US1425975A - Valve for gas stoves - Google Patents

Description

w. J. KENNEDY.

VALVE FOR GAS STOVES. AEPucAUoN. FILED FEB. 12, |920.

l ,42 5, 975 Patented Aug. 15, l1922.

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ATTORNEY DiorEn STATES PATENT GFF-ion.

WALTER JQKNNEDY, on 'cLEvELaNn omo.

T0' all, whom z'l may Concern.'

Beit `known thatl, .VVAIJr'ER` J. KENNEDY, a citizen of the United States, and resident of Cleveland, in the county of Cuyahoga" anti State. of Chio; haveinvented certain said mechanism actuated bythe agency" of the. cooking utensil as it is.y put upon the grating or cover over the.- burner. This mechanism is also.Y designed to operate auf tomatically to lclosey the valve and shut oil the gas when the cookingL utensil is removed.

yly irther object of the yinvention is to provide valve operating rnechanisn1, Whichv can not only be actuated bythe agency of -l l the. cooking utensil when placed upon'the stove but which yis so constructed thatv it can be, operated at any time byhand in the manner of an ordinary` valve, .if soA desired.

The invention includes a spring pressed movable valve operating member, and a horizontally movable arm, which projects over thestove grating. orcover, .and which is. moved by the ac tionof a cooking utensil whe-nplaced upon the stove@` This arm is operatively connected y'with the spring which retains the valvefand valve loperating member inthe closed position, and' a releas# ing spring opens the valve when the pressure thereon is removed.y e

It includes a (separate controlling means for the val-veoperating member, permitting the operation of the' valve independently of the aforesaid arm, and also4 serving-as a means for positively controlling` the movements of said valvel andarm. l

' In the accompfanyiyngl drawings Fig'. l is afplan of avgas stove showing the improved burners Fig. 2- isf a vertical central section specification of Lottesrate'o dlosifrgllv ',Sprihe Fig'. 5 is o veeel .confia y PatentedAufglzfl;'1922. application med February 12, 1920. vserial36.3.58,246. u

section" of a' 'modified form ofvalve; F 6

is a detail sectionI of the` valve .for theA pilot light.-

casing ofthe buiij1ei-"va1io,'13 is a noodle y valvel and C 1s the'valve seat which 'is lengt manually movable in the Horizjootarpassage D the valve casing",` y to 'regulatetlie amount of pressure of he ggas. lEl is an el# bow." shaped-member toI which the valve 'is I' attached. l This member E, moves horiz'jofnQv y any or laterally `of the vortioalportiohoi the casing, andthe horiz' )nta'l` arm F, n'ovs geologie in the horizontal opor-riso Screw thra'dd controlling fStGI'l. H5 more? ble in., projection I upon the oasnggoppo:

site 'the l.valve 'and'f above the manifold Z shioh supplies gas toall, tholbuniorsof the stove. The part F 'of the'vallve i 1 being raised above the manifold 'Z,"can be j adjusted through the 'casing' 'instead of through the manifoldrZ rwhich wuld'b'e necessary' 'f the Suppen ,were entirely; 'wri The construction for Vthfi's i.;

by -meai'is'H of the pin" J. positioned in? the v opening K in thev arm F. VThe amount j the movement ofthe valve'is regulatedxhy means ofkthis stem. a i

The valve'is normally held in the closed position by, mea-ns ofthe flat spring M, shown in Figs. 2 and 4, which is adjustably pressed against. they valve supportin inern` ber. E, by means ofthe screw plug O is aV fv-.ulcrum pin over which the spring bent to provide the l required- `pressure.` spring Mis .slotted at `Pto permit .it to strad'dle the elbow shaped 'valve supporti Y j At Q, is shownan arm which extends over the stove lgrate orcover andwhich is moved aside yas the kitchengutensil is put upon the stove.r This arm rotates the verticalpinor v;

stem R, in the casing A, f and at .its lower end the eccentric projection S engages --the flat springl M and moves .it back to' free the valve-support vF from lits pressure. Immo,.-

diately the releasing spring'l pushes back 55,: In these views Afis the vertical body or the valve and permits the gas to flow, the amuont of pressure and the iiow of gas being controlled by means of the screw stem previously' described. When the cooking utensil is removed, the action of the flat spring M, Will return the arm to its normal position, permitting the Hat spring, the pressure of Which is greater than that of the releasing spring, to close the valve. A pilot light is, of course, necessarily burning from the feed pipe, V, and is controlled by means of the valve W. c

