US67131A - Gilpin mooee - Google Patents

Description

GILPIN MOORE, or MOLINE, ILLINOIS, AssIeNOR Tof-DEERE a COMPANY,

OF SAME PLAGE. f

Letters Patent No. 67,131,0Zated July 23, 1867.

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TO ALL WHOM IT MAY CONCERN: j

Be it known that I, GILPIN MOORE, of Moline, in the county `of Rock Island, and State of Illinois, have invented certain new and useful Improvements in Dies for Making Plough-Braces; and I do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, making part of this specification, and to the letters of reference marked thereon, like letters indieating like parts wherever they occur.

To enable others skilled in the art to construct and use said invention, I will proceed to describe it.

My invention consists in the construction of a set of dies for the manufacture of braces for ploughs, as hereinafter described. l

Figure 1 is a face view of the upper die.

Figure 2 is a similar view of the lower die.

Figure 3 is a perspective view of the dies united.

Figure 4 is a side view of the dies, representing the positions of the blank during the'process of being operated upon. 1 v

Figure 5 is an edge or end view of the lower die, with the upper die represented in place in red lines.

In the manufacture of ploughsof wrought iron and steel, 'such as are used in the prairie soils of the West and South, it is necessary to use a brace between the rear portions of the land-side and the mould-board; and this brace has to be madeof a special form, adapted to the size and style of' plough. Heretofore it has been customary to forge these braces by hand, which is a slow` and expensive process. Besides, when thus made, it is almost impossible to make them perfectly uniform, thereby rendering the plough, when completed, more or less imperfect, and consuming much time in the iitting of the brace and the other parts. Toobviate these diieulties,-I propose to form these braces by means of dies, which I have constructed. for that-purpose.

I construct my dies of two blocks of metal, as represented by Aand B, the former representing the upper andthe latter the lower die. In the face ot the block B, I cut a recess, a, Of a size corresponding to the blank' of which the brace is to be formed, these blanks being first cut in proper lengths from a bar of iron or steel of suitable width and thickness. This recess a is straight on the horizontal face of'the block, the latter being bevelled at the line e near one edge, and the recess a being continued ot' the same width and depth along the face of the bevelled portion also, as shown in fig. I. The upper block A is constructed with a smooth'i'ace, to fit on the face of B, and has a projecting lip, C, corresponding with the bevelled edge of block B, as shown in g. 3. The blank being placed in the recess a, and the dies forced together, the end ot' the blank, where it projects over the inclined or bevelled face, is bent ,to correspond, and, when taken out, has the form representedy by a2, the bent portionbeing indicated by o. Anotherrecess, b, is also formed in the block B, as shown in fig. 1, of proper size to receive the piece a edgewise, the bottom of said recess being formed on a curve, as represented by the red lines -in fig. 4, and a recess, b1, being formed in the upper block A, as represented in iig. 2, this latter recess being made convex on its surface, and running out to the surface ,at the line e, where the projecting lip C begins, the rear end of said recess being deep enough to permit the end of the blank to rise up therein, as it is bent into the form representedby ZF, when the dies arengain brought together. A portion of the face of the block B is made lower than the rest, as represented by D vof fig. I, the block A having a corresponding projection, D. The rear portion of the face of block'B is then bevelled oli` along the lin'e u, at an angle of about forty-five degrees, more or. less, forming` a depression, as shown at P of iig. 1, the block A having a corresponding projection, P', as represented in iig. 2. A horizontal lip, r, projects from the side of the plane part of the face of B, as shown in gs. 1 and 5, to hold the brace b2 in position while being iinished.

After it hasbeen bent into the form represented by b2 it is placed on block B in the position represented by c` of tig. 1, when, by pressing the dies together, the end is bent down over the inclined surface, along the .line u, which completes the brace, and giving to it the form represented by c2 in perspective, the end o being thus bent and made to stand at just the angle required to t against the land-side, and the end n being bent at the proper angle to tit the mould-board, while the body between these parts is curved or bent edgewise suiiciently to bring the outer faces of the parts n and o at the required inclination in the horizontal plane, to adjust them to the corresponding surfaces of the land-side and mould-board.

By these means I ain enabled to form the braces Withv great rapidity and perfect uniformity, and thus to l make a. better and cheaper plough. Having thus described my invention, what I claim, is

The dies A end B, 'constructed substantially as shown and described, for making plough-braces, as set forth.

GILPIN MOORE.

Witnesses:

S. H. YEME, J. C. A. Promul..

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