US12116A - Improvement in sewing-machines - Google Patents

Description

'y UNITED STATES` ALLEN B. WILSON, OF WATEBTOWN, CONNECTICUT, ASSIGNOR TO f PATENT OEETCE.l

' W. P. N. FITZGERALD.

, `IMPROVEMENT IN SEWING-MACHINES.

1 Specification forming part of Letters yPatent No. 12,116, dated December 19, 1854.

To all whom it may concern,.-

Beit known that I, ALLEN B. WrLsoN, of Watertown, in the county of Litchfield and State of Connecticut, have invented certain new and useful Improvements in Sewing-Machines; and'I do hereby declare that the following is a full clear, and exact description of the same, reference being had to the accompanying drawings, 'forming part of this specication, in which- Figure I vis a side elevation of the machine; and Fig. 2 is a transverse vertical section of thesame, taken through the parts which form the stitches, and represents the peculiar arrangement for feeding the cloth along, in which said improvements consist.l

To enable those skilled in the art to make and use my invention, I will describe its construction and operation.

The working parts of the machine are all attached to or carried by a suitable framework, A A B B, which is secured firmly to a table or bench. The mandrel C, resembling in a certain degree the mandrel of a lathe, is fitted in suitable bearings in the framework A A BB, and is suitably turned or provided with a pulley, D, to receive the rotary motion, through a drivingband, from a driving-wheel moved by a treadle under the table, or by any suitable means.r

The operative parts of this machine and its construction are substantially the same as those described in Letters Patent of the United States, bearing date the 15th day of June, A. D. 1852, granted to Nathaniel Wheeler,'A. B. Wilson, Alamson Warren, and S. I?. Woodruff, of Watertown aforesaid.

The material to be sewed is laid upon ay plate, Q, which is secured to the standards `A A, and forms a small table. It is held down by a small pressing-spring, which is at-.

tached to the end of an arm, B, which is secured to the back of the frame-work, and extends over the top of the machine.y In the front end of the pressing-spring f there is `a slot, g, cut to allow the needle to pass through.

An opening corresponding to the slot gy, is cut through the plate Q for the same purpose.

The arrangement for feeding the cloth along is shown in Fig. 2, and consists of a feed-bar, S. It is a straight liat bar with a slot extending nearly itswhole length and with aprojecisa prominence. This prominenceextends also to the front. By the revolution of the mandrel the prominence of the cam is made to act on the ,under side of the spring-bar k and force/upits teeth or notches in contact with the cloth at the same time that its front part acts on the projection t' and moves the feed-bar klongitudinally forward toward the plane of theI needles motion, carrying the cloth with it. 'Ihe movement of the feed-bar while its points or notches are above the surface vof the plate Q and in contact with the cloth causesthe cloth to move forward the proper distance for a stitch at each ascent of the needle, the bar being returned by the pressure of the spring n, attached to the framework, against theprojection after the prominence m on the cam has passed, the notches or teeth being freed from the cloth as soon as thelprominence of the cam is clear' of the spring-bar, by the Yforce of the spring portion of said bar.

What I claim as my invention, and desire to have secured secured to me by Letters Patent is- The device above described in asewing-machine forfeeding the cloth along, consisting of a bar furnished with points or notches, having a vertical or up-and-down motion for fastening the cloth upon and, releasing it from said bar by striking it against aplate or spring, and a lateral' motion ormotion forward and back for feeding the cloth along after each stitch, substantially as above set forth.

. ALLEN B. WILSON.

Vitnesses: f

HENRY BRoNsoN,

.FEEDL HUED,

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