US449178A - Automatic gas-supply shut-off and regulator - Google Patents

Description

(No Mode.)

W. o. ROSSNEY. AUTOMATIC GAS SUPPLY SHUT-OFP AND REGULATOR. No. 449,178.

Patented Mar. 31, 1891.

Unitarian Sterns Parent rricn..

lWILLIAM C. ROSSNEY, OF HYDE PARK, ASSIGNOR OF ONE-lIALF 'lO llllOl-IAEL J. SOANLAN, OF BOSTON, MASSAOHUSE'FTS.

AUTOMATIC GSSUPPLYSSHUT-0FF AND REGULATOR.

SPECIFICATION forming part of Letters Patent No. 449,178, dated March 31, 1891.

Application filed October 6. 1890. Serial No. 367.177. (No model.)

T @ZZ whom t may concern: through the valve-seat C, and which is sup- Beit known that I, WILLIAM O. ROSSNEY, ported onthe top fof the chamber bya crossof Hyde" Park, in the county of Norfolk, State bar l.. The upper end of the stem m is proof Massachusetts, have invented certain new vided with a socketp, in which a ball q works, and useful Improvements in Automatic Gassaid ball being formed on the end of a verti- Supply Shut- Offs and Regulators, of which cally-arranged rod r, the outer end of which the following is a description sufficiently is disposed in a dome t on the cover b. full, clearyand exact to enable any person A horizontal partition o is arranged within skilled in the'art or science to which said inthebodyAabovethechamberd,andisprovided 1o vention appertains to make and use the saine, with a centrally cylindriealopening no, through reference being had to the accompanying which a rod fr passes. Around the walls of drawings, forming part of this specification, said opening a cylinder iv/is secured to the parin which tition @,foriningaliqnid valve seat e, in which Figure l is Li. sectional elevation illustrata valve 15 works, said valve being adj ustably 15 ing my improved device in use, and Figs. 2 mounted on tlierodr,\vl1icl1is screw-threaded and 3 sectional elevations showing modiiicaat 16 for this purpose. A cylinder 17 is distions in the formation of the shut-olf valve. posed on the partition y'n and forms a liquid 7c Like letters and figures of reference indiseal 18 with the walls of the body A. A dome cate corresponding' parts in the different figor gas-holder 19, ad justably mounted on the 2o ures of the drawings. threaded portion of the rod r plays in said My invention relates especially to means i seal, weights 2O being disposed on said dome for regulating the supply of illuminating-gas to adjust it in the liquid seal. A dischargeto buildings and providing the same with a pipe 25 opens into the body A at the side opshut-oft', whereby gasexplosions may be preposite the main supply B and leads to the z5 vented in case of fire in the building; and it diii'ereut rooms of the building. A pipe 2G consists in certain novel featureshereinafter passes through the partition n and opens fully set forth and claimed, the object being within the cylinder 17, its upper end being` 8o to produce a simpler, cheaper, and more efprovided withaspring-pushedswingingvalve fective device of this character than is now 27. Said pipe then passesout through the 3o in ordinary use. wall of the body A adjacent to the discharge rlhe nature and operation of the improve- 25,andis extended horizontally until it nearly ment will be readily understood by all conreaches the wall D, where it is provided with versant with such matters from the following a cock 29. Said pipe again passes horizonexplanation. tally by the regulator-body A and enters the 55 In the drawings, A represents the body of gas-discl'iarge pipe 25 at 30. The main supthe regulator, B the main gas-supply pipe, ply B is tapped by a vertically-arranged pipe and C the water-pipe. S1 near the wall D, said pipe being provided 9c The gas-supply pipe B opens through the with a shut-oft cock 32 and a vent-cock 33. building-wall E in the usual manner. The pipe 31 then passes into the body A he- 4o The regulator-body A consists ot' a cylin tween the chamber-top f and the partition 'n drical metallic box, which isinterposed in the and opens at 31 within the cylinder 17 under supply B, and is provided with a removable the dome-valve 19. cover b. A vertically-aman ged water-pipe ll passes lVithin the body a chamber d is formed through the inner wall D and is connected 45 into which the supply B opens. In the top j with the watersupply pipe O. Said pipe Il of said chamber a cylindrical valve-seat g is is so disposed that it will pass through the mounted, the lower edge of said cylindrical entries or exits of the building. A gas-pipe 10o seat being toothed or corrugated at 7L. In the 35 is disposed within the pipe H and is surbottoni of said chamber a drip-pipe t' opens. rounded with water. The lower end of said 5o A cup-shaped 'valve adapted to contain gas-pipe is connected by a pipe 36 with the mercury and having its upper edge turned inmain gassupply B. Branch pipes 37 tap the ward, forming an air-space 7o, is adjustably pipe 35 at such points asit is desired to main- 105 mounted on a stem m, which passes vertically tain a light. The burners 3S on said pipe are the valve-seat g into the main body A and out the discharge 25. Gas from the dischargepipe passes through the pipe 2G and into the body A under the dome 19. The pressure thereof causes said dome to raise or lower in 1.0 its liquid seat 18, carrying with it the rod 7,

and opening or closing a valve j, thus automatically regulating the supply of gas to said discharge 25. The valve 15, sealing the opening through the partition o around the rod fr,

