US3901296A

US3901296A - Hammer roll converter

Info

Publication number: US3901296A
Application number: US437532A
Authority: US
Inventors: John Tomac
Original assignee: Individual
Current assignee: Individual
Priority date: 1974-01-28
Filing date: 1974-01-28
Publication date: 1975-08-26
Anticipated expiration: 1992-08-26

Abstract

This invention consists of a cup shaped cover, made of a hard plastic material, which fits tightly over the poll of a hammer so that the face of the hammer is covered, for the purpose of converting an ordinary hammer into a marproof one. The cover is provided with corrugations on its wall for the purpose of providing a firm grip; and lugs on the interior of the open rim to help hold the cover on the hammer.

Description

United States Paten [1 Tomac 1 Aug. 26, 1975 HAMMER ROLL CONVERTER OTHER PUBLICATONS [76] Inventor: John Tomac, 595 Grand Marais 7 west, Wi d O i Canada Nelson, Rubber Mallet From Claw Hammer, Practical Job Pointers, 1940, page 5. 22 Filed: Jan. 28, 1974 [2H Appl' 437532 Primary Exuminer-Al Lawrence Smith Assistant Examiner.l. T. Zatarga [52] US. Cl. 145/29 C; 145/29 R; 145/29 B; 145/61 E [51] Int. Cl. B25d l/02 57 ABSTRACT [58] Field of Search 145/29 C, 29 A, 29 B, 29 R,

145/36, 61 E, 61 EA This invention consists of a cup shaped cover, made of a hard plastic material, which fits tightly over the poll of a hammer so that the face of the hammer is covered, for the purpose of converting an ordinary hammer into a marproof one. The cover is provided with corrugations on :its wall for the purpose of providing a firm grip; and lugs on the interior of the open rim to help hold the cover on the hammer.

1 Claim, 3 Drawing Figures HAMMER ROLL CONVERTER This invention consists of a cover for the poll of a hammer for the purpose of preventing the marring of finished surfaces when being hammered while being assembled or fitted with related parts.

In the manufacture of dies, or other precision products made of metal, also in the manufacture of metallic products which have finished surfaces, it is often necessary to use a hammer for assembly or fitting purposes. On such occasions, a regular type hammer can not be used because such hammers are made of cast iron or steel and would therefore mar or otherwise damage the product. To prevent such damage, the regular hammer is replaced by one made of a hard rubber or other similar plastic material.

This has several disadvantages. In the first place, a craftsman who has to use the rubber type of hammer on not too frequent occasions, is required to buy and to keep this extra hammer in his tool box. This involves unnecessary expenditure, and a loss of valuable space in the tool box. Secondly, such hammers, which are comparatively expensive, become scored quite easily and then the entire hammer has to be replaced.

It is the object of this invention to overcome the above disadvantages; and this is accomplished in the invention by converting the regular metal hammer into a soft hammer by, covering the poll with a tough but resilient cover which occupies very little space in the tool box and which can be replaced at very little cost. Furthermore, several such covers can be kept in a tool box so that when one of them becomes scored, another one is readily available for replacement.

In describing the invention reference will be made to the attached drawings in which,

FIG. 1 is a plan view of the invention,

FIG. 2 is an elevation of the invention,

FIG. 3 shows the invention used on a standard type of hammer.

In the drawings, the invention is shown consisting of a poll cover 1 which is more or less cup-shaped. The round wall of the cover 1 converges slightly towards the base 2 which is totally enclosed, and is provided with a plurality of vertical corrugations 3 for the purpose of providing a firm grip when placing upon or removing from the hammer.

The cover 1 also narrows down towards its top as shown at 4, so that the upper part of the cover 1 has a thinner cross-section thus making it more flexible for easy insertion upon the hammer poll 10.

The cover 1 is provided with an inner cylindrical chamber 5 which is of a diameter to fit snugly over the poll 10 of the hammer. This chamber is recessed just far enough into the cover to enclose the poll 10 of the hammer and to provide a thick section to the base 2, since this base replaces the metal face of the hammer and has to withstand the pounding action.

The open top 6 of the said cover is provided on its interior with a plurality of evenly spaced lugs 7 for the purpose of providing a grip upon the neck of the hammer.

To illustrate the application of the invention, a ball peen hammer having a handle 8 is shown in FIG. 3, with the cover 1 in position over the poll 10. In order to make such covers readily available, a cover can be slipped over the end of the handle 8 as shown in broken line by 11. For that purpose the said handle can be designed so that its end has the same diameter as the poll 10, and a shallow annular groove can be provided to house the lugs 7.

Having described the invention, what I claim is:

l. A cover for the poll of a metal hammer comprising a cylindrical container made of a hard plastic material, said cover being open on the top and closed at its bottom with a thick base; the cylindrical wall of said cover being tapered at a small angle towards said base, and narrowing down to a smaller diameter towards the top opening thereof; a plurality of spaced vertical corrugations located at about the center of the wide part of said cover; the hollow interior of said cover being of a diameter to provide a snug fit with the poll which it covers; and a plurality of equally spaced lugs located radially on the inside of said top opening to grip the neck of said hammer; in combination with the handle of a hammer, for storing an unused cover thereon, the free end of said hammer handle being of the same outside diameter as the interior diameter of said cover, and being provided with an annular groove wherein nest the said lugs, when the cover is stored.

Claims

1. A cover for the poll of a metal hammer comprising a cylindrical container made of a hard plastic material, said cover being open on the top and closed at its bottom with a thick base; the cylindrical wall of said cover being tapered at a small angle towards said base, and narrowing down to a smaller diameter towards the top opening thereof; a plurality of spaced vertical corrugations located at about the center of the wide part of said cover; the hollow interior of said cover being of a diameter to provide a snug fit with the poll which it covers; and a plurality of equally spaced lugs located radially on the inside of said top opening to grip the neck of said hammer; in combination with the handle of a hammer, for storing an unused cover thereon, the free end of said hammer handle being of the same outside diameter as the interior diameter of said cover, and being provided with an annular groove wherein nest the said lugs, when the cover is stored.