US1169505A - Gas stove and burner lighting device. - Google Patents

Description

L. A. MARSH.

GAS STOVE AND BURN GHTING DEVICE.

. APPLICATION FILE .26. 1915.

1 1955, Patented Jan. 25, 1916.

INVENTOR .Zzzcz'ew awm/z A'rroRsEY WITNESSES -I/ A z are LUCIEN AUGUSTUS MARSH, OF SAN FRANCISCO, CALIFORNIA.

GAS STOVE AND BURNER LIGHTING DEVICE.

Specification of Letters Patent.

Patented J an. 25, 1916.

Application filed April 26, 1915. Serial No. 23,957.

To all whom it may concern Be it known that I, LUCIEN A. MARSH, a citizen of the United States, residing at the city and county of San Francisco and State of California, have invented new and useful Improvements in Gas Stove and Burner Lighting Devices, of which the following 1s a specification.

My invention relates to improvements in devices for igniting gas at burners such as are employed for gas stoves and plates.

It consists in a novel combination of parts, and connections with the supply gas conducting main, and with the burners, so that either or all of the burners may be lighted automatically and without any escape of unburned gas and the supply of 'gas to any burner may be regulated as required.

It also comprises details of construction, all of which will be more fully .explained by reference'to the accompanying drawings, in which- Figure 1 is a plan of the main burners and the pilot light and their connections. Fig. 2 is an enlarged view of a single main controlling cock.

As shown in the drawings, AA are the main burners of a gas stove or plate disposed at the angles of an imaginary rectangle, and having conducting pipes 2 leading from a gas main 3 which is fixed in suitable and convenient relation to the burners.

7 is a pilot light located substantially upon the level of the main burners and equidistant therefrom and having a gas conducting pipe 6 to supply a small torch flame within the pilot head. The jet openings of this pilot light are in alinement, one with each of the main burners.

The supply of gas is controlled by a cock 4, between the supply main and each of the conductors 2. Small pipes 5 lead from each of the cocks t to the pilot supply 6 so that gas may be first supplied to the pilot from either of the cocks, and jets of flame projected to the main burners, after which the gas supply to the burner or burners to be lighted will receive gas which will be instantly ignited and all escape of unconsumed gas with its resultant odor will be prevented which is an important feature of my invention.

The cocks by which each gas inlet is controlled consists of a turnable plug 4: having a direct passage through it. This plug fits the shell or body 4 which has a corresponding passage 4 to admit gas from the main 3 to the burner connecting pipes 2. At one side of the shell 4 is a small passage 5 which connects through a small lead pipe 5 with the pipe 6 and through it with the pilot light head 7 within which a small torch flame is supplied from a cock controlled extension 6 opening into the main 3. The movement of the plug is limited by a stop pin contacting with shoulders on the casing shell to hold the plug in position in either direction. The operation will then be as follows: When the plug is turned from its normally closed position, the passage through it first opens communication between the gas main and the pilot light supply, thus causing jets of flame to be shot out directly against the main burner heads, and a further turning of the plug connects the gas supply with the main burner, while the cock is being turned, thus supplying gas thereto, and as this gas meets the jet from the pilot light it will be immediately ignited without allowing any escape of unconsumed gas at this point. Any one or all of the burners 'may thus be placed in action independently.

It will be seen from this construction that by turning the cock plug, the supply of gas to the main burner may be regulated after being opened, without regard to the pilot light supply, after ignition of the main burner has taken place.

The pilot light supply pipes 5 may be connected with a closed chamber 8 at the baseof the pipe 6, or they may extend up through this pipe independently and connect with the jets in the head of the burner of the pilot light.

The advantage of the above described construction is that instead of discharging a jet of gas from the main burners to cross an open space to meet the pilot light at its head, a jet of flame is discharged from the pilot head an instant before gas reaches the main burner, and when the gas does reach the main burner, it is instantly ignited with no escape of unconsumed gas which must take place when the gas is discharged across the interval between the main burner and the pilot before it can be ignited.

It will be seen that when the preliminary jet supply to the pilot light is carried up through the pipe 6 and discharged directly toward the main burner to be used, only a single jet will be used, and each succeeding burner will thus be independently ignited by its own individual connecting jet, but when gas is supplied to the base of the pipe 6 from either of the cocks, all the pilot jets will discharge at the same time, and either or all of the main burners may be ignited.

Having thus described my invention, what and discharge a jet of flame against the main burner heads and upon further turning thereof to subsequently deliver gas to the main burner heads to be ignited at said heads Without discharge of unburned gas.

2. In a gas burner igniting device of the character described, main burner heads, a pilot light burner head with jet openings in alinement with the main burners, a small constant gas supply pipe to the pilot head, pipes connecting the main heads with a source of supply, other independent pipes connecting with the pilot head, and coacting means to first deliver gas to the pilot burner jets and subsequently to the main burners.

3. In a gas burner igniting device, main burners, a source of supply, and independent pipes from the supply to the burners, a centrally located pilot pipe having an independent valve-controlled connection from the supply, small pipes within the pilot pipe with nozzles directed toward each of the main burners and connected with the controlling cocks of the main burners diagonally between the direct main burner supply openings, and controlling plugs'by which gas is first delivered through the igniting nozzles of the pilot head and subsequently to the main burners upon further movement of said plugs.

4. A gas burner igniting device including main burners, apilot light head, and unitary means associated with each main burner to first discharge ignited jets through the pilot head against the main burners upon initial movement of said means, and subsequently upon further movement of said means to supply gas to the main burner and cut oil the ignition supply.

5. The combination in a gas burner igniting device, of main burners, a supply manifold, pipes leading from the manifold to said main burners and having casings with main passages,'a pilot torch intermediate of the main burners having an independently controlled gas supply pipe, pipes extending through said pilot pipe, with nozzles ,directed toward the main burners, and having their opposite ends connected with the respective main cock casings between the main passages thereof, and plugs turnable in said casings to first deliver gas to the nozzles to be ignited by the pilot torch and by further turning to open the passages to the main burners.

6. In combination with a series of burners, and a source of supply, a pilot, a valve for each burner, and connections leading from the respective valvesto the pilot for supplying jets to the burners, said valves being formed so that upon initial turning thereof the jet will first be supplied to the pilot and upon further turning thereof the gas will be supplied to the burner and the jet cut off. In testimony whereof I have hereunto set my hand in the presence of two subscribing witnesses.

LUCIEN AUGUSTUS MARSH.

Witnesses:

G. S. MARSH, BURNHAM W. MARSH.

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