US329224A - Fire-place - Google Patents

Description

(No'Mdel.) 3 Sheets- Sheet 1.

G." E. SHARPB.

PIRE PLACE. No. 329,224. Patented Oct. 27, 1885.

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3 sheets-sheet 2.

G. E. SHARPE.

(No Model.)

PIRE PLAGE.

Patented Oct. 27, 1885.

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GEORGE E. SHARPE, OF STEUBENVILLE, OHIO.`

FIRE-PLACE.

SPECIFICATION forming part of Letters Patent No. 329,224, dated October 27, 1885,

Application filed June 18, 1884.

To a/ZZ whom it may concern.-

Beit known that I, GEORGE E. SHAEPE, a citizen of the United States, residing at Steubenville, in the county of Jefferson and State of Ohio, have invented certain new andy useful Improvements in Gas and Smoke Consuming Open Fire-Places, of which the following is a specification, reference being made to the accompanying drawings, in which- Figure lis a front elevation of my improved gas and smoke consuming open nre-place. Fig. 2 is a vertical section of the same online :n :v of Fig. l. Fig. 3 is a rear perspective view of the improved open fireplace complete. .Fig 4 isa perspective view of the rear shell detached. Fig. 5 is a rear perspective view of the open lire-place with the rear shell removed. Fig. 6 is a vertical section on the line y y of Figs. 2 and 3.

The object of my invention is to distribute and retard the gases and smoke arising from the combustion of fuel and to hold them under the action of the fire, so that they will be consumed, and also to mingle with the gases and smoke a supply of hot air in the presence of the iire for the purpose of promoting'their combustion.

My invention consists in a novel construction and combination of devices, which may bereadily understood from the following particular description, in connection with the accompanying drawings.

Referring to the drawings, the letter A indicates a main shell, which may be made of any suitable refractory material, preferably cast or wrought iron. The rear portion of its top wall is inclined, as shown at a, and extends from the back Wall forward to the l.rear wall, b of an elevated or dome-like portion ofthe casing, which has aline-opening, b', extending from side to side. The 'main shell sits upon a hollow base, C, the top wall, c, of which forms a hearth-plate, under which air may pass through openings d in the front wall of the hollow base. Partially embracing the rear portion of the main shell,and permanently attached thereto, is a casing, E, (see Figs. 2 and 5,) having an inclined top Wall, e, rear wall, e', and end walls, e2 e2, standing at o alittle distance from the walls of the main Serial N0.135,348. (No model.)

shell, so as to leave an intervening fluespace, which is closed at bottom and in front, but o pen at top, and communicates with the inte- -rior of the mai-n shell by openings f in the walls of the latter. Embracing the entire rear portion of the main shell, and covering-"the casing E,is a rear shell, G, having a rear wall, g, inclined top wall, g', lextending from the wall g to the rear wall, b, of the dome, (and preferably lapping the ends of the dome, as at g2 g) and end walls, as at g3. There is a Hue-space between the walls of this rear shell and the main shell, and the casing-E and Vthe space below the hearth-plate c communi- Gates with this fine-space by means of openings d in said hearth-plate. rIhe under surface of the top wall, a, of the main shell has a lining, H, of {ire-brick (or any other suitable refractory material) lying directly over the grate or Ere-chamber, and pro- (See Figs. 2 and 6;) l

vided with wide downwardprojections or.

teeth h, arranged in rows, so that the teeth of each row stand opposite the spaces between teeth of adjacent rows, and thus break up the surface of the lining into obstructed passages,

