US271731A

US271731A - Bush-hammer

Info

Publication number: US271731A
Authority: US
Publication date: 1883-02-06
Anticipated expiration: 1900-02-06

Description

(No Model.)

A. ,NELSON.

BUSH HAMMER. No. 271,731. Patented Feb. 6, 1883.

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UNITED STATES I PATENT OFFIC AUGUST NELSON, OF KENT, OHIO.

BUSH-HAMMER.

SPECIFICATION forming part of Letters Patent No. 271,731, dated February 6, 1883. Application filed November 1, 1882. (No model.)

To all whom it may concern Be it known that I, AUGUST NELsoN, of Kent, Portage county, Ohio, have inventeda new and useful Improvement in Bush Hammers, of which the following is a specification.

My invention relates to bush hammers in which the points areon separate pieces or rods of steel having furrowed sides, and bound to. gether in thehammer-head byawedge or other suitable means.

Figure l is a plan. Fig. 2 is a side elevation. Fig. 3 is a cross-section in front of follower 8. Fig. 4 is a cross-section in front ofthe pointed rods. Fig. 5 is a view of one of the pointed rods.

The head aof the bush-hammer is a rectangular frame open at the top and bottom, and containing the pointed rods a, follower s, and wedge w. The two opposite sides of each pointed rod 0 crosswise of the head a, the inner side of the front end of head a, and the front side of follower s in contact with rods 0 are furrowed to prevent the rods from slipping when blows of the hammer are struck. Head a is formed with a socket, e, to receive handle ll. Follower 8 projects slightly at the top and bottom over and under the sides of head a, on which it slides. Pointed rods 0 are firmly compressed to hold them in place by driving down wedge w, and thus forcing follower 8 against The slight furrows on, each rod 0 are entered by the corresponding ridges on the adjacent rod, and therefore when, by reason of some slight projection on the object which the hammer strikes, the whole force of the blow is sustained by any one point of a rod, 0, the rod will not he slipped by the force of the blow from its relative position to the other rods.

Bush-hammers are commonly formed of a single piece of steel, the ends of which are cut into the desired number of points; but it is difficult and expensive to sharpen such points when they have been blunted by use.

The points of my hammer herein described may be easily sharpened separately on removing them from the frame of head a. They may be loosened so as to be removable by driving out wedge w. I

One or more set-screws in head a, to press against the side of the follower 8, may be used in place of wedge w to fasten rods 0 in position; but the wedge is deemed preferable for that purpose.

I claim as my inventionl. A bush-hammer having the head at furrowed on the inner side of one of its ends, in combination with pointed rods 0 and follower s, for compressing the rods, the two opposite sides of each rod parallel with the follower, and the side of the follower in contact with rods 0 being furrowed, substantially as and for the purpose described.

2. The hammer-heada, in combination with and containing furrowed and pointed rods a,

follower s, and wedge 10, substantially as described. I

AUGUST NELSON. Witnesses:

JAMES W. HOLcOMB, BRADFORD HOWLAND.