US276876A - Furnace-grate - Google Patents

Description

` UNITED STATES PATENT GEEICE.

JOHN A. PRICE, OF SCRANTON, PENNSYLVANIA.

FURNAC E-GRATE.

SPECIFICATION forming part of Letters Patent No. 276,876, dated May 1*, 188e. Application filed February 5114, 1883. (No model.)

1 erence being had to the accompanying drawranged for operation in pairs.

am so ings, forming part of this specification, and to the figures and letters` of reference `marked thereon. a

This invention relates to that class of furnace-grates in which a numberof separate rocking sections serve normally to support the tire,

and operate when rocked to agitate the fire and cause the clinkers and ashes to be withdrawn therefrom and dumped into the ash-pit below; and it consists in the novel construction and combinations of parts, which I will iirst describe, and then point out particularly in the claims at the end of this specification. t

Referring to theaccompanying drawings, Figure 1 represents a bottom plan view of a furnace-grate constructed in accordance with my invention, the various sections being ar- Fig.2 is a longitudinal section of the same, taken on the line wxof Fig. 1. Fig. 3 is a longitudinal sectional view of a modification in which the sections are arranged for simultaneous operation in the same direction. Fig. 4 is a similar view ofanother moditication, and Fig. 5 a viewofa modified form of grate-bar; Fig. 6, a view showing gearing which may be employed `to rock the sections, and Fig. 7 a view showing the manner of connecting the removable lire-bars.

Similar letters of reference in the several figures denote the same parts.

A indicates the frame of the grate, and B B the several rocking sections arranged therein. Each rocking section B Aconsists ot' a cross-bar, b, bearing a number of V^shaped bars, c, arranged in planes at right angles to the bar b, and connected to said bar b by interlocking notches or recesses -r s in the respect-ive bars, as in Fig. 7, so as to be removable, and theend bars, b', ofthe sections are provided with journals d, having bearings within the frameA, as shown. From this construction ot' the sections it will be seen that the fuel in the furnace is supported entirely by the bars c and away fromthe cross-bars b, and that therefore the said bars b are prevented from extreme heat, andl the tendencyof them to warp is greatly diminished. As shown in Figs. l and 2, the several sections are connected alternately to two rods, F F, arranged on opposite sides of the grate, and given reciprocating motion alternately in opposite directions by means ot'a vibrating T-shaped lever, G. When the lever 6o G is turned in one direction, the sections are rocked and the edges e ot each section, as they rise, cut'into the material above and loosen it, and carry it into the pockets between the adjoining sections, of which the depending crossbars b of said sections form a part. Then upon the reverse movement of the lever the material in the pockets is discharged, this operation being repeated each time the lever G is vibrated. 7o

To insure closeness of the pockets and prevent wastage where fine fuel is employed, a plate, h, extending out laterally oneach side of eachV of the bars b, preferably at substantially right angles thereto, is formed upon or attached to said bars. These plates are preferably7 made of grated or comb form, as shown in Fig. 1.

The several sections ofthe grate may be so connected as to be capable of simultaneous vi- 8o bration in the same direction-as, for instance, by means ot' a rod, D, connected to the crossbar b of each section and operated by a lever,

E, as shown in Fig. 3. In this instance, also, the plates projectin g laterally from the bot- 8 5 toms of the crossbars serve to form part of the pockets between the several sections.

It will be observed that in Figs. 1, 2, and 3 the bars c of one section are of V^ form., while the barsic of the next adjoining section are of 9o ^V form, and so on throughout the series, the bars of the alternate sections being of the same form. This arrangement, though it is desirable when the sections are arranged to be operated in pairs, need not be followed where all 9 5 the sections are adapted to be rocked together in the same direction; butin the latter case the bars c of all the sections may be Vf shaped, as shown in Fig. 4.

Instead of forming thejournals for the secroo tions upon the end bars, c, they may be formed upon the cross-bars b, near the lower edges, as shown in Fig. 5.

It is obvious that instead of giving motion to the several sections bymeans of connectingrods, as shown, the journals of the sections may be extended through the frame and provided with gears meshing into one another, so that when one section is rocked all will be rocked. Fig. 6 shows gears such as may be employed for this purpose.

My improvements are applicable to stoves as well as to furnaces.

The form of the bars c, I do not claim herein, broadly, as the same is made the sub- `ject of claims inLetters Patent ot' the United States granted to William McGlave and J. A. Price, April 16, 1878.

Grates constructed in accordance with my invention are very effective, inasmuch as they operate to rake and disturb the ire over its entire area, effectively eliminating all cinders and ashes therefrom, and maintaininga proper zo draft.

Having thus described my invention, I claim as new--A 1. The grate-sections having cross-bars, the hre-supporting bars, and the plate projecting laterally from the bottom of the cross bars, substantially as described.

2. The combination,wth the rocking bars, each consisting of the v^shaped fire-support ing bars, the depending cross-bars, a-nd the plates on the cross-bars, ofl means, substantially as described, for operating the sections in pairs, substantially as described.

3. The combination, with the rocking bar, of the V^shaped tire-supporting bars,'each removably connected to the rocking bar, substantially in the manner described.

JOHN A. PRICE.

Witnesses:

FRED F. CHURCH, A. S. STEUART.

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