US370136A - Sole-fastening wire - Google Patents

Description

(No Model.)

L. GODDU.

SOLI: FASTENING WIRE.

Patented Sept. 20, 1887.

UNITED STATES PATENT OFFICE.

LOUIS GODDU, OF WINCHESTER, ASSIGNOR TO JAMES IV. BROOKS, PRIN@ CIPAL TRUSTEE, OF CAMBRIDGE, AND FRANK F. STANLEY, ASSOCIATE TRUSTEE, OF BOSTON, MASSACHUSETTS.

SOLE-FASTENING WIRE.

SPECIFICATION forming part of Letters Patent No. 370,136, dated September 20, 1887.

Application filed May 21, 1887. Serial No. 238,958. (No model.)

To all whom if may concern,.-

Be it known that I, Louis GODDU, of Winchester, county of Middlesex, and State of Massachusetts, have invented an Improvement in Sole-Fastening IVire, of which the following description, in connection with the aceompanying drawings, is a specification, like letters and figures on the drawings representing like parts.

In the manufacture of shoes the soles are commonly secured to the upper by means of fastenings cut in measured lengths from a threaded wire taken from a coil of' wire. This wire as now used is provided with a single thread of quite short pitch, which is made to enter the stock by rotating the wire, and is then cut off close to the stock. The finer the thread, the greater the number of rotations and the longer the time required to screw the wire through the stock, and so,also, the less the pitch of the thread, the slower it is cut in the machine producing the wire. The wire to be useful should be well covered by threads.

In my experiments to cheapen the construction of boots and shoes I have discovered that a solefastening wire may be provided with two or more threads of considerable pitch at a very much less cost in time than when the wire has but a single thread, as now in use, and as described in United States Patent No. 161,842, and it follows that the end of a solefastening wire provided with a multiple thread may be inserted into the sole or stock at a much greater speed, thus cheapening the cost of making the shoe.

Figure 1 shows a coil of sole-fastening wire having asingle thread the cutting knives are set in the same plane on opposite sides or parts ofthe wire, and as the wire has but a single thread it necessarily follows that while one knife is cutting between threads the other knlfeon the opposite slde or part of the wire 1s acting on the edge of the thread and bends or turns the said edge over, so that it partially fills up the space between the threads on that side or part of the wire.

Asole-f'astening wire having a single thread, and eut as described, offers considerable resistance while entering into the stock, on ae count of the bending or turning of the edge of the thread, as described, and so, also, the holdlng power of the fastening cut from it, when embedded in the stock, is diminished to aconsiderable degree, owing` tothe injury of the thread at the point where it is cut from the wire, whereas a double or multiple thread af'- fords greater facility for both knives to cutin the grooves, which always come substantially drametrically opposite on the wire, thus obviating injury to the end or point next to be inserted into the material.

I claimH As an improved article of manufacture, a sole-fastening wire having independent or separate threads, the grooves between the threads being substantially diametrically opposlte, as and for the purpose specified.

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

LOUIS GODDU.

Vitnesses:

G. W. GREGORY, B. DEWAE.

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