US987458A - Regulator for gas-stoves. - Google Patents

Description

C, HARRIS. BEGfFLA'rOR PoR GAS sTovBs. APPIIUATION FILEDMAY'ZL, 1910.

Patented Mar. 21, 1911.

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. is removed, thus preventing the needless stove embodying my invention. llig. 2 is o nnrrn i .i mriirnuwrmu @einen il l ES S. HARRIS, 0F MIELWUKEE, WSGUNSEEL ASSXGNOR 0F ONE-THIRD-T THOMAS E. SELLER' AND ONE-THIRD TO ADDLPH H. CHROMASTA, BOTH 02" ilil- VTAS'KIIEE,l WlSCONSIN.

REGULATOR FOR GAS-STOVES.

Specification of Letters Patent.

Application filed May 24, 19m.

lintonterl hier.; 2i, iiiilil.. Serial No. 583,??(3.

To all whom it may concern:

Be ,it known that l, CHARLES S. HARRIS, o citizen or' the United States, residing nt Milwaukee, in the county of Milwaukee und State of 1Wisconsin, have invented new nud useful improvements in Regulators for Giur Stoves, of which the. following is o specification.

rihis invention relates to controllersfor the burners of ges stoves,a the object being to provide simple end effective means for letting on the full iiovv of gas when o cool;- ing vessel or other object to be heated placed in position und reducing or cutting oii the iiow of gus when thel vessel or object Waste of gas when the burner is temporarily out of use and a full flow of gas is not required.

A. further object of the invention is to provide asimple and effective menus for innintaining u reduced ilmne so ns to avoid the. necessity of frequently rclighting the burner when the same is thrown into und out of operation at compurutivelj,T short intervals.

The invention consists ot the tentures of construction, combination undv arrangement of parts hereinafter .fully described und claimed, reference being had to the acconiponying drawings, in which Figure l is a sectional elevation oi :i gos vertical transverse section on line Q-Q of Fig. l. Fig. 3 is o horizontal section taken substantially on line 3-3 of lFig'. l.

Referring to the drawings, 'l designates n portion of o gos stove or range of :my suitolole construction, which may be provided with any desired number of pot-holes und burners; but es they are ell :alike in construction, the illustration und description are limited to a singlepot-hole and burner.

2 designates the pot-hole, 3 the grid or `grating which supports the cooking vessel in position and like burner n ranged below the grid. The burner is in communication with o. mixing tiiloe 5 having. the usual nir inlet 6, intol which extends o gas supply fixture or pipe 7 lending from n gas service pipe, seid pipe or -irture'i lacing provided with the usuel nipple 8 through which the gas discharges into the mixingtulae. l'n the pipe. or fixture 7 is arranged o stop coclr 9 for cutting oi or regulating the flow o gas,

which cock is mounted to turn in n casing l0 into which the pipe or fixture 'l extends, or which forms n port of the said fixture.

Arrrunged for vertical movement in the pot-hole 2 is a depressible controller c'omprising a pusher head il mounted upon the upper end of o stern l2 slidalile through n guide tube 13. This tube i3 is disposed in the central opening i4 of the annuler burner i und extends through o. 'perforation in e. supporting' bnr l5 carried. ley tlie burner. Abo-Je the bnr the tube is formeel with. e. shoulder 16 to :rest thereon, and the lower end of the tube is tlireodefl, ns :it li', to re-y ceive o clamping nut i@ oriented to loner against the underside oi tlie hor to draw the shoulder intocleniping engagement with the upper suriiiee of the loer, whereby the tuloe is detncliaoly secured position.

The lower end of tie stem l2 is provided with n iiorlr or saddle lll haring u. iriction roller 2G journnled therein. This rorlr or saddle strnddies the normal approximately horizontnl arm of n loell eronl: lever 2i which is engaged hy the friction roller, the other or norinnlly substantially rerticni erin of the seid lever being provided with n longi tudinol series oli perlorntions ilillien cooking vessel is placed in position upon the lfrid und nhove the pot-hole, it cornes in contact with the depressiiile heed li und forces.

the lutte' flown ilush with the top the stove, thereby connnunicntingr friction to the hell crank' lever Upon ie reiiit inl oi the pf orfressel, the jour-ls rie lieu nre re turned to their normal position Toy ineens hereinafter speciied, the friction roller 20 pro riding' for the easy relative ploy between the saddle sind hell crunk lever to allow the seine to hure unrestricted inmfeinent Without. y

transverse '.ieefl port 25.. with which connu inunicetes e feed groove QG. lllien the parte are in the normal position es above described,

the Jort 25 extends verticnllv and ii: :closed by the upper and lower Walls ofthe casing l to prevent' the passage of gas to the burner. A tube 27 extends from the casing to the top of the burner 4, and is pro.

vided atv its end adjacent said burner with aburner tip or pilot burner 28, the end of thetube fitted in the casing l2 at all times registering with the groove 26 irrespective of the position of the valve 23, so that there is a constant supply ot' gas to said tube in order to enable the pilotlight to be kept constantly burning.

