US2152531A - Gas stove burner mechanism and igniting means - Google Patents

Description

March 28, 1939. J BROWNING 2,152,531

GAS STOVE BURNER MECHANISM AND IGNI'IING MEANS Filed Jan. 27, 1938 3 Sheets-Sheet 1 F 3 6&6 2/ y 1 6g 45 /0 2a 3 23 f (57 25 W 54 w 65-r-1 5r w Z |26 2a 4 k 55 56 K 55 57 i V I 26p 5/ I .45 M $6 1 Z gwua/wto'o J flBrownin g WHWESS March 1939- J. E. BROWNING 2,152,531

GAS STOVE BURNER MECHANISM AND IGNITING MEANS Filed Jan. 2'7, 1958 3 Sheets-Sheet 2 /6 w (55 57 4 I KJ I 4 6 4 grwcwvfob LT 17. Brown/72g WITNESS I I 74.10% 201M m 0 Mmh 28, 1939. 7 J. E. BRCWNING 2,152,531

' GAS STOVE BURNER MECHANISM AND IGNI'IING MEANS 3 Sheets-Sheet 3 Filed Jan. 27, 1938 J'- E Brow/n3 WrrwcSS PM Mar. 28,1939

'UN-lTED" STATE.

GAS s'rovi;

n'uarma MECHANISM AND damn GMEANS James'E. Browning, SanAntonio, Ten, assignor of one-half to Claude V. Birkhead and Werner -N. Beckmann. both of San Antonio, Tex, eopartners. doing business as Birkliead, Beckmann, Stanard a Vance I Application January '21, 19:8, Serial No.187i322 3 Claims. 01. res-11a The invention relates to anew andlmproved burner mechanism adapted primarily for use on gas stoves, although not restricted to this particular field of use.

burner is employed forv said main burner, and one object of the invention is to make novel provision for directing the gas and the primary air first to said igniting burner and for later in directing the gas and primary air to said main burner after lighting said igniting burner, causing said main burner to be ignited by the flame from said igniting burner. i

A further object is to provide a novelcombination of elements for insuring automatic lighting of the igniting burner when the gas and air are supplied to this burner.

With the foregoing and minor objects in view,

the invention resides in the novel subject matter hereinafter'described and claimed, description being accomplished by. reference to the accomanying drawings.

Fig. i is-a side elevation partly section. i

Fig. 2 is an enlarged vertical sectional view as through the valve mechanism and associated parts, in gas-oil position.

A main burner is provided, and an igniting Fig. 3 is a view similar to Fig. 2 but showing theparts positioned for supplying gas only to the igniting burner.

showing the parts positioned for supplying gas only to the main burner.

Fig. 5 is a vertical transverse sectional view on line 5-5 of Fig. 2.

of Fig. 5. i

Fig. '7 is a fragmentary front elevation as indicated by the arrow A in Fig. l. V

Fig. 8 is a detail vertical section through the main and igniting burners and the ignition means associated therewith.

Fig. 9 is a transverse section on line 9-4 of Fig. 4 is a view similar Figs. 2 and 3 but 7 Fig. 6 is a detail horizontal section on line 6-4 Fig. 1 showing the ignition switch mechanism.

and illustrating the induction coil, electrodes, wiring, etc. in diagram.

In the drawings above ferred construction has been shown, and while this construction will be rather specifically explained,- it is to be understood that variations may be made within the scope of the invention as claimed.

The numeral i0 denotes an air and gas mixer of substantially frusto-conical form, the front wall of said mixer being denoted at Ii and its briefly described, a prorear wall at l2. The front wall ii is formed with upper and lower openings l3 and I4 respectively, with a vertical slot l5, and witha horizontal primary air admission slot l6 communicating with said vertical slot. The rear wall I2 is formed with upper and lower mixture outlets ll, and I8 I with whichzthe fuel conducting pipes I8 and 2| of a main burner 2i and an igniting burner 22, communicate, said main burner 2| being preferably of annular form and theig'niting burner 22 being preferably disposed centrally below said 10 main burner. w

