US402805A - Sewing-machine motor - Google Patents

Description

(N0 ivlodeld 2 Sheets-Sheet 1. W. H. CLAYTON & O. A. LORING. SEWING MACHINE MOTOR.

Patented May 7, 1889.

fllforneys, I

' (No Model.) 2 Sheets-Sheet 2.

W. H. CLAYTON & G. A. LORING. SEWING MACHINE MOTOR.

No. 402.805. Patented May 7. 1889..

' N. PETERS. Mob-Lithographer, Washinglpn. D. C

UNITED STATES PATENT EE cE.

IITLIAM I-I. CLAYTON AND CHARLES A. LORING, OF ATLANTA, GEORGIA.

SEWING-MACHINE MOTOR.

SPECIFICATION forming part Of Letters Patent N0. 402,805, dated May 7, 1889.

Application filed Tune 20, 1888. Serial No. 277,616. (No model.)

To aZZ whom it may concern.-

Be it known that we, WILLIAM H. CLAY- TON and CHARLES A. LoRING, citizens of the United States, residing at Atlanta, in the county of Fulton and State of Georgia, have invented certain new and useful Improvements in Sewing-Machine Motors; and we do 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.

This invention has relation to motors for sewing-machines and the like, and is designed as an improvement upon the devices shown and described in the Letters Patent granted W. lI. Clayton, June '7, 1887, No. 364,216.

The invention will be fully understood from the following description, when taken in connection with the annexed drawings, in which Figure 1 is a side elevation of the motor constructed according to our improvements, with the drum-gear partly in section to show the spring therein, and the swivel of the brakerod also in section. Fig. 2 is a plan view of the same, the belt connections being omitted.

Referring by letter to the said drawings, A indicates the main frame, which is suitably formed to support the shafts of the various gears of the operating mechanism, and is pro vided with feet, as a,whereby it may be secured to a suitable base in a convenient position to be connected with a sewing-machine.

Secured to one side of the main frame are two brackets, 17, which have eyes to form bearings for a crankshaft, C, journaled therein. This crank-shaft, which has its crank D at one end, is provided with a vertically-fixed bevel-gear, E, which meshes with a verticallyfixed bevel-gear, F, secured 011 one end of the shaft G, passing through the drum-gear. The horizontal shaft G is suitably journaled in the main frame, and carries loosely thereon a drum-gear, II, which revolves around said shaft, the periphery of said drum-gear being provided with teeth for the purpose which will be presently described, and this horizontal shaft G is furthermore provided with a vertically-fixed ratchet-wheel, I, which is designed to be engaged and prevented from backward movement by a pivoted pawl, J, as shown.

K indicates a flat spring, which has one end secured to the shaft G and its opposite end secured to the drum-gear, as shown at (Z. It will thus be seen that'when motion has been imparted to the main operating-shaft G, through the medium of the crank-shaft and bevel-gearing, the spring will be wound upon the said shaft G, and prevented from unwinding by the paw1-and-ratchet brake or friction device previously described.

L indicates a horizontal shaft, which is provided with two vertically-fixed gears of different diameters, the smaller one of which meshes with the drum-gear and the larger one with a pinion, M, which. is also secured to a horizontal shaft, N, carrying a larger gear or pinion, P, and this-latter gear meshes with a smaller pinion, R, which is fixed to the shaft carryingthe drive-pulley S.

V indicates an endless drive-belt, which connects the pulley S'with the band-wheel IV of a sewing-machine or the like which is to receive motion.

In operation, when it is desired to connect the motor with a sewing-machine or other machine having a band-wheel it is simply nec essary to make the belt connection between the band-wheel of the machine to be run and the pulley S, after which the pawl J is thrown into the teeth of the ratchet I, when by turning the crank-handle D the spring will be wound upon the main operatingshaft G. Now it will be seen that the action of the spring in its tendency to unwind will rotate the drum-gear H around shaft G, and which, through the medium of the intermediate gear, will rotate the pulley S and drive the belt thereon.

Having described the construction and operation of the motor proper, we will now describe onr tension and brake device.

provided at one end with a friction eye or loop, 2', which receives the shaft T, bearing the pulley S, and at its opposite end with a hand-wheel, 76. This rod e is composed of two parts, which are united by a swivel, Z, so that While the threaded part may turn in the threaded eye the part having the friction-eye will move back and forth. It will thus be seen that by means of this rod a brake may be effected or the force of the motor and the machine to which it is connected retarded by turning the said rod in one direction, While the full eli'ect of the spring and its cooperating parts may be attained by turning the said rod in the opposite direction, so as to bring the friction-eye out of engagement with the shaft T.

Having described our invention, What We claim is In a sewing-machine motor, substantially as

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