US1331702A - Becobd-bbpeatilnre device fob talking-machines - Google Patents

Description

w. H. l 'lNK. RECORD HEPEATING DEVICE FOR TALKING'MACHINES.

APPLICATION FILED JUNE 24, 1918. 1,331,702. I Patented Feb. 24,1920.

3 SHEETSSHEET I.

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W. H. FINK.

RECORD REPEATING DEVICE FOR TALKING MACHINES.

' APPLICATION FILED JUNE 24,1918. 1,331,702. Patented Feb. 24,1920.

3 SHEETSSHEET 2.

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APPLICATION FILED JUNE 24. 1918.

Patented Feb. 24,1920.

' anuewl oz I14 /2. Fizz/70 WILLIAM H. FINK, OF DIAGONAL, IOWA.

RECGRD-BEPEATING DEVICE FOR TALKING-MACHIN 'ES.

Specification of Letters Patent.

Patented Feb. 24, 1920.

Application filed June 24, 1918. Serial No. 241,571.

To all whom it may concern:

Be it known that 1, WILLIAM H. FINK, a citizen of the United States, residing at Diagonal, in the county 01" Ring-gold, State of Iowa, have invented a new and useful Record-Repeating Device for Talking-Machines; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as'will enable'others skilled in the art to which it appertains to make and use the same. v

This invention relates to the art of talking machines, and particularly to an improved record repeating device, and one of the objects of the invention is to provide an improved mechanism of this kind having tone arm shitting means, and a device actuated by the tone arm for releasing said means, whereby said means may be actuated by a member engaging the center portion of the record, to move said means so that it may lift and return the tone arm to its initial position.

A. further object of the invention is to provide means for stopping the turn table at the completion of a plurality of-repetitions of the record.

A further object of the invention is the provision of means adapted to be adjusted, and to be actuated by the tone arm between difi'erent predetermined points of movements of the tone arm, whereby records of difi'erent diameters with pieces thereon of difierent' lengths may be played, and consecutively repeated.

A further object of the invention is the provision of means for adjusting the member, which engages the turn-table, so as to permit said member to engage the record at the proper time, in order that it may actuate said tone arm shifting. means, whereby said means may returnthe tone arm, to an initial position on the record.

In practical fields the details of construc tion may necessitate alterations, and the right to make such alterations as may be necessary is reserved, provided the alterations fall within the" scope of what is claimed. I V

The invention comprises further features and combination of parts as hereinafter set forth shown in the drawings and claimed.

In the draw1ngs:- Figure 1 1s aplan view of a convent1onal form of cabinet-talking machine, showing the record supporting table, thetone arm with its sound box, and the automatic repeating device as applied. 7

Fig. 2 is an enlarged detail View of the means carried by the repeating device for limiting the repetition of the record. Fig. 3 is an enlarged detail perspective view of the repeating apparatus detached.

Fig. 4: is a view in side elevation of said apparatus, showing a revoluble member just in the act of engaging the record on the turn-table.

Fig. 5 is a view in side elevation of the repeating apparatus, showing the revoluble member as having been rotated almost a complete revolution.

' I Fig. 6 is a detail view of a portion of the supporting beam for the revoluble member, showing the support for said beam.

. Fig. 7 is a detail view of the mounting of the brake-shoe for the turn-table.

Fig. 8 is a longitudinal sectional view through the tubular beam for the support of the shaft of the revoluble member, which engages the record.

' Fig. 9 shows a detail, sectional view of part of the pivot mechanism.

Referring more especially to the drawings 1 designates a conventional form of talking machine cabinet, which is designed to contain the operating mechanism (not shown) for the turn-table 2, which is carried by the center shaft 3, to which revoluble movement is imparted by the mechanism. (not shown). A suitable record 4 is shown as mounted on the turn-table, and 5 denotes a tone-arm, which is pivoted on the cabinet as at 6, so as to have a communicative connection (not shown) with the amplifier (not shown) but designed to be ordinarily carried in the cabinet. .The tone arm has the usual sound box 7 which is provided with a stylus 8 to play in the sound groove of the record at 9.

Secured bv means of screws or the like 10 to the cabinet 1 is a base plate 11, and rising upwardly from the plate is a stand ard 12, the upper end of which is provided with a right angle extending tubular portion 13. One end of this tubular port 13 has an inclined'slot llpthe inner end of which terminates in 'an" enlargement 15. Supported in the tubular portion 13 is a beam or rm 16, and which beam or arm is provided with a lateral pin 17, normally engaging the enlargement 15 of the slot 14.-

