US241977A - William halkyaed - Google Patents

Description

(No HodelJ W. HALKYARD. ,Button Hook.

1. No. 241,977. Patented May 24, 1881.

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UN TED STATES PATENT OFFICE.

WILLIAM HALKYARD, OF PROVIDENCE, RHODE ISLAND.

BUTTON-HOOK.

SPECIFICATION forming part of Letters Patent No. 241,977, dated May 24, 1881.

Application filed September 523, 1880. (No model.)

To all whom it may concern:

Be it known that I, WILLIAM HALKYARD, of the city and county of Providence, State of Rhode Island, have invented a new and useful Improvement in Button -Hooks; and I hereby declare that the followin gis afull, clear, and exact description of the same, reference being had to the accompanying drawings, forming part of this specification.

This invention has reference to that class of button-hooks which is used for shoes, and is secured by means of prongs forming part of the buttonahook.

The object of the invention is to so construct these'prongs with reference to the hook that the broad face of the prongs shall be in the direction of the strain, so as to prevent tearing of the material.

The invention consists in the peculiar construction of the button-hook and the location of the prongs, as will be more fully set forth hereinafter.

Figure I is a perspective View of my improved button-hook. Fig. 2 is a side view of the same. Fig. 3 is a top view, and Fig. 4 is a View of the blank out of which the buttonhook is made.

In button-hooks as heretofore constructed the prongs were made without any special reference as to their position and bearing on the material when strain is exerted on the hook, and when one of the prongs happened to be so located that the strain exerted on the hook would be resisted by the broad side of the prong, all the strain was resisted by the prong so located, as the other prongs had a tendency to cut the leather or other material, their edges being more or less in the direction of the strain.

To secure uniform resistance on each prong and so increase the strength of the fastening by placing the flat sides of all the prongs at right angle with the line of the strain, and secure the button-hook by bending the forward prong between the two rear prongs, is the oh- 4 5 ject of this invention.

In the drawings, (t represents the head or button; b, the neck against which the string lies and on which the strain is exerted.

c is the metal plate, which rests on theleather or other material to which the deviceis secured.

d d are the rear prongs, placed one on each side of the neck b, and bent so that their wide sides are on a line at right angle with the line of the strain, or at right angle with a line through the center of the button and neck.

6 is the forward prong placed on a line parallel with the wide face of the rear prongs.

As the strain is equally divided on all the prongs, the fastening is much stronger than fastenin gs otherwise constructed.

In bending the prongs to secure the button hook by clinching, the two rear prongs are not bent inward toward the center, but are bent in a direction parallel to the direction (if the strain on the line new. (Shown in Fig. 4.) The rear portion of the plate 0 is therefore wider than was u ed heretofore, and forms a better resistance to the tilting strain exerted on this class of buttons. Another advantage incidental to placing the prongs as described consists in that the rear prongs clinch on material on each side of the line of strain, and thus secure a wider bearing underthe material than is the case when these prongs are clinched inward.

Having thus described myin vention, I claim as new and desire to secure by Letters Pateat- The described button-hook, composed of a single thickness of metal throughout, and having the head a, the neck b, the plate 0, and the three prongs d d e disposed as shown, with their flat or broadest faces at right angles to the line of the strain.

WILLIAM HALKYARD.

Witnesses JOSEPH A. MILLER, J osEPHA. MILLER, Jr.

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