a fixed projec 40 tion 89 tends to draw the latch downwardly at all times. a

At the lower end of the latch stem are two projections 99 and 91, the former lying in the path of a bent extremity 92 of a clutch operat- 65 ing bar 93. This bar is supported near its other end by a bracket 98 attached to the under side of the supporting plate 20 and at its extremity has an offset angular projection $5 for engaging a pin 96 extending from a slide 91 and held 50 thereby from disengagement of the clutch 6!.

This slide is mounted upon slots 98 through which the studs 89 extend and at the end of the slide is an inclined plate we movable into the path of the projection H5. at one side of the g5 clutch member 5i.

As the clutch is rotated the projection l5 engages the inclined surface of the plate not which throws the clutch member out of its engaging position after the cam has passed the high point go 5621 of its groove, allowing th cam movement to continue a predetermined time before the clutch is thrown out.

in order to move the inclined plate I00 into the path of the clutch $8 a lever it! is pivoted 35 upon a projection H02 extending from plate 91 and a spring tilt is connected to the upper end of the lever and to a fixed projection I04 so that the spring tends to draw the plate 91 and the inclined plate .illii carried thereby intothe 7 path of the projection 15 of the clutch 5| but is held therefrom by the engagement of the extremity of the rod 93 in engagement with the pin 8i. The movement of the lever by the spring is also iimited by its engagement with a fixed 7 pin I02a extending from the projection I02 Into the path of the lever.

At the other end of the lever IN is a projection IOIa in the path of a. knock-out pin 62a carried by the clutch collar 52 and as this pin engages the projection IOIa it moves the lever IOI, together with the'slide 81 to which it is connected until the projection 95 is again positioned behind the angular extremity 85 of the unclutching bar 03.

Thus the cam 41 is engaged and rotated with its shaft 40 for timed rotation with respect to the shaft 30 and is released for allowing the free movement of the tone arm over the flat portion or playing surface 54 of the cam until the engagement of the quick-turn 50 at the center of the record operates the clutching mechanism as above described.

In order to position the records on the table 2I for playing there is a central post I05 which is inserted through the central openings I08 of the records and the lower portion of the postis inserted in a sleeve I01 threaded at its lower edge into the supporting block 31, this portion of the sleeve having an inwardly projecting flat sector I08 and the post having a corresponding 'flat side I08 so that the post is freely insertable but does not rotate in the sleeve.

At the upper end of the post is an offset portion H attached to or formed integral with the remainder of the post, rounded at the upper end to admit theopenings I06 of records freely thereto and providing a shoulder I II just below the offset. This upper ofiset portion is of sufficient length to provide a holder or magazine for a number of records, the lowermost of which is supported upon the shoulder III or upon a cam I I2 at the top of the shoulder.

At the outer edge of the records is a marginal supporting pest II3 supported at the bottom by the base plate 20 and having a fixed abutment I I4 at a level with the top of the cam II2 of the center post and comprising spaced projections II5 for engaging adjacent points at the under.

of the uppermost record supported by the post with a spring II8 connected at one end to the lever and at the other end of the post for holding the lever yieldingly in place. The end of this lever H6 is turned upwardly toform a finger hold for raising the lever to apply and remove records and a rear abutment H9 is formed on the lever to engage the rear side of the post where it is also held in non-engaging position by the spring IIB which is moved by the rotation of the lever to the other side of its pivots; thereby holding the abutment I I8 against the rear side of the post.

To move the lowermost record from the stack or magazine at the top of the post, the cam II2, which is less in size than the extent of the central opening I06 of any record, is moved from a po sition as shown by Figs. 11, 13 and 15 to a position within or under the upper post extension I I2 as shown in Figs. 12 and 14. When the cam is moved inwardly the lowermost record which has been supported by it is dropped into engagement and is supported by the shoulder III below. The outward movement of the cam then forces the lowermost record of! or out of engagement with the shoulder, causing the opening to register with the playing portion of the post I05.

The cam II2 is actuated by a central shaft I20 which extends to the bottom and below the end of the post I05 where a foot-piece I2I is secured thereto by a fastening screw I22. This foot-piece is also formed with a flattened portion I23 at one side thereof and in a recess I24 at the bottom of a post I05 is a spring I25 surrounding the shaft I20 and engaging the footpiece I2I, tending to keep the cam II2 in the outermost or recording position as shown in Figs. 11 and 15.

