US1051071A - Copper-back-reflector gas-heater. - Google Patents

Description

P. M. BRADLEY. COPPER BACK REFLECTOR GAS HEATER.

APPLICATION FILED APR.4, 1912.

1,051,071. Patented Jan.21,1913.

wi tmeooeo COLUMBIA PLANOGRAPH 60.. WASHINGTON, D. C.

FORTE M. BRADLEY, OF LITTLE ROCK, ARKANSAS.

COPPER-BACK-REFLECTOR GAS-HEATER.

Specification of Letters Patent.

Patented J an. 21,1913.

Application filed April 4, 1912. Serial No. 688,443.

To all whom it may concern Be it known that I, PORTE M. BRADLEY, a citizen of the United States, residing at Little Rock, in the county of Pulaski and State of Arkansas, have invented certain new and useful Improvements in Copper- Back-Iteflector Gas-Heaters; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will. enable others skilled in the art to which it appertains to make and use the same.

This invent-ion relates to heaters, and it relates more particularly to gas heaters of the box pattern, or open front pattern.

An object of the invention is to provide a gas heater of this construction provided with one or more deflector plates, whereby the heat from the burning gas is distributed within the heater, so that the greatest radiating efficiency is obtained therefrom.

Another object is to provide flanged side linings for supporting the usual corrugated bottom, while serving the additional purpose of protecting the box or casing.

A still further object is to dispose the corrugated bottom and upper deflector plate in cooperative relation for protecting the rear part of the casing, against the action of the flame.

A still further object. of the invention is to dispose the gas burner near the open front and in such relation thereto that the flame therefrom will receive a draft both above and below the same.

Other objects and advantages may be recited hereinafter and in the claim.

In the accompanying drawings which form a part of this application, Figure 1 is a vertical side sectional view through the front and back of a stove embodying my invention, and, Fig. 2 is a perspective view of the same.

Referring to the drawings in which similar reference characters designate corresponding parts throughout the several views, the box or casing is designated 5, being open in front between the points 6 and 7, and being provided with a top 8, which may be of any proper construction. A flue outlet 9 is provided in the upper portion of the back of the box, and said box is provided. with the usual corrugated bottom 10, the lateral edges of which are supported by flanges 11, one of which appears in Fig. 1, said flanges being formed on the bottom edges of side linings 12 which extend above the burner 13, thereby protecting the side walls of the box from the zone of greatest heat, so that the polish and enamel thereof will not be detrimentally affected, the top edge of said side linings being designated 12 The corrugated bottom 10 may also extend on a plane above the burner, being secured to the back of the box at its top edge, by means of bolts 14.

The burner 13 is preferably provided with lava gas jets or tips 15, of such construction, and in such relation to the box, as to throw a jet of gas, in a horizontal direction, from the front portion approximately to the rear portion of the box. hen these gas ets are lighted, a considerable degree of heat therefrom is imparted to the back part of the stove, so that it becomes necessary to protect the said back part of the stove against the detrimental influence of the heat. I therefore provide an upper deflector plate 16, secured to the back at 17 and having its lower edge fitted against the corrugated bottom 10. The deflector plate 16 extends upwardly and forwardly from its fastening 17, and coacts with a lower deflector plate 18, for causing the flame and heated air therefrom, to pass alternately upwardly and laterally in an S-shaped course.

Stoves of this character are usually formed in such manner that products of combustion may escape through or around the top thereof, and this is sometimes objectionable; and in such instances it is desirable that all of the products of combustion escape through the flue opening. In order to prevent the escape of the products of combustion at the top of the stove, I provide the flue opening considerably below said top, and while I extend the deflector plate 16 forwardly, for the purpose of preventing discharge of the products of combustion before the heat has been radiated therefrom, I provide a flue opening on a plane below the top edge of the deflector plate 16, so that the products of combustion are drawn downward from the top, so that there will be no escape of the combustion gases at the top of the stove.

The deflector plate 18 is preferably secured to the front wall 19 of the box by means of a bolt 20, in the manner shown, and has a flange 21, which is secured to the side wall 22 by means of a bolt 23. The

lower deflector plate 18 extends rearward in a slightly inclined or substantially horizontal direction, having its rear edge portion curved slightly upward.

It will be seen that an air passage 24 is provided between the burner 18 and the deflector plate 18, thereby protecting the deflector plate from the zone of greatest heat, and cooperating with the opening below the burner 13, for surrounding the blaze 25 with cool air, which absorbs heat from the flame and distributes it, at a reduced temperature, to the back, sides, upper front and top of the stove, as it passes, in the direction of the arrows between the deflector plates, between the upper deflector plate and the top of the stove, and out through the opening 9. The lengths of the respective arrows, somewhat graphically illustrate the diminution of temperature as the heat becomes absorbed and radiated by the several elements of the stove. It is well known that the heated air which passes out through the opening 9 ascends to the ceiling of the room which is being heated, and the desired heating efficiency is not obtained, where the heat is thus allowed to ascend. It is therefore desirable to so distribute the heat within the stove, that it passes out through the surface thereof, by radiation, rather than in the form of a heated air current.

From the foregoing, it will be seen that I have provided a stove of this character having maximum radiating efficiency, and at the same time I have provided elements for effectually protecting the stove against detrimental overheating of certain parts, said elements being so related wit-h each other and with the body or box of the stove, as to properly perform the protecting, distributing and radiating functions.

I do not limit my invention to the exact details of construction, combination and arrangement of parts, as described and illustrated in the foregoing, but my invention may only be limited by a reasonable interpretation of the following claim.

IVhat I claim is:

In a gas stove, a box having a back and sides and an open front, a horizontal burner located near the open front below the top of the opening and adapted to. direct a flame rearwardly, a deflector plate joined onto the front above the opening thereof and extending rearwardly and upwardly, the relation of the open front and the burner being such as to provide an air passage between the burner and the deflector plate for the purpose of preventing contact of the flame with the deflector plate, a bottom member secured to the front below the opening and extending rearwardly and upwardly and being joined onto the back substantially on the horizontal plane of the burner, a deflector plate secured onto the back and abutting upon the bottom member and extending upwardly and forwardly therefrom in such relation to the first said deflector plate as to provide an air passage therebetween, the forwardly extending deflect-or plate having its upper edge in such relation to the stove top as to form an air passage between said top and forwardly extending deflector plate, said back having a flue opening therethrough on a plane below the top edge of the forwardly extending deflector plate, so that the heated air and products of combustion after passing through thefirst said air passage must pass rearward and downward before escaping through the outlet opening so as to prevent the escape of said products of combustion at the top of the stove.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

PORTE M. BRADLEY.

Witnesses J. M. BROWN, 0. M. ENGLE.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. C.

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