US1912759A - Fire extinguisher - Google Patents

Description

June 6, 1933. F. J. CLARK FIRE EXTINGUISHER Filed July 30, 1931 INVENTOR Firm/2K /TC/ar/ B ATTzNEi-g Patented June 6, 1933 PATENT OFF FRANK J. CLARK, or BATTLE cR E Q iurcnieen FIRE nxrmenrsiaznn Application filed July 30, 1931. "Serial No. 553.908.

The main objects of this invention are:

. First, to provide a fire extinguisher that is simple in construction, economical to manufacture, and effective and eflicient in operation.

. Second, to provide a fire extinguisher having-means associated therewith whereby at will gas alone, an atomized mixture of gas and liquid, or liquid alone may be e ected under pressure from the device.

Third, to provide a fire extinguisher comprised of connected containers of gas under pressure and fire extinguishing l1qu1d for accomplishing the above purpose. a

Fourth, to provide means whereby whenan atomized mixture of gas and liquid is ejected from the device, the relative amounts of gas and liquid in the mixture are adjustable.

Objects relating to details and econom es of my invention will appear from the descr1pftion to follow. The invention .is defined and pointed out in the claims.

A structure which is a preferred embodiment of my invention is illustrated in .the accompanying drawing, in which:

. Fig. 1 is a fragmentary side elevation of a fire extinguisher embodying my invention.

Fig. 2 is an enlarged fragmentary view partially in vertical section showing the valve adjusted to eject liquid under pressure.

Fig. 3 is an enlarged fragmentary view of j the valve adjusted so as to eject gas alone, and

Fig. 4 is an enlarged fragmentary'section 7 ywith the valve adjusted so as to eject an atomized mixture of gas and liquid.

Referring to the drawing whlch illustrates a preferred embodiment of my invention, nu-

meral 1 indicates the fire extinguisher in general, which preferably consists of a gas container 2, a liqui'dcontainer 3, and a combined handle and connecting means 4:- The containers are connected and braced relative to each other by means of bands 5, opposed sides of which are joined between the containers by screws 6. j

The gas container 2 is provided wlth a nipple 7 having a pet cock 8 for opening and closing the same. The handle 4. 1s provided with spaced depending portions 9 and 10 having internal and externalthre ads respectively,

coacting with the upper threaded end of the nipple 7 and the upper threaded end of the liquid container 3, aslillustrated. i

The base 11 of the handle 1 is provided with a gas passage lQ extending fromithc depending portion9 to the depending portion 1Ofor connecting the inside of thegas tank with the inside of the liquid tank above the top of the liquid therein. The depending portion 10 is provided with a liquid passage 13 which ex tends from thevalve seat 14: downwardly for communication with the pipe 15 which depends from the portion 10 downwardly within the liquid container 3 and terminates just short of the bottom thereof.

The handled is provided with a nozzle 16 having an exit passage 17 communicating with the valve seat 14- The nozzle 16 r is shaped so that a hose, as indicated in Fig. 1, maybe readily attached thereto.

The valve seat 14 is circular and is provided with a rotary valve 18. The valve 18 is provided with a lever-like hand piece 19 having a pointerQO which is adapted to move over acalibratedscaleiQll for indicating the 75 position of the valve 18. j

. The port 22 connects thema-in gas passage 12wi-th the valve seat 14 so that the valve seat is provided with a gas passage, a liquid passage, and a exit passage. For connect ing these passages as desired, the valve 18 is of the so-called three-way type. It is pro vided with a gas port 23, a liquid port 24, and an exit port 25.

j Thegas tank 2 is relatively small as com- 35 paredwiththe liquid tank and is filled with a non-combustible: such as CO of a specific gravity greater than that of air and having an effective pressure of several hundred pounds. The liquidcontainer 3 is filled with fire extinguishing liquid such as carbon tetrachloride, an aqueous solution of fire ex tinguishing solution, or water only.

The fire extinguisher is operated by releasing the pressure of the gas through the pct cock Sfthereby putting the gas pressure on topof the liquid within the liquid container. This pressure forces the liquid through the pipeor tube 15 and the valve 18. j n j The valve 18 may be adjusted by moving the gas and exit ports are alined with the gas and exit passages. Fig. 4 illustrates the position of the valve for e ecting a vaporized or atomized mixture of gas and liquid. For

this purpose, the liquid, gas, and exit ports of the valve are positioned so as to communicate with their respective passages. The amount of gas, the amount of liquid, and the amount of the mixture of liquid and gas ejected from the device is ad ustable by varying the position of the lever 19.

If desired, partial openings of the device may be secured by shutting ofli' the gas and venting the pressure from the top of the liquid through the top of the valve 18. This is accomplished by turning the pet cock 8 so as to close the nipple 7 and adjusting the valve 18 to the position illustrated in Fig. 2.

When the device is operated in the above described manner, a highly efiicient and eifective stream of fire extinguishing fluid may be directedto a fire and the latter quickly extinguished. The nipple 7 preferably forms a part of the gas container 2 so that the latter may be renewed as desired without loss of pressure.

It is obvious that various changes and modifications may be made in the details of construction and design of the above specifically described embodiments of my invention without departing from the spirit thereof, such changes and modifications being restricted only by the scope of the following claims.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent is:

1. A hand sprayer comprising a gas container, a liquid container, and a combined handle and connecting means for said containers, said containers being disposed in side by side relation, means connecting and bracing said containers relative to each other, a nipple on said gas container having other for connecting the inside of said gas tank with the inside of the liquid tank above the liquid therein, a circular valve seat above the liquid container portion and a liquid passage extending downwardly from said seat and terminating in a threaded bore, a pipe threaded at its upper end into said bore and depending in said liquid container to a point short of the bottom thereof, a nozzle on said handle in line with said base and having an exit passage communicating with said valve seat, a rotary valve disposed in said Valve seat and having a lever-like hand piece provided with a pointer, said base having a calibrated scale under said pointer for indicating the position of said valve, said valve seat having a port connected to the gas passage, said valve being of the threeway type and'having a gas port, a liquid port and an exit port so as to provide by adjustment a stream of liquid, a vaporized combination of gas and liquid adjustable as to mixture, or a streamof gas.

2. In a hand sprayer, the combination with a gas container and a liquid container arranged in side by side relation, of a combined handle and connecting means for said containers comprising a loop-like grip, a horizontal base, a nozzle in line with said base, and a pair of spaced depending gas and liquid portions connected to the tops of said containers, a vertical gas passage in the gas portion, a horizontal passage in said base and nozzle extending from said vertical passage, a vertical liquid passage in the liquid portion terminating in a threaded bore, a pipe threaded at its upper end in said bore and depending into said liquid container, a gas passage in said liquid portion establishing communication between said horizontal passage and the interior of said container, a valve seat at the intersection of said liquid passage with the horizontal passage, a rotary three-way valve in said seat, a lever-like hand piece onsaid valve having a pointer, and a scale on said base under said pointer for indicating the vposition of said valve.

In Witness whereof I have hereunto set my hand.

FRANK J. CLARK.

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