US291820A - walker - Google Patents

Description

' (No Model.)

' E. WALKER.

COMBINATION TOOL.

Patented Jan. 8, 1884.

miumm 772'} massed.

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EDvVIN XVALKER, OF ERIE, PENNSYLVANIA.

COMBINATION-TOOL.

SPECIFICATION forming part of Letters Patent No. 291,820, dated January 8, 1884.

Application filed April 4, 1883.

To all whom it may concern.-

Be it known that I, EDWIN WALKER, a citizen of the United States, residing at Erie, in the county of Erie and State of Pennsylvania, have invented certain new and useful Improvements in Combination Cutting-Tool; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention consists in making an improved combination-tool for cutting purposes, such as gouges, chisels, carvers tools, and the like.

The objects of the invention are, first, to make one handle serve for a series of bits; second, to provide means for attaching, in connection with a bit, a gage or face piece, which will enable the bit to be used in the manner of a plane.

My device is illustrated in the accompanying drawings as follows: Figure 1 is a perspective view of a chisel embodying my invention. Fig. 2 is a view of the same in vertical longitudinal section. Fig. 3 is a like view of the handle alone. Fig. A is a plane side view of the same, with the screw sub stituted for the cam 0. Fig. 5 is a like view to Fig. 2, showing a screw-stud, b, substituted for the loop I). Fig. (3 is a top view of the handle shown in Fig. 5. Fig. 7 is aview similar to Fig. 4, showing a modified cam, C. Fig. Sis a longitudinal vertical section, showing attachments by which the bit can be used as a plane. Fig. 9 is a front view of the plate E in Fig. 8.

The various modificationsshown aresubstantially the same in effect, being only a substitution of equivalent devices so far as the effect produced is concerned.

A is the handle, and B the bit, the latter of which may be flat, curved, or angled, as desired or as required. One form of bit can be used on a handle as well as another. In this way one handle will serve for a series of chisels, gouges, and angle'chisels, making up a workmans set of these implements. Each bit has a loop, b, or stud b, and an opening for the point a on the handle. Each handle has a point, a, a shoulder, a, and a cam, G, or screw 0, or a cam, 0 as in Fig. 7, or some equiva- (No model.)

lent binding device. When the bits have the loops 1), the end of the handle between the point a and the binding device and shoulder a is made so as to fit closely in the loop. When the bits have a stud, b, the end of the handle is provided with an eye-slot, a, as in Figs. 5 and 6, to receive the stud.

The manner of attaching and detaching the bit is as follows: To attach the bit the point a is first put through the loop I), and then into the opening in the bit, and the end of the bit is abutted on the shoulder a. Then the cam O is pressed down and binds the bit fast. To loosen or detach the bit, the handle of the cam O is thrown up, and the bit will come off readily.

Various forms of handles may be used, and they may be straight, or nearly so, as shown in Fig. 1, or curved or bent, as shown in Fig. 8. \Vith one straight handle, one bent handle, and one handle such as is shown at D D in Fig. 8, a set or kit of tools would be complete, (including, of course, the requisite variety of bits.)

The handle shown in Fig. 8 is a compound one, and consists, first, of the ordinary handle, A, which maybe straight or curved, and, second, of the gage handle or block D D, which is connected to the handle A, the same as if it were a bit, and is also provided with means for connecting the bit to it in the same manner as it is connected with the handle A. The object of this intermediate part is to provide for a gagepieee, F, to set in front of the edge of the bit and gage the thickness of the shaving which may be out off by the tool. The two parts D D are made adjustable by an extensible joint, d (I, so as to be adjusted to various lengths of bits. The part D is provided with a seat for the loop I), and with a stud-point, d, which is in function and form the same asthe point a, and also with a binding-cam, C. By these means the bit is attached to the part D. The part D reaches out in front of the cutting-edge, and is provided with a face and a set-screw, and also a lug, (1 The gage-piece F is provided with an eye'slot, f, and it has two bearing-edges, e e, of which 6 is for plain work and the other for curvedthat is to say, one is for fiat chisels and the other for gouges. By the screw F and the slot f this plate can be adjusted directly in front ICO of the cutting-edge, and as much above that edge as is necessary to admit the shaving of the thickness desired. For gouges the plate E is put on with the edge a down, and for chisels with the edge e down. The work of attaching and detaching the bits can be done as quickly as to pick a new tool out of the rack, and, besides, the set or kit of tools will take up much less space; and, lastly, but not least, the cost of so many handles is avoided, and a full set of chisels and gouges can be furnished for much less cost than at present. The shoulder a is not essential for small tools for light work, or where the handle will not be pounded by a mallet, for the bit can be held very firmly by the point a and the proper binding device.

I do not claim in this application the combination of a handle having a device for clamping it to a tool and an intermediate gage-holding block' or handle, nor the combination of a handle having means for clamping it to the gage-blocks, said blocks having a binding-cam and an adjustable gage-plate, and a bit attached to said blocks D D, nor any of the novel points in the devices herein shown which are not claimed in this application, as I intend making them the subj ect-matter of a separate application.

What I claim as new is- 1. In a tool, the combination of a handle having a point and a cam-lever, and a tool having a holding device between the point and cam-lever of the handle, substantially as described.

2. In a tool, the combination of a handle having a point, a, cam-lever O, and shoulder a, and a tool, B, having aloop, b, and perforation for the point a, substantially as described.

In testimony whereof I affix' my signature in presence of two witnesses.

. EDWIN WALKER.

\Vitnesses:

J NO. K. HnLLooK,

ROBT. H. PORTER.

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