US52646A - Improvement in sewing-machine hemmers - Google Patents

Description

G. C. VERHISER.

Sewing Machine Hemmer.

N0. 52,646. Patented Feb. .13. 1866.

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GEORGE O. OVERHISER, OF IONIA, MICHIGAN, ASSIGNOR TO HIMSELF AND JACOB O. ROBIE, OF BINGHAMTON, NEV YORK.

IMPROVEMENT IN SEWING-MACHINE HEIVHVIERS.

Specilication forming part of Letters Patent N0. 52,646, dated February 13, 1866; antedated February 5, 1866.

To all whom it may concern:

Be it known that I, GEORGE C. OvEnHrsER, of Ionia, in the county of Ionia and State of Michigan, have invented a new and useful Improvement on a Hemmer for Sewing-Machines, by the use of which hems of various widths can be accurately laid and readily made 5 and I hereby declare that the following is a full, clear, and exact description of the construction and operation of the same, reference being had to the annexed drawings, making a part of this specification, in whichl Figure 1 is a perspective view. Fig. 2 is a view of the apparatus inverted, with the sliding gage removed. 3 is a plan of the sliding gage as it appears when detached from the frame. Fig. 4L is a transverse section through the middle of the hemmer.

Like letters represent like parts in all the figures.

A is the base of the frame, through which a thumb-screw passes to secure the apparatus on the sewing-machine. B is the thumb-screw passing through the base. O is the opening or slot in the base through which B passes. D is the steady-pin in under side of base A. E is the upright part of the base of the frame, over the end or top of which apressure-spring passes. F shows the position of the hinge on E. G is the bar between the clamp end and hinged end of the frame. H is the pressurespring on the bar G. I is the smoothingspring under the bar G. K is that part of the sliding gage which passes through the clamp end ofthe frame. Lis a piece attached to the free end of the bar G for supporting the hernmer and guiding the sliding gage M. It is made in two parts, and is made to act as a clanip on M. P is athumb-screw for opening the clamp L. M are the arms of the sliding gage which enters the clamp, and K is a part of the same, projecting therefrom at right angles; Nis the heminer.

I construct this improvement on a hemmer of brass and steel or any other suitable material.

The-apparatus is secured on lthe plate or table of the sewing-machine by means of the thumb-screw B passing through the base of the frame A. The opening or slot O, Fig. 2,

is made oblong for the purpose of permitting the frame to be moved when the thumb-screw B is loosened, so that the stitch may be placed upon the edge of the hemor near it.

In addition to the thumb-screw B, I employ a steady-pin, D, Fig. 2..in the under side of the base A, for keeping the hennning device from turning to one side.

On the top of the upright part of the base of the frame E is a hinge, F, by means of which the bar G is attached to the upright part and base of the frame and made movable. On this bar G a spring, H, (the end ot' which is attached to E,) bears, thus keeping the gage firmly on the material while it is passing under it to the folding-guide or heinnier N.

The smoothing-spring I is placed parallel with and under the bar G, with one end attached to the base of the frame A, while the other end presses upon the arm K of the sliding gage at the point where it passes through the clamp-jaws. This spring I keeps the folds of the work smooth as it passes to the hemmer N.

On the end of the bar G which is opposite to its hinged end there is a clamp, L, attached, with beveled jaws, which can be compressed by a thumb-screw passing through the hole P, for the purpose of securing the sliding gage in required positions. When the sliding gage K M is adjusted to give the required width to the hem its lower side is flush with the lower side of the jaws of the clamp L, so that the lower fold of the hem may pass under it freely, and the work is guided ina straight line by the arm W of the sliding gage, which is between or inside the fold of the hem.

On the clamp-jaw L, which is toward the needle of the sewing-machine, and as'near the smoothing-spring I as possible, the heminer N is attached, with its lower side Hush with the lower side of the sliding gage K M. As one fold of the cloth is made by the turn over the arm M of the sliding gage, it is only necessary to give it one turn more in this hemmerN to complete the hem. This permits the hemlner N to be simply constructed with a single turn inside, as shown in the transverse section through the y middle ofthe hein mer, Fig. 4. rlhe hemmer N is made broader at the base, near the smoothA ing-spring I, Where the cloth entersit, than at the point Where the olotli emerges (with the hem turned ready for stitching) for the purpose ot' turnin g the hem.

When I use my improvement I attach it to the plate or y table ot' a sewing-machine by means ofthe thumb-screw B in the base ot' its frame; set the sliding gage K M to give the required Width of hem and secure it in that position by means of the thumb-screw in the jaws ot the clamp L; then pass the oloth or other material to be hemmed under the sliding gage K M, and, folding the side of the cloth over the guiding-arm M of the sliding gage and under the smoothing-spring I, enter the end of it in the hemmer N near the smooth-

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