Inorder to 'turn the cam shaft I20 against the tension of spring I25 the foot-piece I2I is seated in a recess I26 of a rotatable bearing member I21 which has a flat portion to receive the fiat portion I23 of the foot-piece so that as the bearing member is rotated the foot-piece and the cam shaft I20-will be turned within and independently of the post-I05 and. against the spring I25. At the lower end of the bearing member is a gear I28 meshing with a gear segment- I29 rotatable on a pivot I30, the segment having an opposite projection I3I with a pulley I32 at the end normally free from engagement. The gear segment I29 is normally held in this position by spring I33 connected at one end to the gear (Fig. 2) and at the other end to a fixed arm I34 projecting from the fixed support in which the bearing I21 is mounted. In this position the cam shaft I20 and the cam I I2 is in the normal position supporting the lowermost record 50 at the center thereof.

In order to operate the cam by the movement of segment I29 an engagement arm I35 is pivoted on a projection I36 extending from the collar 18 secured to the shaft 30 and a spring I31 is congagement of its latch 82, the arm 9| projecting therefrom engages a projection I38 at one end of an arm I38 mounted intermediate its ends upon a pivot I40 and connected at the other end to a rod MI. The outer end of the rod extends through an angle plate I 42 extending downwardly from and slidably mounted at the-under side of the plate 20 and the extremity of the rod is movable to engage the pivoted arm I35 adjacent the pulley I32 (Figs. 2 and 4) to project it against the tension of its spring I31 into the path of the pulley, thereby moving the gear segment I29 against the tension of its returning spring I33 and actuating the record discharging cam II2 in timed relation to discharge a record as described. When the arm I35 is moved past its engagement with the pulley I32, the arm is returned by its spring I31 to its normal position, the segment I29 is returned to its normal position by spring I33 and the operating bar I is returned to its normal position by a spring I43 connected at one end to the lever I38 and at the other end to the supporting plate 39.

Disc'records may be furnished in different sizes and in order to accommodate them the marginal post H3 is movable in a radial slot I44 in the base plate 20. At one side of the slot are notches I45 corresponding to records of different diameters and at the corresponding side of the post is a. slide I46 having a projection I41 engageable in either one of the notches I45, depending upon the size of the record to be played. The slide I48 is raised out of engagement with one notch and the post is moved accordingly and then the slide is moved to engage its projection with the other notch, but this arrangement is not adapted to support and play records of different sizes for the same setting.

Secured tothe post I Id at the under side of the plate 20 and covering the slot M4 is an angle plate I48 having a downward perforated extension I49 through which a control rod I60 extends with adjusting nuts iii on a threaded end portion thereof at both sides oi the extension 9 to vary the position of the rod. At the other end of this rod it is pivotally connected to the end upon the stylus reaches the of a lever l5! 'rotatably mounted upon a pivot I52 secured to the under side of the supporting plate 20 and having a notch or recess I53 (Fig. 4) at the other side of the pivot engaging a pro- :Iection I56 at the under side of the angle plate I42 which is slidably mounted by means of a slot I55 and a stud E55 extending therethrough into the plate 20. Thus the movement of the marginal record post H8 causes an opposite and a greatly reduced movement of the angle plate I42 the lower edge of the angle'plate'engaging in a groove I51 around the outside of the sleeve shaft 40 so that there is a corresponding opposite movement of the shaft 49. The reason for this is that the tone arm is started in playing position at a slightly greater diameter and therefore the position of the follower stem 4% corresponding thereto is more outwardly in the slot W in order to allow the stylus 49 to traverse a greater playing area on a record when the marginal post is moved outwardly. The engaging position at the center of the record for the quick-turn groove 60 may be about the same and the width otthe playing space 54 on the cam 4| is suficient to take care of any variation of the movement of the stylus over this portion of the cm, the inclined shoulder 59 of the cam also taking care of any variation of this engaging point. 7

In operationthe marginal bearing post is set fora number of records of the same size to be played, these records are placed upon the magazine portion I ill of the center post where they. are held by the cam H2 and the outer marginal sup port. One of the records is placed on the playing table 2|, the motor is started and the tone arin is automatically engaged with the record groove at the periphery of the disc in the playing position. At this time the clutch Si is disengaged by the unclutching mechanism, the cam M is stopped with the flat or playing surface in uppermost'posi-tion allowing free" movement of the tone arm and playing continues until finished, wherequickturn 60st the center of the record.

