US307145A - Die for making ox-shoes - Google Patents

Description

(No Model.) 2 Sheets-Sheet 1. H. T; RUSSELL.

DIE POR MAKING OX SHOES.

No. 307,145. l Patented Oct. `28, 1884. jcy y :9* l .a ja Y s` Hex*///////////////////I// \V Zf/ese: 6 In verzo;

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(No Model.)

H.`T. RUSSELL.

DIE FOR MAKING 0X SH01-3s.

Patented Oct. 28, 1884.

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. at the heel and narrow at the toe.

UNITED STATES PATENT OFFICE.

HENRY T. RUSSELL, OF CHICAGO, ILLINOIS.

DIE FOR MAKING OX-SHOES.

SPECIFICATION forming part of Letters Patent No. 307,145, dated October 28, 1884:.

.Application filed December 17, i883. (No modcln To all whom it may concern:

Beit known that I, HENRY 'I. RUSSELL, a citizen ofthe United States, residing in Chicago, in the county of Cook and State of Illinois, have invented a new and useful Improvement in the Art of Manufacturing (JX-Shoes, of which the f'ollowing is a specification.

An ox-shoe is pecuIiarly formed. It is wide The toe portion is curved laterally toward the opposite half of the hoof. The wide portions of the shoe are thick upon the outer side, and taper to athin'edge at the inner side. The

`outer edge is convex, the inner concave. The

most approved form of the shoe is provided with a wide calk around the heel, a narrow one at'the toe, and one or moreintermediate ones at the center. The difficulty in the forging by machinery of shoes of this character is in obtaining of a sufficient amount of stock in the extra thick portions of the shoe-as, for instance, in the various calks. This difficulty Willbereadily understood by those conversant with the art, and the only way heretofore known by which such a shoe could be machine-forged was by subjecting a large amount of metal, tobe operated upon in addition to the amount required by the shoe alone. This, however, is very undesirable, as it consumes stock ata rate ruinous to the profit of the business, leaving a thick fin surrounding the shoe at the end of the forging. By reason of this diculty in forging, manufacturers have resorted to casting the shoes of malleable iron,

which, however, produces an inferior shoe. To reduce the surplus metal to such a point as will render the manufacture of the shoes by machine-forging protable and practicable is the object of the present invention, and I accomplish it by first producing from the stock a blank so shaped as to present a large -amount of metal in those parts from which the calks and other thick portions of the shoe are to be formed, and a less amount in other parts from which the light portions of the shoe are made, and then subjecting such blank to the action of nishing-dies.

The invention further consists in the several steps or operations involved in the formation pf the shoe from bar metal, as hereinafter set orth.

a part of this specification, and in which simil-ar letters of reference indicate like parts th roughout the several gures, Figures 1 and 2 are respectively face views of the upper and lower die-plates. Figs. 3 and 4 are elevations of opposite sides of the die-plates as they appear when brought together. Fig. 5 is avertical section of the lower finishing-die upon the line 5 5 of Fig. 1. Fig. 6 is a partial vertical section upon the line 6 6 of Fig. 5, showing the removable. nail-hole forming portion of the die, a transverse section of which is given in Fig. 5. Figs. 7, 8, 9, and IO show the shoe in the various stages of its formation, Fig. 9 showing the upper and Fig. 10 the under side of the shoe.

In said drawings, A represents the lower plate, upon which the under part of the several sets of dies are formed; and B represents the upper or opposingplate,having'the upper dies. The latter plate is preferably attached -to or a part of a drop-hammer.

The shoes are preferably formed from bar iron or steel C, rectangular in cross-section, a portion of which, about half the length required for ashoe, is first placed edgewise between the dies A B and subjected to com` pression therein. This results in a narrowing and thickening of the part exposed, and isv illustrated at D, in Fig. 7. The next operation is designed 'to impart in great measure vthe rounded outer edge formation, andto bend -irregular face, the chief feature whereof is the convex projection b2, by which the toe is bent laterally to the body of the shoe. A cavity at b3 allows the accumulation of metal at the center near the location of the intermediate calks. The result of this operation is the for- In the accompanying drawings,which form mation of a blank, E, (illustrated in Fig. 8,) e

is used Nthe dies would only require obvious;

changes, and it may be that yboth operations can be combined, or the metal be rolled into the proper form. At the next operation not only is the outline of the shoe filled ont, but the wearingd'ace thereof is also completed ready for the shoer, with the necessary calks, nailgrooves` die. This is done by placing the blank 'flatwise over the deep side of the die A, (which has the shape ofthe under surface of the finished shoe,) andsubjecting it to` blows from the flat opposing surt'aee ot' the hammer-face B. Under the impact et' these blows the metal spreads out horizontally in all directions and enters every recess ot' the die, forming the complete shoe, and a substantially unil'orm fin, f, around its edge.

As the die A:i is intended to admit all the stock required by the shoe, the tin representsl the surplus metal operated upon, and to allow room for this surplus the face A is cut away around the die A5 toa slight extent, as shown at a. By the preliminary operations, the bulk of the stock having' been brought to the points where it is required to completely form the ealks and the thick parts el" the shoe by the finishing-die, it is easily spread out to the horizontal ydimensions and caused to fill every part ot'said die with only a thin film of surplus'metal. After being taken from the die A, the tin is removed by any suitable means, preferably by a punch having the outline oii the shoe. and which will punch it from out the surrounding fin.

I find it possible to perform all these operations successively and quickly with one heating of the stock, though I prefer to reheatjust before the finishing operation in the die A?, as it is :important that the stock possess a fair degree of ductility to ease the operation and avoid injury to the die. Other means for prolonging` the usefulness of said die may also be adopted, such as subjecting the blank to compression vin a die having the outlines of the shoe, and approximating its configuration in other respects just before it is placed in the die This, however, is a matter which may be left to the judgment of the manufacturer, as subjecting the blank after itis brought to the shape ot' Fig. 8 to a number of blows in die A3 will obviously bring about the same result, so far as the'shoe is concerned, as Would be obtained by rstsubjecting the blank to a p0rtion of the compression in an unfinished die ot' the kind mentioned.

It will be noticed that the projections on the parts s of said die A extend almost to the level of the top of the die-plate, leaving in the shoe only a thin and easily-punched Web at the points where the nails are to be driven. These parts 's are subjected to severe Wear by the action ot" the metal, chiefly dueto the forcing ot' it over said points toward the thin side ofthe shoe, and are often broken. This part ot` the die needs replacing more often, therei'ore, than the other parts; and hence I make it separate from the remainder, recessing the die to receive and support it, as illustrated in Figs.` 5 and G, so it may be readily removed and a duplicate be inserted in its place whenever required. If not made thus separate, the entire die would need replacing Whenever this single part was Worn out or broken.

I claim l. The die A, recessed to receive and support the removable portion s, in combination with the latter, substantially as and for the purpose specified.

2. The combination of dies A B with dies A Bl, the same being constructed substantially as shown, and adapted to produce the blank E.'

3. The combination of dies A B A2 B2 anc Ai* B, substantially as specified.' i

, HENRY T. RUSSELL. fitnessesz HM. IVIUNDAY, TAYLOR E. BROWN.

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