US1263291A - Fire-extinguishing apparatus. - Google Patents

Description

w.-C. SCHULTZ.

FIRE EXTINGUISHING APPARATUS.

kAPPLICATION HLED MAR.20. 1915.

Patented Apr. 16, 1918.

/*A U @my To allow/bom t may/concern: a {,Be it known thatl, WILLIAM C. SCHULTZ, acitizen of theUnited States, and resident of Wauwatosa, in the county of Milwaukee andState of Wisconsin, have invented certainnew `andffuseful Improvements in Fire- Illxtiii-guishing Apparatus; and I do hereby declare, that the following is a full, clear,

- and. exact description thereof. f f

My." invention consists.- in the apparatus herein particularly set forth with reference to -tlie accompanyingdrawings' and pointed out in the claims of this specification; its objectI *beingI to yprevent spread and `rapidly extinguish Vfire occurring in an oil-storage tank or, other `structure into' which said apparatus has its discharge. Said invention has especial reference to the use of carbon tetrachloridas a fire extinguishing' medium and to the `distribution .of the same in an atomiaed'condition by meansI4 of a gaseous lfluid;,preferably carbon-` diox/id gas, under' pressure against saidcarbo l tetrachlorid in a container for the two that has a normally seale(l .discharge conduitlhaving ports therein intermediatefofit's inlet' and outlet topprovile foliangimmediate simultaneous escape,v

or' the lextinguishing liquid and gaseous fluid through the conduit when the same is unsealed, said gaseous Huid under pressure constituting the force by whichisaid liquid is' expelled therewith in anatomizedcondition. The carbon dioXid gas is thus saturated with tetrachlorid, and the two extinguishin mediums then intimately mixed have rapi diffusion and descent in a structure as aforesaid with which my improvedapparatus is associated to yring therein.

Figure l of the dra 'ings represents a vertical sectional view/of my improved :lirecxtinguishing appatatus by 'which my novel fire-extinguishingprocess maybe made effective, and f f Fig. 2, a hprizont'al sectional 'viewof a detail of the apparatus indicated by line 2-2inFigLL 'f' Referring by numeralsto the draWings,-3 indicates a cbntainerhaving a neck 'reinforcement 4. Screwthreaded in the neck of the container is a shank arin 5 of'a `hollow .fitting constituting part of a-discharge-com dtywith which said container is pv' vided and theinner end of said arm is reduced an recessed-.Srewthreaded on the reduction quickly smother a iie. occur- .l

` Winti-AM c. SGHUIJTZ,l oF wAUwATosAQvi/Isconsm. l jf Yof said fitting-army isa nipple 6, and caught rmnltexirrneursnms APPARATUS. y

appncmn inea Mammalian. 1serialA Nb. 15,937." l

vSpecification. of Letters Patent. i ,p PateutedfpiI- 191g;

between the two isagflang'e 7 upon anend of.,.V y. a a pipe-member 8 of said conduit thatextends through the nipple. A' bulbous 'coupling 9 and another pipe-member .10 are shown as constituting parts of the conduit, saidy :pipe-,1 members being connected. by the coupling? *The conduit extends'in the container .to near- .11-

`with ports 11 intermediate ofzits' inlet and- A'the bottom 'of thesame',y and it 4is.'provided .w

pling-member 9 of the-conduit approximately parallel to the bore ofsaid container' vi .1 vas a matter of preferred construction fp/'r "arriving at the best results inpractice. A "volume 12 ofcalbon tetrachlorid or other fire extinguishing liquid is placed in the a container preferablybelow the 4portsof the *i conduit afores'aid,and the remainder of vsaid:

container is filled vwith 'a gaseousiiuid, prefegainst a stop-piston"14,` that' has, displacement into a shell-armv 15 of said fitting. The

shank-arm 5 of. said fitting; lThe latchgis which piston isnormallyin vthe intersection of the bores of the i'itting/above specified.

