US445575A - Grate - Google Patents

Description

(No Model.) R. H. SMITH.

GRATE.

Patentedfeb. 3,1891.

FFIQEe REUBEN II. SMITH, OF RUSSELLVIIJLE, ARKANSAS.

GRATE.

SPECIFICATION forming part of Letters Patent No. 445,575, dated February 3, 1891. Application filed August 22, 1890. Serial No. 362,747- (No model.)

To all whom it may concern:

Be it known that I, REUBEN II. SMITH, a citizen of the United States, residing at Russellville, in the county of Pope and State of Arkansas, have invented a new and useful Grate, of which the following is a specification.

This invention has relation to grates; and the objects in view are to provide a grate so constructed as to obviate warping and to prevent the clogging of the air-spaces, and adapted to thoroughly consume any fuel that may be introduced therein.

/Vith the above general objects in view the invention consists in certain features of construction hereinafter specified, and particularly pointed out in the claim.

Referring to the drawings, Figure 1 is a perspective of the grate constructed in accordance with my invention. Fig. 2 is a transverse section on the line at a: of Fig. 1.

Like numerals of reference indicate like parts in all the figures of the drawings.

In practicing my invention I employ opp0- site end bars 1 and one or a series of intermediate similarly-disposed bars 2, located at suitable distances from each other and from the end bars. The opposite end bars 1 and intermediate cross-bars 2 are of V shape upon their upper edges when viewed in elevation, and consequently their under edges are converged toward their centers, or, in other words, are oppositely inclined from their ends to points near their centers. The under edges of the end bars 1 and also the intermediate cross-bars 2 are connected at their centers by a central longitudinal grate-bar 3, provided at intervals with transversel -disposed oblong openings 4. 7

At each side of the central grate-bar 3 the under edges of the bars 1 and 2 are provided with a series of offsets or steps 5 of uniform dimension and distances apart. The offsets or steps of the end bars agree or are longitudinally-opposite the offsets or steps of the intermediate bars, and each longitudinal series of offsets is occupied by a longitudinal grate-bar 6 of a thickness less than the distance between the olfsets, so that the longitudinal grate-bars aforesaid combine to form a series of shelves for the support of the fuel and at their outer edges air-spaces 7.

It will be noticed that the inner edge of burning coal, coke, straw, cobs, and in fact any kind of fuel or waste material, and this too in a most thorough manner, in that it is contained within the grate until entirely consumed.

By reason of the several compartments formed by the transverse intermediate bars 2 a fire may be made in any one, two, or three of them, so that a greater or less heat maybe generated either for heating or cooking purposes regardless of the aggregate size of the grate.

In practice the grate may be and is preferably integrally cast, although I do not limit my invention to such. Aside from the bars 2 separating the grate into a system of fuel-compartments, they also act as stays for the grate-bars and tend to decrease their liability to warp by excessive heat.

Having described my invention, what I claim is A grate comprising a series of intermediate and opposite end bars, each of which upon its under side is cutaway or inclined in an opposite direction at each side of its center, acentral bar having a series of perforations or openings connecting the series of bars at their centers, and a series of longitudinal grate-bars seated in the offsets and connecting the series of transverse bars, substantially as specified.

In testimony that I claim the foregoing as my own I have hereto affixed my signature in presence of two witnesses.

REUBEN II. SMITH.

Witnessel:

J. J. BULLOCK, A. F. BoLLINeER.

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