US97021A - Improved horseshoe-machine - Google Patents

Description

Cihtiied ,gia-tes WESLEY ANDERSON, OF PITTSBURG, PENNSYLVANlA.

Letters Patent No. 97,021, lla-ted November 23, 1869.

IMPROVED HoRsEsH'oE-MACHINE.

The Bcnedule referred to in these Letters Patent and making part of the same.

To all whom it may concern.-

parts heilig iu the same position as in fig. 1.

Figure 3 is a longitudinal central section of the front end oi'the machine through the line xr in fig. 2.

Figure t is a view of' the under side of the upper fin'ming-die.

Figure 5 is a cross-section ofthe upper formingdie inverted, through the line as x, fig. 4.

Figure (i is a perspective representation of the lower forming-die on an enlarged scale.

In the several figures, like letters denote the same parts.

My improved machine forms a horseshoe out of a straight bar or blank of proper length, bending, beveiling, punching, and delivering it finished, at one operation.

A A is the-frame-work of the machine, the front portion (almost half) haring a horizont-al table or bed, B, which supports those parts of` the machine which are employed directly in making the horseshoe.

Toward the rear end of the frame is the main or camlshaft C, to which power is applied to operate the machine. Y

On this shaft G is a cam, u, which works within a i cam-yoke, b, which cam-yoke is supported bythe rear and fi-ont slides c' c.

The front slide c works longitudinally with a reciprocal motion in the central line of the machine between guides d d.

To the front end Cifthe front slide c are pivoted two jaws, D D, which extend forward, one on either side of the lower forming-die E.

The surface ofthe inner edge of each of these arms' is so shaped as to correspond exactly with the outer edge of one-half of anished horseshoe, from the toe to the heel, and the contour of the bottom die (which is embraced by the jaws D D when they are closed,) is that of the inner edge of a finished horseshoe, so that the jaws bending and compressing a bar of iron or shoe-blank around the lower die, form it into the requisite horseshoe-shape.

The forward motiouot' the jaws D D is produced by the slide c, but the side metio; toward the die E,

necessary to shape the shoe, is-efiected by curved guide-plates e e, one ou each side of the die E.

Each of these guides e is attached to an adjustable guide-block, f, so that, hy means of' set-screws s s, the degree of curvature to be given to the horseshoe hy tlnf'jaws D l), may be adjusted to correspond with the curvature of' the lower forming-die E.

The jaws D D are caused to follow the curvature oi" the guide-plates c e by means of a roller, y, attached to the outside of the jaws, near their front end, which presses against and follows the curvature ofthe guideplate caud a pin, li, which is attached to the upper plate Il, by which the roller y is attached to the jaw D, the pin i pressing against the onterf'ace, as the roller g does against the inner face of the guide-plate e.

The lower 'forming-die E has two operativo laces, one, m., vertical, which is curved to the required shape of' the horseshoe, and the other, u, horizontal, sur# rounding the verticai part in as a rim or base, on which the shoe-blankN rests, when being compresser-l between the lower forming-dh` ll and the upper forming-die ls.

The rim or hase n may he raised above the bed li of' the machine, (as in the drawing) or may he set down on a level with the surface of the hed, if preabove the bed," which avoids friction.

At the forward extremity ofeach ofthe jaws D D, is a recess or step, l1, on which notches the ends ot' the bar, forming the shoe-blank, rest, as seen in fig. 2, when the blank is fed into the machine.

The bottom oi these steps h is on. a level with the base or rim n of the lower finming-die E.

In the base of the lower forming-die 'E is a series of vferred, but if set above the bed, the jaws are raised holes, o, (see g. 6,) corrcspoinling to the holes to he made in the horseshoe.

Through each of these holes projectsa bit, 1), (see fig. 3,) which, when the shoe-blank is compressed between the upper and lower dies, pierces it, thus f'orm ing the nail-holes in the shoe.

These bits p are operated simultaneously by means of a lever, G, seen in fig. 3, extending under the bed ofthe machine, pivoted at q, and operated by means' of a roller, r, projecting from one side of' the cam u, so that by the passa-gc of the roller r over the end ot' the lever G, a sudden upward motion of' the bits p, through the lower forming-die E, is effected, the bits immediately \\\'itl1drawing by the action of the spring t, which depresses the forward end of' the lever G.

