US1348136A - Ernest w - Google Patents

Description

E. W. DUNBAR.

SHOE.

APPLICATION FILED SEPT. 25, I919.

Patented July 27, 1920.

ERNEST W. DUNBAR, OF

HUDSON, MASSACHUSETTS, ASSIGNOR TO APSLE-Y RUBBER COMPANY, OF HUDSON, MASSACHUSETTS, A CORPORATION OF MASSACHUSETTS.

SHOE.

Specification of Letters Patent.

Patented July 27,1920.

Application filed September 25, 1919. Serial No. 326,323.

To all whom it may concern Be it known that I, ERNEST W. DUNBAR, a citizen of the United States, residing at Hudson, county of Middlesex, State of Massachusetts, have invented a certain new and useful Improvement in Shoes, of which the following is a specification, reference being had therein to the accompanying drawings.

The invention relates to the manufacture of shoes, more especially canvas shoes having a rubber sole, and still more particularly relates to the welt, both in its construction and in the manner of incorporation of the welt into the shoe.

The invention will be fully understood from the following description when taken in connection with the accompanying drawings, and the novel features thereof will be pointed out and clearly defined in the claims at the close of this specification.

In the drawings, Figure 1 is-a perspective view of a portion of a shoe embodying the invention.

Fig. 2 is a perspective view of a welt strip before it is folded into the form of the Welt.

Fig. 3 is a perspective view of a portion of the welt after the strip has been folded.

Fig. 4 is a cross-sectional view of an inner sole having a facing of rubberized cloth for use in the manufacture of a shoe embodying the invention.

.Fig. 5 is a sectional View showing the canvas top assembled with the inner sole and lasted, the canvas 'top being stapled to the inner sole and the inner sole secured to the last.

Fig. 6 is a sectional view showing the welt and canvas top and inner sole stitched together.

Fig. 7 is the canvas edge after the welt has been sewed.

Fig. 8 is a sectional view showing the outer sole cemented to the inner sole.

Fig. 9 is a sectional view showing the welt folded down to cover the edge of the inner sole and the projecting flange of the outer sole. Referring now to the drawings, the welt strip before it is folded is shown in Fig. 2 and consists of a rubber coated strip of rubberized cloth, the upper layer 1 representing the rubberized cloth and the under layer 2 representing the layer of rubber, the two layers being adhesively connected together.

a view similar to Fig. 6 showing top and insole trimmed at the' The strip of cloth and the strip of rubber are of equal width there being no projecting portion of either rubber or cloth. This strip may be made in the first instance of the requisite width, or the combination of rubber and rubberized fabric may be made up as a sheet and then stripped into the requisite width as desired. The strip thus formed as shown in Fig. 2 is then folded over in the middle into the form shown in Fig. 3, the rubber coating being on the outside so that there is thus formed a welt W having a core composed of the double thickness of the rubberized fabric and a covering of the sheet rubber on both the upper and the under face and around one side edge of the core as will be seen from the fold 3 in Fig. 3, while the opposite edge exposes the fabric intermediate the upper and lower facings of rubber.

The inner sole may be of any suitable material, as shown in Fig.4. It consists of a body portion 4 of cork or other suitable substance covered on its upper surface by a layer 5 of rubberized fabric.

In the manufacture of the shoe, the inner sole 4 is fastened to the last in well-known manner as by tacks 7, and the .upper 8 which is preferably of canvas, as already stated, is drawn over the last 6 and secured to the inner sole 4 in any suitable manner, as for instance by staples 9.

After the upper and inner sole are lasted,

there is a projecting flange 10 of the canvas upper extending some distance beyond the edge of the inner sole4. The Welt in its folded form, as shown in Fig. 3, is then applied to the upper face of the flange 10 of the canvas upper with the folded edge of the welt inward against the canvas upper and the exposed edge of the rubberized fabric core extending outward, as shown in Fig. 6. Then the shoe is sewed by stitches 11 which pass through the welt, the flange of the canvas upper and the insole, as shown in Fig. 6. The welt and the canvas upper both extend some distance out beyond the edge of the inner sole 4 at this point in the manufacture. The canvas top and insole are then trimmed down, as shown in Fig. 7, leaving the welt still extending some distance out beyond the edge of the trimmed upper.

