US1700465A - Fire extinguisher - Google Patents

Description

Jan. 29, 1929.

c. A. BUERK ET AL FIRE EXTINGUI SHER Filed Jan. 18, 1926 Patented 29, 1 929.

UNITED STATES CHARLES A. BUEBK JEAN DUTEY, OF CHICAGO, ILLINOIS.

FIRE EXTINGUISHEB.

Application ala January 1a, 1926. Serial 1%; 81,910.

v This invention relates to a fire extinguisher of the portable type, and is distinguished from the fire extinguishers now in use by reason of the fact that it is provided with at least two chambers, one-of which is designed to hold and dispense dry powder, while the other chamber is designed to hold and dispense a liquid. The principal object of the invention is, therefore, to provide a unitary 1c and complete extinguisher of this kind, in

which both liquidand powder may be discharged at the same, and in difierent places,

at the same, or different times.

Fire extinguishers using dry powder as an extinguishing agent are known to be highly effective and efficient. Flames are killed by being instantly smothered, which makes such apparatus incomparable for use on incipient fires of all kinds andespecially extra hazardous fires, such as gasoline, oil, all inflammable liquids, and electric fires. On fires known as class A fires (Underwriters Laborato'r Classification) on which the quenching an cooling efi'ect of a liquid 2 is of first importance, that is fires in ordinary combustible materials, such as wood, excelsior, rubbish, etc powder is unable, most of the time, to kill the embers which in time might cause a reignition.

The present invention provides, in the same apparatus,a dry powder device and a liquid extinguishing device, sothat, whenever necessary, the smothering effect of the extinguishing powder can be completed by an the wetting and cooling efiect of the liquid emplo ed, or vice versa. The li uid employed may E e water, barbon ftetrac loride, antifreeze solution, or whatever liquid is best suited for the situation.

Referring more particularly to the drawings, Figure 1 is an elevation, partly in section, showing a fire extinguisher constructed in accordance with the principles of this. invention; and Figure 2 is a sectional'detail,

4e illustrating how the pressure cylinder may be divided into two separate cylinders and supported by the container.

In its preferred form, the present invention comprises a substantiall conical shell 1 so at the apex of which is a fix discharge nozzle 2, held in place by a. collar 8 and removable for the purpose of fillin this end of the container. The base of q t e rece tacle is closed, and has a dining cap 4 in w ich is a M check or safety valve 5 with a protecting and supporting stand-6 projecting therefrom, by

means of which the fire extinguisher may be supported and may be handled or held while in operation.

' Intermediate the ends of the receptacle, and preferably nearer the base, is a cross partition 7 which divides the receptacle into a base chamber and the apex chamber, the latter also being provided with a check or safety valve 8. Gonnected through the outer side of the receptacle, and communicating with the said chambers are tubular fittings 9 and 10, the one in the apex chamber having a spray nozzle 11 adapting it to be used for powder. From the base chamber, a tubular member 12. extends, to which is connected a flexible hose 13 with a nozzle 14 at the end thereof.

Pressure may be applied. to the se arate chamber of the extinguisher in any or suitable manner through the fittings 9and 10. They may be connected with any suitable source of air or pressure supply; but for portable use, it is desirable to have a portable pressure source as well. For this purpose, a small cylinder 15, capable of withstanding high-pressure is provided atthe ends with;

valve fittings l6 and 17 which are connected to the tubular fittings 9 and '10 by suitable couplings 18. Instead of having one cylinder 15 two similar cylinders 19 may be applied .to the chambers as described, and the adjacent ends of these cylinders may be supported and attached to the receptacle 1 by means of a tubular bracket 20 supported at the side of the receptacle 1 as shown more clearly in Fi ure 2.

esired ith this construction, is is obvious that either or both of the chambers may be caused to discharge their contents separately by opening or closing the'valves 16 and 17, and

with a flexible hosefor one of the chambers,

the contents thereof may be discharged in a difierent direction than that from the first nozzle 2. The flames may be smothered by the powder, and the embers, whichvare danerous, may be wet down with the liquid rom the other chamber. The fluid under pressure in the cylinder or cylinders may be air, 00,, or any suitable fluid, the pressure being sufficient to completely expel all the contents of both of the chambers of the exti uisher.

e claim:

- 1. A portable fire extinguisher in the form of an inverted cone having a transversepartition therein dividing it into compartments, pressure holding means having a separate lot valved connection with each compartment, tubular discharging means leading from each compartment, and a flexible hose in'connection with one of the tubular means which enables the discharge from one of said compartments to be directed in the same direction as that from the other compartment or tents thereof at will with the said xed nozzle and away from it.

3. A portable fire extinguisher having closed pressure compartments for powder and liquid, valved pressure holding means communicating with said compartments for separately and simultaneously expelling the contents of the compartments, means for directing the contents of said compartments at will in the same and in different directions, and separate safety valves for each of the compartments.

conical shell with an interior partition to form a truncated conical base compartment and with a fixed discharge nozzle at the apex of the shell,"pressure holding means having separate valved connections with each of the compartments, and a flexible discharge hose for the base compartment which enables the discharge from said compartment to be directed in the same direction as that from the other compartment or in a different direction. 5. A portable fire, extinguisher having closed pressure compartments in the same container, pressure holding means comprising a separate valved'cylinder for each compartment, and discharge means for directing rate valved container for each compartment and arranged in line at the side of the receptacle, and means common to the containers attached to the receptacle for holding the containers in'alignment.

7. In a fire extinguisher, means forming separate compartments, pressure holding cylinders havin valved connections for attaching them in ividually to thecompartments, and common means attached to the said compartment formin means to extend over the adjacent ends of she cylinders when they are in alignment to protect them and hold them in such position.

8. A portable fire extinguisher comprising a conical vessel with a partition near the base thereof adapted to form two separate closed compartments the one near the apex for'containing powder and the other compartment 4. A portable fire extinguisher having afor-containing liquid, the extinguisher being held with the cone in an inverted positiom'a fixed nozzle at the apex of the cone pressure applying means havin separate valve connections with each 0 the compartments, means attached to the outer wall of the extin uisher having a cylindrical portion for

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