US1792437A - Hammer - Google Patents

Description

Feb. 10, 1931. R. METZGER ET AL 1,792,437

HAMMER Filed May 11, 1929 1 Inventor:

Zfoy fieizger Bar: 661 Wffi'mfpairzci By 2mm A itorney V of this rib terminate at substantially the base Patented Feb. 10, 1931 UNETED STATES PATENT OFFICE HAMMER Application filed May 11, 1929. Serial No. 362,384;

The present invention appertains to new and useful improvements in tools and more particularly to a novel hammer. The principal object of this invention is to provide 5 a hammer of the claw type wherein the individual claws may be utilized for various purposes.

Another important object of the invention is to provide a hammer with means whereby 10 a greater leverage may be obtained when pulling nails than is possible with the use of such conventional types of hammers as are now in conventional use.

Other important objects and advantages of the invention will become apparent to the reader after considering the invention as described and claimed hereinafter.

In the drawings:

Figure 1 represents a perspective View of the improved hammer.

Figure 2 represents a perspective view of the improved hammer with the removable block attached thereto.

Figure 3 is a perspective view of the detachable block.

Referring to the drawings, wherein like numerals designate like parts, it will be seen that the present invention resides in the construction of the novel hammer head, and by referring to the drawings, it will be seen that this novel head structure includes a socket portion 5 within which one end ofthe usual hammer handle 6 is adapted to be procured. Projecting beyond one side of the socket portion 5 is a pair of claws 7-7, while projecting beyond the opposite side of the socket portion is a gradually inwardly tapering head 8.

A. U-shaped rib 9 is provided on the outer end of the socket portion 5, as the extremities portions of the claws 77in substantially the manner shown in. Figure 1. This rib has its inner side undercut as at 10 to receive the fulcrum block generally referred to by numeral 11. V

This fulcrum block consists of a block 12 of suitable metal and of substantially rectangular shape, the outer side of which is curved as at 13 downwardly in the direction of the claws 77 when the same is assembled with the hammer head. The block is of hollow construction to insure lightness and is provided at its opposite side with a pair of ribs 1l14 of dove-tailed construction for interlocked engagement with the rib 10 on the socket portion of the hammerhead. The hollow block assumes the positionlshown in Figure 2, when applied to the hammer.

One claw 7 of the hammer has its free end portion sharpened to substantially chisel edge, while the complementary claw has its free end provided with a V-notch 15.

It will thus be seen that when it is desired to remove a counter-sunk nail, the head of which cannot be engaged between the claws 7'7, thechisel edge of one of the claws is been driven so as to provide a pocket at one side of the nail head, to permit the engagement thereinto of the notched end portion of the complementary claw 7. The shank of the nail will be engaged within the V-shaped notch while the head will rest upon the end portion of the claw and by rocking the hammer head the nail may be lifted at a distance. The claw 7 may then be disengaged and the hammer engaged with the complementary claws at opposite sides of the nail shank and the nail head resting upon the inner edge portions of the claws, so that by again rocking the hammer the nail may be raised another limited distance. In order not to bend thenail in extracting the same, a block, such as is generally referred to by numeral 11 is provided and attached to the hammer in the manner shown in Figure 2. By attaching this block and rocking the hammer a greater fulcrum is obtained so that the nail is lifted straight upwardly and is not bent in the operation of extracting the same.

It will thus be seen that the present invention embodies several novel features over conventional types of hammers and while the foregoing description has been in definite dug into the materialinto which the nail has What is claimed is:

1. A claw hammer comprising, in combination. a sharpened portion having a hammer head on one side and claws on the opposite side and a U-shaped undercut rib on its outer face and extending from the base of the hammer head to the base of the claws, and a hollow fulcrum block having dove tailed ribs for interlocking engagement with the said U-shaped rib, said block being coextensive with the said U-shaped rib and having its outer face curved downwardly in the direction of the claws.

2. An implement of the character described comprising a tool head provided with a handle receiving opening extending therethrougln a claw projecting laterally from the head, a pair of undercut ribs on opposite sides of the opening at the outer side of the head, a fulcrum block and a pair of complementary ribs on the block for engagement with the ribs 0n the head.

3. An implement of the character described comprising a tool head provided with a. handle receiving opening extending therethrough, a. claw projecting laterally from the head, a pair of undercut ribs on opposite sides of the opening at the outer side of the head, a fulcrum block, a pair of compleinentary ribs on the block for engagement with the ribs on the head, and a bridge piece'connecting the ribs on the head at one of their ends to limit movement of the block in one direction.

4. An implement of the character described comprising a tool head provided with a handle receiving opening extending therethrough, a claw projecting laterally from the head, a pair of undercut ribs on 0})- posite sides of the opening at the outer side of the head, a fulcrum block, a pair of complementa-ry ribs on the block for engagement with the ribs on the head, and a stop member to limit the fulcrum book in a direction away from the claw.

In testimony whereof We affix our signatures.

ROY METZGER. DANIEL W. KIRKPATRICK.

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