In Fig. 2, the valve is'shovvn adapted t0 control the pressureot the gas, before it enters the mixer. In F ig. 5 a simple valve is shown an additional regulator X, must be used, or it must be proportioned for a predetermined pressure.

rl"he above described valve can be operated in either of ltwo ways; first, automatically by means of the horizontal arm Q. This arm can be moved accidentally or .intentionally beyond the valve closing position Without causing any damage to the parts or addi-` tional fiow of gas because the ,spring M Will permit it torevolve at Will. This makes the device safe for general use. Second, the valve can be controlled Wholly by means ot the stem H, by means oi which, and the ,transverse pin J, the valve can be opened by hand if the arm Q should become broken.

It is understood that the utensil is employed as an implement to move the valve arm from one side to the other but may be often placed directly upon the arm by accident. l i i i Thisis more likely to occur since in ap Aplicants former Patents Nos. 1,217,955;

1,190,656;1,1442,209; thevalve was operated in this manner and anyone accustomed to the usev of the former valve would be more than likely to do so again.

For this reason the valve operating arm Q, is constructed of thin spring met-al so that it Will not become bent or broken.

Having described the invention what ,l

claim as new and desire to secure by Letters Patent is:

j 1. rThe combination with the inlet valve of a gas stove burner, and valve casing therefor, of a swinging arm movable horizontally over said stove, and pivoted in said valve vcasing vand means operatively ronnecting said arm and valve for opening` said valve When said arm is swungupon its pivot,

2. T he combination with the inlet valve of I'a-`gas'stove burner, and valve casing thereffor, of a swinging arm movable horizontallv 'over' said stove, and pivoted in said valve casing, and means 'operatively connecting said'arm and 'valve for opening said valve When said arm is swung uponits pivot, and

automatically acting means for returning said valve and arm to their 'former positions.

Ina valvefor the burner of a gas stove in combination, a valve and casing therefor, a spring for normally closing said valve, a swinging arm horizontally movable over said stove and pivoted in said casing, and means on said arm for engaging' said spring, to Withdraw said spring When said arm is swung vupon its pivot; said spring serving to return said valve and arm to their original positions when said arm is released.

Il. 1n a valve for the burner oit a gas stove, in combination, a valve and casing-therefor, a spring for normally closing said valve, a swinging arm horizontally movable over said stove and pivoted in saidcasing, and means on said arm for engagingk said spring to Withdraw said spring when said arm is swung on its pivot, a spring Yfor opening said valve When said iirst mentioned spring is Withdrawn,` said first mentioned spring serving yto closer said valve and to return said arm to its original position When said arm is released, l l p 5. In a device for controlling the How of gas to a gas stove burner, in combination, an inlet passage leadingito the burner, amovable closure Yfor controlling the ovv oigas n ing arm, a pivot Atherefor in said casing, en-

ineanson the pivot of said arm, for said spring, engaging means operating to Withdrawv said spring When ysaid arm is moved from its normal position, a releasing iu'ie'an's for said valve, and support,"and adjustable means for vcontrolling` the amount oit movement of said valve and support, in-

depe'ndentlyoit` the movement ofvsaid arm. 7. l'n a valve ,tor the burner of a gas stove, in combination, a valve andcasing, a supporting member for said valve in said casing', a spring- .for normally closing said valve, a screw threaded stem,a projection from said valve'support longitudinally movable in said stem, and means for limiting the movements of said projection in said stem.

8. l'n a device for controlling the flow of to a gas-stove burner, in combination, an inlet passage vleadingto the burner, a movable closurev forcontrolling the iiow of gas through said passage, a spring for normally retaining` said closure in closed position, a swinging arm engaging means operatively vconnected `with said'swinging arm i'orI Withdrawing said spring,- and a releasing spring constructed to remove said closure, when the .rst mentioned spring isv Withdrawn.

.9. The combi-nation .With a valve for the 1,425,975 l f vg?,

burner of a gas stove, and Valvey casing In testimony whereof; I hereunto set-my therefor, of a yielding horizontally sWingliind this 10th day of February,fl920.

ing `arm movable horizontally over Said stove, and pivoted in said valve casing :inclV WALTER J' KENNEDY' means operatively connecting Said arm, and ln presence of: 1 valve for opening said valve When said arm WM. M. MQNROE, y is swung upon its pivot. CEAS. F. SIvPE.

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