US68446A

US68446A - Christian konold

Info

Publication number: US68446A
Authority: US
Publication date: 1867-09-03
Anticipated expiration: 1884-09-03

Description

@with gratte datent @ffice IMPROVBD DIE FOR SWAGING MATTOGKS, HOES.

dige .rlgrhuie referrer in it tipa tetters ttnit mit linking init nf tige tiene.

TO ALL WHOM IT MAY CON CERN:

Be it known that I, CHRISTIAN KONOLD, of Snowdon township, in the county of Allegheny, and State of Pennsylvania, have invented a new and improved Die for Forging Mattocks, Grub-Hoes, and similar articles; and Ihereby declare that the following is a full, clear, and exact description thereof', reference being had to the accompanying drawings, forming part of this specification, and to the letters of reference marked thereon.

My invention consists in constructing a die for forging mattocks, &c., with two faces, one of which extends across the die at one end, and is shaped so as to form the blade of the implement, with thin sides, leaving a longitudinal curved ridge down its centre for the purpose of increasing its strength in the'l proper place.y The other part of the die is concaved, or is formed with a concave face extending from the opposite end of the die to or near the middle, where-it terminates in an abrupt incline for giving the cutting edge its proper bevel, while the concave part rounds the face of the blade some distance therefrom towards the eye.

To enable others skilled in the art to understand and make my invention, I will proceed to describe its construction by reference to the annexed drawings.

This dieImake of'steel or cast iron, and of the shape shown at Figure 1, which indicates that itis intended to be attached to an anvil, and for this purpose it is provided with a longitudinal dove-tailed tongue, S, to be inserted in a correspondingly shaped groove in the anvil, and held in place by wedges, screws, or otherwise, after the manner of those used for similar objects. On top of this die A are two faces, B C, one of which extends quite across, an'd is provided with two curved'surfaces, T T, gradually inclining towards each other to the middle, forming a Haring gutter or groove, F, extending upward and outward to the edge. The other part or portion of the die A is provided with a concave face, B, open at one end, II, and terminating at the other in a plane incline, J. The whole of the diete be made as large and strong as the nature of the work may require.

The operation will be readily understood. The eye of the implement D being first formed, that part intended for the blade G is laid, face down, on the curved surfaces T T, crosswise of the die A, and in this position is submitted tothe repeated action of another die of corresponding size, but having a flat face. This operation not only reduces and spreads the metal, but gives it the requisite form indicated by the cross-section of a mattoek-bladc, (Figure 2.) The end of the blade is then placed face down in the concave B at the other end of the die, the extreme point resting en the incline J, and submitted to further hammering, or until the Vface of the blade G becomes rounded or assumes the shape of the concave B a short distance back, and the cutting edge L isrgiven the requisite bevel.

Having thus described my invention, what I claim is- A die for forging mattocks, grub-hoes, and similar implements, having two faces,0nc of'which extends across the die at one end, and is shaped so as to form the blade with thin sides, leaving a longitudinal curved ridge down its centre, and making the other part ofy the die with a concave face, terminating at; one end in an incline for giving the cutting edge its proper bevel, and rounding thc face of the blade some distance therefrom towards the eye, as hereinbefore shown and set forth. A

l CHRISTIAN KUNOLD.

Witnesses:

JosIAH W. ELLs, JOHN K. LARGE.