US309620A - hausman - Google Patents

Description

(No Model.) v y J.HAUSMAN.

HAMMER DIES.

No. 309,620. Patented'neo. 2s, 1884.

. JOHN HAUSMAN, NEVABK, NElV JERSEY.

HAMMER-nre.

SPECIFICATION forming part of Letters Patent No. 309,620, datedDecember 23, 1884.

Application filed Api-i127, 1883. (No model.)

.To @ZZ whom t may concern:

Be it known that I, JOHN Hausimiv, a citizen of the United States, residing at Newark, in the county of Essex and State of New Jersey, have invented certain new and useful Improvements in Dies for Hammers; 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 art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to letters of reference marked thereon, which form a part of this specification.

This invention relates to an improved means for forming hammers, and more especially those used by machinists.

The invention consists in such relation and construction of parts as Will be hereinafter set forth, and finally embodied in the claim.

In the drawings, in which similar letters of reference indicate like parts in each of the several figures, Figure l is a plan view of a lower die with a hammer therein. Fig. 2 is a plan of the under side of the upper die. Fig. 3 is a vertical section of the dies together with a hammer between them. Y

In forming a hammer completely in the ordinary man ner and with the usual means there is a great deal of labor required, the tool passing through many hands and operations during the process.

By the use of my improved die the hammer is struck out in the dies and needs only to be trimmed and ground to complete the op eration, thus effecting a great saving in time and consequently in the cost of production.

Referring to the accompanying drawings, A is the upper die; B, the lower die, the depressions in the dies being counterparts one of the other. Said depressions when united or brought together conform to the shape of an ordinary machinists hammer, as indicated in the drawings, and have within each a punch, a, rising flush with the surface ofthe dies. Sai d punches taper toward the top or meeting surfaces of the dies. The punches are inserted through the outer faces of the dies and backed up by a metal plug, b, as indicatedin Fig. 3; or said punches may extend through the dies, the plug being dispensed with. rlhe punches, if desirable, may be inserted in the upper surface and screwed or otherwise secured therein. I make the punches removable, so that they can be taken out when worn by use, thus increasing the length of service ofthe dies.

By means of having the punches tapered to the center, as described, the eye is much easier formed, the tendency being to press a portion of the metal toward thesides in every direction, instead of all toward the center. Moreover, after the swaging is completed the removal of the dies from the hammer is for the same reason very greatly facilitated, it being done without any difiiculty. Besides, the shape of the eye thus formed by the tapering punches is such that the securing of the handle therein is also facilitated, as it can be done without special preparation of either the eye or the handle for the purpose, as will be readily understood.

VIn forming a hammer a given portion of a round bar of steel suitably prepared by being partially iiattened, andthe end that is to form the ball ofthe hammer reduced in diameter,

is placed between the dies, and a few succes sive blows struck until the dies come nearly together, thus forming the eye and body of the hammer at l'the same time. The hammer is then passed through a trimmer, removing the burr around the tool, and the web d, Fig. 3, punched out. After being trimmed it is cut from the bar and ground, and another given portion of the bar prepared as before, and the operation repeated.

I am aware that dies for forming hammers and provided with punches for forming the eyes therein are not new, and I do not claim the same, broadly, but,

Having thus described my invention, what I claim as new is- The herein-describcddie for making hammers, consisting of the twin dies A and B, each of which is provided with correspondingly similar projections and recesses, and each also provided with a removable punch, tapering toward the face of the die, in which it is se' cured, and tlush with said face, each die constructed to facilitate the insertion and removal of said punches through that side of the die which is opposite the side which impresses the metal, all substantially as described.

In testimony that I claim the foregoing I have hereunto set my hand this 2d day of April, 1883.

F. F. CAMPBELL, OLivER Dimitri.

IOO

Images