US2026222A - Method of finishing the marginal edge of leather or fabric articles - Google Patents

Description

Dec. 31, 1935. P. H. DIXON 2,026,222

METHOD OF FINI SHING THE MARGINAL EDGE OF LEATHER OR FABRIC ARTI ECLES I Filed April 18, 1933 4 /IIIII Patented Dec. 31, 1935 METHOD OF FINISHING THE MARGINAL EDGE OF LEATHER OR FABRIC ARTICLES Paul H. Dixon, Springfield, Ill.

Application April 18, 1932, Serial No. 605,823

Claims.

- This invention relates to a method of finishing the marginal edge of leather or fabric articl'es.

An object of the invention is to provide a 5 method for laying a basic-stitch parallel with the margin of the article to be finished, then laying stitches over and around the margin, locking said last named stitches in place by the basic stitch, and then laying rows of stitches parallel with the a marginal edge, which last named stitches are woven or interlocked with the stitches extending over the margin of the article. I Another object of the invention is to provide an efiicientmethod for finishing the marginal edges of shoes or other leather articles, as Well as the marginaledges of fabric articles, by the formation of a basic stitch that passes through the body of the article adjacent to the marginal edge to be finished, and forming in conjunction with the basic stitch overcast stitches that extend over and around the margin to be finished.

An additional object of the invention is to provide a stitch finish as above described inconnection with the backing or reinforcing of the marginal edge of the article, to provide a reinforcement for the stitches and material operated upon.

Additional advantages of the method will be apparent from the detailed description thereof taken in connection with the accompanying drawing, in which Fig. 1 is a top plan view of a fragment of the work to which the finish is applied by the method of the invention.

Fig. 2 is a vertical section through the work taken substantially on the line 2-2 of Fig. 1.

Fig. 3 is an edge view.

Fig. 4 is a cross-section taken on the line 4--4 of Fig. 1.

In the embodiment of the invention illustrated in the drawing, l indicates the marginal edge of an article of leather or fabric such, for example, as the edge of a shoe vamp or the edge of a cut-out portion in a shoe. Preferably along the marginal edge of the article to be finished and secured to the underface thereof is a tape 2 which may be applied by any suitable means in advance of the stitch finish. A filler ribbon 3 extends over the upper marginal edge around the edge and is turned back against the tape 2, said ribbon being applied in any suitable manner in advance of the laying of the stitch finish.

The stitch finish includes a row of basic stitches formed from a needle thread 4 and a bobbin thread 5. These basic stitches are preferably of thelock stitch type. By reference to Fig. 2, the separate stitches of the basic stitch are indicated by the letter S. It willbe noted that the needle perforations are spaced relatively far apart so that, in applying the basic stitch, 5 there is no undue weakening of the margin of the material to which the finish is applied. It will be noted also that this basic stitch preferably extends adjacent to the upper and lower marginal edge of the ribbon (land through the body 10 of the tape 2.

In conjunction with the laying of the basic stitch, there are a plurality of overcast stitches 6 which comprise a strand of thread laid in parallel pairs with loops formed at each end, which 15 loops are wound, respectively, about theneedle and bobbin thread of the basic stitch. The loops arevvoun'd about the threads forming the basic stitch before the basic stitch is drawn down so that, when the basic stitch is drawn dowiathe loops will be interlocked and closely held in connection with the threads of the basic stitch.

There is thus provided a continuous overcast row of stitches which lie relatively close to each other, forming an overcast binding securely held 25 in place along and around the margin of the work.

The stitches 6, running normal to the margin of the article, provide a series of weft threads in conjunction with which there may be provided a series of warp threads 1 running parallel with 30 the margin of the article and along the edge and margin thereof, said threads 1 being alternately Woven over and under parallel pairs of threads 6, as clearly indicated in the drawing. The warp threads 1 with the weft threads 6 form a tightly 35 woven marginal binding, forming a finished margin to completely cover the raw edge of articles of leather or fabric.

While the invention has general application, it is particularly useful for finishing shoes normally 40 finished by a ribbon French binding. The finish accomplished by the method of the present invention may be applied much more economically than can a French binding, so that a substantial economy in the manufacture of shoes of this type 45 is effected.

It should be understood also that the finish may be applied Without the provision of the backing tape-or filler ribbon; that is to say, the stitch finish may be used on the raw edge of the 50 material in many instances.

It should also be understood that the method of forming the finish by the use of the basic stitch and the overcast stitches can be employed without the provision of the interwoven warp threads 55 1. By applying the overcast stitches closely adjacent to each other, a substantially continuous marginal finish is produced.

In a co -pending application Ser. No. 605,824, entitled Stitch-forming machines, I have illustrated and described a machine whereby the binding including the basic stitch and the overcast stitches may be applied; and in a co-pending application Ser. No. 605,822, patented May 8, 1934, No. 1,957,633 entitled Weaving attachment for stitch-forming machines, I have illustrated and described the manner in which the warp threads 'I are laid in connection with the formation of the finish. While these two applications disclose preferred mechanism for accomplishing the process of the present invention, it should be understood that the process as such contemplates the use of any suitable mechanism whereby the invention of the present application may be carried out.

-What I claim and desire to secure by Letters Patent is:-

1. The method of finishing the marginal edge of work comprising the formation of basic stitches including a needle thread and a bobbin thread running parallel with and spaced from the edge of the work, progressively forming stitches across the edge and the margin of the work in interlocked connection with said basic stitches at opposite sides of the work and at right angles to the basic stitches to provide weft threads, and weaving with said weft threads a series of warp threads running along the edge of the work.

2. The method of finishing the marginal edge of work comprising the formation of a row of basic stitches parallel with and spaced from the edge of the work, progressively forming stitches across the edge and the margin of the work in interlocked connection with said basic stitches at opposite sides of the work and at right angles to the basic stitches to provide weft threads, and weaving with said weft threads a series of warp threads running along the edge of the work.

3. The method of finishing the marginal edge of work comprising the formation of a row of basic stitches parallel with and spaced from the edge of the work, progressively forming stitches across the edge and the margin of the work in interlocked connection with said basic stitches at opposite sides of the work and at right angles to the basic stitches to provide weft threads, and weaving with said weft threads a series of parallel warp threads running along the margin and also along the edge of the work.

4. The method of finishing the marginal edge of work comprising the formation of a row of basic stitches running parallel with and spaced from the edge of the Work, laying parallel pairs of weft threads across the edge and the margin of the work in interlocked connection with said basic stitches at opposite sides of the work in a relationship in which the threads of each of said pairs of threads are side by side and at right angles to the basic stitches, and weaving with said Weft threads a series of Warp threads along the margin of the work.

5. The method of finishing the marginal edge of work comprising the formation of a row of basic stitches running parallel with and spaced from the edge of the work, laying parallel pairs of weft threads across the edge and the margin of the work in interlocked connection with said basic stitches at opposite sides of the work in a relationship in which the threads of each of said pairs of threads are side by side and at right angles to the basic stitches, and weaving with said weft threads a series of warp threads running along the edge and also along the margin of the work.

PAUL H. DIXON.

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