US222417A - Improvement in the manufacture of horseshoe-nails - Google Patents

Description

W. W. MINER. Manufacture of Horseshoe-Nails.

No. 222,417. Patented Dec. 9, 1879.

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WILLIAM w. MINER, or BOSTON, MASSACHUSETTS.

l'MPROVElVlENT lN-THE MANUFACTURE OF HORSESHO E -NAILS.

Specification forming part of Letters Patent N 0. 222.417, dated December 9, 1879; application filed April 9, 1879. a

To all whom it may concern:

Be it known that I, WM. W.MINER, of Boshave invented an Improvement in Manufacture of Animal-Shoe Nails, of which the following description, in connection with the accompanying drawings, is a specification.

This invention relates to an improvement in the art or method of manufacturing animalshoe nails, as hereindescribed, to enable a considerable portion of the metal heretofore wasted to be saved.

In the manufacture of animal-shoe nails from rolled ribbed plates of metal, as now commonly practiced, a considerable portion of the metal between the adjacent blanks pnnched from the ribbed plates is lost or wasted. The object of this invention is to obviate very much of this usual waste, which amounts toten or twelve per cent. of the stock.

I have discovered that the principal portion of this usual waste may be utilized, provided one-half of the nail-blanks cut from the plate have their heads made longer, and consequently larger, than the blanks cut from the opposite side of the said plate, the larger blanks so out just at and below the under sides of their heads being permitted to con-.

tain much of the waste metal heretofore commonly lost in forming the round toes of the smaller blanks next thehead of the larger blanks. The larger blanksv have square toes,

and are longer from end to endthan the smaller round-toed blanks, and the said larger blanks, when subsequently cold-rolled and finished,

- serve to make nails of a size larger than the nails produced by a like method of rolling from the smaller blanks.

The invention therefore relates, essentially, to that improvement in the .art of cutting blanks for animal-shoe nails which involves the cutting of the series of blanks from one edge of the metal plate withlonger heads than that series of blanks cut from the opposite,

edge of the said plate, theblanks with longer heads and called the larger blanks, because they are to produce larger nails than theother series of blanks, also being so cut out as to retain at the lower portion of their heads a part of the metal heretofore commonly wasted when the heads of the larger blanks. ton, county of Suffolk, State of Massachusetts, 4

cutting the round-toed or smaller blanksfrom Figure 1 of the drawings represents, in top view, a piece of rolled ribbed nail-plate, marked upon its concaved face to designate the lines 1 upon which the said plate will be punched or' i cut to produce blanks of different length and of different width or area in cross-section at or near their heads, it also showing allfthe waste which will be produced by this improved method. Fig. 2 is a cross-section of thenailplate, and Fig. 3 a plan view, showing the 7 plate by this my method, will be like those commonlye'mployed for such purposefone punch cutting blanks from one edge of the plate at a distance in advance of the other punch corresponding with the width of one,

two, or more nails, the distance ,of two nails being preferred.

In the ordinary way, as shown in Fig. 3, the blanks a b punched from the plate areof uniform size at the heads, and each nail is of equal width or cross-section through its shankor body near the head. Cutting the said blanks of equal widths or cross-section, as commonly done, wastes an amount of stock substantially as shown at c and at 0.

By experimenting, I have discovered that muchof this waste 0 0 may be saved and left in one of the series of blanks cut from one edge of the plate, thereby making that series of blanks suitable to make nails of a size larger than can be made from the other series of shape of the usual dies and punches, thrown much of the waste heretofore common, and as shown at c, Fig. 3, into the blank 0, where its head and body join, thereby making thehead of the blank e longer, and consequently larger at that part of the said blank where the head and' body join, wider or of greater cross-section at points equidistant from the edges of the plate from which the said blanks e are out than are the smaller blanks cut from the opposite edge of the same plate. This is delineated clearly in Fig. 1, where x denotes the waste between the heads of the larger blanks c and the points of the blanks d, and wherein m represents the waste between the ends of blanks e and the heads of blanks d. Referring to the said Fig. 1, it will be noticed that the larger blanks, 0, having the longer heads and cut from one edge of the plate, are also wider or of greater area in cross-section on the line y 3 than are the blanks d d on the line .10 x, which line is made at the same distance from the outer ends of the heads of blanks d as the lipe y 3 is from the outer ends of the heads of the blanks e e. The larger blanks e 0 may be used to make nails of the next larger size.

In punching out the blanks from the plates, the end 12 of the plate being first presented to the punches, the first descent of the punch will out out the blank No. 1, the next descent the blank No. 2, and the third descent will cut out two blanks, No. 3, and thereafter, until reaching the end of the plate, two blanks will be out simultaneously. When the punch which cuts out the blanks e descends it leaves as waste only small portions .20 and .1. (See Fig. 1.)

he larger blanks, 0, will, preferably, be rolled between die-rollers, which first operate upon their edges, to thereby somewhat elongate the blanks and straighten or square their edges, and then the blanks will pass, as usual, to the rollers of a machine substantially such as represented in United States Letters Patent No. 121,511, where the said blanks will be cold-rolled, beveled at the point, and sheared in the usual way to finish the points.

It is obvious, however, that the method by which the blank is finished to make a nail, and the machinery employed, may be varied without departing from my invention, and any other well-known machinery may be employed instead of that shown in Patent No. 121,511.

Prior to this my invention I am not aware that animal-shoe-nail blanks or nails, or blanks for any other kind of nail, have ever been cut from opposite edges of the same plate, so as to produce blanks or nails of difl'erent widths or cross-section or area, as set forth.

It will be noticed that the under sides of the heads of the blanks for the larger nails are not as much concaved as the heads of the smaller blanks, d. This difference in shape is caused by difference in the shape of the cutters, which are so formed as to leave most of the waste metal represented at c, Fig. 3, in the nail-blank c, as designated in Fig. 1.

I claim That improvement in the art of cutting blanks for animal-shoe nails from a rolled double -ribbed plate which involves cutting two different-sized blanks from opposite edges of the same plate, the larger series of blanks having longer heads than those of the series of blanks cut from theopposite edge of the same plate, the larger blanks being less concaved where their heads and bodies join than are the smaller blanks, the two sizes of blanks out from opposite edges of the plate serving for nails of two different sizes, and avoiding much waste of metal.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

WILLIAM W. MINER.

Witnesses G. W. GREGORY, N. E. WHITNEY.

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