US470351A - Method of and means for making blanks for horseshoes - Google Patents

Description

(No Model.) 2 Sheets-Sheet I.

O. H. PERKINS. METHOD OF AND MEANS FOR-MAKING BLANKS FOR HORSBSHOES.

No. 470,351. v Patented'MaIyS, 1892 NITED STATES ATENT FFioE.

CHARLES HENRY PERKINS, OF PROVIDENCE, RHODE ISLAND, ASSIGNOR TO THE RHODE ISLAND PERKINS HORSE SHOE COMPANY, OF JERSEY CITY,

NEWV JERSEY.

' METHOD OF AND MEANS FOR MAKING BLANKS FOR HORSESHOES.

SPECIFICATION forming part of Letters Patent No. 470,351, dated March 8, 1892.

Application filed February 25, 1891. Serial No. 382,741. (No model To all whom it may concern.-

Be it known that I, CHARLES HENRY PER- KINS, of the city and county of Providence, in the State of Rhode Island, have invented a certain new and useful Method of and Means for Manufacturing Blanks for Horseshoes; and I do hereby declare that the following specification, taken in connection with the drawings furnished and forming a part of the same, is a clear, true, and complete description of my invention.

My said inventionrelates to the production of blanks which involve only a bending op eration for forming or shaping them into toe- 5 Weighted horseshoes, in which the metal is of uniform thickness, but is of much greater width at the toe than at the heels. In my application for Letters Patent, filed August 14, 1890, Serial No. 361,963, I disclosed a novel method of producing such blanks, which involved what I will term zigzag rolling operations for developing a multiple blank-bar embodying two or more lines of blanks side by side, but with the toe portion of each blank in either line opposite the heel portions of two adjacent blanks in the other line.

I have now devised what I believe to be another equally novel method, under which such blanks may be produced in a single line.

0 These single-line blank-bars were devised by me, and regardless of the method or process by which they may have been produced they constitute, in part, the subject of my applica tion for Letters Patent, filed October 1, 1890,

Serial No. 366,728. My said novel method,

when practiced with reference to securing the best results, consists, first, in rolling iron or steel into straight bars, which are thinner at one edge than at the other and substantially 0 equal to the thickness of the shoes desired and having a sectional area substantially equal to the average sectional area of the blank desired, and, secondly, rolling said bar edgewise and developing its thin edge into a series of reversed inclines, each equal to onehalf the length of each blank. In thus proceeding during the second step in this method or process one side of the blank may be I variably beveled, as is required for produc 5o ing light shoes of the most approved forms,

or the bevel may be slight and uniform, or, as'is required for producing heavy shoes, the blanks may be plain or free from beveled edges. The creasing of the blanks produced by this method cannot be accomplished during the rolling operation, as is done under my prior method, and while the creasing may be done upon the blanks after detachment from the bar it can be much more rapidly and economically accomplished while the blanks are kept in bar form, this operation con'stituting another stepviz., progressively developing the creases in each blank while still a part of the blank-bar and then separating them preparatory to the bending operation.

Referring to the drawings, Figure 1 illustrates in several views a toe-Weighted-horseshoe blank in its best form for producing comparatively light-Weight shoes. Fig. 2 illustrates in several views a blank as used for producingheavy toe-weighted shoes. Figs. 3 and 1 illustrate blank-bars embodying blanks of the form shown, respectively, in Figs. 1 and 2. Fig. 5 illustrates in front View a pair of rolls adapted to produce a-stock-bar in its best 7 5 form as well as in a simpler form. Fig. 6 in front view illustrates a pair of rolls adapted to develop the blank-bar, Fig. 3. Fig. 7 is a section of the pattern-roll, Fig. 6, on a line with its pass or groove. Fig. 8 illustrates in front view a similarpair of rolls having a differently-shaped groove adapted to produce the blank-bar, Fig. 4, the pass being shown at its greatest vertical dimension. Fig. 9 in several views illustrates a rolled stock-bar in its best form, the sectional views being provided with dotted lines, indicating the sections of the blank, Fig. 1, at the middle and end. Fig. -1O illustrates creasing-dies.

Referring to Fig. 1 it will be seen that the blank a is uniform in thickness and that it is much wider at the toe portion a than at the heel portions or ends a and also that from the middle to both ends one edge is reversely inclined. This inclined edge becomes the inner edge of a shoe whenbent into form, and it will also be seen that the tread side of the blank is variably beveled at the inclined edge, said bevel being quite fiat and wide at the central or toe portion and narrower and too more abrupt at the heel port-ions. Dotted lines lndicatethe blank as when bent to form a horseshoe.

The blank-bar A, Fig. 3, contains a series of the blanks a and it is developed from a straight stock-bar b, which is thinner at one edge than at the other, as illustrated in Fig. 9.- Sectional views of said .barare shown accompanied with excess of metal required at the other point.

