US1085006A - Fire-extinguisher. - Google Patents

Description

P. B. BARRINGEB.

FIR-E EXTINGUISHER. APPLIOATION FILED rma. e, 191s.

11,085,006. l yPatented Jan.. 20, 1914.

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. PAUL BRANDON BARRINGE, OF BLACKSBURG, VIRGINIA.

FIRE-EXTINGUISHER.

Specication of Letters Patent.

u Patented Jan.2o,1914..

Application filed February 6, 1913. Serial No. 746,544,

To all 'whom it may concern: u Be it known that I, PAUL BHBARRIEGER, a citizen of the United States, and a resident of Blacksburg, in the county of Montgomeryv and State of Virginia, have invented a new and Improved Flre-Extinguisher, of vwhich the following is a full, clear, and exact description.

This invention relates generally to fire extinguishers, and more particularly to an improved structure embodying a single container.

The principal object of the invention is to provide a fire extinguisher of simplified construction, adapted to contain a number of solutions or substances for fire extinguishing purposes, the said substances or solutions bemg maintained separately solely by the differences in the specific gravities thereof.

A further object of the'invention is to pro- 'videa combination oflsubstances for fire exl tinguishing purposes; that is, tetrachlorid of carbon,` carbon dioxid, and sodium bicarbonate in solution, each of which is separated from theothers in the normal position of the container,I inversion thereof permitting the liquids to mix and be discharged therefrom. I Y

In the accompanying sheet of drawings I have shown, by means ofA a sectional View, the preferred construction .of the container, and also the relative arrangement of the fire extinguishing substances therein.

It is true, of course, that the shape of container show-n is merely typical of suchI structures, the inventive idea being satisfied by other containers diiering in size and shape to whatis disclosed. a. y

The container- 1 is preferablymade of iron or galvanized iron, lead lined iron or copper, provided with an opening 2 adjacent its` top, which is normally closed by vmeans of a screw-threaded cap or cover 3 which may be of any particular design or shape. Adjacent the top of the container is an outlet 4 leading through the offset 5,

which is' connected with a tube or hose 6, the other end of which is preferably provided with a nozzle `7 whereby thelelemen'ts within the container or casing may be directed where desired when the extinguisher is in use. As shown in the drawings, the nozzle 7 is maintained closely adjacent the outside of the casing'by means of oppositely positioned spring chps 8, the lower end of the nozzle being protected from injury by means of a shelf 9 lying closely adjacent thereto. In order to prevent access of air to the interior ofthe casing the shelf is` provided w1th a .relatively soft element 14 against r which the end of the nozzle is maintained byV means ofthe said spring clips. Within the casmg, and remote from the lower end thereof, is an end piece 10, preferably pressed to the shape shown, whereby a pocket 1,1 is provided, and within the pocket is a receptacle 12 which may be made of glass or other suitable material, held in position in any .suitable manner, as byl means of plaster of- Paris or equivalent material.

The materials used in the .extinguisher comprise sulfuric acid, tetrachlorid of carbon, vand a .solution of asodium bicarbonate in water. The sulfuric acid is placed in the receptacle 12 substantially to the height-a, after which the tetrachlorid of carbon is entered to the height b, a sheet of woven wire 13 being positioned on top. of the receptacle 12 after the tetrachlorid has reached sucha height, the salt solution being placed on top of the tetrachlorid of carbon and substantially to the height c. The sheet of woven wire '13 is preferably held in position by means of clips 15, and the central portion of the sheet is provided with an opening 16 whereby filling of the receptacle 12 is facilitated. Due to the difference of speciic gravities of these three/solutions they will remain separated, as illustrated in the drawings, inversal of the container, however, permitting the acid to mix with the salt `solution, generating bothV heat and carbon dioxid. The heat generated causes rapid expansion of the volatile tetrachlorid of earbon, which, together with the pressure of the carbon dioxid, brings about the rapid discharge of the fluid and gases from the container.

A consideration of the drawings and the descriptive matter will make clear the fact that tetrachlorid is used as a sealing agent for the acid andthe acid fumes, this same tetrachlorid later serving the function of a fire extinguishing agent; further, the single container holds the combination'of the sub- A stances or solutionsy mentioned having their purposes as ire extinguishing compounds, the differences in specific gravities maintaining the solutions separated.

The sizeof the'container is, of course, of

nol essential importance, as modifications may be made in the relative dimensions Without departing from the inventive idea.

Having thus described my invention,what I claim as new and desire to secure by Letters Patent is 1. In a re extinguisher, the combination oi' an acid and a solution of sodium bicarbonate with tetrachlorid of carbon, the tetra* chlorid of carbon serving as a sealing agent for preventing mixing of the acid and the said solution.

2. In a fire extinguisher in the form of a single container, the combination of substances Which when mixed bring about the generation of carbon dioxid gas, With tet-rachlorid of carbon, the tetrachlorid of carbon lying between the said first substances, whereby theyfare prevented from mixing.

3. In a lire extinguisher, the combination of an acid and sodium bicarbonate which When brought together form carbon dioxid gas, With tetrachlorid of carbon as a Sealing agent for preventing mixing of the said acid PAUL BRANDON BARRINGER.-

lVi-tnesses:

C. J. CRAWFORD, R. T. ELLETT.

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