US1721270A - Hammer - Google Patents

Description

July 16, 1929.

HAMMER C. F. DOEBLER Fil ed Oct. I 10, 1927 Fly. 5 Fig.1

am V

Patented July 16, 1929.

tine? CHARLES IE. DOEBZER, F NEXV YORK, N. Y.

HAMMER.

Application filed October 10, 182 Serial No. 225,185. v

My invention relates to hammers and, more particularly, to the ordinary clawhammer type of such tools.

One of the objects of my invention is to produce a hammer havingjaws supplementary to the ordinary claws for drawing nails in finishing work without injuring or mare ring the face on which the hammer rests during this operation. Another object is to increase the leverage action in drawing a nail. Still another object is to enable one to make an article of this description without introducing new and dilficult problems .ofmanufacture, such as have been encountered 1n prior attempts to supply the han'uner with supplementary jaws of this character. A further object is to make the supplementary jaws reino able and interchangeable. Other objects will appear from the detailed description which follows.

In the drawings, Figures 1 to 4, inclusive, refer to one form of my invention, and Figures to 8, inclusive, to another form, the first form being the one preferred. Figures 1 and 5 are top views of the hammer embodying my invention, with the supplementary jaws in place. Figures 3 and 7 are similar top views, but with the supplementary jaws removed. side views of the hammer, partly in cross section to disclose the arrangement of the sluiplementary jaws. cross'sections of Figures 1 and 5 along the lines 4.-l and S8, respectively.

Referring; to the figures in detail, 1 is the handle. and 2 the head of the hammer, the latter being shown as having an ordinary rounded pole 4 at one end, and drawing claws 3 atthe other. In the preferred form, the pole 4: is cut out at the top to permit the insertion of the flat piece 5 which is dovetailed into the pole, as shown. A hole 6 runs through the pole 4-. The fiat piece 5 is cut out in its central region in the form ofa round hole 7 tapering to a point 8 in the direction away from the face 9 of the pole 4. The tapering edges are beveled, as shown at 10. widening inwardly. The hole 6 in the pole is in registry wit-h the cut out portion of the fiat piece The flat piece 5 is held against lateral displacement by pins or screws 11.

in the other form of my invention, illustrated 1n Figs. 5 to 8, the pole 4 is cut 'to receive the yoke 12, secured to the pole by Figures 2 and 6 are Figures 4; and 8 are screws 13. The poleA'is again provided with a hole 6 which registers with the hole 78 in the upper part of the yoke 12, the latter hole being in every way similar to that shown in the preferred form, both as to shape and as to the beveled edges.

Attempts have been made in the past to make a. hole similar to the hole 78 directly in the. pole and right through it, butithasbeer found practically impossible and, certainly, inexpedient for manufacturingpurposes to file the hole to the desired shape in this manner. In the present'invention, only the straight hole 6 has to be made in the pole, which is a very simple matter, and the difficult operation of producing the hole of shape 7-8 is transferred either to the flat piece 5 or the yoke 12. makmg the operation vquite practicable and inexpensive.

The operation of the device is so simple that it needs but a few words of explanation. lVhen a nail is to be drawn in a finishint; operation, the hammer is placed. over the head of the nail. (and this applies to the fiat head as well as to the round head nail) in such a manner that thehead of the nailpasses into the hole of the flat piece 5 or yoke 12, whereupon the hammer is moved so as to ene'a c'e the nail by the-jaws formed by the beveled edges 10. of the flat piece 5 or yoke 12, and the nail isdrawn by gradually rotating the hammer on its head, using: the claws 3 for leverage. This manner of drawinp; thenail offers-a much greater leverage action than the use of the claws3 in the ordinary wa be ause of the longer move ment possible in the operation of turning; the hammer on its head about the claws 3 as a fulcrum. At the same time, the smoothness of the faces of the claws 3, as they rest on the material worked on, insures the latter against injury from. contact with the ham mer. as this frequently occurs when the nail is drawn by means of the claws 3. and the hammer rests against the material worked on with the irregularly shaped and roughly surfaced pole 4.

The hole 6, of course, is'to permit the drawn nail to fall out or to be removed.

Should the flat piece 5, or, yoke 12, become defective from use, or injured, it is a simple matter to replace them. In other words, the supplementary jaws formed in the flat piece 5, or yoke 12, constitute an easily replaced and interchangeable article.

tions shown and described.

assume that the supplementary jaws must necessarily be formed within a flat piece like the piece 5, or a yoke, like the yoke 12, since the same kind of jaws maybe formed within many other shapes separably at tached to or inserted in the pole, and there are, of course, many known ways for fixing a separable piece of metal to another piece of metal, in addition to the dovetailing or bridging manner illustrated herein as examples for the purpose of teaching the artin accordance with the statutes. Nor do I mean to restrict myself to the particular form of the supplementary jaws as shown, since, clearly, the shape of the hole 78 may be modified in a great many ways without departing from the spirit and purpose of the invention.

Having fully described the invention, I claim:

1. In a hammer, a pole, a flat piece clovetailed int-0 said pole and having a hole tapering to a point, the direction of taper being away from the face of said pole, and inwardly widening bevels' on said flat piece along the tapering edges of said hole, said pole having a hole therethrough registering withthe hole in said flat piece.

2. In a hammer, a pole comprising a section separable therefrom and having a hole tapering to a point, and inwardly widening bevels on said separable section along the tapering edges of said hole, said pole having a hole therethrough registering with the hole in said separable section.

Nor is one to- 3. In ahammer having a pole, a flat piece cut in the center to form drawing jaws and dovetailed into the top part of said pole, said pole having a hole therethrough registering with the hole formed by the cut in said fiat piece.

4. In a hammer, a pole having a hole therethrough, a flat piece cut in the center to form drawing jaws and dovetailed into said pole, said hole in the pole registering with the hole formed by the cut in said fiat piece, and means for securing said flat piece against lateral displacement.

5. In a hammer, a pole having a hole therethrough and comprising a section separable theret'rom, said separable section having a tapering hole registering with said first mentioned hole, and drawing jaws formed in said separable section by inward ly widening bevels along the edges of said tapering hole.

6. In a hammer, a pole having a hole therethrough and comprising a section separable theretrom cut to form drawing jaws, said hole registering with the hole formed by the cut in said separable section, and means for securing said separable section in place.

7. In a hammer, a pole having a hole therethrough, and drawing jaws inserted in- CHARLES r. DbE LER.

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