US357626A - Geoegb w - Google Patents

Description

(160 Model.) I

G. W. PRENTICE.

v I BUTTON FASTENING STAPLE. No. 357,626. Patented Feb; 15, 1887.

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UNITED STATES PATENT QFFICE.

GEORGE W. PRENTIOE, OF PROVIDENCE, RHODE ISLAND.

BUTTON-FASTENING STAPLE.

SPECIFICATION forming part of Letters Patent No. 357,626, dated PebruarylS, 1887.

Application filed November 29, 1886. Serial No. 220,127. (No model.)

To all whom it may concern:

Be it known that I, GEORGE W. PRENTIOE, a citizen of the United States, residing at Providence, in the county of Providence and State of Rhode Island, have invented certain new and useful Improvements in Button-Fastening Staples; and I do declare the following to be a full, clear, and exact description of theinvention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the letters and figures of reference marked thereon. which form a part of this specification.

This invention relates to a new and improved two-pronged or staple fastening designed for securing eye-shank buttons to boots, shoes, and other articles. Fasteners of this class now in use are mainly pointed and flattened at the extreme ends only, and when the prongs of such fasteners are clinched to fabric the said pointed ends are turned back into the fabric, leaving the exposed portion of the prongs projecting above the surface, and as they are of the same configuration of the wire from which the staple is made-usually round wire-they form an objectionable feature of the staple, and in shoe or boot are liable to injure the foot of the wearer.

My present improvement has for its object to provide a fastener withabroad thin smooth bearing-surface on the under side of the material, when secured thereto, with the least possible projections in contact with the person of of the wearer, and at the same time to produce a stronger and more reliable eningthan has hitherto been made.

To this end my invention consists, essentially, of a two-pronged staple-fastening made from wire, having semicircular crown or arch for the reception of the eye of a button provided on each side with semicircular shoulders or abutments terminating in broad thin spade-shaped prongs, said prongs to be passed through material and be clinched on the under surface thereof, to secure a button thereto, all as will be hereinafter more fully described, and pointed out in the claims.

Figure 1 is a front view of my improved button-fastening staple; Fig. 2, a side elevatWo-pronged fast- 1 tion of the same. Fig. 3 is abottom plan view of the device as secured to fabric.

In carrying out my invention the fastening is formed from wire-in the present instance round wire. The central portion of the staple is bent to form the crown or arch 1, semicircular in form, for the reception of the eyeshank of a button, and is provided on each side with semicircular shoulders or abutments 2 2, terminating in broad thin downwardlyprojecting spade-shaped prongs 3 3, the-inner surfaces of which are flat and substantially parallel with each other, the cutting-edges of the ends of the prongs standing at right angles to the length of the staple, as fully shown in Fig. l of the drawings. The prongs 3 3 are thinned and slightly concaved and flattened on their outer surfaces from the ends to the shoulders 4 4, said shoulders being located at or near the line of the under surface of the fabric to which the fastener is attached. The ends of the prongs 3 3 are formed slightly oval, as shown in Fig. 2, which causes the center line of the prongs to come in initial contact with the fabric in attachment, making it easy of penetration, and when clinched to fabric with a button attached the spadeshaped prongs form a broad thin smooth surface on the under side of said fabric, as shown in Fig. 3, rendering it almost impossible to disengage the fastener therefrom or for the fastener to turn around in the fabric, and at the same time'presenting the least possible projection, in no way liable to injure the flesh or clothing of the wearer.

The general form or configuration of the crown or arch of my improved fastening above the shoulders is substantially the same as described in my United States Patent N 0. 344, 858,

to which reference may be had. It is evident, however, that the form of the ends of the prongs as herein described, may be employed with equal results on staple-fasteners having other forms of crown or arch. The shape of the wire employed may also be varied to suit the requirements of the trade or the option of the maker.

Having described my invention, I claim- 1. As an improved article of manufacture, a button-fastening staple made from wire and provided at the ends of its prongs with broad flattened spade-shaped points, the cuttingedges of which are oval in form and at right angles to the length of the staple, substantially as described.

2. A button-fastening staple made from wire, comprising a crown or arch terminating in broad flattened spade-shaped penetrating prongs, said prongs being provided on the outer surface with shoulders formed by the abrupt termination of the thinned portion of said prongs, substantially as set forth.

3. A button-fastening staple comprising a l

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