US969993A - Electric igniting device for gas-stoves. - Google Patents

Description

C. STAMM. ELECTRIC IGNITING DEVICE FOR GAS STOVES. APPLICATION rILnn MAR. 10, 190B. mmnwnn JULY 9, 1910.

Patented Sept. 13,1910.

2 SHEETS-SHEET 1.

anouwql G. STAMM.

ELECTRIC IGNITING DEVIOB'I'OR GAS STOVE-S.

APPLICATION TILED HAP-.16, 100a. Bnnnwnn JULY 9, 1910.

Patented Sept. 13, 1910.

' 2 SHEETS-SHEET 2.

UNITED STATES PATENT OFFICE.

CHARLES STAKE, OF MILWAUKEE, -WISCONBIN, ASSIGNOB OF ONE-TEIBCD TO JOHN J FALBE, OI MILWAUKEE, WISCONSIN.

ELECTRIC IGNITING DEVICE FOR GAS-STOVES.

' Specification of Letters intent.

Patented Sept. 13, 1910.

Application filed. larch 16, 1808, serial No. 421,313. Renewed July 8, 1910.; Serial No. 571,226.

' To all whom 'itima/y concern:

Be it known that I, 03am STAMM, a citizen of the United States, residin at Milwaukee, county of Milwaukee, and tate of Wisconsin, have invented new and useful Improvements in Electric Igniting Devices for Gas-Stovesof which the following is a specification.

My inventlon relates to improvements in electric i itin devices for as stoves.

. The ob ect of my invention 1s to provide a form of igniter which will be 0 erated from the gas valve and can be eas' y applied to to normal position and remain unaifected by the operation of closing the valve or by any intermediate adjustment for the purpose of regulating the volume of the flame.

' In the fol owing description reference is .had to the accompanying drawings in Figure 1 is a plan view illustrating my invention as it is applied to an ordinary gas stove. Fig. 2 is a side view of the same showing a portion of the stove and burner in section. Fig. 3 is a detail rear view of the igniter electrodes. Fig. 4 is a detail view of the igniter trip illustrating the different positions.

Like parts are identified by the same reference characters throughout the several views. V

1 is the common' service pipe of the gas stove from which branch 2 leads to the burner, the sup 1y of gas to each burner being controlle by. an ordinary valve operated bywa lever 3. I

5 represents one of the burners of the, stove.

The valve stem 7 is extended downwardly through the valve casingand is provided with a rigidly attached arm 9 which-extends laterally and downwardly from the end of the valve stem and has ointed connections at 11 with an adjustable connecting rod comprising slip jointed sections 13 and 15, the section 15 being socketed in the section 13 and secured in. any desired position of longitudinal ad'ustment by a set screw 17. The slipjoint tween the sections 13 and 15 allows the connecting rod to be lengthened or shortened to suit'the requirements of the different stoves or burners. The rear end of the connecting rod 15 has jointed connection at 19 with a slidin trip actuating bar 20, which bar isprovi ed with an upwardly projecting lug 21, the rear face of which is beveled while the front face extends vertically from the bar 20. The bar 20 is slidably mounted in bearing members 23 carried by a bracket 25 which is supportedfrom the pipe 2 by means ofa collar 27, the bracket 25 having a slotted arm 28 adjustably connected with the collar by a set screw 29, whereby a limited adjustment of the bracket, longitudinally of the pi e, is permitted independently of any possrb e adustment of the collar .27 along this pipe.

A fixed electrode 31 is en rted fromthe collar 27 on the opposite si from that to which the bracket 25 is connected. This electrode 31 is insulated at 33 from the collar and is provided with a binding post 35 for the necessary electrical connections. A

movable electrode 37 ismounted upon a swinging lever 39 which is pivoted to the lower end of the trip is in the path of the lug 21 and when engaged by the latter dlll? ing a forward movement of the bar 20, the lower end of the lever is pushed forwardly and the elect-rode 37 caused to make and break contact with the electrode 31 b striking the latter and then assing it, t eelectrode 37 being provided with the ordinary coiled sprin 47 which permits it to yield in passing t e electrode 31. As soon as the lug 21 is moved forwardly a sufiicient'distance to clear the trip 43, thelever 39 is restored to normal position by a spring 51, the ends of which are connected with the upper arm of the lever 39 and with the bracket arm 28 respectively. During this trip 43 which 1s pivotally produces agsecond.

spark. The above described means are secured by the operation of opening the gas valve which. causes the arm 9'to swingpforwardly caus- Zmg a corresponding pull upon the bar 20.

. When the valve-is closed, the lug'2l again especially trip may contacts. with the trip but the trip is free to yield rearwardly as illustrated Fig.

.4 and.- therefore doesnot actuate the lever 39', the latter being also invented from moving in this direction y a stop 53 ofthe bracket 25. A spring 55 is referably employed toinsure the restoration of the trip to Its; normal position after-the lug 21 has moved to the rear thereof, this spring being desirable for the reason that the p be covered with dirt or grease from the stove, sufiicient to prevent its moving freely by gravity.

