US182879A

US182879A - Improvement in feed mechanisms for sewing-machines

Info

Publication number: US182879A
Authority: US
Publication date: 1876-10-03
Anticipated expiration: 1893-10-03

Description

W. W. WILLIAMS & N. S. WAKEFIELD.

FEED MECHANISM Fon SEWING MACHINE.

N PETERS. FHOYO-LITHOGEAPHZR, WASHINGTON. D C

UNITED STATES PATENT OFFICE.

WILLARD W. WILLIAMS AND NATHAN S. WAKEFIELD, OF OAMDEN, N. Y.

IMPROVEMENT IN FEED MECHANISMS FOR SEWING-MACHINES.

Specification forming part of Letters Patent N o. 182,879, dated October 3, 1876; application tiled April 18, 1876.

' change the direction of its horizontal movement) around the needle-bar, so that it may be turned to the extent of a whole or a number of circles in either direction, as will be more fully described hereinafter.

Figure lis a side elevation, partly in sec tion, and Fig. 2 is an inverted view of our invention.

A represents a suitable cylinder, which is made in two parts, and designed to be secured together by means of the screws and ears B O. The two heads of this cylinder are made separate therefrom, and are united together by means of atube or sleeve, Ef, through which the needle-bar F passes.

Passing down through this cylinder' to one side of the needle-bar is the feed-foot G, the upper end of which is held pressed upward against the head H of the lever I by a spring,

V a, which lever I is held pressed downward by the coiled spring b.

Placed inside of the cylinder A is the conical sleeveJ, which :is made nearly as large as the inside diameter of the cylinder, and which as a hole through its center for the passage of the tube or sleeve E', and a slot through one side for the passage of the feed-foot G, the incline K being at the bottom of said slot. Between the top of this sleeve J and the head D is placed a coiled spring, N, which holds the sleeve pressed down on top of the ring L formed on the front end of the regulating-arm M. This ring L is placed Wholly inside of the cylinder A, and has both the needle-bar F and feed-foot G operating inside of it. Where this ring is not enlarged sufficiently to allow the feed-foot G to operate inside of it, as here shown, the two heads D E, which are turned by means ofthe handle P, and carry the feedfoot Gr around with them, can be turned only about one-half around, when the thread has to be cut, the work taken off the horn, reversed, then put on again, and the machine again started.

By means of the arrangement of parts here shown, continuous circles can be sewed in either direction, and thus the range ofthe machine more than doubled.

Having thus described our invention, we claim- The combination of the two heads D E, connected by the sleeve E', through which the needle-bar passes, the conical sleeve J, slotted to receive the feed-foot Gr, the arm M, provided with the ring L, said ring being placed inside of the cylinder A, and the feedf0ot operated within the ring L by the sleeve J, substantially as and for the purpose set forth.

WILLARD WATSON WILLIAMS. NATHAN STOEL WAKEFIELD. Witnesses:

R. S. HOWELL, W. R. PADDocK.