US1209334A - Grate. - Google Patents

Description

J. W. REYNOLDS.

GRATE.

APPUCATION FILED SEPT. 14. I915.

1,209,334. Patented Dec.19,1916.

Witnesses J72? 77m :Zd

enter JOHN W. REYNOLDS, 0F MOUNT JEWETT, PENNSYLVANIA.

GBATE.

Specification of Letters Patent.

Patented Dec. 19,1916.

Application filed September 14, 1915. Serial No. 50,677.

To all whom it may concern:

Be it known that 1, JOHN W. REYNOLDS, a citizen of the United States, residing at Mount Jewett, in the county of McKean and State of Pennsylvania, have invented a new and useful Grate, of which the following is a specification.

This invention relates to grates for use in furnaces and the like, one of the objects of the invention being tojprovide a tiltable bar having means whereby the fuel is prevented from resting directly thereon but, instead, an airspace is formed along the top of the bar, thus preventing said bar from expanding and contracting to an objectionable extent while the grate is inuse.

A further object is to provide abarhaving a novel arrangement of Wings or fingers whereby, when the bar is tilted or shaken,

said fingers will cut and loosen the ashes supported thereby, thus readily clearing the grate.

Another object is to provide means where ferred forms of the invention have been shown.

In said drawings, Figure 1 is a plan view of a portion of a grate embodying the present improvements, parts being broken away. Fig. 2 is a section on line AB Fig. 1. Fig. 3 is a side elevation, on a reduced scale, of one of the bars of the grate. Fig. 4 is an enlarged transverse section through a modified grate. Fig. 5 is a plan view of a portion of the modified form of grate.

Referring to the figures by characters of reference 1 designates a portion of a sidewall and 2 a portion of an end wall supporting the grate constituting the present invention. The wall 2 has slots or incisions 3 extending downwardly thereinto whereby contraction and expansion of said wall can be effected without causing buckling.

The wall 1 constitutes a bearing for one end of each of the grate bars. Each bar, indicated at 4, is preferablyformed with flat faces and has an ear 5 extending downwardly therefrom and provided with a laterally extending pin 6 for connection with a strip 7. This strip 7 is connected to all of the grate bars and by shifting it longitudinally, the said bars A will be caused to move together. Each bar 4: has trunnions 8 at its ends which bear upon the walls 1, these trunnions being extended from cars 9 projecting upwardly from the ends of the bar. Extending from the sides of each bar 4:

are substantially triangular wings or fingers 10 which project upwardly beyond and over hang the top of the bar. The wings or fingers 10 at the two sides of the bar may be dis posed in staggered relation as shown in Figs. 1, 2 and 3 and those sides ofthe wings or fingers overhanging each bar are preferably undercut, as shown at 11, thus to produce a shearing edge 12. By having the wings or fingers arranged in staggered relation, a continuous but tortuous air space 13 is provided along the top of the bar 4 so that overheating of the bar by the burning fuel supported thereby is prevented. As the bars are all of like construction it will be obvious that the wings on each bar will project between the wings on the corresponding bar. Furthermore wings or fingers 14L similar to those on the bars are extended inwardly from the walls 2. As all of the wings or fingers 10 and 14 have fiat upper faces, it will be obvious that when the bars are in their normal position, they will form a surface capable of supporting small fuel. When the bars are actuated by means of strip 7, the various wings or fingers carried thereby will swing upwardly and downwardly, the edges 12 shearing ofi portions of the ashes resting on the grate these shearing edges 12 cooperating with the ends of the wings or fingers 10 on the next adjoining bar in order to effect this shearing result.

Instead of having the wings or fingers disposed in staggered relation, they can be directly opposed, as shown in Fig. 5, in which event a straight continuous air passage 15 will be provided above each bar instead of a tortuous passage.

It has been found that by providing a grate utilizing bars such as described, the bars will not become overheated to such an extent as to warp or melt. Furthermore by having the fingers coiiperating as described and by utilizing the shearing edges or noses 12, the ashes can. be more readily cleared from the grate than heretofore.

What is claimed is 1. A grate including bars mounted for simultaneous rocking movement, and fingers integral with each bar and extending in op posite directions therefrom, to form oppositely extending series, each series of fingers on one bar being adapted to work between one of the series of fingers on the next adjoining bar, the fingers of each series being located entirely beyond one side of their bar and having their upper end portions extending partly over the bar, there being an air space along the top of the bar and past all of the fingers thereon.

2. A grate bar including oppositely extending series of fingers, each finger being substantially triangular in elevation and projecting upwardly beyond the bar, that portion of each finger above the bar being inclined upwardly from'the bar to the top of the finger to overhang the bar and provide an air space between the bar and the overhanging portion, the upper edge of said overhanging portion constituting a shearing edge, the fingers of the two series extending in opposite directions from the bar.

3. A grate bar including oppositely eX- tending series of fingers, each finger being substantially triangular in elevation and projecting upwardly beyond the bar, that portion of each finger above the bar being inclined upwardly from the bar to the top of the finger to overhang the bar and provide an air space between the bar and'the overhanging portion, the upper edge of said overhanging portion constituting a shearing edge, the fingers of the two series extending in opposite directions from the bar, all of the fingers being disposed in staggered relation with the overhanging por tions of one series interposed between the overhanging portions of the opposed series.

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

JOHN W. REYNOLDS.

\Vitnesses:

GEORGE BURNS, C. L. PAULSON.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. G.

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