It will thus be obvious that upon opening the gas valve, the trip lever 39 1s posltively actuated in one direction and produces an igniting spark as the electrode 37 makes and breaks contact withthe electrode 31, and

' that a second spark .will be produced during {terminals of ifixed electrode and through the frame; with the reactionary movement of this lever un-- der the tension oft-he spring 51 and after the lugl21 has passed the trip 43. The valve mayt en be moved to various ositions to regulate the flame without a ecting the igniter. When the valve is closed, the lug' 21 igniter, owing to the fact that the-trip isassesthe trip 43 without affecting the permitted .toflyield .freely in this direction underthe pressure of the beveled face of the lug 21.

61 represents a battery orother source of electrical energy and62 a spark coil.

63 represents the electrical conductors, the which are connected with the the movable electrode respectively.

I attach 'greatimportance to the use of the. slidingar andme'ans for actuating it below the gas supply pipe since this arrangement enables me to apply my invention to the rear burners 'Wlth the same facility as to those infro'nt, the only difference being the length of the-bar. The gas pi es is unobstructed, and these bars may t erefore extend directly from the valves to the tri is' mounted in s ding bearings on the trip supporting bracket, no special. adjustments are required to supportthe bar in its proper relation to any givenburner. I

' escribed my invention what Havingthus I I claim as new and desire to secure by Let tersv Patent is 1.-In an igniter of the described class, thecombinationwitha burner a as supply pipe therefor, andarfvalveffor safil pipe control ling the flow of" gas to; the burner, of' a set stem extending below' the pipe,

space below the mechanisms. As this bar bracket su sliding bar to the lever in one direction the upper-end of the lever,

of relatively movableelectrodes, operatively" located with "reference to the burner, and

connections for actuating said electrodes, at-. v tached to the gas valve, below the supply pipe; said connections including a long1tuo dinally sliding bar and a connecting rod formedin ad ustable sections, whereby the motion of the rotary valve may be transmitted to the bar and the distance lengthened' or shortened in correspondence with the 1 distance from the valve to the burner.

2. In an igniter of the described class,c the combination with a burner a gas supply pipe therefor, and a valve for said pipe controlling the' flow of gas to the burner, of. a set of relatively movable electrodes, operatively located 'with reference to the burnefland connections for actuating said electrodes, attached to the gas valve below the supply pipe, said connections including a spring retracted upri ht trip mechanism adapted to be actuated rom the valvein one direction only, and .a sliding bar operatively connectedwith -the valve and having a projection adapted to engage and actuate the trip mechanism durin the first portion of the inward movement 0 thebar'and to move past the trip mechanism during the final inward movement.

. 3. Inan igniter of the described class, the combination with ab'urner and a gas supply "pipefof a valve therefor provided with a an electrical igniter operatively located with referenceto' burner, a swingingarm'rigidly con-v 10g nected withfthe lower end of the valve stem, i a spring retracted trip mechanism for operating t e' igniter, and-a sliding bar op atively connected withthe swinging armand arranged to operate the trip mechanism 5 during its inward movement. f v

4. The combination with a gas sup ly pipe on and burner," of a pipe en agingfc amp, a fixed electrode supporte therefrom, ."a

bracket su orted from the clamp, a sliding 1 7 bar carrie y the bracket, a swinging lever, a trip arranged to transmit motion fromthe/ sliding bar to the lever inone direction only,-

aspri'ng arrangedto restore the lever to. normal position, an electrode mounted u on 1 5 the upper end of the lever, and a'fixed e trodel mounted on an insulating support in j the path of the other-electrode.

5. The combination witha gas supply, pipe and burner, of a pipe en aging clamp, a fixed electrode supporte therefrom, a gorted fromthe clamp, asliding bar carrie ythe bracket, a swinging lever, a trip arranged to transmit motion from the 11 y-,'125 a sprmg arranged-torestorc the, lever to" normal position, an electrode mounted u on and,a fixed ec- 'trodemounted on an insula'tin support in the path ofthe other electro c, sa d trip 13o comprising a one way oscillating member mounted on said lever in the path of a rojection on the sliding bar, together wit a spring arranged to restore said oscillating member to normal position 'after it clears said proj ection.

6. ii an electric gas igniter, the combination with a burner and the valve for controlling the supply of gas thereto, of an electrode secured near the burner, a pivotally mounted arm, an electrode secured to the arm, a spring adapted to normally hold the arm in position to retain its electrode out of engagement with the electrode carried by the burner, a pull rod secured at one end to the valve, the free end of the pull rod being disposed for engagement with the arm, and means adapted to retain the free end of the pull rod in en agement with the arm until the valve is fu ly opened.

7. In an electric gas igniter, the combination with a burner and the valve adapted to control the supply of gas thereto, of a bracket secured near the burner, an electrode secured to the bracket, a pivotally mounted arm, an electrode secured to one member of the arm, a spring adapted to normally holdthe arm in position to retain the electrodes out of engagement with each other, and a pull rod secured at one end to the valve, the opposite end of the pull rod being connected with the other member of said arm.

8. In an igniter of the described class, the

combination with a burner, a gas supply pipe therefor, and a valve for said pipe controlling the flow of gas to the burner, of a set of relatively movable electrodes, operatively located with reference to the burner, and connections for actuating said electrodes, attached to the gas valve,said connections including a spring retracted upright trip mechanism adapted to be actuated from the valve in one direction only, and a sliding banoperatively connected with the valve and having a projection adapted to engage and actuate the trip mechanism during the first portion of the inward movement of the bar and to move past the trip mechanism during the final inward movement.

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

CHARLES STAMM.

Witnesses O. R. ERWIN, LEVERETT 0. WHEELER.

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