US733707A

US733707A - Gas-stove.

Info

Publication number: US733707A
Application number: US14837003A
Authority: US
Inventors: Hilliary Eldridge
Original assignee: SECRETARY
Current assignee: SECRETARY
Priority date: 1903-03-18
Filing date: 1903-03-18
Publication date: 1903-07-14
Anticipated expiration: 1920-07-14

Description

No. 733,707. PATENTED JULY 14, 1903. H. ELDRIDGE.

GAS STOVE.

APPLICATION FILED MAB. 18-.1903.

N0 MODEL ZSHEETS-SHEET E 20 1* Z f I 3/ 30 I N I I! .30 w 1 1M 14 A? -i I 56' t l 36 H 3, i m l h 6 A v PATENTED JULY 14, 1903. I H. ELDRIDGE.

GAS STOVE.

APPLICATION nun MAR. 18', 1903.

2 SHEETS-SHEET 2 UNITED STATES.

Patented July l4, 19033 PATENT OFFICE.

HILLIARY ELDRIDGE, OF JERSEY CITY, NEIV JERSEY, ASSIGNOR TO SEO- RETARY, OF NEIV YORK, N. Y., A CORPORATION 'OF NEW YORK.

GAS-STOVE.

SPECIFICATION forming part of Letters Patent No. 733,707, dated July 14, 1903.

Application filed March 18, 1903.

. To all whom, it may concern:

Be it known that I, HILLIARY ELDRIDGE, a

citizen of the United States, residing at J ersey City, in the county of Hudson and State of New Jersey, have invented certain new and useful Improvements in Gas-Stoves, of which the following is a specification.

This invention relates to improvements in gas-stoves of the kind that are especially designed to be attached to the ordinary gasburners for heating purposes.

The object of the invention is to produce a gas-stove that will have the greatest possible area of heat-radiating surface consistent with the least consumption of gas. This isaccomplished by constructing the heating parts of the stove in cylindrical form-that is, providing an inner cylinder of some fireproof material-forinstance, metal,magnesia, clay, or the like-and surrounding the said cylinder with a larger cylinder of foraminous material, preferably an asbestos fabric that can be heated to the proper condition.

By the above-described arrangement a combustion-chamber is formed between the inner and outer cylinders, and the gases are admitted to this chamber through a Bunsen burner covered by any suitable screen and provided with gas-outlets interjacent to the two cylinders. The burning gases in this chamber will rise and completely envelop the inner cylinder and be reflected against the foraminous outer cylinder, from which the heat is effectually radiated.

If deemed advisable, the stove can be inclosed in any suitable mannersuch, for instance, as by a perforated metal shield or a suitable frame provided with transparent sections of mica or the like.

The invention consistsin the peculiar construction and arrangement of parts for producing the desired results, all as hereinafter fully described,and more particularly pointed out in the claims.

In the accompanying drawings, Figure 1 is a central vertical section of the stove and its supporting-base. Fig. 2 is a horizontal section on the line A A, Fig. 1. Fig. 3 is a plan view of the cap covering the combustionchamber. Fig. 4is a central vertical section Serial No. 148.370. (No model.)

of the stove, showing a modified form of construction.

l is a hollow support or base, of any suitable material, into which passes a gas-supply pipe 2, said pipe having an upwardly-project- 5 5 ing portion 3 centrally located in said base or support. Connected to the supply-pipe 3 is a Bunsen burner 4, provided with suitable lateral air-inlets 5. The base or support 1' has a conical recess therein in which the Bun- 6o sen burner is located, air being admitted to said'burner, as shown by arrows in Fig. 1. Suitably secured to the Bunsen burner and forming part thereof is a flanged base-block 6, which is adapted to support the stove proper and all its parts. In the lower portion of this block, or that part which engages the Bunsen burner, is a chamber wherein the gases are mixed and from which they flow through openings .9 intoa thimble-shaped screen 8, of any suitable material. Projecting upwardly from the block 6 is an annular flange 10, which engages the screen 8 and holds it in proper position, where it is supported by the reduced upwardly-projecting central portion 11 of the block 6, said screen being pierced to receive therethrough a tie-rod 12, which is tapped or otherwise suitably secured in the central portion 11. Supported on the top of the screen 8 and the upwardly-projecting por- 8.0

tion 11 of the base-block 6 is a cylindrical shell 14, constructed of any suitable material-for instance, metal with a polished exterior surface or fire-clay or magnesia with a glazed surface. By polishing or glazingthe surface of the cylinder. the heat will be reflected against the inner wall of the surrounding foraminous cylinder 20 and tend to effectually increase heat radiation. When this heatrefiecting cylinder is constructed of metal, 0 it is usually made in the form shown in Fig. 1that is, tubing is employed and caps 14:

placed on each end thereof to prevent the ignited gases from entering said cylinder.

