US349779A - Gas-stove - Google Patents

Description

(No Model.)

J. W. BAKER..

- GAS STOVE. No. 349,779. Patented Sept. 28, 1886.

i *1 m I Q WITNESSES:

an ytww INVENTOR UNITED STATES,

PATENT OFFICE;

JQHN W. BAKER, OFPHILADELPHIA, PENNSYLVANIA. v

GAS-STOVE.

SPECIFICATION forming part of Letters Patent No. 349,779, dated September 28, 1886. Application filed May 27. 1885. Serial No. 166,811. (No model.)

To all whom it may concern:

Be it known that 1, JOHN W. BAKER, a citizen of the United States, residing in the city of Philadelphia, State of Pennsylvania, have invented certain new and useful Improvements tical gas-tubes having jets at or about the terminus of said flue, andfor which I have filed application for Letters Patent on the 5th day of December, 1884, being Serial No. 149,548; and my present invention consists in an improvement therein by the combination, with said central flue, of a hot-air flue located within the same, and communicating through the base thereof with the open air, and extending upward to the top of the stove through the draftchi'mney located above said central flue.

In the accompanying drawings, Figure 1 is a vertical section showing the relative arrangement of the several parts of my improved stove; Fig. 3, a vertical section of the gasburning apparatus in the stove, and Fig. 2 a top view thereof.

Suitably mounted upon a frame (indicated at A) is an annular ring or drum, B, connected air-tight with a like upper annular ring or drum, 0, by means of a series of upright radiating flue-tubes, D I), placed between them, and within the space formed by the series of tubes D D is supported a gas-burning apparatus, (shown in Figs. 2 and 3,) consisting of a central flue-chamber, F, closed at its base, except as hereinafter mentioned, and communicating air-tight with the lower drum, B, by means of flue-tubes E E. A series of gastubes, J J, lead from a gas-chamber, L, and are arranged vertically around the central flue,

-F, extending up to about the top thereof. A

chimney, M, preferably of funnel shape, fits closely within the central circular space formed by the shapeof the upper annular ring-or drum, 0, and is supported thereby, extending downward from the top thereof to the region of the gas-j ets, and being large enough in diameter at that point to form an annular space between it and the circular series of gas-jets, so that a current of air will be induced to that point from below, and there mingle with the gas issuing from the tubes J. The central flue, F, is open at its top and closed at its base, except for a flanged opening, (indicated at n,) upon which is supported an upright hot-air'fiue, S, open at both ends and smaller in diameter than said central flue,F, fitting air-tight in said flanged opening, and construeted,preferably,of some refractory material. Gas is supplied through the tube K at the base of the stove to the gas-chamber L. I

The operation is as follows: The gas which proceeds upward to the jets at the top of the gas-tubes J J is there ignited, when the heat produced thereby will cause an upward current of air to the region of the jets. The draftpip'e G, leading to the chimney and connected with the upper drum, 0, constitutes a draft-connection for the products of combustion of the ignited gas and air,.which are drawn downward through the central flue, F, to the lower drum, B, thence upward through the series of upright flue-tubes D to the upper drum, 0, and thence to the chimneyv through the pipe G. It is apparent that the central'flue, F, will be thereby highly heated, and that in consequence the gas in the surrounding tubes J will be heated and expanded before reaching the jets and the point of ignition. In like manner the upward current of air induced to the region of the gas-jets by means of the chimney M will be heatedand expanded by contact with the surrounding hot surfaces before reaching that point, and there mingle with the heated gas at the termini of the gas-tubes and be ignited therewith. Again,in like manner the hot products of combustion passing downward through said central flue, F, will impart great heat to the hot-air flue S within said central flue, and will induce a eurrentof air upward through the said hot-air flue S, from the top of which such air (which will be highly heated in its upward passage through the same) maybe ICO connecting the same, a central combustion flue-' chamber, F, arranged and supported between said drums and connected air-tight therewith at its base, a gas-chamber, and a series of gastubes, J J surrounding said flue-chamber F, and extending to the top thereof, or nearly so,

a chimney, M, supported by and located at its top within the said upper annular drum, (J,

- structed, combined, and arranged substantially and extending down to the region of the gasjets, whereby a current of air is induced thereto, and avertical hot-air flue, S, within said flueehamber .F, and connected therewith by a flanged opening therein at its base, and extending upwardto the top of said upper annular drum, 0, or nearly so, the said parts being con- 5 as set forth.

In testimony whereof I have hereunto affixed my signature this 29th day of April, A. D. 1885.

J OI-IN V. BAKER.

Witnesses:

FRANCIS S. BROWN, HVT. FEN'roN.

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