US1878369A - Fire extinguisher - Google Patents

Description

Pat'ented Sept. 20, 1932 UNITED STATES ALBERT BLANxENHAeiiiv, "or' .nxno1\r, 03:0

FIRE EXTING'UISHTER Application filed October 24, 1923,. a Serial no. -a 14,eo5

This invention relates to new and novel improvements in dispensing apparatus and while capable of application generally wherever it may be advantageously applied, it is 5 particularly intended for use as a fire extinguisher in which connection it is illustrated in the drawing and hereinafter described.

Objects of the invention are to provide a dispensing apparatus of simple, durable confl struction, which may be provided at a low cost and which may be conveniently used and which will be extremely efiicient in use.

A particular object is to provide a fire extinguisher of very simple construction, which may be loaded and permanently sealed whereby it may be kept indefinitely without impairing its efficiency, and, which may be manufactured at a low cost whereby it may be discarded after use.

tinguisher including a permanently seated casing having a fire extinguishing agent enclosed in a collapsible tube mounted thereon and having two substances enclosed within the casing which when combined will produce a force which will bear against the outside of said collapsible tube and expel the contents thereof and to enclose one of said substancesin a fragile container which may be broken by indenting the casing and to thereby provide means for generating a force within the casing without the use of valves,

pins, punches or other apparatus which op-' erate through an opening in the casing.

An additional object is to provide a fire extinguisher including a casing having a delivery opening or nozzle which is closed by a flat strip soldered to the casing whereby the 40 strip may be forcibly removed to open the nozzle when the device is ready for use.

The above objects are accomplished and additional ends are attained by the novel construction, combination and arrangement of parts hereinafter described and illustrated in the accompanyingdrawing wherein I have shown one form of the invention, it being understood that the invention is capable of various adaptations and that'changes and modifications may be made or resort had to Further objects are to provide a fire ex-' substitutions which, come within the scope of-the claim hereunto appended.

ln'the drawing like numerals of reference are used todenote-likepartsas thesamemay wh1ch: v,

Figure 1 isa side elevational VlGWjO'fafifiI'G extinguisher constructed in accordance with this invention. r Y I 1 Figure :2 is a crosssectional view-of same 60 takenas indicated bythe lines 2 2 -.of -Figurerl, e v a a, Figure-3 is an elevational: view of a fire extinguisher constructed in accordance with this invention, 7

Proceeding now to a detailed description of the invention with particular referenceto the adaptation thereof illustrated in the drawing, the numeral 5 is usedto denote the main body of, the casing. The body 5 is 96 cylindrical in form and is provided @at one end thereof with a hemispherical end wall 6. The l'nuineral l' also denotes. a;portion of the casing. The portion 7 .issimilar in construction to the casing 5 and'is likewise provided with a hemispherical end wall8 which is similar "to the end wall (i on the portion-5. The numeral 9 denotes a member which is in themshapeo'fa hollowtruncated cone. Asemispherical cu 1p 101s secured to thesmallend 1'3 of the member 9. V Aghollowglassglobe 11 is positioned :inthecavity of the cup 10. The member 9 is provided atthe large end thereof Witha-n ,outwardlyprojecting, circumferentially' extending "flange 9a. The flange 9.a is positioned against the axial edges-of the easings 7 and 8. A band 1211s soldered orotherwise snitably jsecured around the jointthu-s formed to'hold the several parts in assembled relation A-collapsible tube '13which is preferablylformedof lead or a similar ductile 'materi allis positioned ;within the. cavity of the casing 5,

TheEtube l3econformsiiisha peitothe shape ofthe casingjo, being provided with a hemimy sphericalrend portion l kwhich fits within the Cavity of the end portion. "The tube 13 is providedwi-th an opening 15 which iswprefe'rably positioned through the end portion 14 so asv to communicate with the similar W90,

appearIi-n any ofthe several views and in '85- opening 16 in the portion 6 of the casing. A certain area of the tube 13 which extends entirely around the opening 15 is soldered or otherwise secured to the interior wall of the tube. 15 whereby, pressure exerted on the collapsible tube 13 will not escape between the outer walls of the tube 13 and the outer casing. A strip 17 *of relatively thin sheet metal is soldered or otherwise secured to the end portion 6 so as to entirely close the open:

ing 16 the solder being kept in spaced relation to the opening 16. One end ofthe strip 17 is turned back uponitself to form a loop 17 in which is suitably mounted airing strip from the end 6 of the casing 5 thereby which may be engaged to forcibly pull the opening the nozzle 16. The portion 7 is provided with thecavity 19which is adapted to contain a gas producing element. The wall of the member 9 is provided with a plurality of openings 20. I

A suitable quantity of carbonate of [soda or other gas producing element is placed within the chamber 19 of the member 7 and sulphuric acid or other gas producing substance is-placed withinthe glass ball 7 which is adhesively secured in the seat 10. The member 7 is provided on the-rounded end 8 thereof with a block 21 which is soldered or otherwise suitably secured thereon. The arrangement is such that one side of the ball is in-close spaced relation to the wall 8 of the portions 7 of the casing. The collapsible tube 18 is filled with carbon tetrachlorid or other fire extinguishing liquid.

l/Vhen it is necessary to use my improved fire extinguisher, the block 21 is brought into contact with some object with suificient force to indent the wall 8 of the portion 7 of the casing and break the glass ball 11. The acid within the ball unites with the gas producing element in the cavity 19, quickly forming an expansible'for'ce therein. The ring 18 is then engaged and the strip 17 is forcibly torn from the end portion 6 of the casing 5; The

gas formed by uniting the gas producing elements passes throughthe openings 20 in the member 9 and compresses the collapsible tube 13 whereby the contents thereof will be forced outwardly through the openings 15 and 16.

Having thus illustrated my invention and described the same in detail what I claim as new and desire to secure by Letters Patent is ,i

In a device of the class described, an en-' closed casing, a perforated partition dividing said casing into a main chamber and a pressure generatingchamber, a collapsible container in said'main chamber said casing and container having coinciding dischargeopenings, pressure producing substances in said pressure generating chamber, frangible c'ontainer enclosing one of said substances, said frangible container supported by said partition in a position close to the wall ofsaid

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