US556506A - Self lighting gas burner - Google Patents

Description

(NO MOdel.)

Patentedv Mal'. 17,' 1896.

(No Model.) 2 Sheets-Sheet 2.

H..A.KENT. SELF LIGHTING GAS BURNER.

N0. 556,506.` Patented Mar. 17, 1896.

ANDREW E GRAHAM. Priom-mnawASHlNGTDN C.

UNITED STATES HENRY A.

PATENT OFFICE.

KENT, vOF LONDON, ENGLAND.

SELF-LIGHTING GAS-BURNER.

SPECIFICATION forming part of Letters Patent No. 556,506, dated March 17, 1896.

Application filed October 14, 1895. Serial No. 565,658. (No model.)

To @ZZ whom it may concern/.f

Be it known that I, HENRY ANDREW KENT, engineer, a subject of the' Queen of Great Britain and Ireland, residing at The Limes, Brownlow Road, Bowes Park, London, in the county of Middlesex, England, have invented certain Improvements in or Connected with Gas-Burners of the kind known as Self-Lighting Burners, of which the following is a speciiication.

This invention has for its object to provide an efficient and durable means in connection with gas-burners in which the gas is lighted without the use of matches or the like. Itis known that platinum-black, or platinum in a line state of division, when subjected to the action of illuminating or heating gas and air will become heated to such a degree that by means of a platinum wire it will cause the gas issuing from the burner to be ignited, but hitherto considerable difculties have arisen in its practical application, the principal being that the platinum being subjected to the action of the ame of the main burner has soon been converted into a carbide, and is then untted for its purpose. It has been proposed to overcome this difficulty by providing a by-pass for the gas to be iirst ignited and then to be diverted from the by-pass to the main supply to be ignited, but this necessitates the provision of special taps and extra pipes or passages, and is therefore expensive and difficult to 'apply to ordinary gasiittings, whereas a device according to this invention can be readily applied to ordinary gas-fittings.

This invention consists in first causing a small supply of gas to pass in contact with the platinum or the igniting material used, and to become ignited thereby, the heat of the flame so produced being caused to act upon a device which, under the influence of this heat, is caused to effect the closing of the supply of gas to the platinum and to open the supply of gas to the main burner, the flame iirst kindled at the platinum after igniting the gas issuing from the main burner being extinguished, and the platinum thus protected from the injurious effect of a continued subjection to the action of a flame. The platinum-black and platinum wire are preferably inclosed in a tube or chamber to prevent injury or diplacement of the same.

The device which is acted upon by the heat of the flame of the small jet iirst ignited may consist of any arrangement which can be caused to alter its dimensions or position under the influence of .heat sufficiently to open the supply of gas to the main burner and afterward close the supply of gas to the small jet first ignited.

The accompanying drawings illustrate arrange ments according to my invention Figure 1 is a vertical section, and Fig. 2 a plan, of the chamber C with the upper parts removed. Figs. 3 and 4E are a front elevation and a vertical section of the arrangement applied to what is known as an incandescent gas-burner, and Fig. 5 is a vertical section of the arrangement applied to an Argand burner.

A is the main burner and B the igniting' device. y

C is a chamber into which the gas is admitted, it passing from this chamber to' the igniting device by the small perforation l), and to the main burner by the passage CL.

D is a corrugated box or case which may contain air, gas, or liquid, the said box vor case when it expands under the action of heat, by acting, for instance, on the levers E and F or the like, closing the perforation b to the flame ignited by the platinum and opening the valve a2, which admits the supply of gas to the main burner through the passage a.

The corrugated box or case D maybe contained in the chamber C, through which chamber the gas passes on its way from the gassupply pipe G (controlled by the tap g) to the platinum-igniter B and to the main burner A through the passage a and perforation l), respectively. The levers E and F are secured at one end to the inside of the chamber C, so that when they are acted upon by the expansion of the corrugated box or case D the valve d, secured to one of them, closes the perforation b for gas to the igniter B, and after the other of them has opened the passage a for gas to the main burner A, and thus the main supply of gas is ignited and the igniter-flame is extinguished, the valves being so operated IOO that the gas is admitted by the passage a before it is cut oi from the perforation Z9.

Vhen the supply of gas is turned oi the apparatus cools and the parts return to the positions ready to act to ignite the gas When it is again turned on.

H is a sheath which incloses the platinum and Wire of the igniter to protect them from injury.

The arrangements shown in Figs. 3 4f, and 5 differ from that shown in Figs. I and 2 in the positions of the parts to adapt them for use with the particular burners shown, and the parts are marked With the same letters as those used to indicate corresponding parts in Figs. l and E2.

In Figs. 3 and et the position of the igniter B and chamber C near the mantle X of the incandescent gas-burner necessitates the use of the pipes y and s, as shown, to conduct the gas to and from the chamber C.

In Fig. 5 the chamber C is provided With a compartmentat top communicating With the burner and separated from the main body of the chamber by a diaphragm c, in which is the passage a, controlled by the valve for admission of gas to the main burner, the gas passing to the igniter by the pipe b2 and box Z13, from which the small orifice b opens.

The invention may be applied to gas-burners generally for illuminating or heating purposes.

Having now particularly described and ascertained the nature of this invention and in what manner the same is to be performed, I declare that What I claim isl. In a self-lighting gasburner, the combination with the main burner and the igniter, having passages leading thereto respectively,

a normally-closed valve in the passage to the burner and a normally-open valve in the passage to the igniter, and means operated by the heating eiect of the igniter for opening the valve to the main burner and for closing the valve to the igniter, substantially as described.

2. In a gas-burner of the kind hereinbefore described, the combination With a main burner and an igniter, of a chamber through Which the gas passes, said chamber being provided with passages leading to said main burner and igniter respectively, a valve-controller in said chamber actuated by the influence of heat, and valves operated by said controller when expanded by heat to first open the passage to the main burner, and then close that to the igniter, as set forth. y

3. The combination with a chamber connected with the gas supply, of a main burner connected With said chamber by a normallyclosed passage, an igniter arranged at the side of the main burner and connected with the chamber bya normally-open passage, said igniter being adapted to become ignited by contact of gas therewith, an expansible de* vice in the chamber adapted to be operated by heat generated by the igniter7 and valves operated by said device to first open the passage to the main burner and then close that to the igniter, substantially as described.

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

Il. A. KENT.

lVitnesses IVILLIAM F. Ur'roN, II. D. I'IosKINs.

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