US113344A

US113344A - Improvement in drill-stocks

Info

Publication number: US113344A
Authority: US
Publication date: 1871-04-04
Anticipated expiration: 1888-04-04

Description

am site @anni y effin.

QWILLIAM HfRAND, OF BROOKLYN,NEW YORK. j

Letters Patent No. 115,344, dated April 4, 1871.

IM PROVEMENT IN DRILLSTQCKS1 The Schedule referred tov in these Letters Patent and making part of the same.

To all whom t't may concern.

Be it known that i, WILLIAM H. RAND, 0f Brook'- lyn, in the county of Kings and State of New York,

spring, V-whichl'atter, by uncoiling, gives to the drill arbor-arotation in vthe other direction, which device niaybeseeninvLetters Patent granted to A. Wirsching, August 25, 1868.

This device is inconvenient in consequence of the distance between the cord and the drill, and the liability of the wire'helical spring to become bent or inoperat-ive'.v

.My invention is made for bringing the drill and the actuating band or cord nearer to each other, and insnr-'ing durability under the circumstances where such drill-stocks are intendedv to be employed.

1 make' use of a fixed gudgeon, around which is revolved a spring-barrel, by the action of a cord or tape andthe volute plate watch-spriug contained in such barrel, and at one side of this barrel Ais a yoke carrying a drill-socket. The gudgeou projects from a stock' that may be inserted in a vise or attached to the workmans bench or the stock may be held by the workman in one hand, when most convenient.

ln the drawing- Figure 1 is a section longitudinally of the drill-stock,

and

Figure 2 is an end view ofthe same. The stock A is adapted to beingr clamped in a vise,

or connected to the bench by the screw b or otherwise.

The gndgeon or projecting pin creceives the spring barrel d, within which is the volute spring e, similar to those used forwatches'or clocks, and the inner-end of the same is hooked to the gudgecn and the outer end to the springfbarrel.

This spring-barrel is adapted to receive the tape or cord f around its periphery, and for this purpose the barrel may either be a plain cylinder, as shownor else have flanged ends, land the cord or strap f passesl through a stationary loopor guide, g, extending from the stock a, as shown more clearly in the plan View, fig. 3. 1

At one side ofthe spring-barrrel althel yoke h is attached, and upon the same, and in line with the axis' of the spring-barrel, is the socket t', for lthe reception V ofthe drill, and the same may be held or clamped by the screw o or otherwise. n

The drill will be rotated in onedirectionas the cord or strap f is drawn off by hand or by a movement from the foot, and the recoil of the spring e iv'es the movef v ment in the other direction, and they rill being close to the cord is a great facilityfto a workman, (as with a drill-bow,) he frequently requiring to use both hands in getting his work into position for the drill, and the y spring itself is not liable to become injured in use.

I claim as my invention The spring-barrel d upon the gudgeon c, that projects from the stock a, and the yoke h and socket fi, connected to such spring-barrel, in combination wit-h the volute spring e and the cord or strap f, as and for the purposes set forth.

. Signed by me this fifth day of December, A. D.

W. H. RAN D.

Witnesses CRAs. H. SMrrH, GEO. T. PINCKNEY.