This movement of the tone arm shaft 46 causes the operation of the lever 81 of the clutching mechanism which throws in the clutch for rotating the shaft 40 upon which the controlling cam M is mounted and the first movement of the cam causes the follower and the follower stem to raise the tone arm from the record and the inclina- 'tion of the cam shoulder is swings the tone arm laterally clear of the records.

The record feeding mechanism comes then into operation, the cam H2 swinging inwardly to drop the lowermost record upon the shoulder Ill and I then to move. the record outwardly to register with the central playing portion lli'of the supportin post and away from and out of engagement with the marginal supports Ill so that the accuses record drops into playing position over the record below.

The operation is then repeated, the tone arm being first automatically placed in'the playing position by the operation of the cam 4|, and all 5 r ords of diflerent size, the position of the cam and the movement of the tone arm are changed to conform thereto.

I claim:

1. In a phonograph, a substantially vertical supporting post for engaging the central openings of disc records to be played thereby, the post 20 being stationary and having an integral oilset vertical portion for supporting records in horizontal position at the upper end and a lower record playing portion, the ofl'set post portion being free and unobstructed at the top for the application of records thereto, and means at the offset engageablein the central opening of a record supported thereon and rotatable about the axis of the lower post portion for discharging the lowermostrecord from the oflset vertical portion to the lower playing portion. I

2.-In a phonograph,.a substantially vertical post for engaging in the central openings of disc records, the post having a hollow portion and an integral upper magazine portion for supporting records to be played, and means extending upwardly within the post and having a part movable in the lower central disc opening to discharge records from the magazine portion of the post into a playing position on the post below the magazine portion.

3. The combination with a phonograph having a vertical record supporting post supported only at the bottom with an oflsetvertical upper magazine portion and a hollow lower portion, of rec= ords having central openings by which they are held-on the post in magazine and playing positions, and means extending through the lower portion of the post to the bottom of the magazine portion and operated by the phonograph for dislodging the lowermost record from the magszine portion and discharging it into playing position on the post.

4. In a phonograph, a flxed vertical post for disc records having an integral upper magazine 55 portion with a support at the bottom for engaging the edge of a central opening of a disc rec'- ord, and means extending upwardly from the bottom of the post operated in timed relation by the phonograph and rotatable on said supportabout a vertical axis for engaging in the central opening and disengaging a record from the su port at the bottom of the magazine portion an discharging italong the post into a lower playing position.

5. In aphonograph, a rotary playing table for disc records, a removable stationary central post extending from below and upwardly beyond the table, a discsupporting magazine extending vertically at the upper end of the post comprising a support-upon which one or more records are supported by their center openings, and means extending from the phonograph and from the bottom of the post upwardly and rotatable to engage in the center opening of the lowermost record for moving the record from engagement with the 75 support at the bottom of the magazine and discharging it along the post to a playin position on the table.

6. In a phonograph of the disc record type, a central record engaging post removably supported at the bottom only and extending above the playing table of the phonograph and having an integral magazine portion at the upper end of the post, the magazine portion having a shoulder for engaging the edge of the central opening of records seated thereon, and cam means supported on the shoulder and rotatable in connec tion with the post having operating means extending upwardly from the bottom thereof for. engaging a record within the central opening thereof and moving it out of engagement with the shoulder and along the post by gravity into v .to a position within the upper magazine portion of the post and within the central opening of a record, and means extending along the post from the bottom thereof for rotating the cam about a longitudinal axis within the post from a position supporting the lowermost record to drop the record on the shoulder and then to engage in the opening of the record for moving the record from the ofiset magazine portion to register with the lower playing portion and at the same time to move the cam into position to engage below the next record on the magazine.