The latch 16 is part of a shackle 16 coupled to a rod 18 that extends through a sleeve 19, and astraddle of the rod in opposi-` tion to a collar 20 on the sleeve is a plug 21 having an outwardly shouldered stem 22 that extends through a hollow arm 23 of the aforesaid fitting into which the plug is retractive. Fast on the stem 7, outside of the fitting-arm y23, is the collar-end 24a of a lifting rod 24:, by which provision is had for .manual displacement of the plug 21 to permit retraction of the piston 14 and an autolmatic displacement of the seal 13, under pressure vfrom within the' container, the result being a iow of the contents of said container through the aforesaid conduit.

Abuttinga collar 25 on the sleeve 19, outward from the nozzle end ofthe aforesaid tting, is a tube 26 secured by fusible solder to a tube 27 that is loose on the rod /l8, and a nut 28 is run on a screwthread of said rod against tht outer end of said tube.

erably carbondibxidgas, under pressurerl y, l A exible; seal 13 ise'mp'loyedjin thel rel. f-

`cess of the arm '5 of the aforesaid fitting ,e

y s'ofii piston is heldin normalpositol k'by a retractive latch '16 inthe boreof lthe .noz'zlearm 17'of the 4itting at right-angles to the@v 25 discharge and thus accomplish the result to rlal No.l 879,915.

In practice the nozzle of the above described apparatus extends into an oil-storage tank. or other structure and said apparatus is vmanually unsealed, as above described orautomatically unsealed, as a result of a melting away of the fusible solder between the tubes 26 and 27 in the event of iire in said structure, whereupon there is an automatic discharge of the contents of the container, the gaseous liuid therein under pressure being the force by which the liquid also in said container is expelled. If the liquid is below the ports 11 of the conduit,

-some of the gaseous fluid will escape from the nozzle end of the conduit simultaneous with said liquid to atomize the same at the which my invention is particularly directed. Should it occur that the volume of liquid in the container is over the conduit-ports when the container is insealed, the iiow of said liquid will precede that of the gaseous fluid until such time as said ports are uncovered, whereupon the two mediums will flow together through the conduit to have a simultaneous discharge therefrom, and all of said liquid having been discharged, thef remaining gaseous fluid is free to discharge and diffuse itself over the mixture of said fluid and atomized liquid. The liquid and gaseous fluid being both re-extin uishing mediums, the best result is attaine by the simultaneous discharge ,cf the two from the conduit of the apparatus in the form of a spray in which they are intimately mixed to thereby intensify the 0extinguishing effect of both, and the two chemicals aforesaid have been found best suited to my purpose.

I claim: l

1. A lire extinguishing apparatus comprising a container adapted to contain in its lower portion a volume of tetrachlorid and in its upper portion a volume of carbon dioxid gas under pressure, a conduit in the container land extending from near the bottom thereof, an outlet for said conduit outward of the container, and inlet ports in said conduit adapted to be normally 'disposed above the liquid level, said ports being approximately parallel to the bore of the container, substantially as described. f y

2. A. fire `extinguishing apparatus comprising a container adapted to contain fire extinguishing mediums, aA conduit in the container and extending from near the botl tom thereof, said 'conduit comprising two sections and having a normally sealed outlet and being open at its bottom, a bulbous coupling coimecting the sections of said conduit and disposed intermediate the top and bottom of said container, ports in said coupling, said ports being approximately Y parallel to the bore of the container substantially as described.

3. A fire extinguishing apparatus com* prising a container adapted to contain iire extinguishing mediums, a .conduit in the container and extending from near the b0t tom thereof, said conduit having a normally sealed outlet and beingl open at its bottom, and an enlargement intermediate the ends of said conduit, and having inlet ports therein.

In testimony that I claim the foregoing I have hereunto set my'hand at Milwaukee in the county of Milwaukee and State of Wisconsin in the presence of two witnesses.

i WILLIAM C. SCI-IUL'IZ.

Witnesses:

N. E. OLIPHANT, M. E. DOWNEY.

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