15 prevents the direct pressure of the gas from acting upon the dome 19, and causing the gas in said discharge-pipe to remain at a normal pressure. In case of fire in the building or if from other cause it is desirable to cut oi'f 2O the supply of gas the cock in the pipe 31 is opened. This admits gas from the supply B atstreet pressure through said pipe 31 into the regulatorA under the dome 19. Said dome is immediately forced upward by the 2 5 increased pressure and carries with it the rod r, forcing` the valvej tightly against its seat g, and cutting off the supply of gas to the discharge 25. At the same time the direct pressure of gas under the dome 10 from the pipe 31 drives the swinging valve 27 against its seat and closes the pipe 26, preventing` any gas passing therethrough to the dischargepipe 25. The spring-tension of the swinging valve is sufficient to hold said valve open 35 against the regulated gas-pressure under the dome, permitting the escape thereof and the dome to descend to open the valve j when the pressure in the discharge 25 is reduced by the lighting of the burners. Such springtensionl is not, however, suficient to resist the direct street-pressure admitted tothe dome as above described through the pipe 231, and said swinging valve is thereby closed. The supplemental gas-pipe 35, being incased in a water-jacket, is protected from injury by heat or from the falling portions of the building, and a light may be retained therefrom illu minating the exits while the main supply of gas is shut off from the building. When it is again desired to turn on the gas, the cock 32 is closed, shutting off the direct press ure from the dome 19. Said pressure is then relieved to permit said dome to fall by opening the vent-cock in the pipe 31. As the dome thus descends it opens the valve j and again admits a regulated supply of gas, as above described, to the discharge-pipe 25.

I do not confine myself to the form of valve j and seat g described, as any suitable construction of valve may be employed.

In Fig. 2 a hollow inverted-cone-shaped valve 40 is shown, which rests upon a knifeedge seat 41, mounted on the top f of the chamber d, in the sameposition as the valveseat g described. Said valve 40 is swiveled at its apex to a rod 4t2, the upper end of which is hinged to a counterbalance-lever4S,

pivoted at l--l to a standard 45, secured iii the chamber-topf. The opposite end. of the lever 13, when this formof valve is employed, is pivoted to the rod o'.

In Fig. 3 a hood-valve is shown. Aseat 50 is constructed in practically thesame form as the valve j, and is designed to be secured. in the topf of the chamber d. The valve 51 is constructed in practically the same form as the valve-seat g described, excepting that its top is closed at 52 and is pivoted to the end of a lever 43, in the position of the stem i2 in Fig 2.

Having thus explained my invention, what I claim is- 1. In a device oi' the character described, a

gas-pressure regulator comprising a body or casing provided with a main supply-pipe, a discharge-pipe, a valve, and connected gasactuated mechanism, in combination with a pipe connecting the discharge-pipe with said. valve mechanism, and a pipe connecting said mechanism directly with the main supplypipe, substantially as and for the purpose Set forth. 2. In a deviceof the character described, a gas-pressure regulator' provided with a main Supply-pipe, a discharge-pipe, and a cut-off valve interposed between said pipes, in combination with a liquid-sealed hood on the stem of said valve, a pipe connecting said hood with the discharge-Lupe, a spring-cushioned swinging valve in the mouth of said pipe, and a pipe connecting said supply-pipe with the hood, substantially as described.

3. In a device of the character described, the combination of a gas-pressure regulator, a supply and a discharge pipe therefor, a pressure-regulating eut-off valve in said regulator, a pipe connecting the discharge-pipe and valve-actuating mechanism, a pipe connecting said supply-pipe with the valve-actuating mechanism, anda cock and vent in said pipe, substantially as described.

4:. In a device of the character described, a gas-pressure regulator and gas supply and discharge pipe therefor,in combination with a pipe connecting said discharge with the pressure-regulating mechanism, and a pipe connecting said supply with said mechanism, substantially as and for the purpose set forth.

5. In a device of the character described, the body A, provided with supply and discharge pipes, the valve j, hood 19, and respective seats, arranged substantially as specified, in combination with the pipe 26, provided with a valve 27, and connecting the discharge-pipe with said hood, the pipe 3l, connecting the hood and supply-pipe and provided with a cock 32 and vent 33, substantially as described.

TILLIAII C. ROSSNEY.

lVitnesses:

O. M. SHAW, K. DURFEE.

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