8. In a phonograph for disc records, a rotatable table and a tone arm movable over a record thereon in playing it and free from the record at the end of the play, a central stationary record engaging post removably mounted below but extending above the table and having an integral record magazine supporting portion at the upper end of the post above the path of the tone arm, the post having a supporting shoulder and cam at the bottom of the magazine portion for engaging the edge of the lowestrecord in the magazine, and timed means in connection with the phonograph extending through the post from the bottom thereof for rotating the cam within the central recess of a record to. diseng e the lowermost record from the magazine portion of the post and to register it with the lower playing portion of a post so that it falls by gravity upon the table in playing position when the tone arm is moved outwardly beyond the edge of the table at the end of playing a previous record.

9. In a phonograph forplaying discrecords, a central post with an integral record supporting portion at the. upper end and a hollow lower portion, a marginal post with supports in a limited sector at one edge of records to be played, and means extending upwardly from the bottom of the central post for engaging the central portion of the lowermost record and moving a record supported by the central post and by the supports of the marginal post to disengage the edge of a record from the marginal post supports and also from the upper supporting portion for discharging a record into playing position.

10. In a phonograph for playing disc records having central openings, a fixed central post removably supported at the bottom only to extend through the openings and having an integral upper record magazine portion, the magazine portion comprising a shoulder for engaging the edge of a record opening, cam means operable through the post from the bottom thereof to engage below a record on the shoulder and rota-table within the central opening of a record for moving it free from the shoulder .to register with the central post, and a marginal post having a support for engaging and upholdingthe edge of a record at the bottom of the magazine, the movement of the cam means in a record opening being sumcient to disengage the record from the marginal,

support to-move the record along the post below the magazine to record playing position.

11. In a disc record phonograph, a stationary central supporting post having an integral offset magazine portion at its upper end, a shoulder and cam means at the bottom of the magazine portion, a marginal post with a support to engage and ,uphold the lowermost record in the magazine, a spring-pressed arm at the upper end of the marginal post movable'from a position engaging the upper iace of the top record thereon to a position admitting additional records thereto and to the magazine portion of the post, and means in connection with the phonograph ex-, tending through the post from the bottom thereof for rotating the cam means to discharge the lowermost record in the magazine by moving it from engagement with the marginal upholding support "and from the ofiset portion of the post into register with the portioniof the post below the magazine.

12. In a phonograph for disc records, a central record supporting post having an integral magazine portion at the upper end thereof, rotatable cam means extending through the bottom portion of the post and engaging in a central record opening for moving the lowermost record from the magazine portion into lower playing position, a marginal post having a support for upholding the edge of the lowermost record in the magazine,

the movement of the cam means also disengaging the edge of a record from the marginal post, and means for adjusting the marginal post at the edge to accommodate records of difierent diameters.

13. In a phonograph, a stationary record supporting post having a magazine portion at one end and a playing portion, rotatable cam means at the end of the magazine portion for feeding records by engagement in the central opening therein from the magazine portion to the playing portion, and means extending within the post for actuating the cam means and including a shaft extending to the supported end of the playing position of the post. i

14. In a disc record phonograph, a rotatable playing table, a post for engaging in the central openings of the discs having a magazine portion at the upper end thereof, means for removably mounting the post in fixed position by engaging the lower end only, a cam on the post at the lower end of the magazine portion rotatable in a record opening, a shaft connected with the,cam extending to the bottom of the post, means including a gear connected to the lower end of the shaft for rotating the cam, and means for periodically operating the cam by means of the gear to discharge records one at a time from the magazine portion of the shaft.

15, In a phonograph for playing disc records. a rotatable table and a continuously rotating shaft, a stationary post extending upwardiyabove crosses to connect the portions of the groove, one

portion of the groove widening out in the flattened lowermost record and including a shaft extending downwardly through the post, a gear secured to the shaft, a segment engaging the gear including a projection extending adjacent the continuously rotating shaft, and means operated in timed relation by the shaft for engaging the projection to actuate the cam means for discharging the lowermost record from the magazine.

16. In a disc record phonograph, a rotatable table and a continuously rotating shaft, a tone arm pivoted to raise and lower and to swing to and from playing position, a rotatable cylindrical cam and a follower therefor at a distance from the axis of the post for engaging the tone arm,

the cam having elongated fiat and rounded portions to raise and lower the follower, and means supported by the post for mounting the follower to swing through a limited arc lengthwise of the outer cam surface about the swinging axis of the tone arm and maintain its engagement with the cam to raise and lower the tone arm as it is;swung by the movement of the cam.

