US393396A - Oifaklks e - Google Patents

Description

G. E. SORI ER. NATURAL GAS PROTECT EXTINGUISHER.

No. 393,396. Patented Nov. 27, 1888.

mu In! wi l 1 wum UNITED STATES PATENT @EEiQE.

(HIARLI'IH .l l. fiUillBlTl llt, Oh (JIHUAGO, ILLINOIS, ASSIGNOR TO 'illll \ViCS'll lll-N ELECTRIC COMPANY, OF SAME PLACE.

NATURAL-GAS PROTECTIVE EXTlNGUISHER.

SPECIFICATION forming part of Letters Patent No. 393,396, dated November 27, 1888.

To all [I l/101)] H HM/Z] concern: as, for example, when the pressure l'alls sudlle it known that 1, (minutes l HbltllliNltlt, denly much. lower than the normal. In this a citizen of the United ,States, esit'itng at (ihimanner the gas is shut oft, and hence it the cago, in the county of (look and State of ]llipressure is increased again no damage will be 5 uois, have invented a certain new and useful occasioned. 'lhethermostatd is so constructed Improvement in Natural-Gas Ilrotcctivc Exand arranged with respect to the flame or jct tinguishers, (Case 152,) of which the following 0 that as long as the jet is burning its contacts is a full, clear, concise, and exact description, will remain open, as shown. When the jet is reference being had to the accompanyingdrawextinguished, however, the eontactswill close. to ings, t't'irlning apart of this specification. The form of thermostat which l have shown "to in supplying gas for heating and illuminaconsists otsprings each. composed on opposite tion it is desirable that the pressure should be sides of mctals--as, for erample, zinc and copinaintaincd as nearly constant as possible. In per-having unequal coet'licients of expansion cascol'naturalgas,especially,ithasbeenfound when heated. it do not, however, limit my impracticable to at all times maintain a coninvention to any particular form of thermoo stant and uniform .tlow of the gas. When the stat, since there are various thermostats well pressure suddenly falls, as it frequently docs, known in the art which might be employed the gas is extinguishcd,and,the prcssuretherewith equally good results. after being increased, the escaping lills The cock I), as shown, is open. lhe arm 0,

the building, until, tlnally,tlmcscapcd gas, bewhich is attached to cook I). is preferably 7c coming ignited, explodes. Accidents of this weighted, its weight being sui'tieicnt, in consort have been of frequent occurrence hereto- 5 ncction with rctractile spring f, to turn the fore, and on this account natural gas espccock when said arm is released, so as to shut cially, which is highly explosive, has not oil the supply, the arm when so released t'allfound thcl'avor with the public whichit might ing to the position indicated by the dotted 7 otherwise have obtained. I lines in Fig. 1.. This weighted arm is normally The object of my invention isle provide for held in the position shown by catch 1 upon automatically shutting oil" the gas when for an armature-lever of an electro-nmgnctiedcany reason the pressure falls so low as to exvice. The coils Oihilt)(litlChlO'lllttgilOhiC device 0 tinguish the :tlamc. in this manner the How are included in circuit with a battery, It. and :1. st ol'gas is checked and all danger of explosions thermostat, it. in lhiseircnit isalso preferably is avoided. included the arm 1' and the catch g, in order My invention consists in elect-ro-maguetic that thecircuitmayheopened,when the-arm is apparatus so combined with the gas-pipes and allowed to fall. As long as thcjct econtinucs 5 the flame that on extinguishing the (lame the to burn, the thermostat 1/. remains open. and s; apparatus will be operated automatically to lumeethecircuitot' battery/I, throu h the coils cut off the gas supply. oiclectromagnet i, will remain open at the l have in theaccom 'ninyingdrawings illus thermostat. Supposing, now, the-gas should he trated one form of apparatus embodying my momentarilycutoll'orthepiessurediminished o mvention, in which sul'liciently to extinguish the jet r, thethernio- Figure l. is aside elevation of my automatic stat becoming cold imn'iediateiy, its contacts gas-extinguisher apparatus, and Fig. 2 is a will come together, thus closing the circuit, of plan view of the same. battery It through the coils i. .l.hecircuit be- .l.hc gas-pipe (0 maybe considered as coning thus closed, the armature carrying the nccted with the mains and of suilicientsize to catch g will be moved so as to release the arm 9 supply a dwellirig-house. in this gaspipc is e. Tlhercupon the cock I will be turned, the placed a cock or shut-0H, I. spriugj' bi'iiugpret'erably employed in conncc My invention is designed to furnish ready tion with the weighted arm 0. Assoon as the means of automatically closing a cock I) when arm 0 separates from the catch It the circuit .lor any reason the llarne(fis'oxtinguished-- will be again broken. A weighted arm or I drop 0 might be used alone, or a spring f of sufficient strength, without departing from my invention.

It will be understood that thegas-jet 0 should be supplied from the pipe at in such position and under such conditions that it will surely be extinguished when any other jet supplied from the same pipe is extinguished.

llaving thusdescribcd myinvention, lclaim as new and desire to secure by Letters Patent- 1. A gas protective extinguisher consisting of a cock or shut-oil" in the supply-pipe, in combination with a gas-jet supplied from said pipe, a thermostat placed in position to be heated by the jet, actuating mechanism for turning the cock or shut-oil", and an electromagnetic device in a battery-circuit with the thermostat, whereby on extinguishing the jet the electromagnetic device is operated to release the actuating mechanism, substantially as described.

2. The combination, with the gas supply pipe, oi a cock or shutoff included therein, actuating mechanism for closing said shut-oil,

an electromagnetic device normally retaining or holding out of operation the said actuating mechanism, a gasjet supplied from the said gas-so ppl y pipe, a thermostat in position to be heated thereby, and a batterycireuit through the electromagnetic device, which is closed when the jet is extinguished, substantially as described.

3. The combination,with the supply-pipe (1 ofa iet, c. supplied from said pipe, a thermostat heated by said jet and standing normally open when heated a shutoff included in said supply-pipe, and an electromagnetic device whereby said shut oil is operated when the jet is extinguished and the contacts of the thermostat closed, the circuit of the electromagnetic device being opened by the ClOSiHg of the shut-off, substantially as described.

In witne' s \"E: on! .aereunlosubscribe my name this 2d day of May, A. i). l-Fifit? CHARLES E. SUltlliNlGlt \Vitnesses:

(June. 0. Woomvoa'rn, CHAS. (2. HAWLEY.

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