US1302342A - Motor. - Google Patents

Description

P. FARB.

MOTOR.

, APPLICATION FILED MAYB. 19]]- Patent-ed Apr. 29, 1919.

Z SHEETS$HEET I.

Invezzior P. FARB.

MOTOR.

APPLICATION FILED MAYB fiweizio 7- Patented Apr. 29,1919.

2 SHEETS-SHEET 2- iii FATENT @FFIQE IINGUS FARE, OF NEWARK, NEW JERSEY, ASSIGNOR TO SONORA PHONOGRAPH CORPORATION, A CORPORATION OF NEW YORK.

MOTOR.

Specification of Letters Patent.

Patented Apr. 29, 1919.

Application filed May 8, 1917 a Serial No. 167,379.

T0 at whom it may concern Be it known that I, PINCUS FARE, a citizen of the United States, and a resident of the city of Newark, county of Essex, and

State of New Jersey, have inventeol a certain new and useful Improvement in Motors, of which the following is a specification.

My invention relates to spring motors, and more particularly to motors for use in talking machines, and has for its object to produce a spring motor, the motion of which will be automatically arrested when the spring is being rewound.

This and further objects will more fully appear in the following specification and accompanying drawings considered together or separately.

I have illustrated one embodiment of my invention in the accompanying drawings, in which like parts are designated by similar reference characters, and in which,

Figure 1 is a side elevation of a talking machine motor provided with my invention;

Fig. 2 is a front elevation of the same; and

Fig' 3 is a detail view of the lock actuating mechanism.

In the drawings, I have shown a long running talking machine motor, of a well known type. The motor comprises the usual frame 1, spring barrel 2, winding shaft 3, winding gearing 5, transmission or unwinding gearing 1, 6, 7 and 7, governor 8, speed adjusting device 9, and turn-table shaft 10, on which a turn-table (not shown) is removably supported. The winding of the springs is accomplished by the engagement of the pinion 5, carried on the winding shaft 3, with a spur gear on the far end of the spring shaft. As the motor unwinds the spur 4 at the opposite end of the spring shaft rotates and by means of the gear train at that end of the motor drives a horizontal shaft which carries a bevel gear which drives a bevel pinion 7 on the turn-table shaft 10. The turn-table shaft carries the usual worm wheel which engages and drives a worm on a shaft which rotates the governor 8.

The winding shaft 3 is provided with a ratchet 11 adapted to be engaged by a pawl 12 to prevent the shaft from rotating as the spring is unwound. Loosely carried on the winding shaft is a keeper 13 which is mounted between a spring washer 14 and a rigid washer 15. The keeper is rotatable with the shaft by reason of the frictional engagement of the washers. The keeper is provided with a slot 16 with which engages a pin 17 carried by the pawl 12. When the winding shaft is rotated in the clock-wise direction, the keeper by its frictional engagement, will tend to rotate with it. This movement will tend to disengage the pawl from the ratchet teeth and as long as the shaft turns in the clock-wise direction, the pawl will be held away from the ratchet. When the above described movement of the shaft 3 ceases, the tendency of the shaft is 1 to rotate in the other direction by the unwinding of the spring. Such movement of the shaft will immediately be communicated to the keeper 13, the pawl will be drawn into the path of the teeth of the ratchet and the movement arrested.

Pivoted at 18 on the frame 1 is a lever 19, one end of which carries a foot 19 which bears against the keeper 13. The opposite end of the lever is bent at right angles and carries an elongated brake shoe 20. The brake shoe 2O normally lies in a plane parallel to the governor shaft and in proximity to the periphery of the brake disk 21 carried on the governor shaft. A spring 22 holds the lever 19 normally in position, as above described.

In operation, the first movement to turn the winding shaft in the clock-wise direction will raise the depending finger 23 of the keeper to release the pawl. This same move ment will raise the end of the lever carrying the foot 19 against the tension of the spring 22 and apply the brake shoe 20 to the disk 21 of the governor shaft and arrest the rotation of the said shaft and stop the motor.

As soon as the winding shaft starts to rotate in the anti-clock-wise direction, the keeper will be withdrawn from beneath the foot, the spring 22 will move the brake shoe from contact with the disk, and the motor will operate.

The brake shoe is elongated so that it may engage the disk irrespective of its position on the governor shaft caused by the speed of the motor.

While I have shown and described my invention as applied to a talking machine motor, I desire to have it understood that the invention is not limited to such use, but may be applied to any form of spring motor.

I have shown lever operating means working in conjunction with the winding shaft; it will be understood that it may be operated by any other part of the apparatus which may be rotated during the winding operation.

In accordance with the provisions of the patent statute, I have described the principle of my invention together with the apparatus which I now consider to represent the best embodiment thereof, but I desire it understood that my invention is not confined to the particular form of apparatus herein shown and described, and, therefore, I claim broadly the right to employ all equivalent instrumentalities coming within the scope of the claims, and by means of which objects of my invention are attained, and the new results accomplished, as herein set forth, as it is obvious that the particular embodiment herein shown and described is only one of many that can be employed to attain these objects and accomplish these results.

Having now described my invention, what I claim and desire to secure by Letters Patent is 1. A spring actuated motor, having a shaft for winding the spring, a pawl for preventing backward movement of the winding shaft, a member loosely carried on the shaft, means for frictionally engaging the member with the shaft, a connection between the member and pawl whereby as the mem ber is rotated in unison with the shaft the pawl will be released from engagement with the shaft, and means operated by the member when the shaft is rotated to wind the spring, for preventing movement of the motor.

2. A spring actuated motor, having a shaft for winding the spring, a pawl for preventing backward movement of the winding shaft, a member loosely carried on the shaft, means for frictionally engaging the member with the shaft, a connection between the member and pawl whereby as the member is rotated in unison with the shaft the pawl will be released from engagement with the shaft, and a lever cooperating with a rotary element of the motor, operated by the member when the shaft is rotated to wind the spring, for preventing movement of the motor.

Copies of this patent may be 3. In a spring actuated motor, a shaft for winding the spring, a member carried by the shaft and movable relatively thereto, means for clutching the member to the shaft whereby it will move with the shaft, a lever operated by the member, and a brake shoe carried by the lever.

4. In a spring actuated motor, a shaft for winding the spring, a governor actuated by the unwinding of the spring, a member carried by the shaft and movable relatively thereto, means for clutching the member to the shaft whereby it will move with the shaft, a lever operated by the member, means carried by the lever for engaging the governor and arresting the unwinding of the spring.

5. In a spring actuated motor, a shaft for winding the spring, a governor actuated by the unwinding of the spring, a member carried by the shaft and movable relatively thereto, means for clutching the member to the shaft whereby it will move with the shaft, a lever operated by the member, and a brake shoe carried by the lever, adapted to engage the governor and arrest the unwinding of the spring.

6. In a spring actuated motor, a shaft for winding the spring, a governor actuated by the unwinding of the spring, a member carried by the shaft and movable relatively thereto, means for clutching the member to the shaft whereby it will move with the shaft, a lever operated by the member, a brake shoe carried by the lever, adapted to engage the governor and arrest the unwinding of the spring, and means for disengaging the brake shoe from the governor.

7. In a talking machine, a spring actuated motor, a shaft for winding the spring, means whereby the unwinding of the spring will rotate the turn-table spindle of the motor, and means actuated by the winding shaft for automatically arresting the revolution of the turn-table spindle during the rewinding of the spring.

This specification signed and witnessed this 5th day of May, 1917.

PINGUS FARE.

WVitnesses WM. VARIN, FRANK J. COUPE.

Washington, D. U.

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