In order to keep the slice-blank in` place on the lower forming-die, so that it may not slip up at the toe of the shoe, away from the vertical edge m of' the.

die E as it is being bent aroundit by the jaws D D, a slide, fu, rests in a recess" on top of the lower die E, with its end projecting beyond the edge of the raised u is eilectcd by a eaxnrod, w, operated by ,a cam, H

portion m of the die E, and over the base n at the toe ot' the die, so that after the blank is fed into thc machine, with its two ends in the steps h 11,'and the'cen-` tre ot' thel bar resting on the rim of the die E just at y the tot, and betere the jaws 'D D begin to move, the' slide n is moved, by its lever c, until its extremity passes over the bar or shoe-blank, thus holding it in place until it is nent around the die E by the jaws D 1), butjust as the upper die F is about to press on to the shoe-blank, the end of the slide u is withdrawn, so as not to prevent the descent of the upper die li1 to compress the shoe-blank, This projection of the slide 7 on the end of the camshaft C, and its withdrawal is produced by a spring, 9:, operating on the lever c.

'lhe upper forming-die F has a cavity, J, correspondirl g in six/ze and shape with the raised portion m ot' the iower forming-die E, and of such depth that'Jthe ,edges or'rxn y of the die F, surrounding the cavity J,

may pass down the curved face of the raised portion of the die E, and press upon the shoe-blank, compressing and shaping it between the under face of the rim y of the upper die and the base n of the lower die E.

lEhe under face of the rim Q, of the upper formingdie F,.is not a plane surface, but has swellings on either side of the toe, so as to make the proper bevel on the npper face of the horseshoe.

The projecting rim y of the upper die F, fitting over the raised portion m of the lower die, prevents any flash 7 or iin being formed around the alge of the horseshoe, when compressed as above described.

The upper forming-die F is operated by means of a lever, K, attached rigidly to the horizontal transverse shaft L, which works in bearings M, attached to the sides o i" the machine.

- The long arm K of this lever extends backward over the cam-shaft C, and is operated by a roller, Z, projecting from the cam a on the opposite side from the roller yr, which' gives motion to the lever G.

Other modes of operating the upper die F may be used, so as to secure a direct up-anddown motion, or to 'increase the power.

The shoe, when inishethis delivered frolnthe lower die by means of two or more lif'ters k lr, (see fig. 3,) attached to a treadle, l, (see g. 2,) which is operated by foot, or by power from the machine.

The lifters are rods, which pass up through the base of `the lower die, when the treadle l is depressed, and raise up the heels of the shoe, thus displacing it from' the lower die.

To make horseshoes of different shapes or sizes, dif- V ferent dies and corrcspondiiig-shaped jaws are employed, these part of my machine being removable for the purpose of making such changes.

Having' thus described the parts of my machine and their functions, I will proceed bricliy to explain its operation in making horseshoes.

A bar of iron of rectangular shape, and proper width and thickness, is out into blanks of proper length.

These blanks are first Lcreased, by any suitable means, and are heated before being fed into my machine. I

A blank, N, fig. 2, is laid on the jaws D D, by placing its extremities in the steps It h. The slide u then advances, so as to project over the blank at its middle, where it rests on the Ibase n of the lower die E, and thus holds it down. The jaws DD then advance and close around the lower die E, bending the blank around and against the raised surface 'In of the lower die. The upper die F then descends over the lower die E, the slide u now receding to let it pass, and the horseshoe is shaped on its upper and lower faces by the edge 'y and base n of the upper and lower dies respectively. The bits pp then are'proiected through the hase of the lower die, and punch theholes for the nails. flhe horseshoe being thus nished, the upper die rises, and the horseshoe is delivered by means of 'ille litters before described.

Having thus described the construction and operation o 'my machine, j

W'hat I claim as my invention, and desire to secure by Letters Patent, is l l 1. The jaws DD, constructed substantially as de` scribed, and in thciropcration serving to support, convey, bend, told, and embrace the blank,fin the manner described, incombination with the dieEI'orbending the horseshoe-blank, substantially as described.

2. The jaws D D, constructed, operated, and subserving the functions, substantially as, described, in combination with adjustable guides c a, for securing the requisite compound lmotion lfor bending the baror blank around a former, substantially as described.

3. The slide a, and the mechanism for actuating the same, in combination with the lower die E and jaws D D, arranged and operated substantially as described.

In testimony whereof, I, the said 'WESLEY ANDER- soN, have hereunto set my hand.

WESLEY ANDERSON.

Vitnesses:

Joes GLENN, Tiros. B. Kenn,

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