US1823538A - Gas stove igniter - Google Patents

Description

Sept. 15, 1931. E, F GEHRG l y1,823,538

GAS sTov'EI IGNITER Filed NOV. 25. 1929 A v i INVENToR. 4044 5f.

ATTORNE Patented Sept. 15, 1931 UNITED STATES PATENT oFFlcE' EDWARD F. GEHRIG, OF GROSSE POINTE PARK, MICHIGAN, ASSIGNOR T0 DETROIT- MICHIGAN STOVE COMPANY, OF DETROIT, MICHIGAN, A CORPORATION OF MICHI- GAN GAS STOVE IGNITEB Application led November 23, 1929. Serial No. 409,373.

The present invention relates to gas stove igniters and more particularly to the burner portion thereof.

Heretofore, it has been customary to provide the usual gas cooking range with a plurality of burners arranged as a rectangle and provide at the center of the rectangle a small constantly burning llame, which upon manipulation of a suitable valve, is expanded to produce a plurality of rather long jets extending over to each of the burners proper so that the latter may be lighted without the n'ecessity of using a match or other outside ai The present invention relates to devices of this same type but relates more especially to the burner head for the igniter. Among the objects of the invention is to simplify the construction of such burners.

Another object is to provide a burnerof simple construction which shall be diflicult to blow out or which will remain lighted under adverse draft conditions.

Still other objects will readily occur to those skilled in the art upon reference to the following description and the accompanying drawings in which Fig. 1 is a plan view of a gas stove illustrating the location and operation of the igniter.

Fig. 2 is a side elevation, with parts in section, of the igniter and gas valve.

Fig. 3 is a section on line 3-3 of Fig. 2.

In the drawings, a gas stove or cooking range of conventional type is shown in Fig. l and having four cooking burners 10 supplied with gas from a main 11 and controlled by means of the several valves 12. Also supplied with gas from the main 11, `is the igniter indicated, as a whole, at 15 and supplied with gas through pipe 16 controlled by valve 17.

Fig. 2 shows, on an enlarged scale and partly in section, the igniter 15 and the valve 17 As shown in this figure, the igniter burner comprises a tube 16 having near its end a bend or loop `20, the sides of the loo being bent back toward each other, the en 21 of the tube s closed and sealed in any suitable manner, such as mashing flat and soldering or brazin if desired. At the point where the loop si es approach each other, four holes 22 and 23 are drilled, one hole 22 and one hole 23 being on the one face of the loop and the other two holes on the other face thereof. These holes are so drilled that the holes 22 lie above the level of the holes 23 and are drilled at an angle to the face of the loop so that jets from the four holes do not interfere with each other and will project toward the four burners 10 when a plentiful supply of gas is present.

Arranged above the loo of the burner proper, is a frusto-conical eflector 30 preferably supported on the pipe 16 by means of a clamp portion 3l and provided at its upper or apex portion with an opening 32, being wide enough at its bottom to overhang the jets 22 and 23. This deflector by concentrating the heated draft rising from the constantly burning jets up through the opening 32 causes sufficient deection of laterally flowing air currents to prevent blowing out of the jets except under the most adverse conditions.

The igniter burner just described is connected, as stated above, throu h pipe 16 to the gas main 11 and is contro led by means,

of the valve 17 shown in section in Fig. 2. It will be noted that there is a through passage 40 extending through the valve to the pipe 16 being contracted, or of small cross section intermediate its ends, as indicated at 41, and this smaller portion of the passage is controlled by means of the valve 42. This passage is constantly open and provides a regulated small amount of gas for the constant burning of the igniter. Near its inlet end, the passage 40 also connects, through a large passage 43, with the valve chamber 44 closed by means of the valve 45, which latter. is held closed by the spring 46 but may be opened by means of the button 47 so that the large end portions of passage 40 may be connected through the passage 43 and chamber 44 to supply a large amount of gas to the burner whenever the valve 45 is operated.

