US331925A - Sole-fastener - Google Patents

Description

(No ModeL) A, VAN 'VVACTENEPLA SOLE FASTENBR. No. 331,925. Patented Dec. 8, 1885'.

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UNITED STATES PATENT Orrrcr..

ALBERT VAN IVAGENEN, OF BOSTON, MASSACHUSETTS.

SOLE-FASTENER.

SPECIFICATION forming part of Letters Patent No. 331,925, dated December 8, 1885.

Application filed April 3, 1855. Serial No. 161,138. (No model.)

To @ZZ whom, it may concern:

Be it known that I, ALBERT VIN WAGEN- EN, of Boston, county of Suffolk, State of Massachusetts, have invented an Improvement in Sole-Fasteners, of which the following description, in connection with the accompanying drawings, is a specification, like letters on the drawings representing like parts.

My invention has for its object to produce a strong but light-weight sole-fastening from metal,the surface of the same being indented, serrated, or corrugated, to thereby enable the surface of the fastening to engage the material and remain in place.

In accordance with myfinvention, a strip of thin sheet metal is corrugated, serrated, or indented and then made into a tube, the tube being cutinto fastenings ofthe desired length.

My invention consists in a folded sheet'metal metallic tubular sole-fastener or nail having its surface indented or corrugated.

Figure l represents part of a strip of metal, with one end thereof niade tubular, to be cut up for the production of fasteners embodying my invention. Fig. 2 shows one of my improved fasteners, and Figs. 3 and :l modified forms of strips.

For the manufacture of my improved sole fastener or nail, a narrow strip, u, of thin sheet metal, is first indented or corrugated, (more or less,) as shown at 2 2, by passing the saine between rollers properly out for such purposeor in other usual way, and then the said strip is bent or folded into cylindrical or tubular form, asshown at ZJ, either by drawing the strip through atapering die or in other usual manner. The strip of sheet metahfolded or made tubular, as described, and having its surface indented or corrugated, is then cut into suitable lengths for sole-fasteners, the cutting being done after forming the tube; or it may be cut into fasteners on a nailing-niachine in which the fastening material is fed to the driver as needed.

In Figs. 3 and 4 I have shown short pieces ofstrips of metal indented or corrugated in diiferent patterns, as I do not intend to limit my invention to any particular shape of indentation or corrugation. The oorrugations or indentations made in the strip materially stiften the fastener, thus enabling it to be driven with more accuracy, and at the same time greatly increase its holding power. The indentations will preferably be made on but one side of the material. The hole or central passage of the fastener immediately becomes filled with dirt; but this passage may be almost,if not entirely,closed by close drawing through the die. It may be wound in any usual manner upon reels to be used in the machine.

In another application filed concurrently herewith, Serial No. 161,139, Ihaveshown the serrated, corrugated, or indented strip cornbined with a wire core.

If desired, the cylindrical body representing the wire-like material to be out into short lengths for the production of fasteners may be subjected to a galvanizing process` to till any spaces left as the result of bringing the strip of sheet metal into cylindrical form.

I am aware that nails for sole-fastenings are commonly indented or serrated. I am also aware that shoe-sole fastenings have been made of smooth or plainstrips of metal folded about a brous core, and also tirata tubular or tubelike fastener with open center and side has also been used, the fastening separating as it is driven into the leather.

In accordance with niyinvention, the strip from which the fastener is made is first corrugated or indented, and being done before the metal is put into nail shapethe cost of manufacture is decreased, and there is actually no waste of stock, and the indentations, added to the sheet-metal nail, make thatclass of nail or fastening operative and valuable.

I claim- As anim proved article of manufacture, the herein-described sole-fastener, consisting, essentially, of a sheet-metal strip corrugated or indented and folded into tubular form, the corrugations or indentations appearing on the periphery of the fastener, substantially as described.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

ALBERT VAN WTAGENEN.

Witnesses:

B. J. NoYEs, F. CUTTER.

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