US115520A - Improvement in horseshoe-machines - Google Patents

Description

D. I. PRUNER.

2 Sheets--Sh eet 1.

Improvement in Horseshoe Machines.

Eig'l Patented May 30} 1871.

I Iv 2Sheets--Sheet2.

D. I. PRUNER.

Improvement in Horseshoe Machines.

N OQHQBZO. a ented May 30,1871 I Fig-.5

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DAVIDI. rnUNER, on BELLEFONTE, rnnnsrtvanmy IMPROVEMENT IN HORSESHOE-MACHINES.

Specification forming art of Letters Patent no. 115,520, dated May 30, m1.

To all whom it may concern: Be it known that I, DAVID I. PRUNER, 0 Bellefonte, in the county of Centre and State of Pennsylvania, have invented a new and valuable Improvement in Machine for Making Horseshoes; and do hereby declare that the following is a full, clear, and exact description of the construction and operation of the same, reference being had to the annexed drawing making a part of this specification, and to the letters and figures of reference marked thereon.

Figure 1,0f the drawing is a plan view of my improved apparatus. Fig. 2 is a side elevation of the same. Fig. 3 is a vertical longitudinal section. Fig. 4 is a vertical transverse section. Fig. 5 is a vertical longitudinal section of part of one end of my improved horseshoe-machine. Fig. 6 is a detached plan view,-

showing part; of under side of movable bendin g-frame.

This invention has for its object certain improvements in machines for making horseshoes wherein the shoeis constructed from a bar of wrought-iron inserted transversely in the machine, and by a single movement of a sliding table is bent and pressed into the proper shape and pierced with nail-holes.

In the accompanying drawing illustrating this invention, A denotes a rectangular stationary frame supporting all the working parts of a horseshoe-machine embodying my improvements. B represents a moving frame constructed with sides having their upper edges curved, as clearly shown in the drawing, with lateral curved flanges b b and a projecting' case-plate, c. 0 indicates a longitudinal opening with semicircular ends. This opening is formed by the base-plate and the combined thinner-plate D. On either side of this opening, and pivoted to the plate 0, are

' two buttons or cams, d d, which are operated upon at different points, as the frame B is inoved toand fro along the frameA by the oblique-sided projections dfld. The edges of the base-plate c extend laterally beyond the sides of the frame B "so as to slide under the flanged edges of the frame A. F indicates side standards, and IN thetop part of an upright die-frame, in which slides vertically a die or punch for piercingnail-holes in the horseshoes. This die or punch consists of a ram, f, connected with a cross-head, f, which is supported by two side bars, f, sliding in suitable grooves formed in the standards F. The lower endof the ram f is shaped like a horseshoe, and provided with a number of sharpened studs, i, to pierce at one operation the full number of nail-holes. G designates a lower die, which is supported in the face of the frame A directly underneath the ram f, and is shaped like the inner curve of a horseshoe. g g are movable pins set in a transverse bar, 9, which is under the control of levers H, and when moved by them raises the pins to the surface of the die G or lowers them to the surface of the frame A. This transverse bar slides in slots 9 cut in the middle supports h of the frame A. In each of the side bars f there is cut an irregular recess, a, neartheir lower. ends, and through such recesses the curved flanges b I) pass when the frame 3 is moved, and either raise or lower the ram, according to the direction of the movement. I shows an orifice in the side of the machine on the same plane horizontally with'the curved end the frame A. The end It is on a line with the orifice I, and is raised up when the rear end of the frame B passes over the beveled end k and falls of its own gravity when the frameis moved in the opposite direction. The object of this lever is to act as a gage to the bar of iron in order to have it the proper length, and

to this end should be so arranged as to gage for diifercnt-sized shoes. The ram f is made hollow and kept filled, when in use, with cold water, to prevent it from becoming too highly heated.

This machine operates as follows: The frame B is drawn back a sufficient distance to allow a bar of iron to be properly inserted before the cams d d, the forward ends of which are thrown outward by the projections d, while the ram is raised by the curved flanges b b. The movement of the frame B is then reversed,

whereupon the forward ends of the cams d (I approach each other,'and, pressing the iron against the lower die, bend it into the proper shape. The rain then is brought down with force, and with a single stroke pierces the holes, and then rises, after which the levers H are called into action, raising the completed shoe through the medium of the pins 9 g. The shoe is finally taken up by the plate D and east through an opening to the ground.

I claim as my invention- 1. The reciprocating frame B, with curved flanges 1), rain f, slotted bars f, in combination with the frames A and F, as arranged, and for the purpose specified.

2. In combination with the subject-matter of the first claim, the cams d d, projections d

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