Then the outer sole 12 is applied andcemented to the inner sole. Then the protruding portion of the welt is turned to cover the outer edge of the inner sole 4 and then turned outwardlying in contact with the face of the protruding portion of the outer sole and then the welt and outer sole are trimmed off at the edge so as to be flush with each other.

After the shoe has thus far been completed, the entire shoe is vulcanized so as to firmly unite the welt, the outer sole and the inner sole together.

The core of rubberized fabric of the welt will thus extend the entire width of the welt.

It has heretofore been attempted to make a canvas rubber-soled shoe having a rubber welt with a fibrous core for a portion only of its width, namely for about one-third of its width and only in that portion which lies on the lateral portion of the upper but not extending around the corners where the welt is turned over the edge of the inner sole 4 or around on to the face of the outer sole 12. When the partial core is employed the result is that in the wear of the shoe in a short time there comes a crack in the welt along the corner 13 where it turns down over the edge of the upper and the welt is apt also to crack along the angle ll'where it turns to lap on to the outer sole. By extending the core through the full width of the welt, as shown and described in the present application, the entire welt is strengthelned and gives very much longer life to the s oe.

What I claim is 1. A shoe having a canvas upper, an inner sole, an outer sole and a welt, the canvas upper having its lower edge portion extended outward over a projecting portion of the inner sole, the welt overlying the lateral extension of the upper, said welt,-upper and inner sole. being secured together by stitches,

and an outer sole secured to the inner sole and projecting laterally beyond the edge of the inner sole, said welt consisting of an inner and outer layer of rubber and an intermediate core of fabric, said core extending to the outer edge of the welt.

2. A shoe having a canvas upper, an inner sole, an outer sole and a welt, the canvas upper having a flange portion which extends outward lapping onto the inner sole, the welt overlying the lateral flange of the upper, an outer sole secured to the inner sole and projecting laterally beyond the edge of the inner sole, said welt consisting of an inner and an outer layer of rubber and an intermediate core of fabric, said core extending to the outer edge of the welt, said welt covering the face of} the flangeof the upper and being bent down to cover the edge of said flange of the upper and the edgeof the inner sole, and also bent to cover the flange face of the outer sole.

3. A shoe having a canvas upper, an inner sole and an outer sole, the upper and the inner sole having laterally extending portions which overlap each other, the outer sole extending laterally beyond the edge of the inner sole and upper, and a welt which overlies the laterally extending portion of the upper and is thence bent to cover the outer edges of the upper and the inner sole and is thence bent to overlap the upper face of the lateral extension of the outer sole, said welt comprising an upper and a lower layer of rubber and an intermediate core of fabric, said fabric core extending substantially the full width of the welt, the inner sole, the upper and the welt all being united together by stitching.

4. A shoe having a canvas upper, an inner sole, an outer sole and a welt, the canvas upper having a laterally extending edge portion which overlies the face of the inner sole near its edge, and an outer sole projecting laterally beyond the edge of the inner sole and upper, said welt consisting of an upper and a lower layer of rubber and an intermediate core of fabric, said core extending to the outer edge of the welt.

5. A shoe having a canvas upper, an inner sole, an outer sole and a welt, the canvas upper having a laterally extending edge portion which overlies the face of the inner sole near its edge, and an outer sole projecting laterally 'beyond the edge of the inner sole and upper, said welt consisting of an upper and a lower layer of rubber and an intermediate core of fabric, said core extending to the outer edge of the welt, said welt, upper and inner sole being secured to the upper by fastenings which pass through the welt, upper and inner sole.

In testimony whereof I aflix my signature.

ERNEST w. DUNB'AR.

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