US1030628A - Shank-stiffener. - Google Patents

Description

E. E. WINKLEY.

SHANK STIPFBNER.

APPLICATION FILED umm, 1912.

1,030,628, Patented June 25, 1912.

www Wm SHANK-STIFFENER.

To all whom it may concern:

Be it known that I, ERAsTUs E. VVINKLEY, a citizen of the United States, residing at Lynn, in the county of Essex and State of Massachusetts, have invented certain new and useful Improvements in Shank-Stiffeners; and T do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

' This invention relates to the manufacture of boots and shoes.

As is Well known to those skilled in the art, the outseam of a shoe often rips at the shank owing to the strain to which the ontseam is subjected as the shoe is fiexed back and forth during its wear. This strain is caused by the slipping of the outsole over the insole during the flexing of the shoe.

The object of the present invention is to prevent t-he ripping of the outseam of the shoe at the shank. To the accomplishment of this object a feature of the present invention contemplates the provision of a fastening consisting of a body portion arranged to be interposed between the inner and outer soles at the shank of a shoe and provided with oppositely disposed prongs for entering the inner and outer soles respectively. Such a fastening firmly unites the inner and outer soles at the shank of the shoe and thus relieves the outseam of the ripping strain.

In its bro-ader aspects the invention contemplates the insertion of the fastening into the shoe in any suitable manner, but on account of the economic manner in which the insertion may be carried out, the fastening is preferably loosely interposed between the inner and outer soles preliminary to the sole laying operation so that the oppositely dis posed prongs may be caused to enter the inner and outer soles under the pressure of the sole laying form.

Broadly considered the inner and outer soles may be secured together at the shank of the shoe with a series of independent fastenings, each of which consists of a body portion provided with oppositely disposed prongs thereon.

Tn the preferred form of the invention the body portion of the fastening is constructed as a shank stiffener which carries the prongs for uniting the inner and outer soles together at the shank. This manner Specification of Letters Patent.

Application filed January 24, 1912.

Patented J une 25, 1912.

Serial No. 673,030.

of forming the fastening is an importantfeature of the present invention.

The invention contemplates providing the shank stiffener with the prongs in any suitable manner found desirable or expedient, blut in order to posit-ion the prongs eectively' the prongs are arranged in couples along the length of t-he stiffener, the prongs of each couple being reversely arranged relatively one to the other.

The invention also contemplates shaping the prongs in any suitable manner, but in order that the prongs may clench within the inner and outer soles, they are preferably bifurcated so that they are caused to enter the soles and distend therein under the pressure o-f the sole laying operation.

In the accompanying drawings illustrating the fastening in the best form now known to the inventor, Figure l is a side elevation, partly in section, of the fastening formed as a shank stiffener before its incorporation in a shoe; and F ig. 2 is a longitudinal sectional elevation of a shoe showing the shank stiener incorporated therein and the inner and outer soles firmly united together at the shank.

Referring now to the form of the invention illustrated in the drawings, the fasten ing comprises a body portion consisting of a flat metal strip 1 provided with a series of holes 2 arranged in couples along the lengt-h of the strip. The metal strip is bent longitudinally to adapt it for use as a shank stiffener. Each of the holes 2 is fitted with a copper rivet 3, the cylindrical shank of which is slotted to form a bifurcated prong 4. As shown in the drawings, the bifurcated prongs are arranged in couples along the length of the strip, the prongs of each couple being reversely arranged relatively one to the other.

When the lasted and sewed shoe is ready to receive the outsole, the shank` stiffener provided with the oppositely disposed prongs 4, is loosely placed in position on the inner sole at the shank of the shoe with the prongs on one side of the stiener resting upon the insole. The cemented outsole is placed upon the inverted shoe with the shank of the outsole resting on the vertical prongs. The shoe is then subjected to pressure in the usual manner to laythe sole. During this operation the bifurcated prongs enter the inner and outer soles and distend under the sole laying pressure and finally become clenched Within the soles. The inner and outer soles are thus lirrnly fastened together/through the shank stiffener. By securing the inner and outer soles together at the shank, the seam uniting the outer sole and welt is relieved of the strain Which Would otherwise come upon it When the shoe is flexed during the Wearing of the shoe.

The nature and scope of the present invention having been indicated and one form having been specifically described, what is claimed as new is l. A fastening for shoes for preventing the ripping of the outseam consisting of a body portion adapted to beinterposed between the inner and outer soles at the shank of the shoe and provided with oppositely disposed prongs for entering the inner and outer soles respectively, substantially as described.

2. A fastening for shoes for preventing the ripping of the outseam consisting of a body portion adapted to be loosely interposed between the inner and outer soles preliminary to the sole laying operation and provided with oppositely disposed prongs for entering and clenching Within of the outseaIn, substantially as described.

4. A shank stiffener for shoes consisting of a inetal strip provided With prongs constructed and arranged to enter and clench Within the inner and outer soles, substantially as described.

5. As an article of manufacture, a shank stiffener consisting of a metal strip provided With a plurality of bifurcated distensible prongs, substantially as described. 6. As an article of manufacture, a shank stiffener consisting of a metal strip pro-V vided With a seriesof prongs arranged in couples along the length of the strip, the prongs of each couple being reversely ar ranged relatively one to the other, substantially as described.

ERASTUS E. WINKLEY. Witnesses WARREN Gr. OGDEN, GEORGE E. STEBBINS.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents. Washington, D. C.

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