US267695A

US267695A - Claw-bar

Info

Publication number: US267695A
Authority: US
Publication date: 1882-11-21
Anticipated expiration: 1899-11-21

Description

(No Model.)

J. H. LAKEY.

CLAW BAR. No. 267,695. Patented Nov. 21, 1882.

Tit/Ml N. PETEns Mhhomphan Washmflom D. c.

UNITED STATES PATENT OFFICE.

JOHN H. LAKEY, OF WABASHA, MINNESOTA.

CLAVV- BAR.

SPECIFICATION forming part of Letters Patent No. 267,695, dated November 21, 1882,

Application filed July 31, 1882. (No model.)

T 0 all whom it may concern:

Be it known that I, JOHN H. LAKEY, residing at Wabasha, in the county of Wabasha and State of Minnesota, and a citizen of the United States, have invented new and useful Improvements in Claw-Bars, of which the followingis a full description, reference being had to the accompanying drawings, in which Figure 1 is a side elevation. Fig. 2 is a top view. Fig. 3 is a rear elevation of the heel; Fig. 4, a side elevation of the heel; Fig. 5, a section at line 00 of Fig. 3; Fig. 6, a side elevation of the lever detached; Fig. 7, a side elevation of one of the two pieces which when in place form the claw proper. Fig. 8 is a front or top edge view of such piece. Fig. 9 is an end elevation thereof. Fig. 10 is an inside view 'of one of such pieces.

My improvements are primarily designed to be applied to claw-bars used in drawing railroad spikes; and the invention consists in a novel construction of parts which will be fully hereinafter described in detail, and set forth in the claims.

In the drawings, A represents the lever of a claw-bar.

B B are two pieces, which are made separate from the lever and are firmly bolted thereto by bolts to. Each of these pieces B is curved at its upper edge, and also at each end, as shown in the drawings. The points I), at the opposite ends and at the upper edge or part of each piece B, are formed as shown in the drawings, being cut away a little upon the inside, as shown at c, and each piece or part 1) forms one prong of a claw when the pieces B are prop erly secured to the lever A, so that when these pieces B are so secured to the lever there are in fact two claws, the outer one of which is ready for use, but the inner one cannot be used until the pieces B are reversed. These pieces B should be forged from cast-steel.

G is a heel, which also forms the fulcrum of the lever. As represented, this part 0 is made separate from the other parts, and may be made of malleable cast-iron. The lever A is provided with alip, (1, extending down from the under side into a recess, 0, in the heel O, and the heel is secured in place upon the lever by means of a bolt, f, passing through such heel and through the lip d.

By the construction described the lever is in fact provided with two claws, or with a reversible claw, so that when one claw is worn out a second claw can be brought into use by simply reversing the pieces B, and when both of the claws are worn out the side pieces, B, can be removed and new pieces substituted therefor, so that with but trifling expense a new claw can be at any time applied to the old lever.

Of course the pieces 13 might be constructed with points or prongs I) only at one end; but it is more economical to provide these pieces with points or prongs at both ends. It requires no skill to reverse or replace the pieces B, as any ordinary workman can do this.

It is my purpose, when desired, to supply a number of the pieces B and U with each lever A, and also to keep a quantity of the pieces on hand to supply the demand therefor. The lever should be made either of wrought-iron or of steel.

The operation of this claw-bar will be readily understood from the foregoing description.

What I claim as new, and desire to secure by Letters Patent, is as follows:

1. A claw-bar consisting of the lever A, the heel-piece U, detachably bolted to the rear edge of the lever, and the independent side pieces, B B, arranged longitudinally alongthe length of the lever and detachably connected therewith, substantially as described.

2. A claw-bar consisting of the lever A, provided with the lip d at its rear edge, the heelpiece 0, having the recess 0 and detachably bolted to the lip of the lever, and the independent side pieces, B B, bolted to the sides of the lever, substantially as described.

- JOHN H. LAKEY. Witnesses:

E. A. WEST, A. H. ADAMS.