US807159A - Furnace-grate. - Google Patents

Description

No. 807,159. PATENTBD DEC. 12, 1905.,

' G. A. ELLIS.

FURNACE GRATB.

APPLICATION FILED FEB. 27. 1905.

wi/tmowzv 9. aw/1M4. y $472M mg g UNITED STATES PATENT OFFICE.

GEORGE A. ELLIS, OF MOUNT VERNON, NEW YORK.

FURNACE-GRATE.

Specification of Letters Patent.

Patented Dec. 12, 1905.

Application filed February 27, 1905. Serial No. 247,434.

To all whom it may concern.-

of which the following, taken in connection with the accompanying drawings, is a full, clear, and exact specification sufficient to enable others skilled in the art to make and use the same.

My present invention has relation to grates such as are employed in furnaces and other fuel-burning structures for the support of the fuel and chiefly to that variety of grates known as pocketing and cutting off grates; but, as will be apparent from the following explanations, the improvements might be adopted in connection with grates of other varieties.

The principal object of my invention is to provide or produce a simple, cheap, and efii cient grate made up of independent sections applied on a supporting-bar and wherein any of the sections may be easily removed from the supporting-bar without disturbing the remaining sections, wherein the'union between the sections and their supporting-bar is-substantial and durable, and wherein the bar may be made of any desired length without de tracting from its necessary stability and the security of the independent sections thereon.

To accomplish all of the foregoing objects and to secure other and further advantages in thematters of construction, operation, and use, my improvements involve-certain novel and useful peculiarities of construction and relative arrangements or combinations of parts, as will be herein first fully described and then pointed out in the claims.

In the accompanying drawings, forming part of this specification, Figure 1 is a view in elevation, showing a supporting-bar with two grate-sections mounted in place thereon in accordance with my invention. Fig. 2 is a view, partly in cross-section and partly in elevation.

In both the figures like letters of reference wherever they occur indicate corresponding parts.

Arepresents the supporting-bar, which may be of any length and of any desired size. This bar is preferably made of cast metal and in a single piece, being provided with slots or perforations, as at a a, to permit the passage through them of the locking projections, with which the separate sections are supplied, and prrvided also with a trunnion ateach end, as at t B B represent the separate grate-bar sections, which are intended to be mounted upon and sustained by the supporting-bar A. In the particular form shown each of these sections has a central vertical webwhich sustains the leaf or the upper portion of the section on which the fuel rests, and this leaf is preferably made in part of a series of projections, as at 0 0, spaces being left between them for the passage of air. Each section is fash- -ioned to fit upon the bar A and is provided with a tongue or projection C to enter and pass through the perforation a and supplied with some suitable means for locking the tongue, and thereby locking the section in place upon the bar.

The upper portion of the bar is rounded and enlarged on one side, as at d, so as to project slightly beyond the adjacent vertical face of the bar, while the opposite face of the bar is made practically tangent with thecurve of the rounded portion, substantially as indicated in Fig. 2. That the sections may have a firm bearing upon the top of the bar they are eachsupplied on each side with a flange or projection e, which serves also to contribute strength to the sections. These flanges or projecting portions extend around the parts which bear against the bar A, and they may be continued up along the rear edge of the web, as

indicated, if so desired. The bar A is somewhat enlarged at the lower part to contribute the desired strength and stability, and it is provided with a ledge, as at f, on' which the lower portion of the sections may abut.

The throats of the webs fit over the top of the supporting-bar and against one of the vertical faces, substantially as indicated, and when in place and properly locked the separate sections move with the supporting-bar A.

To mount the sections in place upon the bar, they are first tipped or canted, as indicated by the dotted lines in Fig. 2, and when they are turned back on the top of the bar to their proper final location the tongues C pass through the openings a, and then the sections are secured against up and down movements, as will be readily understood. To lock the sections in place, I employ any suitable means of locking the tongues. The simplest means are probably the cotter-pins, (indicated at g 9,) which are passed through perforations in the tongues and then slightly bent. These may be easily displaced whenever it is required to remove one or more of the separate sections. Any other suitable means of accomplishing the locking may be adopted. When the keys or the locking means are in place, the sections will be held against sidewise movements on the bar.

When the grate-bars are used for cutting off a portion of the fire-bed, they should be amply strong to withstand the effect of the required work, and by employing the ledge, as at f, the improved bar may be subjected to the severest work without danger of damage.

For rocking the bar the coupling-bar or the operatingbar, of whatever character it may be, may be connected with the supportingbar, which latter is supplied with a suitable projection, as at h, and this projection may be located at any desired point of the supporting-bar. It usually extends down from the supporting-bar and is ordinarily cast therewith; but this is not essential.

In removing any one of the sections it is not necessary to disturb any of'the others, and the removed sections may be replaced while the supporting-bar is in position for use.

Whenthe section is canted or tipped on the supporting-bar, the edge of the throat moves on the swelled portion (Z until it strikes the what I claim as new herein, and desire to secure by Letters Patent. is

1. In a grate, the combination with the supporting-bar having the perforations through it and a top extended on one side beyond the face of the bar, of the separate sections adapted to fit and be turned upon the extended top and provided with tongues arranged to pass through the perforations in the supportingbar, and means for locking the tongues within said perforations.

2. In a grate, the herein-described grate-bar composed of the supporting-bar having the rounded top extended on one side thereof and the peiforations below said top, the separate sections having tongues for entering the perforations, and means for locking the tongues in place, the sections being adapted to fit and he turned on the bar, substantially as and for the purposes set forth.

3. In a grate, the combination of the separate sections and the supporting-bar, the sections being fitted to turn upon the top of the bar and being provided with tongues, and the supporting-barhavingarounded top extended on one side thereof and being perforated and supplied with a ledge against which the separate sections abut, the tongues passing through the perforations, the parts being constructed and arranged substantially as and for the purposes set' forth.

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

' GEORGE A. ELLIS.

Witnesses:

(J. SEDewIcK, WORTH Oseoon.

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