In-advance of the mixer-i0 is a flxedvalve body- 23 having a port 24 communicating. with the gas manifold 25 of the stove. The body 23 carriesv upper and lower gas discharge nipples 10" 28 and .21 respectively,.whichpass through the openings 13 and M in alinement with the outlets Hand it, each of said nipples 26 and 21 being preferably provided with "an adjustable tip 20 forcontrolling .thedischarge of gas. Ports- 29 and Ill in the body 23 leadto the nipples 26 and 21 respectively, -and'a rotatable valve member or plug 2| is mounted within saidbody to control communication between the gas supply-port 24 and said'ports 29 and 30, the port 3201 said 35 valve member or'plug 3| being provided with an end 33 registrable with the port 30 and with an end" 34 registrable with the ports 24 and 29.

' When the plug or the like St is in one position A-primary air directing plate 35 isdisposed in 40 r the air-and gas mixer l0 and extends from the rear wall l2 to-the front wall ll thereof, the rear edge of said plate35 being pivotally mounted as denoted at 36 to allow said plate to swing upwardly and downwardly between the inwardly 45 projecting ends of the nipplesfl 'and 21. A crank 31 is suitably mounted on the inner end of the plug or the like 3|, said crank passing through the slot l5 and being operatively connected with the front edge of the plate 35. 1 This operativeconnection is preferably established by bifurcating the inner end 38 of the crank 31 to straddle the plate35 loosely. The crank 31 is so positioned with respect to the plug :tl as to hold the plate 35 in the upper position of Fig. 2 56 (Fig. 3), it directs the gas only to the nipple 21 when said plug is positioned to cut off the gas from both burners, and to downwardly swing said plate as the plug is turned to successively admit gas to said burners. Thus, when plug 3| admits gas only to the igniting burner 22, plate 35 is positioned as in Fig. 3 to properly direct the primary air to said igniting burner 22, "and when said plug is positioned to direct the gas to the main burner 2|, said plate is positioned as in Fig. 4 to properly direct the primary air to this burner. The front edge of the plate 35 preferably moves almost throughout the length of the slot l5 and to positions above and below the slot I6. Thus, the air entering through these slots for mixture with the gas, enters below the plate 35 when the gas is entering below said plate, and above said plate 35 when the gas is entering above said plate, and the air will at all times be controlled according to the amount of gas being admitted, to insure perfect combustion. The plate 35 also performs a further function of preventing flow of gas to one burner when it is intended that it shall flow only to the other. For example, with the parts set as seen in Fig. 4 and the main burner 2| operating, the ascending current of hot airaround the burner 22 would tend tocreate a draft through the passage 20 were it not for the plate 35, and such draft would draw some of the gas'from the air and gas mixer l0 through said passage 20 to the burner 22, keeping the latter constantly lighted, during operation of the main burner 2|.

A dome-like perforated hood 39 of suitable metal is secured within the confines of the annular main burner 2| to receive the combustible mixture discharged from the burner 22, and two electrodes 40 and 4| are provided in said hood for igniting the gas when an electric spark is caused to jump between said electrodes. Electrode 4| in the present disclosure is grounded, and the electrode 40 is insulated at 42 from other metallic parts. described is mounted-on the operating shank 44 of the plug or valve member 3|, which shank passes throughthe usual front plate or panel 45 'of the stove and is provided with an operating knob 46. This knob preferably carries a pointer 41 cooperating with indicating means on the plate 45, said indicating means preferably consisting of the words Off, Light lighter, "Light burner" and On. The switch mechanism is such that when the knob 46 is turned to "Light to the burner 22, the switch mechanism'breaks the ignition circuit, and this circuit remains broken while the knob is being turned more or less toward "On position, according to the flame desired. The, switch mechanism is also preferably such that it will insure an open circuit for the electrodes 40 and 4| when the knob 46 is being retrogradely turned to cut off the gas to the burner.

One switch mechanism illustrative of many;

which could be used, is shown. Used with this switch mechanism, is the usual induction coil, the primary'winding ofwhich is, denoted at 49 and the secondary winding at 56. The switch mechanism preferably controls both the primary and secondary circuits and both oh them are,'

is grounded at 54 to the pin 52.