In operating the device, it must be assumed that the small jets 22 and 23 are burning, gas for this purpose passing through passage 40-41, and it 1s deslred to ignite one of the burners l0. The gas is turned on to the burner 10 and the button 47 depressed to admit the larger supply of gas through passage 43 and the valve chamber 44 to theigniter 15. When this is done, the small pilot jets will be expanded to make jets of suflicient length to ignite any one or all of the burners 10.

Now having described the invention and the preferred forms of embodiment thereof, it is to be understood that the said invention is to be limited, not to the specific details herein set forth and illustrated, but only bythe scope of the claims which follow.

I claim:

1. An igniter for a multiburner gas stove, including a tube having a closed end and bent near said. end into a U loop disposed in a vertical plane, the loop having jet openings provided on its inner sides adjacent the point where the sides of the loop approach each other, there being as many jet openings as there are burners which are to receive their ignition from the igniter.

. 2. An igniter for a multiburner gas stove,

including a tube having its end closed and bent into a vertically disposed U loop with the sides of said loop approaching each other, the loop having jet openings provided on its inner sides adjacent the point where said sides are nearest, the axes of said jet openings being arranged at angles to the face plane of said loop and at different levels, whereby interference is avoided.

3. An igniter for a multiburner gas stove, including a tube having a closed end and bent near said end into a vertically disposed j U loop having jet openings provided on its inner sides adjacent the point where the sides of the loop approach each other, and a draft deflector mounted above said loop.

4. An igniter for a multiburner gas stove, including a tube having its end closed and bent into a vertically disposed IU loop with the sides of said loop approaching each other` the loop having jet openings provided on its inner sides adjacent the point where said sides are nearest. the axes of said jet openings beine' arranged at angles to the face plane of said loop and at different levels. whereby interference is avoided, and a conical draft deflector mounted above said loop.

5. In a gas stove having a plurality of spaced substantially co-planar burners connected to a manifold, a device for projecting liames into proximity with all of said burners simultaneously, said device including a tube .connected to and projecting from lsaid manifold, the tube having a closed end positioned at the point of intersection of lines connecting the various burners, the closed end being bent in a vertical plane to form a U loop, and having minute pilot apertures on the inside of the loop corresponding in number to the number of burners to be ignited by the igniter, the apertures facing the burners and being arranged at different levels to prevent interference between iames emerging from the apertures, the tube being provided with a valve normally permitting the iiow of a small quantity of gas from said manifold thru said tube, but operable to increase the flow, when desired.

6. An igniter for a multiburner gas stove, including a tube having its end closed and bent into a vertically disposed U loop with the sides of said loop approaching each other, the loop having jet openings provided on its inner sides adjacent the point where said sides are nearest, the axes of said jet openings being arranged at angles to the face plane of said loop and at different levels, whereby interference is avoided, there being as many jet openings as there are burners which are to be ignited by the igniter.

7 An igniter for a multiburner gas stove, including a tube having a closed end and bent near said end into a vertically disposed U loop having jet openings provided on its inner sides adjacent the point where the sides of the loop approach each other, and a draft deflector mounted above said loop, there being as many jet openings as there are burners which are to be ignited by the igniter.

8. An igniter for a multiburner gas stove, including a tube having its end closed and bent int-o a vertically disposed U loop with the sides of said loop approaching each other, the loop having jet openings provided on its inner sides adjacent the point where said sides are nearest, the axes of said jet openings being arranged at angles to the face plane of said loop and at diderent levels, whereby interference is avoided, and a conical draft deflector mounted above said loop, there being as many jet openings as there are burners which are to be ignited by the igniter.

9. In a gas stove having a plurality of spaced substantially co-planar burners connected to a manifold, a device for projecting flames into proximity with all of said burners simultaneously, said device including a tube connected to and projecting from said manifold, the tube having a closed end positioned at the point of intersection of lines connecting the various burners, the closed end being bent in a vertical plane to form a U loop, and having minute pilot apertures on the inside of the loop corresponding in number to the number of burners to be ignited by the igniter, the apertures facing the burners and being ar- EDWARD F. GEHRIG.

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