US141993A - Improvement in hemmers for sewing-machines - Google Patents

Description

Patented August 19, 1873.

r w L I Witnesses AM. PI/OTd-L/THOGHAPH/C co. NM'OSBGRNELP Princess ATEN FFICE.

FRANK GASWELL, or MOLINE, ILLINOIS.

IMPROVEMENT IN HEMMERS FOR SEWING-MACHINES.

Specification forniin g part of Letters Patent No. 141,993, dated August 19, 1873; application filed June 25, 1873.

To all whom it may concern:

Be it known that I, FRANK GAswnLL, of Moline, in the county of Rock Island and in the State of Illinois, have invented certain new and useful Improvements in Hemmer for Sewing-Machines and do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings and to the letters of referrence marked thereon, making a part of this specification.

The nature of my invention consists in the construction and arrangement of a hemmer for sewing-machines, as will be hereinafter more fully set forth.

In order to enable others skilled in the art to which my invention appertains to make and use the same, I will now proceed to describe its construction and operation, referring to the annexed drawing, in which- Figure 1 is a perspective view, and Fig. 2 a front view, of my entire hemmer with spring attached. Fig. 3 is a perspective view of the hemmer proper. Fig. 4 shows the plate of which the same is formed; and Figs. 5 and 6 are sections, showing modifications of the same.

A represents a T-sh aped casting, the long arm ofwhichis slotted longitudinally, as shown, and a set-screw passes through said slot into the bed of the machine to hold the casting in place. Along the outer edge of the shorter arms of the castingis a flange, 12, which acts as a guide for the material. This casting A, with its flange, may be used separately as an ordinary guide for sewing. B represents the hemmer proper, which is made of a strip of sheet metal of proper width, having at one end a flange, d, turned upward and slightlyinward, as shown particularly in Figs. 1, 2, and 5. The plate is then bent backward at f, so as to be doubled, and then bent in proper shape to form the double scroll f e. The bend at f being narrow, the cloth is not turned more than what is necessary but, as the bend at e is wide, it is apt end of said wire bent toform a blunt corner,

which will not catch on the cloth. The hemmers proper, B, thus constructed are made of various sizes, and arranged in sets, one set belonging to each attachment. The hemmer B is slipped under the front short arm of the casting A, said arm fitting between the bend f and the flange d as in a dovetail, and the hemmer can readily be removed and another substituted when desired to change the width of the hem. From the front short arm of the casting extends an arm, 0, parallel with, but in a direction opposite to, that of the long arm of the casting. This arm 0 is, on its upper side, provided with short screw-studs, on which is placed a flat spring or spring-plate, D, held by means of thumb-nuts h h, as shown. This spring or spring-plate may be of any desired width, and is used for the purpose of flattening the hem as it leaves the hemmer, and before the needle passes through it. This may be used with any hemmer of any construction, and on any machine. shown in Fig. 1 is provided with an elongated slot, so that it can be moved outward from the flange b on the casting A, thereby allowing a cord to be sewed into the hem, if so desired. Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is-

The combination of the castingA, with flange b and arm 0, double-scroll hemmer B, constructed as described, with flange d, bends f e, guards i, and wire 2, and the spring-plate D, all substantially as and for the purposes herein set forth.

In testimony that I claim the foregoing I have hereunto set my hand this 20th day of May, 1873.

FRANK OASW ELL.

Witnesses J. 'l. BROWNING, NELsoN OAswELL.

The narrow spring.

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