US1695578A - Manufacture of turn shoes - Google Patents

Description

Dec. 18, 1928. 1,695,578

w. G. DoDE MANUFAGTURE oF TURN sHoEs Original Filed May 4. 1921 Figi), J/ tllg.

Patented Dec. 18', 19.28.

UNITED STATES PATENT OFFICE.

WILLIAM G. DODGE, OF NEWBURYPORT, MASSACHUSETTS, ASSIGNOR T0 UNITED SHANK & FINDINGS COMPANY, OF BOSTON, MASSACHUSETTS, A CORPORATION 0F MASSACHUSETTS.

MANUFACTURE OF TURN SHOES.

Original application led Hay-4, 1921, Serial No. 466,682. Divided andthis applicationv iiied April 26,

` 192'?. Serial No. 186,739.

Thisinvention relates to improvements in the manufacture of shoes and particularly to improvements in methods of stifening the shank or arch portions of turn shoes, the present application beinga division of my earlier application, Serial No. 466,682, filed May 4, 1921.

A turn shoe is customarily provided With a shank stifener, frequently called a turn shank, consisting of a stiffener member, commonly called a filler piece, of leather or leatherboard which is shaped to it within the heel and shank portions of the shoe, and a metallic reinforcing strip which is attached to the lower side of the iiller piece. Atits heel end the filler piece is commonly secured to the shoe by the heel-attaching nails. The shank portion of the filler piece, or stiener member, however, is either leftr entirely unattached or it is secured in place merely by glue or by asmall tack in such a manner that this portion of the filler piece usually becomes detached after the shoe has been Worn a short ing longitudinally relatively to the sole when the shoe is flexed, as when the wearer is walking. As a result in most turn shoes thev shank stiener cannot be relied upon properly to support and stiden the arch or shank. In view of the foregoing, one object of the present invention is to improve the manufacture of turn shoes so as to provide for the desired adequate and permanent stii'ening of the shank or arch portions of the shoes.

To the attainment of this object, the invention, considered in one aspect, provides a novel method which, as herein exemplified, consists in securing together the upper and sole of a turn shoe and turning the shoe in the usual manner, locating on the sole of the shoe in a predetermined position within the shoe a com.- posite stiener unit comprising a reinforcing vstrip of hardened metal and a' filler piece having heel and shank portions shape-d to fit the interior of the heel and shank portions of the shoe, the stiener unit having a fastener-receiving hole extending through both the filler piece and the reinforcing strip, utilizing the wall of the hole in the stiifener unit as a positioning surface in determining the location in the sole of a fastener for securing the stiifener unit to the sole, and passin the attached reinforcing strip, placing the,l

reinforcedshank stidener in a turn shoe, and utilizing the registering holes in the filler piece and the reinforcing strip to determine the location in the shank portion of the sole of a fastener for securing the shank piece to the sole.

yThe invention will be explained With reference to the accompanying drawings, in

vwhich time. When unsecured to the solethe shank portion of the iiller piece is capable of mov- Fig. 1 is a diagrammatic plan view of a metal strip from which a plurality of rein-- forcing strip blanks have been cut;

Fig. 2 is a plan view of a reinforcing strip blank;

Figi?) is an end view of the blank;

Fig. 4 is a view, partly in section and partly in elevation, illustrating the shaping of the blank;

Fig. 5 is a side elevational View, partly in section, of the shank stiffener showing the leather stiffener member or filler piece with a metallic reinforcing strip made fast thereto;

Fig. 6 is a longitudinal section through a turn shoe in which the improved shank stidener is incorporated; and

Fig. 7 is a plan view of' a metal strip from which has been cut a plurality of reinforcing strip blanks of modified form.

In Fig. l of `these drawings is shown a stri i of hardened metal, for example tempere steel such as that commonly employed for making shank stieners for turn shoes. The strip l is subjected to a blanking operation whereby it is cut at intervals therethrough to form individual reinforcing or stiifening strip blanks 2. Each blank terminates at its v ends in prongs 3 and is punched or perforated at 4, preferably but not necessarily in the cutting operation. Each blankis formed,

` forex-ample, between dies as shown in Fig.

A1 turn shoes but is applicable also in connection 4, the rongs 3 being bent or struck up at the desired angle and the central portion of the strip being curved to conform to the longitudinal curvature of the slice shank and having -a central lon itudinal stiiening rib 5 formed therein. In ig. 5 there is shown at 6 a shoe ybottem member consisting of a piece of leather, leatherboard or other suitable material, which is shaped to c'onform to the heel and-shank portions only of the insideofthe tread sole of a shoe and which has a thin skived forward end 7. The illustrated mern` ber 6 constitutes a stiffener member or filler piece of the type ordinarily reinforced by a metallic reinforcing or stiffening 'strip to form what isl commonly known as a turn shank or shank stilfener for turnv shoes.I The invention, however, is not necessarily re-g stri'cted to operating upon shank stiffeners for with the manufacture of shoes of other types such, for example, as McKay sewed shoes,

wherein it is desired to secure together a bottom'member, such as an insole, a reinforcing and a tread sole.

stri

'lgie metal reinforcing stri which is made v from the blank 2 is made ast between the ends of the filler piece 6 by means 'of the prongs 3, which are driven and clinched therein. The prongs serve to maintain the strip 2 and thefiller'piece 6 in assembled relation with the perforations 8 and 9 in registration so as to facilitate the insertion of a rivet or other fastener through them after they have been placed in a shoe. The filler piece 6 is then perforated at 8 in alinement with the hole 4, thus completing the makin of the shank lst-ilener and providing a sha stiffener unit which is read to be incorporated in a shoe. Next the sti ener unit, consisting of the filler piece 6 and the metal rein'- forcing strip, is placed in position in a turn stiffener. A'rivet 10 is passed through the' hole in the sole and throu h the holes in the parts of the shank sti ener unit and lis clinched at 11 within the shoe. Thus it lwill be seen that the wall of the hole in the shank stiffener unit serves as a positioning surface in determining the location in the sole of the rivet or other fastener. The forward end portion of the filler piece may be made fast to the sole by any suitable securing means, and the rear end of the filler piece may also v be made fast to the sole byl means such as the heel attachina nails 12.

