US972619A

US972619A - Lighter for burners of gas-stove ovens.

Info

Publication number: US972619A
Application number: US47568209A
Authority: US
Inventors: John Griffith Harvey
Original assignee: American Stove Co
Current assignee: American Stove Co
Priority date: 1909-02-02
Filing date: 1909-02-02
Publication date: 1910-10-11
Anticipated expiration: 1927-10-11

Description

LIGHTER FOR BURNBBS 0F GAS STOVB OVENS.

APPLICATION FILED FEBJ, 1909.

` Patented oct. 11,1910.

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LIGHTER FOR BUBNERS 0I' GAS STOVE OVENS.

APPLIGATION FILED EB.2, 1909.

, Patend'oct. 11, 1910.

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UNITED STATES PATENT OFFICE.

JOI-IN GRIFFITH HARVEY, 0F CHICAGO, ILLINOIS, ASSIGNOR TO AMERICAN STOVE COMPANY, OF ST. LOUIS, MISSOURI, A CORPORATION OF NEW JERSEY.

LIGHTER FOR BURNER-S OF GAS-STOVE OVENS.

To all whom 'tt may concern:

Be it known that I, JOHN G. HARVEY, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illi nois, have invented certain new and useful Improvements in Lighters for Burners of Gas-Stove Ovens, of which the following is a speciiication, reference being had therein to the accompanying drawing.

This invention relates to improvements in lighters for burners of gas stove ovens, and pertains particularly to that class of gas stoves and ranges which have two ovens, the upper one for baking, and the lower for broiling, roasting and toasting, and in which the burners are inclosed in the lower oven just below the partition which forms the bottom of the upper oven and the top of the lower oven, and because of this inclosed location of the burners they are not easily accessible to be directly lighted by a match.

The primary object of this invention is to provide a safe and quick lighter for either one or both of the burners from the outside of the stove.

The further object and features of the present invention will be fully described hereinafter, but briefly and generally stated, consist principally in so constructing the lighter that though it is placed within the lower oven and remains in position during the operation of the burner or burners, it does not in any manner interfere with the proper combustion; does not require any gas feeding holes in addition to those originally provided in the burners; does not require an extra valve as does the usual type of outside lighter, and may for this reason be aptly termed a valveless igniter, and is so constructed that its operation is not interfered with by any outside current of air, as from an open window or an open door.

In the accompanying drawings, Figure 1, is a perspective view of a portion of a stove with my improvement applied thereto, and principally shown in dotted lines. Fig. 2, is a top plan view o f my improved lighter shown applied to the burners, and a portion of the end wall of the oven shown in horizontal section. Fig. 3, is a sectional view taken transverse the oven burners and longitudinally through the lighter on the line 33 of Fig. 4. Fig. 4, is a sectional view taken on the line 4-4 of Fig. 2. Fig. 5, is an enlarged, detached, perspective view of Specification of Letters Patent.

Application filed February 2, 1909.

Patented oct. 11, 1910. Serial No. 475,682.

my improved lighter shown applied to the oven burner.

Referring now to the drawings, 1 indicates a portion of a gas stove, 2 the upper oven, 3 the lower oven, and 4 the horizontal partition dividing the two ovens. The usual type of burners 5 extend into the lower oven just below the partition 4 and extend from the end wall as shown in Fig. 2.

In carrying out my present invention I preferably provide a plate 6 for the end wall and this plate is provided with the openings 7 through which the outer ends of the burners 5 extend in the usual way, and these burners are supplied with gas through the usual conduit 8, and each burner is controlled by a suitable valve 9. As shown, the burners 5 are provided with the gas exit passage-ways 10 from which the gas issues and burns, and these passage-ways are located at a point below the center of the burner tubes, as clearly shown, and radiate therefrom in opposite-directions as clearly shown in Fig. 3. This is the usual construction and arrangement of these burner passage-ways.

My present improved lighter comprises a lighter casing or box 11 which is arranged between the burners 5 and extends from one to the other. This casing is provided with two longitudinally-arranged gas receiving and conveying passage-ways 12 and 13 which are open at their ends. The upper wall of one of these passage-ways (here shown as the passage-way 13) is provided with an opening 14, and this passage-way is provided with a vertical partition 15 located at the center of the opening 14 and eX- tends from top to bottom of the passageway. A tube 1G has its inner end suitably connected to the top of the casing 11 over and in communication with the opening 14. The outer end of this tube 16 extends into a chamber 17 formed in the plate 6, and this chamber 17 projects outwardly from the plate as shown. Formed in the upper wall of this chamber 17 is a lighting opening 18, and the end of the tube 16 projects beyond the opening 18 (for a purpose hereinafter explained) but does not extend to or against the outer wall 19 of the said chamber.

The passage-ways 12 and 13 of the casing 11 are completely separated by a vertical partition 20 which extends from end to end of the casing. The ends of the casing are provided with upwardly and outwardly curved arms 21 which form between them a slot 22, and this slot 22 receives the lugs 23 which are formed on the upper surface of the burners 5. These lugs and arms serve to position the casing on the burner, and are so located that the ends of the walls of the casing are in a line between the burner openings 10, so that they do not interfere with the proper burning of the gas at the openings of the burners which are adjacent the ends of the casing. To further prevent any interference with the burning of the gas at the adjacent openings of the burners, the ends of the casing are inclined toward the center of the casing, as shown in Fig. 3, and away from the burners. To further provide for the proper combustion of the gas at the openings which are adjacent the ends of the casing, and to provide for the upward escape of the products of combustion from said openings, the upper wall of the casing is provided with a plurality of openings 211, and these openings communicate with respectively the two passages 12 and 13.

