US721016A - Method of attaching soles of boots or shoes or securing together layers of material. - Google Patents

Description

No. 721,016. A PATENTBD FEB. 17, 1903.

i L. A. GASGRAIN- METHOD OT ATTAOHING SOLES OF BOOTS OR SHOES OR SEOURING TOGETHER LAYERS OF MATERIAL.

APPLICATION FILED JAH. '7, 1901.

UNITED STATES PATENT OFFICE.

LOUIS A. CASGRAIN, OF WINCHESTER, MASSACHUSETTS, ASSIGNOR TO UNITED SHOE-MACHINERY COMPANY, OF BOSTON, MASSACHUSETTS, A CORPORATION OF NEW JERSEY.

METHOD OF ATTACHING SOLES OF BOOTS OR SHOES 0R SECURING TOGETHER LAYERS 0F MATERIAL.

SPECIFICATION forming part of Letters Patent N o. 721,016, dated February 17, 1903.

Original application filed May 25, 1900, Serial No. 17,939. l Divided and this application iiled January 7', 1901. Serial No. 42,37@ (No model.)

To ctZZ whom, t muy concern:

Be it known that I, Louis A. CASGRAIN', a citizen of the United States, residing at Winchester, in the county of Middlesex and State of Massachusetts, have invented a Method of Attaching Soles of Boots or Shoes or Securing Together Layers of Material, of Which the following description, in connection with the accompanying drawings, is a specification, like characters on the drawings representing like parts.

This invention consists in an improved method of securing together layers of material. The method is especially adapted for securing the outer soles of boots or shoes to their inner soles, andit is that specific application of the invention which is shown in the drawings. In applying this method I employ my novel metallic fastening known as the double-clench' fastening. This fastening is shown in Letters Patent of the United States No. 669,025, granted February 26, 1901. As therein` shown, the fastening comprises a shank or body with a clenching-point and a hook-shaped head having a depending point.

In my experiments to find a satisfactory method of securing together layers of material, and particularly a method applicable to the attaching of the outer soles of shoes with metallic fastenings, I found that I could secure great holding power combined with a large degree of exibility in the stock by means of fastenings having when inserted in the material hook-shaped ends entering opposite sides of the material and a single strand of Wire connecting said hook-shaped ends. I further discovered that the most practical method of uniting layers of material in this ing its sole attached by my improved method,

-the shoe being partially broken out to show some of the inserted fastenings. Fig. 2 is a cross-section of the shoe represented in Fig. 1, showing the fastenings inserted in a channel in the outer sole, the lip at one side of the shoe being in place to cover the heads of the fastenings, the lip on the other side being opened. Fig. 3 is an enlarged View of the fasteningbefore itis inserted in the stock. Figs. 4 and 5 show my improved method as applied to the shank and fore part of the sole, respectively, and these figures also illustrate the general application of my improved method of uniting layers of material of any kind.

Referring to the drawings, s represents the upper of a shoe; s', the outer sole; s3, the inner sole, and 82a tap or slip-sole. The outer sole yis represented as provided with a channel formed by cutting into the sole, leaving the lip s4.

The novel fastening Which I employ in applying my novel method is composed of a shank or body g, having a clenching-point 23X and having a hook-shaped head g5, with a point g2 depending from the head.

In applying my novel method to attaching the outer sole of a shoe the shank of the fastening g6 is rst forced into the outer sole. In the latter part of the movement of the shank into the stock the point g2, depending from the head, enters and is'forcedinto the outer sole, embracing between itself and the shank Q6 a portion of the outer sole. While the depending point g2 of thehe'ad is entering the stock the clenching-point 23X of the shank emerges from the inner sole and is turned backwardly into the inner sole, a portion of the inner sole being embraced between the inturned point and the shank of the fastening.

This I have found to be the most practical method of attaching the outer soles of boots and shoes or securing together layers of material of any kind by means of fastenings which when they are inserted in the stock consist each of a hook-shaped end entering the outer sole or layer and a hook-shaped end entering the inner sole or 1ayer,with a single strand of Wire connecting said hook-shaped ends.

Having described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. The method of securing together layers of material which consists in inserting through said layers the shank or body of a fastening having a hook-shaped head with a depending point, forcing said depending point into one side of the stock and inturning or clenching the point of said shank or body into the other side of said stock, whereby the layers of material are secured together by a fastening having hook-shaped ends entering opposite sides of the material with a single strand of Vwire connecting said hook-shaped ends.

2. The method of attaching the outer soles of boots or shoes to their` inner soles which consists in inserting into the outer sole a fastening having a shank and a hook -shaped head with a depending point, forcing the point of the shank through the outer sole and inner sole, forcing said depending point of the head into the outer sole and clenching or turning back into the inner sole the point of the shank, whereby the outer sole is attached by a fastening having hook-shaped ends entering opposite sides of the material with a single strand of wire connecting said hookshaped ends.

3. The method` of attaching outer soles of boots or shoes to their inner soles, which consists in inserting into the outer sole a fastening having a shank and a hook-shaped head with a depending point, forcing the point of.

LOUIS A. CASGRAIN.

Witnesses:

GEO. W. GREGORY, NELSON W. HOWARD.

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