US1911583A - A corpora - Google Patents

Description

May 30, 1933.

A. PAXINOS- SHANK STIFFENER Filed Feb. 1929 wfiwss M W Patented May 30, 1933 UNITED STATES PATENT OFFICE ANDREW PAXINOS, OF HAVERI-IILL, MASSACHUSETTS, ASSIGNOR, BY MESNE. ASSIGN- MENTS, T0 MOORE SHANK COMPANY, OF EVERETT, MASSACHUSETTS, A GQRTORA- TION OF MASSACHUSETTS SHANK STIFFENER Application filed February 2, 1929.

The present invention relates to shank stifieners and more particularly to shank stil'feners for turn shoes or cemented process shoes.

Taking the turn shoe as an example, after the shoe has been turned, a leather shank piece or insole is inserted and is attached at its forward end to the outsole. Attached to the under side of the insole is a metal shank stiffener or junior which is curved to conform to the shank. The outsole and insole are ordinarily cemented together over practically their entire surface and it is desirable, if not essential, that the cemented union shall be nearly perfect over the whole surfaceotherwise the outsole and insole tend to pull away from each other. l/Vith a metal stiffener, however, a good cemented bond cannot be assured because of the fact that the cement does not readily adhere to metal. It has been proposed to connect the stiffener mechanically to the outsole by means of prongs or rivets but these expedients are open to objection not only because of increased cost of manufacture, but also because they impair the beauty and durability of the shoe.

The object of thepresent invention is to provide a metal shank stiffener having provision for complete bonding thereof to the material of the shoe with cement.

To this end, the present invention consists in the shank stiffener hereinafter described and particularly defined in the claims.

In the accompanying drawing, Fig. l is a side elevation of the turn shoe shank piece with the improved shank stiffener attached to the under side thereof; Fig. 2 is a bottom plan view of the insole shown in Fig. 1; Fig. 3 is a side view of the shank stiffener; and Fig. 4c is a sectional view taken through the shank of a turn shoe.

The illustrated embodiment of the invention comprises a leather insole or shank piece 6 which is molded in the usual shape.

Attached to the under side of the insole is a metal shank stiffener 8 having at opposite ends the prongs 9 which are driven into the insole. The metal shank stiffener itself being incapable of being adhered to a leather insole and the outsole.

Serial N0. 337,023.

and the upper 14. A body of glue or cement 16 is received in the space between the The point at which a good cemented bond is most necessary is between the shank stiffener and the outsole at the lowermost point of the former, which point is indicated at 18. A good bond is assured by the present invention because of the fact that the fibrous covering for the shank stiffener is readily adherent to the glue. A good bond between the shank and the sole over the entire surface is accordingly obtained.

It is to be understood that the adherence effected by the cement is between the fibrous covering and the outsole. The covering itself is prevented from relative movement on the shank stifiener even though it may be only loosely placed thereon because of the fact that the metal piece is held with some pressure between the insole and the Having thus described the invention, what is claimed is:

l. A shank stiffener for shoes comprising a metal piece having means for securely attaching it to the shank piece or insole of the shoe, and a covering consisting of a length of fabric tape wound spirally on the metal piece and capable of forming a bond with cement.

2. In a shoe the combination of a leather shank piece, an unyielding metal shank stifi- 5 ener securely fastened thereto, a covering comprising a length of fabric tape Wound spirally on the shank stiffener, an outsole, and a layer of cement uniting the outsole and shank piece and adhering to the fabric tape.

In testimony whereof I have signed my name to this specification.

ANDREW PAXINOS.

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