US332909A

US332909A - Nail-extractor

Info

Publication number: US332909A
Authority: US
Publication date: 1885-12-22
Anticipated expiration: 1902-12-22

Description

NIT n STATES PATENT Erica.

IsAAo HEWSTON KIZER, OF RIVERSIDE, CALIFORNIA, ASSIGNOR OF rwo- THIRDS TO RUssELL PO TER WAITE, OF sAME PLACE, AND ALFRED W. EAMEs, on Los ANGELES, CALIFORNIA.

NAlL-EXTRACTOR.

SPECIFICATION forming part of Letters Patent No. 332,909, dated December 22, 1885.

Application filed September .13, 1885. Serial No. 177,957.

To all whom it may concern.-

Be it known that I, IsAAo HEWSTON KIZER, a citizen of the United States, residing at Riverside, in the county of San Bernardino and State of California, have invented certain new and useful Improvements in N ail-Extractors, and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the IO art to which it appertains to make and use the same.

My invention relates to an improvement in nail-extractors, which is particularly applicable to the pane of a hammer; and the objects I5 to be secured thereby are, first, to provide a more effective means of drawing nails than the ordinary claw, and, second, to so strengthen the. pane of a hammer as to render it less liable to fracture from the concussion produced by blows struck with said hammer.

Heretofore,in all the nail-extracting devices of which I am aware, thejaws which constitute the nail-extractor moved in planes parallel to the nail to be extracted. In the device embodying my invention thejaws move in surfaces which are substantially trans verse to the nail. In the former case a nail-extractor did not materially increase its hold on the nail as it was moved to extract the same, and was thereby liable to slip. In the latter case the jaws increase their hold or grip on the nail with the movement of the extractor, thus forming an effective clamp, as experiments have sufficiently demonstrated. To substantiate this, it may be stated that experiments made with my nail-extractor have shown that a nail whose point protrudes a quarter of an inch above the surface of an inch board may be pulled completely through the board in the direction in which the nailwas originally driven, thus causing the head of the same to pass completely through the board, unless the strain was sufficient to break the nail.

My invention consists in providing a nailextractor with a notch or notches, preferably V-shaped at its side instead of at its end, as heretofore. By this lateral arrangement of the notch I am enabled to extract nails which have (No model.)

been inaccessible to the claws of any. construction of a hammer of which I am aware- 5r.

as, for example, a nail driven into the floor close up to the wall. By dispensing with the ordinary longitudinal incision in the pane of the hammer the said pane is appreciably increased in strength. Additional strength may 5 5 be imparted to the said pane by providing the eye of the hammer with a collar integral therewith, and providing the pane with a central rib or fin extending along said pane to the collar.

Referring to the drawings, Figure l represents a perspective view of the hammer embodyingmy invention. Fig. 2 represents a top plan view thereof. Fig. 3is aview thereof in perspective without the rib. a

A is the head, which may be cast or formed in the usual manner; and B, the handle of the hammer. The pane a of the hammer is provided with a notch or a series of notches, b, which may be graduated to suit different-sized nails or spikes. These notches are each V- shaped transversely as well as laterally of the pane, the opening of the V being at the side 7" and bottom 9, respectively, as shown in Fig.

3. The disposition of the upper edges, 1) b,

of the notch is best shown in Fig. 2. The edge b, which is nearest the end of the pane, is paralleltherewith. Theother,b,isobliquethereto, thus forming a V-shaped edge at the top. This disposition is to prevent the extractor from slipping when drawing the nail.

Centrally and lengthwise of the pane extends the rib c, which abuts against and is integral with the collar 61, forming the prolongation of the eye of the hammer, into which the handle or stock B is inserted. This rib and collar may, however, be dispensed with, as shown in Fig. 8.

It is obvious that while in the old form of nail-extractor the jaws are liable to slip along the body of the nail, the jaws of my extractor will firmly grasp the nailwith increasing pressure when an attempt is made to remove the same.

The views shown and described represent what I consider the best embodiment of my 5 invention. I Wish it to be understood, however, thatI do not confine myself to the precise construction shown, inasmuch as obviously numerous constructions may be devised without departing from my invention.

All the parts of the hammerhead are cast or formed in one piece.

I am aware that a nail-extractor has been attached to the side of a hatchet, as shown in the patent to 1%. H. Morrison, July 21, 1874, No. 153,364; but such construction I disclaim.

By that device a nail is pulled in the same manner as'with the claws of an ordinary hammerthat is, the extractor is placed in such position that the nail passes between its jaws, and is then moved so that the edges of the jaws which grasp the nail remain horizontally opposite each other during the entire operation.

In my device the edges of the jaws, as the nail is pulled, move in such a manner that when the extractor is turned sufficiently one of said edges will be directly over the other. Such movement is that which renders my extractor effective, because as the jaws come nearer to the same vertical line their edges more firmly grasp the nail.

Having fully described my invention, what I desire to claim and secure by Letters Patent 1S-- 1. A nail-extractor having abearing-surface and a notch in one of its sides, said notch having inclined faces, the surfaces of which intercept the bearing-surface of the extractor and form edges b I), for grasping the nail, substantially as described.

2. A nail-extractor having a bearing-surface and a notch in one of its sides, said notch hav ing inclined faces, the surfaces of which intercept the bearingsurface of the extractor and form edges 2) b, one of said edges being at substantially right angles to a line drawn lengthwise through the extractor, and the other being inclined thereto, substantially as described.

3. A nail-extractor having a notch in one of its sides, said notch having inclined faces, which intercept each other at the inner limit of the notch, substantially as described.

4.. A nail-extractor having a bearing-surface and a series of not hes of various dimensions in its sides, each of said notches having inclined faces, which intercept the beai'ing'surface of the extractor and form edges 12' b, for grasping the nail, substantially as described.

5. A device for pulling nails having a nailextracting notch at one side thereof, a hole for the insertion of a handle, a collar surrounding said hole, and a brace or iin extending from said collar to or near the end of the device, substantially as described.

In testimony whereof I have affixed my signature in presenceof two witnesses.

lSAAO IIEWSTON KIZER. Vitnesses:

JOHN E. BEALL, GEORGE M. BUCKEY.