US138625A - Improvement in surfacing-planes - Google Patents

Description

G. E. FRANKLIN.

Surfacing Planes.

Patented May 6,

No.'l38, 625.

AM. RHOTlI-L/THOGRAPH/C ca 2/] (mama's P/mcsss UNITED STATES GEORGE E. FRANKLIN, OF NATIOK, MASSACHUSETTS IMPROVEMENT IN SURFAClNG-PLANES.

Specification forming part of Letters Patent No- 1384525, dated May 6, 1873; applic March 8, 1873.

To all whom it may concern.-

Be it known that I, GEORGE E. FRANKLIN, of Natick, in the county of Middlesex and State of Massachusetts, have invented an Improvement in Surfacing-Planes; and I do hereby declare that the following, taken in connection with the drawing which accompanies and forms part of this specification, is a description of my invention sufficient to enable those skilled in the art to practice it.

In using dies for punching or cutting shoe soles and uppers, and other stock, it is customary to use blocks of wood with the end of the grain uppermost, the top surface being faced oif for smoothness. As such a block becomes too much worn for practical use, it is cut down with an adz to a plane below the lowest depression worn by the dies, and is then surfaced off with a smoothing-plane. This method of surfacing a block is very slow and laborious, and does not result in procuring a uniform face.

My invention has reference to a method of surfacing such a block by means of a plane alone; and for this purposeI make a plane having a straight bottom face and a straight side face, andproj ecting through said adjacent faces, and adjacent to the angle of such faces,two cutters or cutting-edges, one edge being andcutting horizontally, and the other being vertical and cutting vertically, the cutting-edges being in the same vertical plane, right-angular to the side face of the tool, this side face having a gage to regulate the depth of cut of both cutters or bits. This plane is used by beginning at one side of the block and setting the gage to the depth to be cut, in order to reach the deepest depressions, and resting the gage upon the top of the block, with the vertical cutter against the side of the block. Then, as the plane is worked, the vertical cutter planes off the block, while the horizontal cutter joints or cuts across the grain, and smooths the top surface of the block, the plane being thus used until the block is planed across its whole face. It is in this construction of the surfacing-plane that my invention primarily consists.

The drawing represents a tool embodying the invention.

Figure 1 is a side view of the plane. Fig. 2 is a top view thereof. Fig. 3 is a bottom view. Fig. 4 is a cross-section on the line w w.

:1 denotes the bottom plate of the plane; b,

PA'rEN'r i-.: QE.

1 ion filed an upright, extending from on edge of said plate; 0, the throat through w 1 oh the cutters or plane-bits extend and the 0 ps escape. d e denote the two cutters, set 1 an angle to both plates at b, and at a right angle to each other, the cutter d resting upon a bed-piece, f, and its cutting-edge extendin through the throat c, and so as to be in a h izontal plane just beyond the bottom face f the plate a, and the cutter e sitting ed gewi on top of the cutter (I, and with its inner fac against abedpiece, g, the cutter 6 also exte ding through the throat 0, but its cutting-e ge being vertical and standing just beyond 1 he outer face of the upright b, the two cuttin edges standing, therefore, at a right angl and being in effect one cutting-edge, bent as to be one part vertical and one part h izontal. The two cutters are held by an an ilar clamp, h, which is pressed down against a screw, 73, passing through a ar, 70, and the clamp It has a shoulder, l, eXte ding over the edge of the cutter 6, so thatv n t only are the two cutters forced against the )ed-faces, but the cutter c is pressed againsi the cutter d, bringing their cutting-edges together and firmly securing them in positi On the outer face of the u 1 fight I) is fastened a gage, m, which, by scr 1 s n and slots 0 is made adjustable, and t s gage determines the depth of cut of the lwo cutters.

As the tool is used, as be re described, the edge cl cuts across the rain, and the edge c with the grain, and-b the action of the two cutters together the w ,rk is very rapidly effected, and the block uni rml y surfaced or resurfaced. 1

I claim- 1 I 1. The surfacing-plane, for Lied with two cutters, d and 6, having thei 1 edges in line and standing one in horizont l and the other in vertical position, combined with the gage m, on the vertical face of the lane, substantially as described. l 1

2. In combination with the clamp h,-for holding the cutte as shown and described. i

3. The clamp, formed with he shoulder l, for pressing the cutter a down 0 the cutter d, substantially as shown and d cribed.

GEO. E. .EANKLIN.

' o cutters, the substantially Witnesses FRANCIS GOULD,

l M. W. FROTHINGHAM. l

he cutters by

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