US219437A - Improvement in sewing-machine motors - Google Patents

Description

UNITED STATEs 4PATENT OEETGE.

JOHN M. C. BENNETT, OF LANSING, MICHIGAN, ASSIGNOR OF ONE-HALF' HIS RIGHT TO AUGUSTUS F. WELLER, OF SAME PLAGE.

IMPROVEMENT IN SEWING-MACHINE MOTORS.

Specification forming part of Letters Patent No. 219,437, dated September 9, 1879 application iiled July 22, 1879.

To all whom it may" concern:

Be it known that I, Jol-INM. C. BENNETT, of Lansing, in the' county of Ingham, and in the State of Michigan, have invented certain new and useful Improvements in Sewing-Machine Motors; and do hereby declare that the following is a full, clear, and exact description and use the same, I will now proceed to cle-- scribe its construction and operation, referring to the annexed drawings,in Which- Figure l is a side View, and Fig. 2 an end View, of the motor.

A represents a suitable frame-Work, in which is an ordina`ry train of gearing, B, operated by means of a spring. O. D is the last wheel in the train of gearing, which wheel is located outside of the frame-work. lzy is the shaft on which said Wheel is secured, the outer end of Which shaft has the end ofa springarm, I, placed over it, the other end of said springarm being permanently secured to the side of the frame-work.

The cogwheel D meshes with a pinion, c, on one end of a shaft, b. On the other end of this shaft is a crank-Wheel, E, which is to be connected by a pitman with the crank wheel of the sewing machine, or by any other suitable means so connected.

To an arm, G, projecting from the frame A is pivoted a brake-lever, F, which has on its inner end a protuberance or shoe, d, to be brought in contact with the side of the springarm I, and force the same with more or less force against the side ofA the wheel D, to regulate the speed or stop the machine, as de-. sired.

H is a ratchet attached to the frame-work for holding the brake-lever.

This motor can be governed or regulated at will by placing the lever in different notches on the ratchet-bar, because it will readily be seen that the variable position of the lever F in the diiferent notches of the ratchetbar H Will cause a variable pressure ofthe shoe d on the spring-arm I, and, consequently, on the Wheel D.

vThe brake-lever F runs forward under the table, and is handled by the right hand of the operator as he sits facing the machine.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is

In combination with a sewing-machine motor composed of a train of gearing, B, operated by a spring, O, and having the Wheel D outside of the frame work, the spring arm I and pivoted brake-lever F, With brake-shoe d, and the ratchet H, substantially as and for the purposes herein set forth.

In testimony that I claim the foregoing I have hereunto set my hand this 30th day of June, 1879.

JOHN M. O. BENNETT.

Witnesses:

' E. A. OsnoRN,

WM. W. OsBoRN.

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