US264355A - Loco motive-furnace - Google Patents

Description

(No Model.) v 2 Sheets-Sheet 2.

H. M. SMITH.

LoGoMoTIVE FURNAGB. No. 264,355. Patented Sept.v l2, 1882.

N. PETERS. Phm-Limugrapher. wnmmgwn, D. C.

- past the diaphragm.

UNITED STATES PATENT OFFICE.

` HOVARD M. SMITH, OF ST. IiOUIS, MISSOURI.

LOCOMOTIVE- FURNACE.

SPECIFICATION forming part of Letters Patent No. 264,355, dated September 12, 1882,

Application filed April 14, 1882.

To all whom it may concern Beit known that I, HOWARD M. SMITH, of St. Louis, Missouri, have made a new and useful Improvement in Locomotive-Furnaces, of which the following is a full, clear, and exact description, reference being had -to the annexed drawings, making part of this specica` tion, in which- Figure l is an elevation, looking toward the rear end thereof, of a furnace having the iinprovement, the view being partly in section, taken on the line l l of Fig. 3; Fig. 2, a vertical transverse section taken on the line 2 2 of Fig. 3 Fig. 3, a horizontal section taken on the line 3 3 of Fig. 1; Fig. 4, a detail, being an elevation partly in section, showing a portion of the lower end of one of the tiles; Fig. 5, a bottom view of one of the tiles; Fig. 6, a horizontal section similar to that of Fig. 3, but upon an enlarged scale, and showing side tiles as well as the center tiles; and Figs. 7 and 8, details.

The same letters denote the same parts.

The presentinvention is an'improved means for more effectually consuming the fuel and iucreasing the heat in the furnace.

It consists in a diaphragm extending upward and downward in the furnace-chamber, and so as to leave spaces at the sides of the diaphragm for the passage of the heat-currents The diaphragm isnot only a means by which the gaseous currents and products of combustion are directed to the sides of the furnace-chamber, but itis also utilized in supplying currents of air or steam, or of both air and steam, to the furnace, and by making the diaphragm of materialsuch as tiling--capable of being highly heated the heat of the furnace can be still further increased.

Referring to the drawings, A represents a locomotive-furnace having the improvement, B being the furnace-door, O the grate, and D the fines, all of the customary description.

E represents a diaphragm composed preferably of tiles and in one or more pieces, and extending upward and downward in the chamber F, and preferably from the grate G to the roof f, butin all cases so as to leave passages GVG at the sides of the chamber. The diaphragm is-also preferably shaped to bring its center e nearer the end f of the furnace-cham- (No model.)

VbeiI than the wings or sides e c of the diaphragm, the exact shape preferred in this respect being that shown. The diaphragm has perforations e2 c3 extending vertically therein, and at various intervals having branches e4 leading in the direction of the furnace end f to the surface ofthe diaphragm. A portion, e?, of the perforations is for air-passages, and the others, e3, for steam, the air and steam entering the passages c2 e3 at the lower end of the diaphragm, and passing thence upward andl through the passages eL outward and into the chamber F. The steam is supplied through a suitable pipe, H. leading, say, from the boiler I. The fuel is placed between the diaphragm and the end fof the chamber F. Thepassages e2 e3 of the diaphragm E may be connected by a channel, e6.

Side diaphragms, J J, at each side of the furnace-chamber F, may be used in connection with the center diaphragm. They also extend upward and downward in the chamber Fili manner similar to that of the diaphragm E, and they may have air and steam passages e2 and e3. The side diaphragms, J J, are useful independently ofthe center diaphragm, E, but are more valuable in combination therewith.

To better hold the various diaphragms E J J in place, plugs K K, Figs. 7, S, areattached to or in the rooff, and made to engage in suitable recesses or slots, e5, in the diaphragms.

I claim- 1. A furnace chamber, F, having a diaphragm provided with air and steam passages, and extending vertically upward and downward from the grate to the top ofthe furnacechamber, leaving passages G G at the sides of the diaphragms, substantially as and for the purpose set forth.

2. In combination with the diaphragms E and J J, provided with aiihpassages e2, steampassages e3, and channel e, the steam-pipe H,

substantially as and for the purpose set forth.

substantially as set forth.

4. A furnace-chamber, F, havin g the center IOO diaphragm, E, and the side diaphragnis, J J, having air-passages e2 and steam-passages e3, all of said diaphragms extending downward and upward in Jhe furnace-chambers, and passages Gr Gr, being provided between the eentral and side diaphragms, substantially as described.

5. The combination of the diaphragm E, the rooff, and the plugs K K, said plugs engaging loosely in the recesses e5, substantially as described.,

6. The combination of the diaphragms J J, lche rooff, .and the plugs K K, said plugs engaging loosely in the recesses e5, substantially as described.

HOVARD 1W. SMITH.

Witnesses G. D. MOODY, SAML. S. BOYD.

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