US787686A - Gas-range. - Google Patents

Description

Patented April 18, 1905.

PATENT OEEICE.

JOHN F.. MILLS, OF PORT CHESTER, NEW YORK.

GAS-RANGE.

SPECIFICATION forming pait of Letters Patent No. 787,686, dated April 18, 1905.

Application filed November 16, 1903. Serial No. 181,271.

Ranges, of which the following is a specification.

Heretofore in lighting gas-ranges great care had vto be exercised to avoid an explosion of the gas and air mixture in the oven, because if the range was left for a few moments after turning on the gas the oven was liable to lill with gas, which would explode on the application of a match. This would be avoided if it was necessary to open the oven-door before applying the match, as then the ygas would at once escape. Gas-ranges not subject'to this objection have heretofore been made; but

these were provided with one or more openings 1n the oven -bottom covered by movable plates, and it therefore was necessary not only to open the oven-door but removethe plate to ignite the gas and air mixture. In the device of my invention it is only necessary to open the oven-door to discover the opening at which the gas and air mixture may be ignited.

My invention is especially applicable to a gas-range having an oven and a broiler-chamber beneath the same and separated therefrom by the oven-bottom, andA both said oven and broiling-chamber are provided with suitable doors. I employ one or more openings or apertures in the front plate ofthe range, preferably located between the oven and broiler chamber, by means of which the burner is lighted. Extension ame-conveyers or pilot-lights are preferably employed to the burners, and these come immediately to and terminate at these openings, and I construct the bottom of the oven-door so as to close over the aperture or apertures. A lug or ap is preferably formed with the ovendoor, which when the oven-door is closed is adapted to cover said aperture. This iiap may be an integral downward extension of the oven-door, or it may be a part separate from but pivotally connected thereto and movable therewith and independently thereof.

In the drawings, Figures 1, 2, and 3 are partial front elevations showing corners of the oven and chamber doors and representing forms of my invention. Fig. 4 is a side elevation and partial section of a burner and flame-conveyer leading to the aperture in the division-plate; and Fig. 5 is a view similar to that of Fig. 4, but showing a modification.

a represents a division plate extending across the front of a gas-range in approximately central position between the oven and the broiling-chamber, and this division-plate, according to my invention, is provided with an aperture 7?.

c represents the ov en-bottom, forming a partition between the oven and broiling-chamber.

d and e represent, respectively, the oven and broiling-chamber doors, and, as shown in Figs. 1 and 2, these doors may be hinged to the vertical edges ofthe range at 2, so as to be arranged to swing open and'shut, and the lower edge of the oven-door d may be provided with a downwardly-extending projection or lug 3, which when the oven-door is closed is adapted to cover the aperture b, or, as shown in Fig.I 3, the oven and broiling-chamber doors `may be vpivoted at their lower corners in the frame of the range, as shown at 4, so that the doors may be dropped and raised in opening and closing the same, and the bottom of theoven-door may be provided with a'pivoted {iap 5, having suitable trunnions 6, which are adapted to be received in lugs 7, connected to or integral with the inner side of the oven-door d, (see Fig. 5,) whereby the flap 5, which normally covers the aperture Z2, may be swung upward to provide access to said aperture for igniting the burning mixture. The form illustrated in Fig. 2 shows that the lower edge of the oven-door may extend below and cover the aperture.

fand f represent, respectively, the rear and front burners arranged beneath the ovenbottom in the upper part of the broilingchamber. As shown in Fig. 4,*I preferably employ a flame-conveyer 8 and an extension 9 of the rear burner leading to the front burner and conveyer 8. An arrangement of this general character is shown and described in Letters Patent No. 698,009, granted April 22, 1902, to George W. Graves and-myself IOO for gas stoves or ranges. In my present arrangement the orifice end of the llame-conveyer 8 is provided with an eccentric flange 10, adapted to lit against the inner face of the division-plate a and provided with an opening for receiving a pin 11, integral with the division-plate a, so that when the parts are connected the orifice of the flame-conveyer 8 corresponds with the aperture in the division-plate a, or, as shown in Fig. 5, I may employ tubular burner extensions 12 13, such as shown and described in Letters Patent No. 698,010, granted April 22, 1902, to George W. Graves and myself forburners for bakingovens, in which instance the tubular burner extensions extend from their respective burners and have their closed ends brought adjacent to the aperture b in the divisionplate a. The burners ff are provided with perforations 14, through which the mixture of air and gas is emitted and at the orifices of which the mixture is burned, and the tubular burner extensions 9, 12, and 13 are provided with perforations 15, 16, and 17, respectively, by means of which the flame is conveyed from the front to the rear burner in one instance and from the aperture where ignition takes place to the respective burners in the other instance.

It will be understood that the aperture b in the division-plate a may be made sufficiently large to permit a visual examination of the condition or height of the flame or that other openings may be provided for this purpose.

I do not limit myself to constructing the oven-door with a iiap or extension, as the lower edge of the door may extend down, so as to safely clear the upper edge of the broiler-door e, as shown in Fig. 2, in which case the door will cover over the aperture. I also do not limit myself to placing the opening in the front plate between the oven Aand broiling-chamber, as the opening or openings may be placed at any point desired so long as they are covered over when the oven-door is shut.

I claim as my inventionl. In a gas-range having an oven, oven-bottom and lower chamber, and in combination, a front plate having an opening, an oven-door having a part extending over and covering said opening, a burner and a flame-conductor therefrom terminating at said opening.

2. In a gas-range, and in combination, an oven, a broiling-chamber, an oven-door, a division-plate in the front of the range between the oven and broiling-chamber having an aperture therein, a gas-burner located beneath the oven-bottom, a llame-conductor leading from said burner to the aperture in said division-plate, and means connected with the bottom of the oven-door for normally covering said aperture.

3. In a gas-range, and in combination, an oven, a broiling-chamber, an oven-door, a division-plate inthe front of the range between the oven and broiling-chamber having an aperture therein, a gas-burner located beneath the oven-bottom and having holes thereima flame-conductor having one end covering one or more of said holes and the other end opening into said aperture, and means connected with the bottom of the oven-door for normally closing said aperture.

4. In a gas-range, and in combination, an oven, a broiling-chamber, an oven-door, a division-plate in the front of the range between the oven and broiling-chamber having an aperture therein, gas-burners located beneath the oven-bottom and having holes therein, a tubular iame-conductor in communication at one end with said burners and at the other opening into said aperture, anda downward projection integral with the oven-door and adapted when the said door is closed to cover said aperture.

5. `A gas-stove having an oven, a burner for heating the oven, a casing surrounding the burner, an aperture in said casing communicating to the outside of the oven, a fiame-conductor extending from the burner to said aperture, a door on said oven and means whereby the opening or closing of the oven-door operates to open or close the aperture in the casing.

6. A gas-stove having an oven, a burner for I opening or closing of the oven-door operates to open or close the aperture in the casing.

Signed by me this 12th day of, November, Y

JOHN F. MILLS.'

Witnesses:

GEO. T. PINCKNEY, BERTHA M. ALLEN.

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