US174764A

US174764A - Improvement in welted and covered seams

Info

Publication number: US174764A
Authority: US
Publication date: 1876-03-14
Anticipated expiration: 1893-03-14

Description

HELEN A. BLANCHARD.

WELTED AND COVERED SEAMS.

No.174,76%. Patented Ma'rchH, 1876.

E Invezfi'of I N, PEYERS, FHOTGLITNDGRAPHER. WASHINGTON. D Q

I'IED STATES PATENT oF'F eE;

HELEN A. BLAEG AED, 0F BOSTON, MASSACHUSETTS.

IMPROVEMENT lN WELTED AND COVERED S EAMS f Specification forming part of Letters Patent No. 174,764, dated March 14, 1876; application filed August 19, 1875.

To all whom it may concern Be it known that I, HELEN A. BLANOHARD, of Boston, Massachusetts, have invented an Improved Welt and Covered Seam, of which the following is a specification:

My invention relates to seams of cloth, leather, or any other suitable material, made by placing the two edges to be united, the one over the other, as shown in Figure 8 of the accompanying drawings, and then alternately stitching within and without the edge; afterward flattening out the seam so that the edges will abut, as shown by D D, Fig. 7.

In sewing leather, cloth, 860., with this scam, where it is subject to considerable chafin g or rubbing, it is desirable often to furnish protection to the parts of the threads exposed on the wearing-surface. This I do in two ways, viz: by the insertion of a piping or welt; by sewing a strip over the seam.

Fig. 10 of the accompanying drawings shows the two pieces tobe united, B Bplaced in position for sewing, with thewelt or piping inserted so as to project ali'ttlebe yond their edges. The sewing is then done on a machine adapted to sew zigzag, or over the edge, as, for instance, is shownin. my Letters Patent No. 161,471, the needle" passing alternately within and without the edges of B B', but each time through the piping A. Figs. 1 and'2 show the upper and under side of the seam thus made flattened out. The folded edge of the piping can be made to come on the inside or with the straight threads of the scam, instead of the diamond thread, by reversing its position from that shown in Fig. 10 to that shown Lil Fig. 9.

If. it is desirable to have the .welt or piping project only on one side of the seam, and the reverse smooth, it caneasily-be accomplished by placing the edge of thewelt or piping even with the edges B B,,Fig. 11, and then stitching within and without the edge. This seam,

flattened out, presents the appearance of Fig.

12, also of Figs. 3 and 4, which Show the upper and reverse side of the same scam, the

I can use a single piece of leather, or any other suitable material, (see Figs. 5 also a cord can be inserted in. the piping, if desirable.

As another method of protecting the ex-' and chafing of the exposed parts of the seam- 7 thread. They are particularly applicable to the seams of shoes, leather mittens, bags, and

heavy woolen goods or canvas. Still, I do not limit them to such.

I do not claim the simple insertion of a piping orwelt in a seam, nor the covering of aseam with a strip of suitable material sewed over the same; but in a seam made by alternately stitching within and without theedge of the material sewed, and then flattening the materials out so that the edges shall abut, as a protection to the exposed sewing-threads. Sometimes I enlarge the size of the piping, and after it has been stitched in, as before described, and the. seam flattened out, I also flatten out the piping, andstitch its edges down with one or more rows of stitching, by which I obtain the same general result and effect as with the covered seam; with the advantage, however, over the seam that if the outside stitching wears the strip is so.se-

cured by the overstitching that it will not hang loose. A very good result can be obtained with a single row of plain zigzag or other fancy stitching on the center of the piping. ()r, again, I can stitch the two edges. of

the covering-strip, one on each piece to' be seamed, then overseam and flatten out, by

which I have a covered seam and no stitches showing.

I claim and desire to Patent- 1. In combination with a seam made b stitching the superposed edges of the cloth, or other material, alternately within and and 6) secure by Iietters' HELEN A. BLANOHARD.

and zfolithe @purpouesoet fonth.

"2.In leather-sewing, the combination of strips B Bwith a seam made through their edges by? stitoh sewed alternately within and without the same, substantially as and for the ipnppoaosnsetzforth ,In testimopynhaneof I have hereuuto set In pt-esonco otf WM. LAWRENCE BIGELOW,