17. In a disc record phonograph, a rotatable table and a-continuously rotating shaft, a tone arm pivoted to raise and lower and to swing to and from playing position, a cylindrical cam and a follower'for engaging the tone arm, the tone arm having a post upon which it is mounted for swinging movement with an arm extending therefrom engaged by the follower,'a bracket secured to the tone arm shaft in which the follower is -mounted for vertical movement by the cam and for swinging movement with the tone arm and shaft lengthwise of the outer cam surface, and means for connecting the cam to the continuously rotatable shaft for moving the tone arm by means of the follower.

18. In a disc record phonograph, a rotatable table and a continuously rotating shaft, .a tone and from playing position, a lower type rotatable portion to provide a playing space, and a follower mounted to raise, lower and swing, and movable in the groove of the cam for actuating the tone 5 arm, means for connecting the cam to and disconnecting it from the continuously rotating shaft to stop the cam when the follower is positioned at the flattened portion, allowing the follower to swing laterally of the outer surface of the cam 10 when the tone arm is in its record playing position, and the cam being then rotated two complete rotations for each record played. e

21. In a disc record phonograph, a rotatable I table and a continuously rotating shaft, a tone 15 arm pivoted to raise and lower and to swing to and from playing position, a rotatable drum cam and a follower engaging the outer surface of the cam for raising, lowering and swinging the tone K arm, a sleeve shaft to which the cam is secured 20 mounted on the other shaft, a clutch member secured to the continuously rotating shaft for engagement with the sleeve shaft to rotate the cam, clutch engaging means for moving the A clutch member to connect the shafts for rotation 25 together at the end of playing of a record, and clutch disengaging means for throwing out the said clutch connection when the tone arm is set by the cam in position to play a record.

'arm pivoted to raise and lower and to swing to cam and a follower engaging the outer surface for actuating the tone arm, the camhaving rela-- tlvely high and low portions for raising the follower and a double groove forswinging the follower laterally and moving it longitudinally of the outer cam surface, and timed means for connecting the cam for two complete rotations thereof for each complete record playing movement 'of the tone arm. f

' 19. In a disc record phonograph, a rotatable 22. In a disc record phonograph, a rotatable 30 table and a continuously rotating shaft, a tone arm pivoted to raise and lower and to swing to and from playing position, a rotatable drum cam and a follower engaging the outer surface of the I cam for raising, lowering and swinging the tone 3:; arm, a sleeve shaft on which the cam is mounted for rotation upon the other shaft, a clutch for connecting the continuously rotating and sleeve clutches comprising a pivoted clutch member carried by the continuously rotating shaft, a clutch 4 en ging member movable into the path of the clutch member to connect it with the sleeve-shaft, lever means for actuating the clutch engaging member, and a shaft on the tone arm for actuating the lever means and through it to connect the clutch when the tone arm is moved to the end of the playing position on a record.

23. In a disc record phonograph, a rotatable table and a continuously rotating shaft, a tone arm pivoted to raise and'lower and .to swing to and from playing position, a rotatable cylindrical cam and a follower engaging the outer surface of the cam for raising, lowering and swingtable and a continuously rotating shaft, a tone arm pivoted to raise and lower and to swing to and from-playing position, a rotatable drum cam having relatively high and low portions and a double cam groove in its outer surface with a cam crossing connecting the portions thereof and a follower connected to the tone arm and engaging the cam grooves for movement lengthwise of the cam surface and actuating the tone arm in its movements, and clutch means for connecting the cam to the continuously rotating shaft and for disconnecting it from the shaft in timed relation to rotate the cam two complete turns for each record played.

