US824935A - Safety-valve for gas-pipes. - Google Patents

Description

PATENTED JULY 3, 1906.

A. W. JENOZEWSKY. SAFETY VALVE FR GAS PRES.

APPLICATION FILED JULY 3. 1905.

- Umm ESTATES] PATENT onirica.

sA'FTY-vALvr- Fon GAS-PIPES.

l I specification f Letters Patent. ipplimion ned Jurys, A1905. seria-i rofzean.

Patenten Jury 3, 1906.

.To all Hmm i6 may concern; l

Be it known that LADOLPH W. JENc'zEwT SKY, a citizen ofthe United States, and a resi-V dent of Chicago, in vthe/county of Cookand State of Illinois, have invented certain new and useful Improvements in Safety-Valves lfor Gas-Pipes; and Ir do hereby declare that the fol owing is a'full, clear, and exact description thereof, reference being had-tov the accompanying drawingsfandto the letters of reference 'markedvthereom which form a part of this specification. f'

' This" invention relates to an'eleotrically l, actuated safety-valve intended to be applied to asu ly-pi for illuminating-gas at. a point a ous'e'onbuilding for closing the pipe against the passage of gas from the inafter describedand pointed outin'the apmain 1n case a fire occrswithin said house or building and Whichis adapted for operai which communicatewith the pipes A A.

tion from a point distant from the valve.

My invention consists in the matters here.

' pended claims. J

f In carryinggny invention into practice I provide the gas-supply (pipe Within the'lcellar' l mg, between the gasor basement of. the buil c meter and theipoint Where the pipe enters the building, with a valve having a movable -partor closure which has aten l ency to :issumea closed position, togetherwithmeans for holding the valve4 normally .in `its open position, embracing a supporting member or element which constitutes part of an electric circuitl and which isadapted to y-be heated when the circuit is closed therethrough to effeet the release of the'closure, said circuit be ing normally openfbutadaptedtobe closed bythe use of aswitch located at' an easily- L accessible supporting. member of Side of the uilding and which may fte closed in case of-re Within thegbuilding.

` While an apparatus embracing themain or boadwtures of my invention may be embodied in constructlon in Whichtheelectric current is employed to. reliease-the"valve c losureotherwisefthan b the fusing ofthe t e. electric current, lyet theform of construction embracing such j fusible supporting member is preferred, b'ef the absence of mechanically-acting parts in cause of simplicity in-construction, due to the supportingand'releasing means. I also prefer a form of construction embracing a supporting member adapted to be fused by an electric current, for the reason that the 'fusible supporting member .itself Will be -valve-.casin valve-cham er B', one end ofwhic 1s shaped .chamber and is lace the -buildinr ''r out-.-

finally fused in' case iirc'should reach the valve, so that the valve will close automaticaily in case oi fire in the neighborhood of the valve whether the electric releasing device be brought intooperation or. not.

As illustrated in the accompanying drawin s, Figure .1. isa view' -in central longitudina section of a valve embodyingV my invention. Fig. 2 is a horizontal section thereof,

' taken upon line 2 2'of Fig. i.

' As shown in the said drawings, A indicates a pipe leading from a gas-main, A a pipe leading to a meter or toward the distributing-pi es'of the building, and B a 'valve-casing W "ch connects the pipes A A.- Said B has a transversel -arrangred tocon'stitute a tapered valve-seat. In Ysaid valve-seat are formed lateral ports b b',

'O-is'a valve-plug of conical form, which is movable endwise in the valve-chamber and is: adapted to. fit within the conical part oi said chamber'in such manner Aas toclose the ports .b b or to be shifted into the otherpart ofsaid valve-chamber to effect the opening of said ports; Said -valve-plug is so constructed as to-have'a tendency to assume its closed position either by gravityor other- In the particular construction' shown the valve-chamber B is arranged with its central 4axis'upright and the valvefplug is adapted to be supported in the upper part of said valve-chamber, sothat it will tend to its closed position.

D is a cap which closes the top' of the valvepreferably connected with the v lve-casing by screw-threaded connec- D is azscrewcap. closes the lower end of the valve-chamb er. l

gaged withthe said loop c, and a fusewire F,-

v.Supporting means for holding the valve.