through which the flow of gases and smoke is retarded,and thus subjected for alonger period to the action of the iire than if allowed to pass freely to the opening b. From the ends of the top lining, H,side linings, I, extend downward, and have'their rearwardly and upwardly inclined lower edges resting upon oblique shelves k k, which project inwardly beyond said side linings,and have their inner edges bent downward to take over and support the lower side linings, L L, of the iirechamber, the lower edges of which rest upon shelves m m. These side linings of the fire-chamber stand out from the side walls of the main shell, and are kept at a proper distance therefrom' by studs a a, projecting from said walls'. The rear edges of the side linings join with a back lining, L', which rests upon a rear shelf, m', and stands at a proper distance from the rear wall, a', of the main shell to leave a flue space. Its rear surface abuts against studs n a', projecting from the shell, and its upper edge reaches snugly up to a rear horizontal shelf, k', which joins with the oblique side shelves, la k. At the tops of both the side linings and IOO back linings of the fire-chamber are openings Z, forming communicating passages between the top of the lire-chamber and the flue-spaces behind the linings. In the shelves m m and m', which support the re-chamber linings, are openings q, allowing communication between the space under the lire-chamber and the spaces behind the linings. A short distance above the fire-chamber is a flatwise horizontal deectingplate, P, the ends of which rest upon suitable ledges projecting from the upper side linings, I I. The purpose of this plate is to detleet the products of combustion in a direction to strike the top lining, H, so that the smoke and gases will be distributed and retarded so as to be subjected to the heat of the {ire-chamber and consumed instead of passing directly upward and 0E to the chimney through the opening b. The grate-bottom R, basket S, and ash-pit screen T may be of any suitable or well-known construction and supported in any desired manner, and as they form no part of my improvement they need not be particularly described.

lThe operation of my improved smoke and gas consuming open fire-place is as follows: When a fire has been started in the iirechamber, the products of combustion which arise therefrom-that is, the smoke and gasesare detlected by the plate P in the direction of the arrow No. l, and pass among the teeth h toward the opening b. A draft is thus started, which causes cold air to enter through the openings d and to pass under the hearthplate c in the direction of the arrows No. 2, and thence up through the openings d and between the casing E and the rear shell. At the top of the casing E it turns and passes downward between said casing and the main shell to the openingsf, where it divides, aportion` going downward through the openings g to the ash pit or space under the nre-chamber, and the other portion' rising and passing through the openings Zinto the top of the lirechamber. In its passage through these flues the air becomes heated, andjoining with the gases escaping from the lire promotes their combustion. The air will only pass down under the fire-chamber in. the direction of arrows No.` 3 when the usual register in the ash-pit screen4 is closed, which will usually be done after the fire is well started. Ihave found in practice that by causing the heated airto be mingled with the smoke and gases rising from the fuel and retarding and dispersing these gases,smoke, and hot air by means of the teeth h the gases and smoke are very efficiently consumed.

I am aware that a cooking-stove has had the direct back wall of its ireehamber provided with teeth to hold the fuel off from the wallplate and protect said plate from rapidburning away, and I lay no claim to astove so constructed. The overhanging toothed lining in my lire-place has quite a different function 6 from the said toothed back wall, in that the teeth of my lining intercept and retard the gases and smoke after they have escaped from the fuel-bed and promote their combustion in the formv of llame.

Having now described my invention and explained its operation, what I claim isl. The combination, with the main shell provided with a fire-chamber and elevated hearth-plate having openings to admit air beneath, of the rear shell and the intermediate casing, E, open at top and closed at bottom, suitable openings being provided to permit'ar to rise from below the hearth-plate into the space between the main and rear shells and to pass from between the intermediate casing and main shell to the lire-chamber, substantially as described.

2. The combination, with the main shell, its iire-chamber,and oblique top lining provided with flat teeth l1., arranged in tortuousor zigzag rows, of the deflecting-plate P, projecting from the front rearwardly toward the lower edge of said lining, as set forth.

3,. The combination of the main shell having the oblique shelves k and rear straight Shelf', k', and provided with openings f, the trechamber linings arranged below said shelves, and having openings at top, the rear shell and intermediate casing, and the elevated hearthplate with openings for access of air beneath it, and provided with openings to admit air to the space between the main and rear shells, substantially as described.

4. The combination, with the main shell mounted on the elevated hearth-plate, its tirechamber,and oblique top lining provided with flat teeth la, arranged in tortuous or zigzag rows, ofthe deflecting-plate P, projecting from the front rearwardly toward the lower edge of saidlining, and the rear shell and intermediate casing constructed, as described, with intervening spaces connected with the space under the hearth-plate and with the irechamber, substantially as set forth.

GEORG-E E. SIIARPE.`

Witnesses:

Gao. L. CONN, JNO. W. Hanson.

I OO

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