The larger end of the valve 23 carries a depending lever arm 2.() provided with a lon gitudinal series of openings 30. This arm 29 is connected with the depending arm of the bell crank. lever 21 by :j connecting rod or link 3l secured at its oppositeends re spectively to the bell crank lever and valve arm by pivot screws or bolts 32 and pass ing through any one et' the series of openings in the respective lever arms. The connecting rod or link is thus adjustably con-' nected to the lever and lever arm so that a degree of motion imparted to the valve 2l under prescribed degree of movement of the depressible member 1l may be regulated to either entirely cut o'll the supply of gas to the burner when the vessel is removed and the depressible element is in normal position, or to reduce the flou' of gas to any desired extent to leave just enough gas burning at the burner outlet to avoid the necessity of lighting the burner each time a pot or vessel is placed in position. A coil spring 3st surrounds the enlarged end of the control.

' ling valve and is fixed at one end 'to the casing l() and at the opposite end to the lever arm 9. This spring is tensioned by the opening movement or the valve when the depressible element is depressed, so that when the weight of the pot or vessel is removed from said element the spring will react and close the valve and restore the loperating parts to normal position.-

A. needle valve or regulating screw 35 eX- tends at an angle through the casing and into the valve 23 with its tapered end arranged to control theleed Vof @as from the groove 26 to the adjacent end olT the tube 27, whereby'the amount of gas supplied to the pilot burner may be conveniently regulated.

From the foregoing description. taken in connection with the drawings, 'the construction and mode of operation of my improved gas stove regulator will be readily understood, and'it will be apparent that after the pilot burner 28 is lighted the burnerwill be primed for operation so that when the pot or vessel is placed in position the weight of the same will depress the head l1 and effect the opening of the valve 23 for the supply or gas, which will be lighted by the llame from the burner 28. When the vessel'is removed the valve will be adjusted to entirely @swine of the burning of gas when the burner isnot in use and saving of time in relighting; a very important feature especially in restaurants, lunch houses, boarding houses, etc., Where cooking utensils are constantly being applied to and removed Jfrom the burner.

Having thus described the invention,`\vhat l claitn as new, is

l. In a regulator of the character described, the combination of a burner having a central .opening provided With a horizontal partition torino( with a threaded opening therein, a nido tube provided at its base with a shou der resting on said partition and a threaded stem engaging said threadedE opening and projecting below the partition,

a clamping nut engaging said stem, a def-4 pressible element provided W1th a stem exfl tending through and slidably mounted in,

said guide tube, said stem being provided at its lower end Wit-h a fork, a friction roller adjustably mounted for rotation in said fork, a bell crank lever having one of its arms extending through the fork, and engaged by said friction roller, a rotary valve controlling the tlow of gas to the burner, a` lever arm connected With the valve, and a link lconnecting said lever arm With the other arm of the bell crank lever.

2. in ak regulator of the character described, the combination of a burner, a guide tube carried by the burner, a depressible ele# ment having a stern slidabl mounted in and projecting below said `gui tube, said element having, at its lower end, a fork, a friction roller journaled for rotation in the arms of the fork and adjustable to different ele-A vations therein, a bell crank lever having one of its arms extending through the 'fork and engaging said friction roller, a rotary valve governing the flow of gas to the burner, a lever arm connected with said valve, a spring for normally holdin the valve in closed position, and a link adjustably connected at one end with `one arm of the bell crank lever and at its opposite end with the said lever arm.

3. In a regulator of vthe character described, the combination of a burner having a source o't gas supply, a depressible element ,tion with the passage therein through said for communication with said passage and arms engaging said dcpressiblc element, and y provided in its periphery with n segmental a link adjustably connected at one end with groove intersecting one end of said port, a the other arm of the bell crank lever :1nd :it spring for normally holding the valve i its opposite end with the lever arm. 15 5 closed, a pilot burner tube connected with In testimony whereof I affix my signature' the'valve casing and always in communicain presence of two witnesses.

- 4 segmental groove, a set screw mountedupon 'CHARLES S' HARRIS' the casing' end having a tapered end to enter Witnesses: 10 the groove, a lever arm connected with the GEO. T. SMlTH,

valve, n bell crank lever having' one of its ARTHUR G. HENSEL.

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