US2024136A - Tool - Google Patents

Description

E. A. BARDWELL 2,024,136

TOOL

Filed May 5, 1934 INVENTOR) [iv/7a ziiwfiw l,

BY MM,

ATTORNEY.'

Patented Dec. 17, 1935 UNITED STATES TOOL Edwin A. Bardwell, Shelburne Falls, Mass, assignor to Mayhew Steel Products, Inc., Shelburne Falls, Mass, a corporation of Massachusetts Application May 3, 1934, Serial No. 723,806

1 Claim.

My invention relates to improvements in tools, and more particularly to that type of tool which is gripped in the hand of an operator while in use.

An object of my invention is to provide a tool having one, or more, flat sides, or surfaces, with one, or more, of said sides, or surfaces, formed with a plurality of alternate indentations and raised portions for the purpose of providing a more, or less, roughened surface to aid in the gripping of the tool and to prevent slippage of the tool in the hand of an operator.

A further object of my invention is to so arrange the embossing on the fiat sides of the tool, as to provide both a greater utility for gripping purposes and also an enhanced appearance for the tool, as a Whole.

These, and other objects and advantages of my invention will be more completely disclosed and described in the specification, the accompanying drawing, and the appended claim.

Broadly, my invention comp-rises a metallic tool having a portion thereof designed to be gripped by the hand of an operator, said portion being formed with one or more, flat sides, or surfaces, and a design stamped upon one, or more, of the flat surfaces in such a manner as to provide a plurality of alternate depressions and raised portions for the frictional resistance to slippage of that portion of the tool, when gripped in the hand of an operator.

A preferred embodiment of my invention is illustrated in the accompanying drawing, in which:

Fig. l is an elevational view of a chisel showing the handle portion stamped to form alternate indentations and raised portions.

Fig. 2 is a cross, sectional view on the line 2--2, as indicated by the arrows, in Fig. 1.

Fig. 3 is a partial, enlarged, cross sectional view, illustrating the formation of the gripping surface.

Fig. 4 is a cross sectional view of a modified form of tool, triangular in cross section.

Fig. 5 is a View, similar to Fig. 2, illustrating a further modification with the gripping surfaces applied to a tool that is square in cross section.

Fig. 6 is a View, similar to Fig. 2, illustrating another modified form with the gripping surfaces applied to a tool hexagonal in cross section, and

Fig. 7 is a partial, elevational view, illustrating a tool formed with the gripping surface in a modified form of design.

In the drawing, I have illustrated a cold chisel with the gripping surfaces formed on the handle thereof; however, it will be understood by those skilled in the art that my invention is applicable to any tool, having a handle portion formed with one, or more fiat sides, and I do not confine, or limit myself to the tool illustrated in the drawing.

Referring now to the drawing in detail, in which like numerals refer to like parts throughout:

The tool I has the handle, or gripping portion 2, formed with a plurality of flat sides, or surfaces 3 and 4. The sides 4 are formed with indentations 5, separated each from the other by raised portions, or ridges 6. The indentations 5 are formed by means of a hammer, or press, in such a manner as to force the displaced metal slightly upwardly, between the depressions 5 to form the ridges 6, which project above the normal surface 4, as indicated in Fig. 3.

In Fig.4, the indentations, or recesses l, alternating with the ridges 8, are formed in the sides 9, l6, and H, of a tool I2, which is triangular in cross section.

In Fig. 5, the recesses l3, alternating with the ridges M, are formed in the faces l5 and it of a tool H, which is square in cross section.

In Fig. 6, similar recesses l8, alternating with raised ridges l9, are formed in the alternate faces 263 of the tool 2|, hexagonal in cross section.

Figs. 4, 5, and 6 are submitted as illustrations of the application of alternate recesses and ridges to any flat-sided tool, on one, or more, of the flat sides.

In Fig. 7, the recesses 22 and ridges 23 are formed in the surface 24 of the tool 25, in such a manner, as to form a lattice, or diamond design, contrasting with the grill, or rectangular design, illustrated in Fig. 1. It will be readily understood, by those skilled in the trade that these recesses, bordered by raised ridges, may be formed on the surface of any flat-sided tool, in any desired design.

The formation of these alternating recesses and ridges provides a distinctive feel in the hand of an operator, and adds materially to the frictional resistance of the tool to slippage. The outer ridges 6', as indicated in Fig. 1 and Fig. 3, accentuates the corners, or intersections of the surfaces 3 and 4, and provide additional resistance against turning of the tool in the hand.

What I claim is:-

In a tool of the percussion type, a handle portion formed with a plurality of fiat sides, one of said sides being formed with a plurality of spaced recesses bordered by raised ridges, one of said ridges being incorporated in each of the side edges of said side, whereby the intersecting ridges between said side and the next adjacent sides are accentuated.

EDWIN A. BARDWELL.

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