US548430A - Cattle-guard - Google Patents

Description

(No Model.)

A. G. BAILEY.

GATTLE GUARD. No. 548,430. Patented Oct. 22, 1895.

MIMI* IIIMIAH. MUTWUTNQWASMNSYDI. l5

UNITED STATES PATENT Enten.

ASA G. DAILEY, OF DETROIT, MICHIGAN.

CATTLE-GUARD.

PECLFICATION forming part of Letters Patent No. 548,430, dated October 22, 1895.

Application tiled February 7, 1895. Serial No. 537,590. (No model.)

To @ZZ whom it may concern.-

Be it known that l, Asn G. DAILEY, a citi- Zen of the United States, residing at Detroit, in the county of Wayne and State ot' Michigan, have invented certain new and useful Improvements in Cattle-Guards, of which the following is a specification, reference being had therein to the accompanying drawings.

The invention relates to the construction of a sheet-metal cattle-guard havingteeth struck up from the body thereof in such a manner as to provide a substantially even distribution ot' the teeth and leave a web of substantially even strength at all parts, all as more fully hereinafter described.

The invention consists in the peculiar construction of a metallic surface-guard composed of metal plates apertured by punches or dies and the metal forced upward in such manner as to produce the greatest number of projections from a given plate, at the same time producing a uniform spacing between the apertures.

In the present state of the art cattle-guards have been manufactured in sections, each section being a single sheet-metal plate having struck from the body thereof points or fins, these points or tins being made in many difterent forms. The arrangement of these apertures, however, has not been such as to arrangethe pointssufciently near togetherand oi'sufcient height to destroy the footing of animals. The spacing between the points in such prior construction has not been uniform, the result of which is to produce a guard which is abnormally weak at points and having unnecessai-y strength at others, thus not utilizing the metal to advantage. In my device Iovercome these objectionable features by forming triangular apertures in the guard,so arranged in relation to each other that a maximum number of points can be struck up in a given plate and a uniform spacing or web between the apertures produced, which greatly increases the strength and life of a guard.

In the drawings, Figure l is a perspective view of a portion of one section of a guard of my invention, in which the teeth or points are in the form of isosceles triangles. Fig. 2 is a top pian view of the same. Fig. 3, isaperspective vieu7 of the guard, showing the teeth in the form of equilateral triangles. Fig. 4 is a top plan view thereof, and Fig. 5 is a vertical section at right angles to the line of track. Fig. 6 is a plan view showing another arrangement. Fig. 7 is a side elevation of a portion of the section shown in Fig, l.

A represents the metal plates, from one of Vwhich I form each section of my cattle-guard.

From each plate I strike up teeth or points B at substantially right angles to the plate, leaving the perforations G in the body of the plate. I preferably arrange these teeth as shown in Fig. l, shaped as isosceles triangles arranged in transverse rows, the alternate teeth of each row being oppositely arrangedthat is, the rst tooth of thefirst row D having its base adjoining the end of the plate, While the next tooth E has its base in the second row diagonally opposite the base of the drst tooth and parallel thereto, as plainly shown in Fig. 1, the teeth being struck up to stand upon the base of each triangle.

The teeth are separated laterally by the strip F, and the rows of teeth are separated bythe transverse strips G', the strips F and G forming an even web over the entire structure, which supports the teeth. These teeth thus arranged would be arranged in rows in line with the base of the teeth. To eliect a perfectly even arrangement of the teeth, I bend the teeth slightly from the perpendicular, as shown in Fig. 7, so as to space the teeth equally at all parts of the plate.

I may change the form to that shown in Fig. 4, in which the teeth are shaped as equilateral triangles arranged in rows H I, the teeth in the row H being struck up on the base o, while those in row I are struck up on base b. This effects a more even distribution of the points without bending and leaves the same web as in the construction previously referred to.

In Fig. 6 I have shown two teeth struck up together or in pairs, with the strip F between the pairs instead of between each single tooth.

What I claim as my invention is l. A cattle guard section formed of a sheet of metal, having pointed teeth alternately struck up in dierent directions and in rows,

to leave the tooth spacing strip F and the row spacing strips G of substantially uniform width. v

2. In a cattle guard section formed cfa sheet IOO of metal triangular teeth alternately struck of the teeth, the teeth being bent to be sepa- [o up therefrom in different directions and in rated substantially equal distances. rows, and a web of substantially uniform In testimony whereof I afx my signature Width left between the teeth and between the in presence of two Witnesses.

5 rows, substantially as described.

3. A cattle guard section formed of sheet ASA G. DAILEY. metal triangular teeth struck up therefrom in XVitn esses: separated rows, the apertures thus formed be- M. B. ODOGHERTY,

ing alternately on opposite sides of the base L. J. WHITTEMORE.

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