The operation of this improved igniter is as follows1-Gas is admitted to one of the burners 5 by opening its respective valve 9. Because of convenience, this is usually the burner nearest the front of the stove. The gas flowing from the openings in this burner which are opposite the ends of the passage 13, iows into that passage and is deflected by the partition 15 into the tube 1G and from the tube 16 is conveyed into the chamber 17 and will escape therefrom through the passage 18, at which point it is lighted. The lighted gas burns or flashes backward through the tube 16, the passage 13, to the openings 1() adjacent the end of the casing vwhere it is lighted, and this in turn lights the gas escaping from the other openings of the burner. The tube 16 is made of ample proportions so that there is an ample supply of air thereto to support combustion within the tube, which insures the burning backward in the tube of the gas therein until it reaches the burner, thus effecting the lightinov of the burner. If the tube were a small tribe there would be a liability to the burning of the gas at the opening 18, or directly at the end of the tube in the chamber 17 without burning backward to the burners, because of a lack of suflicient air to support combustion within the tube. By making the tube large and of generous proportions such operation is prevented and the lighting of the burner from the outside of the stove through this tube 16 is insured. Preferably the chamber 17 is larger at its inner .end than at its outer, as shown in Fig. 2, so that its upper wall inclines upwardly and inwardly toward the plate G, which tends to cause the gas to flow up to and out of the opening 18. One of the burners having been lighted, the other burner is lighted by simply opening its valve, which will cause' the gas which is flowing from the openings of the unlighted burner into the pasage-way 12 to flow across this passageway to the other burner whereit is lighted and burned backward to the unlighted burner and lighting the gas which is escaping from the said openings, and the gas burning from these openings in turn lights the gas escaping from all the other openings in the usual way. If desired, both burners can be lighted at the same time by opening their valves which will cause the gas to flow, as previously explained, through the casing or passage 13 thereof, to the tube 16, thence to the chamber 17, where it can be lighted at the opening` 18. 1n this instance both burners will be simultaneously lighted. It will be understood from this'description that either 0f the burners can be first independently lighted, and that the other burner will be automatically lighted simply by opening its valve in the manner previously stated. Attention is also called to the fact that the tube 16 inclines upward, which facilitates the upward flow of the gas to the chamber 17.

From the foregoing it will be seen that in the use of this lighter no additional' gas openings in the burner, other than the usual openings, are necessary, and no change in the construction of the burner is required.

In the operation of this burner all the gas in the chamber 17, tube 16, and the casing 11 is-consumed, so that the burner or burners after being lighted operate in the usual way, and that after the burner or burners are lighted the lighter becomes inoperative and performs no function until it is again required for lighing purposes, and it does not interfere with the proper combustion in any of the gas outlets of the burner, but permits the burning of the gas at the ends of the casing the same as it burns at the other openings of the burner.

Having thus described my invention, what 1 claim and desire to secure by Letters Patent, is

1. The combination with a gas stove of an inclosed burner, a lighter having a passage-way with one end in communication with and adapted to receive gas from some of the burner openings, the opposite end of the passage-way extending to and having a communication with the outside of the stove, the end of the passage-way adjacent the burner having its wall separated from the adjacent burner openings to permit the proper combustion of the gas escaping from said adjacent openings.

2. The combination in a gas stove of two separate and independent burners inclosed therein, a casing extending from one burner to the other, the casing having a passageway with open ends adapted to receive gas from some of the openings of either or both burners, a tube having its inner end in Communication with the said passage-way and its outer end extending to and having communication with the outside of the stove, the casing passage-way having a vertical partition or delector located at a point intermediate the walls of the inner end of the said tube, whereby gas entering the passageway from either burner is defiected upward to the said tube.

3. In a gas stove the combination of two inclosed separate and independent burners, a lighter comprising a casing extending from one burner to the other, the said casing having separate passage-ways, the ends of the passage-ways adapted to receive gas from some or' the burner openings of either or both burners, a tube having its inner end in connnunication with one of the casing passage-ways and its opposite end extending to and having communication with the out* side of the stove for the purpose described.

l. The combination in a gas stove of an inclosed burner, the wall of the stove having a chamber, the wall of the chamberhaving an outside opening, and a lighter having a passage-way the inner end of which is adapted to receive gas from some of the burner openings, the opposite end of the passage-way extending to and in communication with the said chamber.

5. The combination in a gas stove of an inclosed burner, the outer wall of the stove having a chamber projecting outwardly, the wall of the chamber having an outside opening, a lighter having a passage-way with its inner end adapted to receive gas from some of the openings of the burner and its outer end projecting into the said chamber to a point beyond the said chamber opening for the purpose described.

G. The combination in a gas stove, of an inclosed burner, the outer wall of the stove having an outwardly projecting chamber, the wall of the chamber having an outside opening, a lighter comprising a tube having its inner end adapted to receive gas from some of the burner openings and its outer end projecting through said outer stove wall into the said chamber with its outer end open adjacent the outer wall of the projecting chamber.

In testimony whereof I aliiX my signature in presence of two witnesses.

JOHN GRIFFITH HARVEY. `Witnesses GEORGE M. CLARK, A. F. MILLIKAN.