Surrounding the cylinder 14 is a cylinder 5 20, of foraminous material, that is suspended in the desired position by suitable nuts 21 22,

engaging the tie-rod 12, the lower end of the foraminous cylinder being held'in position by an upwardly-projecting circumferential 1C0 rib 16 on the block 6. The nut 21 engages the upper threaded end of the tie-rod'12 and is provided with a flange 21, upon which rests the intnrned end of the foraminous cylinder. The nut 22 is also adapted to engage the upper threaded end of the tie-rod 12 and has a flange 22, similar to that of the nut 21, the under part of said flange engaging the intnrned portion 20' of the foraminous cyliuder. Thus it will be seen that when the foraminous cylinder 20 is placed in position over the circumferential rib 16 and the intnrned portion 20 rests on the flange of nut 21 the nut 22 can be adjusted on the tie-rod 12 and turned down until its flange 22' grips the intnrned portion 20 of the cylinder and securely binds said portion between the flanges of the two nuts, thereby securingthe foraminous cylinderin the proper suspended position. The nut 21 is provided with openings 21", forming a flue to permit the products of combustion to escape through the top of the stove. The nut 22 has openings 22 for the same purpose as those explained for the nut 21. A binding-nut25 engages the tie-rod l2 and securely retains the

flanged nuts

21 and 22 in adjusted position.

A vertical combustion-chamber 26 is formed between the inner imperforate cylinder and the foraminous cylinder, into which flow the gases through the openings 9, leading from the mixing-chamber 7 into the screen 8. The screen 8 is thimble-shaped and covers the circular opening 28, through which the gases pass from the burner into the combustionchamber. The burning gases in the combustion-chamber will impinge the inner wall of the foraininous cylinder, as shown by the arrows in Fig. 1, and be deflected directly up the combustion-chamber between the two cylinders, the inner cylinder constantly tending to reflect the heat against the foraminous cylinder, so that the said foraminous cylinder will be heated equally from bottom to top, thereby causing uniform heat radiation.

Surroundingthe stove proper is a casing or shield 30, that can be constructed of any suitable material and in any desired manner or form, but herein shown cylindrical and having perforations 31, through which the condition of the stove proper may be remarked. This shield is not essential to the construction of the stove and is not employed to increase or diminish the heating qualities thereof, it being used to prevent accidental contact with the heated foraminous cylinder. The top of the shield or casing is covered with a cap or hood 32, which may be constructed in any suitable design or formation and is open at the top in the manner shown at 33 for the purpose of allowing the products of combustion to escape after being emitted from the combustion-chamber.

A modified form of the stove is shown in Fig. 4, wherein the central portion 11 of the block 6 is omitted, as is also the tie-rod 12 and the heat-reflecting cylinder let. The arrangement of the Bunsen burner, the mixingchamber in the block 6, and the thimbleshaped screen 8 is the same as shown in Fig. 1. The removal of the heat-reflecting cylinder will allow the burning gases to escape into the combustion-chamber with more freedom and heat the foraminous cylinder to the desired intensity. The cylinder 20 is supported in its proper position by having its intnrned flanges 20 on the upper end of said cylinder engaged underneath by a flanged cap 35. or casing is a plate 36, that has an annular recess 37, into which fits the flanged cap 35 in such manner that the intnrned flanges 20 of the cylinder will be engaged and supported by the said cap 35 and plate 36. flanged cap 35 and the plate 36 are held together by means of a bolt 38, that passes centrally therethrough and is engaged by a nut 30, the flanged cap 35 and the supportingplate 36 having openings 35 and 36' therein, through which the products of combustion escape from the combustion-chamber.

Of course it is obvious that changes in the details of construction and practical application can be made Without in any manner departing from the spirit of the invention. For example, while I have shown and described and particularly claimed the cylindrical form as having particular advantages other similar forms are advantageous also on grounds of beauty or for the purpose of producing a variety of designs.

Having thus described my invention, the following is what I claim as new therein and desire to secure by Letters Patent:

1. In a stove, the combination of aBunsen burner, a base-block supported thereon, a heat-reflecting cylinder located above the base-block, a foraminous cylinder surrounding the heat-reflecting cylinder and forming a combustion-chamber between said cylinders, and a screen attached to the base-block under the heat-reflecting cylinder in such manner as to form an annular ingress for the gases from the Bunsen burner.

2. In a stove, the combination of a Bunsen burner, a base-block supported thereon, a heat-reflecting cylinder supported on said base-block, a foraminous cylinder surrounding the heat-reflecting cylinder and forming a combustion-chamber between said cylinders, a screen attached to the base-block under the heat-reflecting cylinder in such manner as to form an annular ingress to the combustion-chamber for the gases from the Bunsen burner, and a shield surrounding the foraminous cylinder and supported on the baseblock, for the purposes described.

3. In a stove, the combination of a Bunsen burner, a base-block supported thereon, a screen seated in an annular recess in the baseblock, a heat reflecting cylinder located above the screen, a foraminous cylinder surrounding the heat-reflecting cylinder and forming a combustion-chamber between the Supported on the top of the shield The cylinders, a vertical tie-rod secured in the base-block, and means engaging said rod to support the cylinders in proper position and with proper relation to each other, for the purpose explained.

4. In a stove, the combination of a Bunsen burner, a base-block supported thereon, a cylinder of foraminousfrnaterial supported on said block, a heat-reflecting cylinder within said foraminous cylinder, a rod attached to the block, apertured nuts engaging'the rod and foraminous cylinder, and a screen under the heatreflecting cylinder covering the gas-inlet to the foraminous cylinder.

5. In a stove, the combination of a Bunsen burner, a base-block supported thereon, a rod attached to the block, a flanged nut on the rod, a foraminous cylinder having an in- HILLIARY ELDRID GE.

Witnesses:

WM. A. COURTLAND, J. GREEN.