Mounted in the tubular portion 13 is a coil spring 18, one end of which engagesone end of the interior of said tubular portion 13 as at 19, and the other end portion of said spring bears against one end of the tubular arm or beam 16. 'By means of this spring the pin 17 is'held normally in en gagement with the shoulder 21 of the en largement 1 of the slot 1&. Rising up wardly from the tubular portion 13 is a lug 22, in Which a thumb screw 23 has its shank bearing against the pin 17, so that by adjusting the thumb screw 23 in one direction or the other, the tubular arm or beam 16 may be adjusted slightly rotatably in the tubular portion 13. The end part 24: ofthe tubular arm or beam 16 isprovided with a lateral beam or arm 25, and'mounted in the tral part is a plane surface, and the rubber beamor arm 25, is a shaft 26. One end of the shaft 26has a crank arm 27, and the other end isprovided with a disk 28. The hub of the disk is secured to the shaft 26 by means of thepin 29. Between the disk 28 and a second disk 30 a disk wheel is clamped by means of the pins 32. The circular marginal edge of the disk wheel has,

secured to it in any suitable manner a rubber band or the like 33. p This disk wheel 31 ring 33 is designed to engage this surface, as Wlll be explained later. However, the

supporting plate 11', the upright 12 and the arm or beam 16 are disposechwhereby the beam or arm 25 may extend across the center post or shaft 3, and support the disk wheel,

so as to permit freedom of movement of the tone-arm in its travel across the record, that is without contacting of the sound box with the disk .wheel. It is to be noted that by adjusting the thumb screw 23 the arm or beam 16 is adjusted rockably 1n the tubular portion 13, in order to regulate the distance between the flat portion 31 of the diskwheel 31 and the plane surface of the record. Pivoted at 35 to thearm orbeam 16 a trig 'ger plate 36, which angular in cross section. The two lugs 37 of this plate engage under the arm or beam 16, so as to limit the trigger plate in its rocking movement in one d rection or the other. The central angular arm 38 which depends downwardly from the trigger plate between the arms or lugs 37 has its lateral portion 39 arranged to support thecrank arm 27, as shown clearly in .Figs. 1 and 3. A leaf spring 40 isattached inany;v suitable manner as at 41 1 to the arm or beanr16, andhas its free end engaging one ofthe lugs 37 as at 42, thereby acting to hold the other lug 37 normally in contact with the beam or arm 16. Thepin 17 is provided with a lateral part terminating in a guide eye 43, in which the rod ist reciproeates. This rod eat is pivoted to the lateral end d5 of the crank arm 27. An extension t6 is pivoted at f? to the trigger plate 36. This pivot at? is of such construc tion as to frictionally bind the extension i6 and the trigger/plate. In other words the extension when moved will be held frictionally in position. A loop or member 48 is mounted upon the beam or arm 16, and is provided with an upstanding screw d9, provided with a thumb head 50. 'By means oi this screw 49, the loop or member48 may be held in difl erent adjusted positions on the and the extension l6 may be. adjusted, so that the tone-arm will play or move between the extension 46 and the screw l9, according to the terminals of the sound groove of the record. For instance the tone-arm after having oncebeen set in contact with the screw 49, and the stylus of the sound box at the starting of the sound groove, moves across the record, and when the stylus reaches the inner terminal of the sound groove, the tone arm will contact with the extension46. The frictional contact between the extension 46 and the trigger plate is suflicient to withstand the tension of the spring 40. .When the trigger plate 36 is tilted, by the arm contacting with the extension 46, the lateral part 39 of the lug or arm or beam 16. The loop or member a8 arm will be moved out of the path of the 7 end of the crank arm 27, in which case the weight ofthe crank arm 27 will over-balance the disk wheel, so that the disk wheel at the point indicated at 51 will engage the plane central surface of the record, and since the record and the turn table are still rotating, the disk wheel will receive revoluble movement from the records Consequently the shaft 26 will be rotated, also the crank I arm 27, and as the lateral part 45 of the crank arm approaches a position above the shaft 26, the rod 4 iwill engage and liftthe. tone-arm, and raise the sound box upwardly from the record. When the lateral part 45 of the crank arm 27 starts to rise above the shaft 26 the rod 42th will continue to lift the tone arm'until the lateral part 45 is returned to engagement with the lateral portion 39. When the end of the rod 4E4: connected with the end 41-5 of the crank arm 27 is swung in circle by the movement of the disk and the crank arm, the tone arm is raised andcarried toward the screw49, with; the stylus ofthe sound box in position to engage the beginning of the sound groove of the record. The tone arm may be shifted as many time a 'm y epe mltted awa ding to the strength and actionef the; spring of the motor (not shown), and if the motor is re-wound each time that it runs down, the tone-arm may be shifted substantially indefinitely.