A switch mechanism hereinafter When the knob 46 is turned to itsof course, open when the knob 46 is in Off position, so that when the ignition circuit for any one burner of the stove is completed, it cannot complete the ignition circuit for any other burner, causing idle sparking at the spark gap thereof. v

A switch body 5|which may be considered as formed from insulation is fixed to the shank 44 of the valve member or plug 3 I. switch body 5| may be pinned at 52 to the shank 44. One contact 53 is carried by the body 5| and Another contact 55 is secured to the body 5| and is provided with a portion 56 exposed at the edge of said body, said edge being concentric with the shank One fixed contact 51 is cooperable with the contact 53, and another fixed contact 58 is cooperable with the contact 55, said contacts 51 and 56 preferably consisting of spring-pressed buttons or the like carried by metal strips 59 relatively fixed and movable contacts 64 and 65 of an auxiliary switch. The contact 65 is carried by a spring arm 66 pivotally mounted at 61 upon the, panel 45 and insulated from said panel. A vertically slidable actuating rod 66 is provided for the arm 66, said rod 68 being mounted in appropriate guiding means 69, being operatively connected at 10 with the switch body 5|, and

being provided with a lug 1| for operating the arm 66.

When the knob 46 is turned to Light lighter" position, contact 53 engages contact 51, contact The hub of this panel 45;

55 engages contact 58, contact 56 engages contact .63, and lug 1| swings arm 66 downwardly to-engage 65 with 64. Both the primary and secondary circuits for the ignition means. are

thus completed. .When the knob 46 is turned to Light burner position, 53 moves out. of contact with 51, 55 moves out of contact with 58, and 56 moves out .of contact with 63. At about the same time, the lug 1| snaps over the end of arm 66 and thereafter occupies aposition below said arm as long as the burner is lighted. When theshank 44 is being turned in a direction to cut off the supply of gas to the burner, the contacts 53, 55 and 56 necessarily sweep over the coacting contacts 51, 58 and 63, but before this movement, the lug 1| pushes upwardly on the arm 66, moving contact 65 out of engagement with contact 64, insuring an open circuit for the ignition coil to prevent idle snapping of a spark between the electrodes 40 and 4|.

The arm 66 and the lug 1| preferably cooperate in such manner that said arm bends sufflciently to allow said lug to snap past said arm after moving 65 into engagement with 64 or moving 65 out of engagement with 64, but

other suitable provision could of course be made while preferred features have been disclosed, attention is again invited to the possibility of making variations within the scope of the invention as claimed.

I claim:

1. In a burner mechanism, a chamber having a primary air inlet, a main burner having a gas conducting passage in communication with said chamber, an igniting burner for said main burner also having a gas conducting passage in communication with said chamber, a gas valve having jets for directing gas across said chamber into either of said passages, a primary air directing plate movably mounted in said chamber for directing the primary air into either of said passages according to the passage into which the gas is being directed, and connecting means between said valve and said primary air directing plate whereby the latter is operated by the former.

2. In a burner mechanism, a chamber having a primary air inlet, a main burner having a gas conducting passage in communication with said chamber, an igniting burner for said main burner also having a gas conducting passage in communication with said chamber, a gas valve having jets for directing gas across said chamber into either of said passages, said gas valve having a valve member turnable in one direction to successively direct gas to the igniting and main burners and turnable in the other direction to shut off the supply of gas, a primary air directvalve member and operatively connected with said air directing plate for operating the same.

3. Ina burner mechanism, an air and gas mixer having a front wall formed with upper and lower openings, with a primary air inlet and with a vertical slot, said mixer having a back wall 1 formed with upper and lower mixture outlets alined with said openings of said front wall for conducting combustible mixture to two burners, a gas valve having upper and lower gas'discharge nipples passing through said upper and lower 1 openings, said gas valve having a rotatable plug for directing gas to either of said nipples, a primary air directing plate in said mixer extending from said back wall to said front wall and pivotally mounted at its rear edge to swing vertically between said nipples, and a crank on the inner end of said plug, said crank passing through said slot and being operatively connected with the front portion of said primary air directing plate, said crank being operable to swing said .plate downwardly when said plug is rotated to dis charge gas from said upper nipple and to swing said plate upwardly when said plug is rotated to discharge gas from said lower nipple.

JAMES E. BROWNING.

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