US1424161A - Hammer - Google Patents

Description

F. W. FOLEY HAMMER.

APPLICATION FILED APR. 6. 1922.

Patented Aug. 1, 1922. 1

61am wags UNITED STATES PATENT OFFICE.

FRANK W. FOLEY, 0F DOLLAR BAY, MICHIGAN.

HAMMER.

To all whom it may concern Be it known that I, FRANK W. FOLEY, a citizen of the United States, residing at Dollar Bay, in the county of Houghton and State of Michigan, have invented certain new and useful Improvements in Hammers, of which the following is a specification.

This invention relates to hammers, and has as an object the provision of a hammer having faces of different degrees of hard ness so constructed that the union of the materials of which the hammer head is made will not be broken in service.

A further object of the invention is the provision of a hammer of. this character which will be simple to manufacture.

An illustrative embodiment of the invention is shown in the accompanying drawing, in which Fig. 1 is a perspective view; I

Fig. 2 is a section on line 2-2 of Fig. 1 on a reduced scale;

Fig. 3 is a vertical longitudinal section showing a step in the manufacture of the hammer, and

Fig. t is a like section of the completed hammer.

The hammer is shown as formed of a soft metal carrying the eye 10 for the handle 11, and one face 12 of the hammer formed integral with the portion bearing the eye. The portion of the hammer already described being the body of the hammer head is preferably formed of a soft metal such as copper.

To provide a hard face upon the hammer a shell 13 of a hard material, as steel, is secured to the head of soft material. To secure the shell upon the head so as to remove any tendency of separation the shell is made with a recess 14L which is circular in cross section, as indicated in Fig. 2, and which is of larger diameter at its bottom portion 15 than at its opening 16.

The soft head of the hammer as first formed has a projection 17 which is cylindrical in cross section and of uniform diameter from the shoulder 18 to the extremity. The diameter of the projection 17 as originally formed is substantially equal to the diameter of the opening 16 into the recess in the shell 13. With the parts formed as described the projection 17 is inserted into the Specification of Letters Patent.

Patented Aug. 1, 1922. 1922. Serial No. 550,121.

hollow shell, as indicated in Fig. 3, and pressure is applied to the parts sufficient to force the soft head into the shell and to cause the soft metal to completely fill the hollow in the shell and to bring the shoulder 18 into contact with the end 19 of the shell, thereby providing a tight joint upon the surface.

When the hard face of the hammer is used the impact of the blows thereon will only tend to secure the soft metal therein the more tightly. This is also true of blows delivered with the soft face of the hammer, since the whole effect of the momentum of the hard shell when the soft face of the hammer is used will be to drive the shell more firmly upon the projection 17.

The tool will be found very convenient in machine work where it is desired to strike some parts withoutmarring them, in which case the soft face is used and where it is at other times desired to up-set rivets, in which case the'hard face may be used.

In addition to the advantage of having the soft and hard faces, the hammer will be heavier when the head is made up largely of the soft material, such as copper, than would be the case if the main portion of the head were made up of steel with a copper face attached.

Minor changes may be made in the physical embodiment of the invention without departing from its spirit.

I claim:

1. A hammer comprising a head of relatively soft material carrying a hammer face and an eye for a handle and a hard face secured to said head enclosing one end there- 0'.

2. A hammer comprising, in combination, head of relatively soft material having a face of the said material and an eye for a handle, a shell of relatively hard material having a hollow therein, which hollow has a mouth of reduced diameter, a projecting portion of said head extending into said hollow and pressed therein to expand to completely fill the hollow whereby the shell will be immovably secured to the head and whereby relatively soft and hard faces are provided for use.

FRANK W. FOLEY.

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