US407933A - Gas-stove - Google Patents

Description

(N0 Mbdel.) 2 shee'ts sheet 1.

L. KETGHUM. GAS STOVE.

No. 407,933. Patented July 30, 1889.

N. PETERS. Phnlo-Ulhogmphel'. Wuhinglon, D. c,

(No Model.) 2 Sheets-Sheet 2. L. KETCHUM.

GAS STOVE.

Patented July 30, 1889.

N PETERS. Photo-Lithographer, Walhiugtoll, 0' C.

UNITED STATES PATENT Flues.

.LANDON KETOI-IUH, OF SAUGATUGK, CONNECTICUT.

GAS-STOVE.

SPECIFICATION forming part of Letters Patent NO. 407,933, dated July 30, 1889.

Application filed November 25, 1887. Serial No, 256.043. (N0 model.)

To all whom it may concern.-

Be it known that I, LANDON KETOHUM, a citizen of the United States, and a resident of Saugatuck, in the county of Fairfield and State of Connecticut, have invented-a certain new and useful Improvement in Gas-Stoves, of which the following is a specification.

My invention relates to an improvement in gas-stoves, and primarily to that form of gas stoves in which the flame burns horizontally from jets placed at the top of the stove, and in which the heat is thrown outby means of a radiator or reflector-plate composed of a plate of polished tin in front of the gas-jet.

My invention consists in a rearrangement of certain well-known and old devices so that their combination will produce a new effect, a much better result, and greater heat and also considerable saving of fuel.

The invention will be best understood by reference to the accompanying sheets of drawings, in which Figuresl, 2, and3 are respectively a front view, vertical longitudinal section and crosssection of a gas-stove having my improvement; and Figs. 4, 5, and 6 corresponding views of the old form of gas-stove now in very general use.

Similar letters refer to similar parts throughout the several views.

In the drawings, S represents the outer shell of the gas-stove; L, the legs and frame-work upon which it rests; T, the top provided with the air-holes t t i; T T, the end walls, and T" the rear wall, of the stove; D, the draft plate, placed below the top; and cl d, &c., draft-openings in the upper'side wa ls of the shell.

J represents the gas-pipe, provided with a series of jets jj, &c., which is connected with the gas-supply pipe at the point F.

R represents the radiating surface or plate, which in the ordinaryform of stove is curved in the manner shown in the views; 4", the airspace back of the same, and R the arm or bar which holds it in position.

In the ordinary form of gas-stove now in common use the construction is that shown in Fig. 5, consisting of an inner and an outer shell with an air-space 0 0 at either end of the stove, between the end walls of the shell is placed in the front of the stove, with the jetsj directed inward, as shown in Fig. 6, and the upper portion of the case is composed of a single solid plate C, as shown in the views.

The direction of the hot and cold air currents which are generated when the gas is lighted in this form of stove are shown by the various arrows in Figs. 4, 5, and G. A current of cold air enters at the lower part, as shown by the arrows in Fig. 5, traverses the passages 0 o and the space 0" back of the radiating plate or surface R, and comes in cont-act with the hot-air current and the flame escaping from the burners j at the top of the radiating-plate R. The effect of this is to divide the gas-flame, as a strong draft is created. One current tends to draw the flame downward, as shown by the arrow in Fig. 6, and the other to draw it upward and toward the openings t t, as shown by the upwardly-directed arrows in Figs. 5 and 6. The consequence is that in the ordinary form of gas stove, where it is desired'to burn the full head of gas and obtain the maximum amount of heat, the stove is extremely liable to smoke, thereby wasting an unknown quantity of gas and creating an unpleasant smell.

Now, I have discovered that by rearranging and modifiying the posit-ions of the various elements which are found in the ordinary gas-stove, as above described, I am able to produce much greater heat with less or an equal consumption of gas and to do away with all smoke or odor.

Figs. 1, 2, and 3 show the modifications which constitute my improved form of gasstove, and they are more particularly described as follows: The radiating-plate R is made slightly lower at the top, as shown in Fig. 3, and the pipe J is placed immediately above and in close proximity to the same and with the jets j turned outward toward the front of the stove, as shown in the figure. The radiating-plate is lengthened at either end, so thatiit shall come in close contact with the ends T T of the shell S, as shown in Fig. 2, thereby dispensing with the spaces 0 0, and a series of perforations c c, of convenient size,

are provided in the face-plate C for the purpose hereinafter mentioned. It will be obvious from the direction of the arrows shown in Figs, 2 and 3 that the direction of the aircurrents in the new improved form of stove shown in Figs. 1, 2, and 3 is radically different from that in the old form of stove. The cold air enters from the passage 0' in a thin sheet over the pipe J and behind the flames issuing from the jets. The effect of the openings c c is to create a strong horizontal draft under the plate D, the position of which is not changed, which draft is unbroken by any cross-drafts, such as enter from the passages 0 0 in the 01d form of stove, as these latter are entirely eliminated, while the radiatingplate R will throw out the heat, as before, and the openings t Will permit it to escape npward into the room or other space to be heated. The connection of the stove with the gassupply pipe may be made as before.

It must be understood that the various elements above described are old, and that no claim is made to any of them except in combination. It is believed, however, that their arrangement and modification above described and that the combinations of the said elements in the manner above set forth are I new.

Hence I claim as my invention 1. In a gas-stove, the combination, substantially as hereinbefore set forth, of the radiating-plate R, extending the entire length of the stove, so that no air is admitted at either end of the same, the gas-pipe J, with the jets jj placed at the back of the stove and immediately above'the plate R, with the jets directed outward, and the front plate 0, provided with the openings 0, directly in front of the gas-jets, for the purposes set forth.

2. In a gas-stove, the combination, substantially as hereinbefore set forth, of the radiating-plate R, extending the entire length of the stove, the passage 0", whereby air is admitted at the rear only, the gas-pipe J, with the jets j j placed at the back of the stove and directly above the plate R, with the jets directed outward, the face-plate provided with the openings 0 0 directly in front of the gasjets, the draft-plate D, placed above the jets, and the top and end walls provided with the openings (1 d and t t, for the purposes set forth.

- Signed at New York, in the county of New York and State of New York, this 21st day of November, A. D. 1889.

LANDON KETOI-IUM.

Witnesses:

WILLARD P. BUTLER, EDWIN T. RICE, J R.

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