US37458A - Improvement in making steel horseshoes - Google Patents

Description

UNITED STATES PATENT OEEIcE.. f v

sAAo PEAoook, or sHoErsvILLE, NEW Yoan, Assrenon To HiMsELE vAND S. S. SAWYEB, OF SAME PLAGE.

IMPROVEMENT IN MAKINGSTEEL HORSESHOES.`

Specification forming part of Letters Patent No. 37,458, dated January 20, 1863.

To all whom, it may concern:

' -Be it known that I, Isaac PEAcooK, of Shortsville, in the county of Ontario and State of New York, have invented a new and useful Improvement in Machines for Aiding in the Manufacture of Steel-Plate Horseshoes; and `I do hereby declare that the following is a full,l clear, and exact description of the same, reference being had to the accompanying drawings, forming part of this specification, in which-- Figure l is a plan of the machine with one of the wedges of the yoke in section as it appears before the metal plate for the horseshoe to be formed out of is placed in it. Fig. 2 is a plan view of the machine asit appears after the shoe is finished and ready to be discharged. Fig. 3 is a longitudinal section of the same. Fig. 4 is a detached view of the foundation or shaping die, the steel plate or bar being simply bent round it. Fig. 5 is a detached view of the rack and yoke with hookwedges. In this view it is inverted.

Similar letters ot' reference in the several figures indicate corresponding parts.

The object of my invention is to render practicable the manufacture by machinery and*A manipulation of steel-plate d0uble-con cave or flat creased horsesh Jes, with the rim or crease underneath, such shoes answering admirably for cavalry-horses, as they are very durable and strong and yet exceedingly light, and also arel capable of yielding to a heavy weight and then regaining their original or proper form and position.

In Fig. 6 of the drawings a section of one of my improved shoes is shown. It will he seen thatits cross-section resembles apiece of angleiron, which form is well understood to possess the greatest amount of strength and the least height. To manufacture this style of shoe out of steel bar or plate metal, I arrange a die, A, on the forward portion of a strong solid foundation, B, which may be mounted upon an anvil-stock or other convenient support in a blacksmiths shop or other place. This die has the form of the desired shoe circumferentially, and is shaped on top with a disk or concave, so that the shoe may be formed to fit the frog of the horses foot. The die termi-` ates at its base in a broad thick plate, A', which rests directly upon the foundation, B,

being pivoted to the same by a pin, C, which is fast in the plate A', but loose in the foundation B. The hole a, in which the pin Gplays', is elliptical or in form of a segment of a circle, and large enough to allow a small amount of lat-eral play to the pin C and die and plate A A. On the under side of the plate-A of the die A a concave is formed, so that the punches b b, which form the nail-holes in the shoe, may be inserted and their lower ends'raised above the top of Ithe foundation B. The punches just mentioned are detachable, so that they may be repaired or substituted by new ones when from wear they become inoperative. The upper ends ofthe punches b b extend beyond the top of the die A a suticient distance to form the holes for nails nearly through the steel plate or bar, or so that the holes may be punched through without reheating by a hand tool and hammer. Outside the circumference of the die A', on the plate A', two (lever) forming-jaws, D D, are arranged. These jaws internally conform to the outline of the die A, and from their inner upper edge outward they are beveled o, so as to give room to the hammer, which is manipulated in finishing the shoe. The jaws are pivoted together and to the foundation B by a pin, c, at their rear ends, and they open from around the die like calipers when it is desired to place a bent plate around the die or to remove the finished shoe from the die. The outer edges of these jaws are formed with an incline plane, e. and a square shoulder, f, as represented. Outside of the jaws a yokeshaped compressor and expander, E E Ef, is arranged. It is supported upon the foundation B, and guided by means ot' angle-irons g g, as shown. This compress has a bevel or wedge hook, h, on the inner forward por` tion of each of the parts E lt also has an overhanging ange or ledge, i, on the same parts, just above the bevel-hook, as shown in Fig. 5, for holding down the-jaws. The bevel of the hooks IL h moves'in contact with the inclineplanes e 6, andthe hooks themselves take hold of the shoulders ff of the jaws D. The first ot' these results occurs when the yoke is moved forward, and the last when it is drawn back. The first closes the jaws;

the last opens them. The part E of the com' under side, and these teeth match a pinion, El, of a shaft, I, which is arranged on the foundation B and operated by a hand-lever, J, as will be evident from the drawings.

The lever, shaft, pinion, and rack constitute a means for operating the yoke with a gradual motion.

The operation is asA follows: I take steel plate -or thin steel bars and cut the same to the proper length and width b v shears. These are het77 in a furnace. and bent into the form of a half-circle, and then placed around the die and brought to the desired form of the horseshoe circumferentially by moving the yoke-compressor forward and closing (thereby) the jaws upon tilemetal plate orbar. This done, Itake a hammer, and,

commencing at the toe of the shoe, hammer down the metal to the angular form shown in Fig. 3, and otherwise shape the shoe as shown in Fig. 6. The hammering down of the metal causes the punches to make impressions for the nails nearly through the horizontal portion, and then by drawing back the compressor the jaws are opened so that the shoe can be readily removed and another plate placed around the die. The further puncturing of the shoe is accomplished by a tool and hammer without reheatin g. In case the metal plates are-of diiferent thicknesses, the oblong axial pin-hole allows the axis with the male die te accommodate itself thereto. The enlarging of this hole also allows the said die to adjust itselt` better to the jaws as they approximate to its circumference.

What I claim as my invention, and desire to secure by Letters Patent, is-

l. The combination of the forming-die A A', having detachable punches and a shifting axis, and the pivoted jawsv D D, having inclined planes and shoulders on their outer edges, and the compressor and expander E E, having the wedge-hooks h h, and holdingdown flanges or ledges on the front portions, substantially as described,or the equivalent thereof, for the purpose set forth.

2. Making steel horseshoes of the construction represented by a combination of machine and hand work, substantially as described.

Witnesses: ISAAC PEACOOK.

E. YEAMANs, BUunUs Oseoon.

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