The modified form of reinforcing strip blank shown in Fig. 7 is designed for the purpose of decreasing the waste in the blanking or cutting out of the metal reinforcing strip. In this case prongs 3', corresponding to the prongs 3, are made at one end of the metal blank, and prongs 3EL are formed at the other cnd of this blank, the prongs 3al of one blank nesting within' the prongs 3 of the adjacent blank. By this means the waste froml the cutting of the prongs is much' reduced and the number of b anks which may be cut from a long strip of stock somewhat increased. In other respects the lconstruction is the same as beforedescribed. l

By constructing a turn shank-stifener and incorporating it in a turn shoe as herein described, there has been produced a turn shoe having a firmly sup orted and adequately stiffened shank or arc Both the filler piece and the metal reinforcing strip are rigidly secured to the shank of the sole, a result which has not heretofore been accomplished so far as the inventor is aware. The assembl and securing together of the parts o the shank stiffener and also the incorporatino of the stiffener in a shoe ina-y be conveniently and 1 expeditiously practised. This .will be apparent when it is realized that the 'fastener-receiving. erforation 8 in the fillerpiece is initially ormed in aline- 'ment with the perforation 4 in the reinforcing strip and also that the perforation 9 in the soleof the shoe'is initially formed in alinement with the alined perforations 4 and 8 in the reinforcing strip and filler piece. Consequently when the filler piece and the reinforcing strip are being assembled, and later when the stiffener unitA composed of these two parts is being assembled with the sole of the shoe, it is unnecessary to waste time by bringing into registiationfastenerreceiving perforationsV originally made out of registering relation in the various parts. Furthermore,- the arrangement is such that the herein described fastening means permanently Aand rigidly secures the stiifener unit and the sole in assembled relation to preserve the arch at the shank of the shoe.

Having thus described my invention, what I claim as new and desire to secure byv Letters Patent ofthe United States is:

1. That improvement inthe art of making turn shoes which consists in forming a filler piece, blankin and unching a hole through a metallic reinforcing strip, forming said strip to the longitudinal curvature of a shoe shank, attachin the strip to the filler piece to form a sha stiffener, punching a hole through the filler piece in alinement with the hole in the reinforcing strip, positioning the shank stifener within a turn shoe, lmaking a hole through the sole of the shoe in alinement with, the alined holes in the shank stiffener, and fastening the shank stiffenei in position by a. rivet passed through the holes in the sole and the shank stiifener.

unit comprising a reinforcing strip of hardened metal and a filler piece having heel and shank portions shaped to fit the interior of the heel and shank portions ofthe shoe, the stiifener unit having a fastener-receiving hole extending through both the filler piece and the reinforcing strip, making a hole through the sole while utilizing the wall of' the hole in the stiffener unit as a positioning surface to determine the location of the hole in the sole, and thereafter securing said stiffener unit to the sole by passing a fastener inwardly from the outside of the shoe through the holes in the sole and in the stiffener unit.

3. That improvement in the art of making turn shoes which comprises forming a filler piece, blanking and punching a hole through a metallic reinforcing strip, attaching the reinforcing strip to the filler piece to provide a reinforced shank stiffener, thereafter forming in the filler piece a hole similar to and registering with the hole in the yattached reinforcing strip, placing the shank stiffener in a turn sho'c, and utilizing the registering holes in the filler piece and the reinforcing strip to determine the location, in the shank portion of the sole, of a fastener for securing the shank piece to the sole.

4. That improvement in the art of making turn shoes which comprises forming a filler piece, blanking and punching a hole through a metallic reinforcing strip, attaching the reinforcing stri to the filler piece to provide a reinforced s ank sti fener, thereafter forming in the filler piece a hole similar to and registering with the hole in the attached rein orcing strip, and securing the shank stiiener to the sole of a shoe by passing a fastener inwardly through the sole of the shoe and through the alined holes in the shank stiifener.

5. That improvement in the art of making turn shoes which consists in securing together the upper and sole of a turn shoe and turning the shoe in the usual manner, locating on the sole of the shoe in a predetermined position within the shoe a composite stifener unit comprising a reinforcing strip of hardened metal and a filler piece having heel and shank por tions shaped to fit the interior of the heel and shank portions of the shoe, the stilfener unit having a fastener-receiving hole extending l through both the filler piece and the reinforcing strip, utilizing the wall of the hole in the stifener unit as a positioning surface in determining the location in the sole of a fastener for securing the stiffener unit to the sole, and passing a fastener inwardly from the outside of the shoe through the sole and through the stiffener unit.

6. That improvement in methods 0f making shoes which comprises providing a :fastener-receiving hole in a shank reinforcing strip, attaching the reinforcing strip to a shoe bottom member in predetermined relation thereto, then forming through said member a hole registering with the hole in the reinforcing strip, and thereafter securing said strip and said member to the sole of a shoe by a fastener while utilizing the holes in said member and said strip to locate said fastener relatively to said sole.

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

WILLIAM G. DODGE.

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