US75084A - Elisha w - Google Patents

Description

E. W. WATSON. DRILL SHARPENER.

No. 75,084. Patented Mar. 3. 1868.

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ELISHA W. WALTON, OF DRYTOWN, 'ASSIGNQR TO JOSEPH H. ATKINSON: OFSAN FRANCISCO, CALIFORNIA.

Letters aw No. 75,084, dated March 3, 1868.

IMPROVED DBILL-SHARPENER.

T0 WHOM THESE PRESENTS SHALL COME:

Be it known that I, ELIsHA W. WALTON, have made a new and useful Invention in Drill-Shiirpeners, of which the following; together with the accompanying drawings, is a full and clear description.

Figurel represents the sharpener ready for use.

The swage A is worked hi? the lever B, and is brought down on the die C, which has the form or shape desired for the drill. In the face or cutting part of the stage A is also a die of the desired form. In this-die it is placed in the dies for sharpening. Under the die G runs a bolt, D, that passes through the stirrup E, that passes up on the outside of the guide-frame F, in which the swage work s. Through the top of the stirrup E and has two holes through it. Through one passes a bolt, attaching the lever to the stirrup the other secures it by a bolt to the swage, so when the lever is operated it gives all the force to the lever and power of a knuckle- .joint, .thus producing a machine of capacity and force to sharpen drills suitable for mining purposes, or operating in rock for wedging or blasting.

Figure is a sectional view.

Figure 3, working parts. i,

A, swage; B, lever; 0, die; D, bolt; E, stirrup; F, guide-frame; G, bolt; H, base-block; I, rest-block, J, drill; K, eccentric; L, groove in die.

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I claim the combination of the swage, frame, and die, in combination with a stirrup-lever and an eccentric, for the purposes specified, all constructed and arranged substantially as described and shown. San Francisco, August, '1867. A

ELISHA W. WALTON Witnesses:

ALMARIN B. PAUL, Josuru H. Arxmsou.

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