-fallby gravity'to the lower part thereof or to Which is provided at its ends with insulated supports land engagedtbetween its: ends with the said link- The supports lfor-.the ends off the fuse-Wire, asherein shown, consist of two rods G G', which extend-through the cap D of the casing and are insulated from the same by means of bushings g g of insulated material. Said rods G G are shown as provided at their innerends With binding-screws TIO g2l g3, by which the'e'nds the fuse-wire nia'y 'be readily -clamped to the rod. The outer ends of therods are also provided with binding- Screws `g4 g5, by which 4conducting-Wires f construction 'prevents any turning of the io binding-screws'bythe fingers and requires a special tool for operating the same, thus preventing unauthorized tampering with -the electric connections.

The Wires'H H', rods G G', and the fusewire F constitute parts of Aan electric circuit. `Current forsuch circuit may be` supplied by any suitable generator-as, 'for instance, by batteries I I. The circuit will include a switch'for closing the saine, as indicated in 2o the drawings, bv a key' J, which stands normally open. The switch or kevmaybe lcated at an) easily-accessible point-as, for

- instance, in a box at the exterior of the build? mir n. which ma) be opened by firemen for the purpose of closing thel switch and releasing the valve-closure.

.Thefva ve constructed as described will not 'onl be adapted for.thereleasc of the closure an( closing'of thevalve through the fusing of 'the' kl7use-\vii*e'F by an electric current, but also automatically by the presence of the heat in the immediate neighborhood of the fvalve. It follows ythatjn case the valve-cas be .subjected to a high degree of heat` as fromafire in i'ts'immediate neighborhood, the fuse-wire will meltlandvthe valve-closure lassumeits closed position if there should be 1 no persoii present to operate the switch in `the electric circuit or should the electric circuit be broken or out of order'.

To further-insure the prompt closing `of the valve in case of fire -in' its 'immediate neighborhood, I pi'efer to make the su porting- -link E-of readily-fusible metal, suc as lead. `.\Ioreover, if the said link be made of fusible metal the wire F, hereinbefore termed the "fuse-wire, need not necessarily be of such character as to he actuallyfused or, melted by the current passing therethrough, but nei-dimly be raised to such temperature asto effect the melting of the link, when the closure will be released in the saine manner as though the said wire l" were itself fused b v the current. in othersioi'ls, the wire Fmayconsist of wire having such resistance to the passage ofa the current that it will be heated b v thc cur-f i'i-nt. sufficiently to niclt lead or other readily-A l'nsible metal. so that thtl closing of the circuit ol' which Said wire forms a part will result' in the heating'of-said lire and thc fusing of the'ifiisible` supporting incinbcr engaging tlnl Wire. The link Hinstead of being made of' a l fusible' metal may befconstriicted of other material adapted to be iveakeiicd or destroyed by heat, Such as celluloid.

An advantage gained by the use of an electric releasing device located within the valvecasinein connection with circuit-wires Whichpass through the wall of the valve-casing is that thtl said valvefcasing may be'permfb' nently closed', and thus rendered safeagainst the leakage of gas;

I claim my inventiona valve-casing, a movable valve-closure in saidcasing, means for holdingr the valve-closure 1n its open position embracing a supl. A safety-valve for gas-pipes comprisingr ,orting member which is destiuctible by. Q'

l ieat', and an electric circuit adapted to fenerate heat for effecting the destruction ofithe said supportingv member and the rcleaseof.

the closure.

i '2. 'A safety-valve for gas-pipes comprising a valve-casing, a movable valve-closi'ire in said 'casing which has a tendency to assume a closed position', and means for holding said valve-closure in its open position including-a l ,wire Within the casing which `is insulated from the casing and forms part of an electric fircuit.'v 3. A safety-valvefor gas-pipes' comprising La valve-casing, a movable Avalve-closure in said -casing which has a tendency to assume a closed position, and means for holding said j alve-closure iu' its open osition embracing a fusible wire located in tlie casing and insulated therefrom and forms part'of an electric circuit. f v: j -4. A safety-valve' for gas-pipes comprising ammo-casing, a, movable valve-closure. 'in said casing which has a-tendencyto Aassume a. Q closed position, and means for`holding said valve-closure in its open position embracing a wire located in'thecasinfg and forming part of an electric 'circuit and a link made of material which is destructibleby hea-t and which is engaged with said`wire.

5. 'A safety-valve for gasepipes comprising ADOLPH. W. JENCZEWSKY. Witnesses:

C. CLARENCE POOLE, f I. R. ViLitiNs.

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