The initial form of the stock-bar affords metal at the thick edge, which undergoes little, if any, change, and the thin edge is more readily changed into the beveled and reversely-inclined edge than when the bar is rectangular are shown at c and c.

"may be employed, if desired. 1 As'uitable in cross-section, although fairly good results will accrue ifa bar of the latteriform be used.

' The initial rolling is performed in the pat- .tern-rolls B B of Fig. 5, wherein fhWO passes The pass 0 develops a bar in rectangular cross-section and the pass 0' develops the preferred stock-bar b. The rolling of the blank-bar Ais performed in the pattern-rolls C C, Fig. 6. The roll 0 is provided with a* properly-cut groove d,

having the variable bevel at df and d and conforming in contour with the two sides and 'the reversely-inclined edge of the blank-bar A, and, as'here shown, the roll is provided Wllih af groove so cut that at each revolution two blanks will be rolled; but larger rolls guide is employed infront of these rolls; but

. as it is merely to secure the presentation of the stock-bar while standing on its edge it reemploy a receiving-platform back of the rolls quiresno illustration-1 It is also desirable to for obviating u'ndue' distortion of the blankbars when the metal is rolled at specially high heats, asis sometimes desirable. If the metal istworked at a specially soft heat, receivingguides may be profitably employed back of 4 the rolls for maintaining the'blank-bar in an edgewise position until it is delivered upon the platform, which may then embody a set of bed-rollers allgrooved in line with the pass between the working .rolls.

It is to be understood that the form of the stock-bar may be varied, as well as its I seeitional dimensions, with relation to the blank tobe rolled without departure from the main feature of .my invention.

The nail-head scores or creases 6 cannot be formed during the rolling operation; but the blanks may be separated from each other and placed in the creasing-dies D, Fig. 9. The bed-die f has preferably, a sunken face or matrix conforming to the outline of the blank, and it is of such size as will freely accommodate it, and the plunger or top die 9 has, essentially, the creasers g, and preferably in addition thereto a working surface conforming to the tread-surface and to the particular bevel desired in the blank, and the latter should be at such a heat as will enable the dies to operate as perfectly as possible. The plunger-die should be slowly actuated by rapidly-moving and powerful mechanism, including a balance-wheel weighted for securing proper impetus during the downward stroke of the die and for carrying out the compressing operation without liability of failure. In performing the creasing operation the most economic results will accrue by working blank-bars containing, say, three or four blanks, because of the greater facility involved in the progressive delivery ofblanks to the dieand their removal after creasing.

In forming the plain blank-bar A of Fig. 4,

which contains plain. blanks h, as in Fig. 3,

the stock-bar may be rectangular in crosssection, as when rolled in the pass a of the rolls, Fig. 5. These blanks and blank-bars having only the reversely-inclined edge without the bevel before described aredeveloped in the rolls 0 0 Fig. '8, the groove in the roll C being appropriately shaped. -suchiblanks are creased in dies like those described so far as relates to the creaser g and the creasing is performed in a like manner.

I am aware that pattern-rolls have been heretofore devised in various-form's for the production of connected series of blanks for many purposes but so far as I know I amithe first to devise rolls capable of rolling abar of metal edgewise into horseshoe blanks of any kind, as well as the first to devise rollscapable of developing the variably-inclined edge contour essential in :blanks suitable for. use in the manufacture of toe-weighted. horseshoes, and whether beveled, or variably beveled, or plain.

Having thus described vmyinvention, I claim as new and desire to secure by Letters 7 Patent- 1. The method or process of forming blankbars containing toe -.weighted -v horseshoe blanks, which consists in edgewise-rolling a stock-bar and developing it into a single line of connected blanks, each-uniform in-thickness and with one edge thereof reversel'y inclined in the length of eachblank andthen appropriately creasing the blanks.

2. The method or process of forming blankbars containing toe weighted -"horseshoe blanks, which consists in edgewiseeroll'ing a straight stock-bar thicker at one edgeithan at the other, and then rolling saidbar 'bymeans of pattern-rolls into a. connected=series of blanks uniform in thickness and each. reversely inclined at one edgefrom the middle thereof toward its ends.

3. The method or process of 'formingblankbars containing toe weighted horseshoe blanks, which consists in edgewise-iolling a straight stock-bar of appropriate sectional dimensions, substantially equal to the average sectional dimensions of the particular blank desired, and then rolling said bar by means of pattern-r01 is which will develop a connected line of blanks uniform in thickness and each reversely inclined at one edge from the middie toward its ends.

4. The pattern-roll for rolling toe-weightedhorseshoe blanks and provided with a groove affording a pass, substantially as hereinbefore described, said groove having variably beveled sides and adapted to converta straight stock-bar of metal into a series of connected

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