US70998A - Henry hammond - Google Patents

Description

@einen tetrs @anni @frn HENRY HAMMOND, OF HARTFORD, CONNECTICUT.

Letters Patent 70,998, dated November 19, 1867; antedated October 22, 1867.

IMPROVED DIES POR PORMING THE GLAWS 0F HAMMERS.

tlg .tlgrtuleteferret in it tigen @niet atmt mit making yad ni its tame.

TO ALL WHOM IT MAY CONCERN: l

AB'e it known that I, HENRY HAMMOND, of Hartford, in the county of Hartford, and State of Connecticut, have invented a new and useful Improvement in the Mechanism for Making the Claw of Hammers; and I do hereby declarethat the following is a full, clear, and exact description of the onstruction and operation ofthe same, reference being had to the accompanying drawings, same letters indicate like parts in the several gures.

My invention consists in cutting and forming the claw of hammers in a die or swage by means of the mechanism herein described, instead of cutting the claw by a chisel in the usual manner.

The object of this invention is to facilitate the execution of the work, to give uniformity of shape and completeness of finish thereto.` In the accompanying drawings- Figure I is a top or plan view of-the bottom die."

Figure 2 is a side section view through the centre of the hammer, blank, die, and cutter.

Figure 3 is a view of the under side of the upper die arranged for adjusting and holding the cutting-dio in place.

Figure 4 is a view of a hammer havingits claw cut and formed.

A is the lower die, which is secured iuor ou the bed or base of a press or drop. B is the upper die, which is secured in the stock or hammer of -a press or drop, in which the cutter C is arranged, and adjusted by means of intervening strips of metal G, and rmly'secured therein by having one side of the cutter fitted dove-tailing intothe die, and rmly compressed by a key, I, or its equivalent. K is a cam, or its equivalent, secured to the lower die just o ue side of the depression formed to receive the body of the hammer H, the object of which is to quickly and firmly fasten the hammer H in position directly under the cutter C, so that as the stock of a press or the hammer of a drop descends, it will cntA the slit M, and in doing so will also spread the prongs N of the claw to ll the mould at D D, while the two face surfaces of the dies shall come firmly together, thus firmly compressing the metal into the form of the mould, and thereby producing a perfect-shaped claw in its capacity to grapple a nail or spike, and also in its appearance.

By the use of this improvement as now in effectual operation, I am enabled to produce a given quantity of Work in one hour, which, under the common process, required several hours. v

I believe I have thus shown the operation of and described the construction of my improved mechanism for cutting and forming the claw of a hammer, so as to enable others skilled in the art to make and use the same.

What I claim as my invention, and ,desire to secure by Letters Patent, is.- 1. vThe combination of'the dies a and b and cutter c, all constructed and 'arranged substantially as described. 2. In combination with the dies a and b and cutter c, I claim the cam K, arranged and operating substantially as described. v

HENRY HAMMOND. [L s.]

Witnesses:

N. C. WrLDER, J. W. BLISS.

and to the letters of reference marked thereon. The

Images