US1929239A - Fire extinguisher - Google Patents

Description

Oct. 3, 1933. c, R. D'oLlvE FIRE EXTINGUISHER Filed June 28. 1929 MWL.

Patented Oct. l3, 1933 Unfreie-ms Fy'r-Fyter' Company,Day ton,' Ohio,Y ap'corpora-Q 'Y 'l .-ebplieiiil Jini?#85.19294iSerieNaaaos 5 claims; (Gilles-2)' v Thisinvention relates .to refextinguishers. Y v,One of the'principal objects of the invention is theY provision of a nre extinguisher which-isv economical to manufacture, is .simple inacon-Y struction and operation, and is `highly .effective in its action vAnother object ofthe` invention to provide an extinguisher which maybe located adjacent a potential source of nre and may be operatedfrom a remote position, thereby T'providing a. satisfactory extinguisher for a. vehicle, such as an air-f plane 1. lili l L Other objects and advantages offthe. invention will berapparent fromthe following descrip@ tion, thel accompanying drawing and theappended claims'. 1 ,A In the drawing, inwhich like characters-Pof reference designate likeV parts throughout the several views thereofz- Fig. .l ;i s a bottom plan ViewV of 'a' nre extinguisher:constructed in accordance with-this invention; A Y l f A Fig. 2'is a verticalsection taken on the'plane of the line 2 2 oflg. `l;Y Y

Fig-f 3j is a partial vertical section .taken'onV the planef'o'f the line 373 of.Fig.'2;` 1. Fig. 4 is a view similar to Fig. 3 showing a modiflcationll f Fig. 5 is a section through an airplaneengine housing showing the extinguisher of this invention mounted therein; and

Fig. 6 is a diagrammatic showing of a trimotored airplane in which are mounted eX-' portion 14 within which is screwed a lling plug 1 5 having a sealing gasket 16.

The cylindrical casing is preferably provided with an indented portion 17 extendingv longi` tudinally thereof. Within this indented portion is formed a slot or slots 18which serve as 'discharge ports for the release of the contents of the container. vent tubes are provided. Each vent tube has an outwardly flared end portion 21 whichis soldered or otherwise attachedto the container wall with- The end wall 13 In order to aid the discharge,l

in the indented portion;V l'Ihe vent tubes entend upwardly and open within the Vcor'it'ainer adjacent the wall thereof:` opposite"'the indented portion;

Preferably apluralityoffvent tubes 20"a`re;pro lvided; as .showmin Fig.. 2,. where one' isuipositioned adjacent each end Vwall so that ifthefex'.-

tinguisher is putV-in'to: operation' while intilted position at least one of the ventltube'fopenings will be aboveth'e level of the huid withinthe cn-V tai-ner and willprovide ia path for'air"` to enter the container` and displace 'the' fluid'contentst'o "i aid in the `rapid dischargefof the contents; A? Y sealing rnember22,zwhich may be av thin metallic strip of shim stock,.:is attached tofthefsurface of the containerfwithin the indentedportiofi by 'running soft solder: orflike materialindicated-'at 23 into the joint'between the edges of'f'th'e 'seal ing member andthe surface of the indented portion.. 'This'vservesto seal-the.v slot and'v'ent tube Y openings .soA as K4to fprovide 1an vairtight j'closure for the container.. One'end of the 'Se`alin'g1inern-` i ber is provided with'- a' loopn30 orothe'r attaching means-to` which an operating `cablesuch asfthe pull .cord31 is secured so ythat-uponactuation'*of the'pull cordthe softsolder joint between the sealing memberiand the` containerfwalLwill" be broken and. the :sealing member Iwill be' torn laway from the container;` thus exposingr the discharge ports 18 and the vent tubes 20 to Vpermit -dis charge of the extinguishing liquid from'the con-` tainer inthe form of a curtain or sheetfspray.