20. In a disc record phonograph, a rotatable table and a continuously rotating shaft, a tone arm pivoted to raise and'lower and to swing to ,and from playing position, a rotatable drum cam having relatively flat and rounded surfaces with a double continuous ca'm groove thereln wl ich ing the tone arm, a sleeve, a shaft on which the cam is mounted, a clutch mechanism for connectlng the continuously rotating shaft and the sleeve shaft, a clutch disconnecting mechanism comprising an inclined member movable into the path of the clutch for disengaging it, a bar for controlling the movement of the member into 0 unclutchingposition, and a latch operated by the follower to move the bar in timed relation for operating the unclutching mechanism when the follower has reached a predetermined position upon the cam.

24. A structure in accordance with claim 23 in which. the unclutching member is springpressed and provided with an-inclined plate mov-' able into thepath' of a pivoted clutch member for disengaging it from the sleeve shaft, and the continuously rotatable shaft having a knockout projection for engaging the spring-pressed 7 member and returning it to disengaging position where it is again engaged and held by the controllingbar. v i 73 25. In a disc record phonograph, a. rotatable table and a continuously rotating shaft, a tone arm pivoted to raise and lower and to swing to and from playing position, a rotatable cylindrical cam and a follower engaging the outer surface of the cam for raising, lowering and swinging the tone arm, a sleeve shaft on which the cam is mounted for rotation with respect to the continuously rotating shaft, a record magazine comprising av marginal supporting post adjustable radially to accommodate records of different sizes, a clutch connectionbetween-the continuously rotating shaft and the sleeve shaftbut permitting a relative longitudinal movement of the latter, and a connection between the bottom of the marginal post and the sleeve shaft for moving the cam independent of the clutch mechanism to-vary the movement of the tone arm in accordance with the setting of the marginal post,

26. In a disc record phonograph, a rotatable table and a continuously rotating shaft, a tone arm pivoted to raise and lower and to swing to and from playing position, a rotatable cylindrical cam having its outer surface formed with relatively high and low portions and a double groove with an end portion and a portion spaced from the end, a follower for raising, lowering and swinging the tone arm movable in the grooved portions of the cam, a projection on the follower, a latch member engaged by the prolection of the follower when it is located in one portion of the groove, and clutch operating mechanism operated by the latch member for disconnecting the cam from the continuously rotating shaft.

27. In a disc record phonograph, arotatable table and a continuously rotating shaft, a tone arm pivoted to raise and lower and to swing to and from playing position, a rotatable cylindrical cam having its outer surface formed with a relatively high and lower position with a double groove near one end and remote therefrom, a follower for raising, lowering and swinging the tone arm engaging in the groove of the cam and) raised and lowered thereby, a latch engaged by the follower when it is raised in theadjacent portion of the cam, clutch mechanism for connecting the cam and the continuously rotatingshaft, a central magazine post for records having a supporting cam and an actuator therefor comprising a gear segment with an operating projection, an arm carried by the continuously movable shaft movable into the path of the pro-' jection, and means operated by said latch for moving the arm into the path of the. projection for operating the record engaging cam, and also for operating the clutch mechanism to disengage the clutch in timed relation as the latch is raised by the follower.

28. In a disc record phonograph, a rotatable table and a continuously rotating shaft, a tone arm pivoted to raise and lower and to swing to and from playing position, a rotatable cylindrical cam having relatively high and low portions and a. double groove in the outer surface with a portion adjacent one end thereof, a follower foractuating the tone arm engaging in the double groove of the cam for raising, lowering and swinging the tone arm, clutch mechanism for connecting the cam for two complete rotations with the continuously rotating shaft, an unclutching mechanism for disconnecting the clutch and a latch mechanism for operating the unclutching mechanism at the end of the cam engaged by the follower when it is raised in the said portion adjacent one end only of the cam groove but not engaged thereby when in the remote portion of the groove, thereby insuring two rotations of the cam before the unclutching mechanism is operated by the follower and latch.

ALBERT S. WELLS.

CERTIFICATE o1 coRREcTIofi. Patent No. 2,2 ,69 March 1 19m.

ALBERT s. 'wELIs.

It is hereby certified that error appears in the printed specification of the above numbered patent requiring .correcti on as follows Page 6, first column, line LL5, claim 18, for the words "lower type read --drum typeand that the said Letters Patent shouldbe readwith this correction therein that the same may conform to the record of the case in thePatent Office.

Signed and sealed this 27th day of March, A. n. 1915..

Leslie Frazer (Seal) Acting Commissioner of Patents.

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