US428421A - Fastening device for tools - Google Patents

Description

- (No Model.)

B. SHAW. FASTENING DEVICE FOR TOO-LS. No. 4Z8,4Z1.

Patented May 20,1890.

llrvrrnn STATES 1 ATENT OFFICE.

EDGAR SHAW, OF PORTLAND, MAINE. I

FASTENING DEVICE FOR TOOLS.

SPECIFICATION forming part of Letters I Eatent No. 428,421, dated May 20, 1890.

Application filed August 7, 1889.

T0 aZZ whom it may concern.-

Be it known that I, EDGAR SHAW, of Portland, county of Cumberland, State of Maine, have invented an Improvement in Fastening Devices for Tools, of which the following description, in connection with the accompanyin g drawings, is a specification, like letters on the drawings representing like parts.

This invention has for its object to provide a novel fastening device especially adapted, among other things, to be employed as a means for securing hammers, axes, and like tools to their handles.

My invention consists, essentially, in the combination with a tool provided with an eye and a handle inserted in said eye and provided with a transverse hole, of a clinchingbar inserted in said hole, and a fastening device, substantially as will be described, adapted to be driven into the handle and turned at its ends by the said bar to clinch the handle.

Other features of my invention will be pointed out in the claims at the end of this specification.

Figure l is a top or plan view of a hammer secured to its handle in accordance with my invention; Fig. 2, a partial section and elevation of a hammer shown in Fig. 1, the section being supposed to be taken on line a: x, the handle being in elevation and partially broken off; Fig. 2, a transverse section of the hammer shown in Fig. 1 on line as as; Fig. 3, a detail in elevation of the handle removed from the hammer, and Figs. 4 and 5 details to be referred to.

The hammer a, provided with usual claws a and having a suitable eye for the insertion of the handle may be of any usual or Well-known construction. The handle a is secured in the eye of the hammer a in the following manner, viz: The said handle is first provided with atransverse hole a (indicated by dotted lines Fig. 3,) into which is inserted a clinching-bar a, (see Figs. and

5,) the said bar being provided, as herein shown, with two concavities a on opposite sides of the longitudinal center of the said bar, the said bar being inserted into the opening a with its concave face or edge upward.

The handle isthen provided transversely, as herein shown, with two saw-cuts or grooves Serial No. 320,036. (No model.)

b b, extended in the direction of its length, and preferably extended the width of the said handle, and into which the prongs or legs b b of my improved fastening device is extended, the said prongs or legs having cast integral with them, as herein shown, a web b extended beyond the outer faces of the legs I) b so as to form side prongs 12 The legs I) b at their upper ends, on opposite sides of the central web b are provided with outwardly-extended shoulders b 6 which in practice are fitted int-o. recesses 19 of the hammer a. (See Fig. 2.)

The handle, having been inserted into'the eye of the hammer a, is firmly secured therein by placing the legs 17 b in the. saw-cuts or grooves b b, and then forcing the fastening device by pressure, as by a blow, down into the handle until the end of the legs 19 -12 strike the concave portions of the clinchingbar of, when said ends are turned or bent upward, as indicated by dotted lines Fig. f, and full lines Fig. 3, so as to enter into the handle from below and serve to clinch the same firmly. The shoulders b b of the legs 19 11 rest upon shoulders formed by the recesses 19 in the hammer a, and assist the clinching ends of the legs b b to retain the hammer upon its handle.

I prefer to employ a fastening device, substantially as shown in Fig. 4, in connection with a clinching-bar a but I do not desire to limit myself to the exact form of fastening.

device shown, as it may be materially changed for instance, the longitudinal web 19 may be omitted and the legs 19 b made independently of each other and driven into the handle independently of each other. So, also, I do not desire to limit myself to the use of the clinching-bar provided with two concavities, as the said bar may be provided with any desired number of concavities and a corresponding number of fastening devices may be used therewithas, for instance, the said bar may be provided with but a single concavity, and but a single leg (or it may be a nail) may be used with beneficial effect. So, also, the clinching-bar may be made without the concavities, and the flexibility or toughness of the fastening device depended uponto turn or clinch the nail without breaking.

I have herein shown my invention as applied to a hammer; but it is evident the same may be used with any form of tool having an eye into which is inserted a handlesuch, for instance, as axes, 8:0.

I claim- 1. The combination, with a tool provided With an eye, and a handle inserted in said eye and provided with a transverse hole d of a clinching-bar inserted in said hole, and a fastening device, substantially as described, adapted to be driven into the handle and turned at its ends by the said bar to clinch the handle, substantially as described.

2. The combination, with a tool provided with an eye, and a handle inserted therein and provided with a transverse hole d of a clinching-bar provided With a concavity and inserted in said hole, and a fastening device EDGAR SHAW.

YVitnessesr Ms. E. CHURCHILL, EMMA J. BENNETT.

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