Fig. 4 shows a modified construction lin which edges of the slot are bent inwardly as at 25 to 'provide Va V-shape trough withinwhich' is laid a'wire 26. Solder indicated at 27 is run into thev "the container wall 11 is' slotted andthe adjacent y space'between .the wire and the bent-in surfaces of. the containerwall to provide a sealed joint over the slotted ope`ning28.V

In-Fig. 5 an extinguisher V10 constructed in the.' Y manner above described is shown mounted Within the housing 35 ofthe. engine compartment of an airplane. The engine 36,1;0 the crank shaft of' which is attached a propellerr'ly has intake pipes y 38 communicating with a manifold 39 which in turn is connected tothe'carburetor 40. Theextinguisher V10 is held in place by bracketsy 41, one of which is shown, and isy mounted vwith the slotted opening A18 and the sealing strip on th'ei Y Y bottom side ofthe extinguisher.'v A pull cord 31 is vattached tothe sealing member of the extinguisher and extends to some-positionv in the airplane convenient tov the occupants, so thatin l' case of a -fire a pull on thevcord 31 will tear the sealing stripjfrom the extinguisher, thus permit-v ting the contentsto be discharged by gravity and to be carried over the carburetor and its associated parts.

In Fig. 6 vextinguishers are shovvn applied to a tri-metered airplane. An extinguisher 1 0 is positioned in each'of the engine compartments and to each extinguisher is attached .la pull cord 3l.`

The pull cords 31 terminatein'control handles 42 which are Within easy reach of the pilot who is stationed Within the cock pit 43. If a re'should start in any one yof the engine compartments the pilot, by pulling the respective control cord extending to the particular compartment in which the fire originated,can .discharge the cony -tents of that particular extinguisherwithout actuation of the others. Upon removing the sealing strip the extinguishing i'luid Williallbye gravity and will be sprayed by the vslip streamor air l currents created by the propeller throughthe engine compartment.

` While Ithe forms of apparatus herein described constitute-:pref erred embodiments' of the inven tion, it is to be Vundrerstoodthat the invention is notflimited to these preciseformsvof apparatus, and that changes may be madetherein without departing from the scope ofjth'e invention which is defined in the appended claims 11 `gWhatis claimedfis: i r' f, 1.` A re extinguisher comprising a container adapted to Yhold a vfire extinguishing fluid, a dis Y charge port'for said container, avent 'for said containenmeans releasably fastened to said con-L tainerwover said discharge port and said vent forl `sealing said discharge port and said vent, and

. manually operable meansl for removing -said seallng-means from the container so as to 4expose saidrdischarge port and said vent. with resultant discharge of said re extinguishing fluid.

f2. A re extinguisher comprising an elongate container'adapted to hold a fire extinguishing for eiecting stripping of said said port and said vent tube for sealing said portv and said vent tube, and means for removing said sealingmeans from the container so as Yto expose the said port and `vent tube with resultant discharge of said fire extinguishing fluid.

3. A re extinguisher comprising a container, adapted to holdfa fire extinguishing fluid, said Vcontainer having an indented portion in the side wall thereof extending longitudinally of the container, said container having a discharge port in said -indentedportiom a vent tube openingv Within the extinguisher and fastened to the interior of the indented portion of said container, sealing means attachedto the container within the indented portion providing a closure for sadrdischarge port andvent tube, and means for manually stripping said sealing means from said container to expose saiddischarge port and vent tube: l

` 4; A fire extinguisher of the character described comprising an elongate'container adapted to.hold a fire extinguishing fluid, said container Yhavingan elongate slot in the side wallthereof extendingA longitudinally of said container, a plurality ofvent-tubes extending from saidrslot in the sidewall of the container and opening within thecontainer adjacent the opposite wall thereof,

` there` being a. venttube adjacent eachend of the extinguisher, a sealing.v member providing a closure for. said' slot and vent tubes, means such as soft solder for releasably fastening said sealing member toV said extinguisher, and means sealing member from saidextinguisher. V-

5. A re .extinguishercomprising a container adapted to hold a fire vextinguishing fluid Vand having a gravity discharge portl for the discharge `oi' said extinguishing fluid from the ex tinguisher, a sealing member for the Vdischarge port, a vent for thev container, means such as soft solder for releasably fasteningtthe sealing member to the container over thel discharge'port and vent, and manually operablemeans for removing said sealing member from the contanerlso. as to exposev said port and vent with resultant discharge of said fire extinguishing fluid.

CHARLES R. Donrvrz.l

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