US22812A - Horseshoe-machine - Google Patents

Description

UNITE STA `ES AEN OFFICE.

IVM. IV. LEWIS, OF CINCINNATI, OHIO.

HORSESHOE-IYIACHINE.

Specification forming; part of Letters Patent No. 22,812, dated February l, 1859; Reissued March To all whom it 'may concern:

Be it known that I, IVILLmM IV. Lewis, of Cincinnati, in the county of Hamilton and State of Ohio,l have invented certain new and useful Improvements in Machinery for Making Horseshoe-Iron; and I do hereby declare that the following is a full, clear, and exact description of the same, reference being hadl to the accompanying drawings, forming a part of this specification, in which- Figures l, Gand 7 Vare front views showing the rollers at different stages of the operation. Figs.r 2 and S, are transverse and longitudinal sections of the same. Fig. 3, is a face view of a piece of iron rolled to the form to be bent into a horse shoe. Fig. 4, isan edge View of the same. Fig. 5, is a transverse section of the same.

Similar letters of reference in each of the several figures indicate corresponding parts.

Before stating my invention, I deem it proper to remark that I am aware that horse and ox shoe iron has'been produced by machinery, and that said machinery in some cases consists simply of two rollers mounted or dressedl With grooves and ribs and in other cases of four rollers properly dressed for giving a certain configuration to the iron from which the shoesare to be formed, but as in none of the machines before used, pro` vision for reducing the iron so as to have the horse shoe iron concave on its underside, and thin on its inner edge and thick on its -outer edge on account of its production not having been accomplished by means of the combination of lateral pressure with longitudinal pressure in the rolls employed the successful manufacture of such iron has not before my invention, been attained.

The nature of my invention consists in the combination in a pair of rolls of a groove and creasers which tvill, by their joint operation exert pressure 1n a lateral as well as a longitudinal direction and thus produce by a continuous operation horse shoe iron which is concave o-n its upper side, thin on its inner edge, thick on its outer edge, creased on its under side and gradually diminished in Width from heel to toe, as hereinafter specified.

My invention consists in dividing the rollers radially and vertically so that the devices Which give the desired configuration tothe horse shoe iron may be made separate from the rollers and facilitiesshall be afforded for renewing the same whenever they become Worn or imperfect in their operation or Whenever it is desired to insert devices for configuring the iron, of a size and character adapted forproducing horse shoe iron for making large or small shoes.

In Vthe example of my invention represented in the drawing, the rollers are specially adapted to feeding the bar at intervals to the bending" machinery patented by Ine J une 28, 1858, shaping it as they do so, and thus dispensing With the vertically-moving dies in my patented machine above mentioned. The lower roller B, `is perfectly cylindrical except that itl hastwo separate curved projections a, a, which are struck from the same center; these projections I call the creasers, they serving toproduce the creases see g, g, Fig. 3) in the horse shoe iron. The circumference of the roller B, is equal to double the length which the piece of bar which forms the shoe has after it has been rolled, and the creases a, a, consequently extend nearly half Way around it. The upper roller A, is cylindrical externally `and contains a groove b, extending all around.` This groove is made to gradually widen on a curve line from m, to m', and to decrease in Width from a2, to m2, on the same curve, as shown in the' drawing, so that the shoe shall be broad at the toe and gradually decrease in Width toward the heels of the shoe'. The bottom of the groove on one half of the circumference of the roller' is made eccentric, as shown at b', ZJ, in Fig. l, to roll the piece rather thinner in the middle and gradually thicken toward the ends, and the said eccentric portions have a conical projection along one side, as shown at o, c, Figs. l, 2, 6 and 7, to produce a bevel along the inner edge'of the piece on the opposite side to that on which the creases are formed, such bevel forming the concave of the shoe. The length of the above described half of the circumference of the bottom of the groove must be equal to the semicircumference of the roller B. The depth and Width of the several portions of thishalf of the groove are such as to make the shoe of the requisite thickness. The other half of the circumference of the bottom of the groovel is concentric and deeper as shown at 71., 7L, in Fig. l, and Wide enough to receive the bar from which the shoes are to be made Without gripping it against the roller B.

In the pair of rolls represented, it Will be readily understood that only one half of the circumference is operative, the bar not being gripped by the half I), Z), of the groove and consequently not being fed forward. This suspension of the operation is for the purpose of allowing the operation of the bending apparat-us (which is not shown) to take place. The bending of one piece is performed While the deep part h, 71, of the groove is passing the bar. The pieces after having been formed as shown in Figs. 3, I and 5, may be cut off by a cutter attached to one of the rollers or otherwise suitably applied.

I Will remark that the operative portions of the rollers may occupy less than one half. of the circumference, but they must of course occupy corresponding portions of both rollers.

Then the rollers are to be used for rolling the bars into a series of lengths, like the pieces shown in Figs. 3, 4; and 5, the other halves of the rolls are to be formed like the operative portions of the rollers described, or the rollers may have circumferences composed of a continuous series of such operative portions in any number; and a bar after leaving a pair of ordinary rollers may be run, Without reheating through a pair of such rollers and be subsequently cut in pieces and formed into shoes by bending in any manner.

The creasers a, as, may have attached the punches for punching the nail holes, or the said holes may be punched by a subsequentoperation.

Operation: The bar of metal being introduced to the rolls which We Will suppose are adapted for making merchant horse shoe iron to be bent in any Way desired it is operated upon gradually by the conical projections of the grooves and the curved projections or creasers, and as said projection gradually increases and decreases in Width on a curve the metal is pressed with a concave on the side which is to form the upper side of the shoe of gradually increasing Width from the heels to the toe of the shoe, at the same time that the metal is thus being pressed the creasers form the creases g, in it on the side which is to form the bottom of the shoe; owing to the concave being formed on the metal and no vertical room being allowed between the rollers for the displaced metal which occupy the place of the concave, a lateral displacement of the metal takes place and the displaced metal fills that portion of the groove b, which has a concentric circumference and that portion which gradually increases in width from' m to a and decreases from 0c to 0:2, and forms the Widest part of the shoe, and said metal owing to the creasers being on a curved line corresponding to the curved line w, rc2, is pressed compactly and perfectly against the curved collar of the groove by the same pressure which is employed to form the crease in the metal and thus the operation continues until a series of impressions on the metal suitable for forming a series of perfect shoes bythe simple operation of cutting olf and bending the parts impressed, are produced. A

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

l. The combination in a pair of rolls of a groove b, and creasers a, which will, by their joint operation exert pressure in a lateral as Well as a longitudinal direction, substantially as and for the purposes set forth.

2. In combination with the above, I claim dividing the rollers radially and vertically substantially as and for the purposes set forth.

IV. IV. LEVIS. I/Vitnesses J. I-I. GETZANDANNER, Jos. HARRISON.

[Fnzs'r PRINTED 1911.]

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