However, a device is carried by the standard or post 12 of the repeating mechanism, for limiting the shifting of the tone arm to a predetermined number of times. F or instance a record may be repeated five times and at the end of the 5th time a brake device may be applied to the circular marginal edge of the turn-table. This device for limiting the repeating of a record comprises an angular plate 52 which is secured in any suitable manner to the post or standard 12, and has a lateral portion 53. This lateral part is provided with a slot 54. The lower edge of the slot 54: is provided with ratchet teeth 55, which are V-shaped. The

upper wall of the slot 54 is provided with depending elongated teeth 56 provided with beveled ends 57. An arm 58 projects from the plate 52 and its end portion carries an upright pivot pin 59. A plate 60 is pivotally mounted upon the pin 59 and has a brake foot 61 at one end, said foot having a brake shoe 62, for contact with the circular marginal edge of the turn table. The other end of the plate 60 has a roll or bent-over end 63, which carries an arm 64. A coil spring 65 is mounted upon the pin 59, so that its lower end will bear on the plate 60. The upper extremity of the spring 65 engages through an aperture 66 of the upper end of the pin 59 and its lower extremity engages one end of the roll 63 as at 67, acting to urge the shoe 62 toward the record disk. The shoe 62 is normally held away from contact with the record disk by the engagement of the arm 64 on the roll 63 with one of the ears 68 or 69 ,of the plates 70, which are welded to or otherwise carried by the.

lower part of the lateral portion 53 of the plate 52. These ears 68 and 69 are in parallelism, and mounted rockably in said ears are the crank ends 71 and 72 of the elongated tripping loop or rod 7 4. This tripping loop or rod 74 rests upon the upper edges of the plates 70. The crank end 72 of the tripping loop or rod has an upstanding arm 75. The guide rod 44 at one end has a loop 7 6 provided with a hook 77. Each time the guide rod 44 is actuated to a posi-' tion for returning the tone-arm, and finally assumes a position as shown in Fig. 3, the hook 77 contacts with the arm 75 for tripping the same. The spring not only acts to hold the arm 64' in engagement wlth the straight portion of each ratchet tooth, but also acts to hold the arm 64: between the teeth. When the arm 75 is tripped, the trip bar or loop 7 4 is tilted upwardly raising the arm 64 against the action of the spring 65. The teeth 56 are arranged so that their lower terminals (which are beveled) are opposite the spaces between the ratchet teeth. It is to be noted that when the arm 64: is raised, it will slide upwardly past the adjacent ratchet tooth on the lower wall of the slot, and will then contact with the end portion of the adjacent depending tooth 56,

and Will remain so engaged, until the hook 77 will disengage or pass by the arm 75. The arm 64: will then, owing to the action of the spring 65 and the force of gravity, move downwardly and engage the next ratchet tooth. It is'to be noted that there are enough teeth so as to permit the arm 64; to escape from one to the other intermittently, thereby moving the brake-shoe intermittently toward the turn table, and to permit the record to repeat five consecutive times, and when the stylus reaches the end of the record at the fifth repetition of the record the brake-shoe will contact with the circular marginal edge of the turn-table, thereby stopping the machine. One of the the teeth 56 is provided with a hook 78 and may be engaged by the arm 65 so as to hold the brake shoe constantly out of contact with the turn table, in fact, so that the tonearm may be shifted and the record repeated as many times as may be permitted by the strength of the spring of the motor.

The invention having been set forth what is claimed as new and useful is 1. The combination of a swinging tone arm and a revoluble record with a supporting member, a shaft mounted therein, a disk 011 said shaft having a flattened edge, an arm on said shaft, a rod pivoted to said arm for swinging and sliding movement, a catch device adapted to normally stand in position for holding said arm in position for maintaining the disk with its flattened ed e downward, an engaging member on. said catch device adapted to be engaged by the tone arm for causing the catch device to disengage the arm on said shaft for permitting it to drop downwardly to thereby cause the disk to engage said record, whereby said rod is caused to raise said tone arm and swing it to a different position.

2. A combination of a swinging tone arm and revoluble record with a shaft, a disk thereon having a flattened edge, an arm on said shaft, means for normally holding said arm in position with the flattened edge of the disk downward, said means being adapted to be disengaged by the moving of said tone arm for causing the disk to engage the record, and means actuated by the rotation of said disk in contact with said record for raising and swinging said tone arm to another position.

The combination of a swinging tone arm and a revoluble record with a supporting member, a shaft rotatably mounted therein, a disk on said shaft having a fiattened edge, an arm on said shaft, a catch device forsaid arm adapted to be disengaged by said tone arm when the tone arm swings'to; one position of its movement,

means whereby the rotation of said disk carries said tone arm from one position to another.

I the record supporting table subsequently to n'edetermined repetitions ofthe record, said brake means comprising a brake lever having a brake shoe, spring tensioned means for the brake lever, an escapement mechanism for the brake lever, and a tripping device actuated by the mechanism operated by the record for operating the eseapement mechanism. f V

In testimony whereof I have signed my name to this specification in the presence of two subscribing; witnesses.

- XVILLIAM H. FINK. Vitnesses Romany It. BAILEY, RAY O. BAILEY.

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