US1203162A - Portable fire-extinguisher. - Google Patents

Description

E. J. WARiNG.

PORTABLE FIRE EXTING'UISHER.

APPLICATION men FEB 29, 1916.

1,203,162. Patented 001:. 31,1916.

WITNESSES: I

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UNITED STATES PATENT OFFICE.

EDWARD J. WARING, OF NEW YORK, N. Y., ASSIGNOR TO PYRENE MANUFACTURING COMPANY, A CORPORATION OF DELAWARE. 1

PORTABLE FIRE-EXTAINGUISHER.

Specification of Letters Patent. P te t t 31, 191

Application filed February 29, 1916. Serial N 0. 81,084.

To all whom it may concern: 7

Be it knownthat I, EDWARD J. WARING, a citizen of the United States, and resident of the city, county, and State of New York, have invented certain new and useful Improvements in Portable Fire-Extinguishers, of which the following is a specification.

This invention relates to a portable fire extinguisher of the type in which the fire extinguishing liquid is expelled by means of pressure, having more particular reference to an extinguisher in which a gas is generated at the time the extinguisher is brought into use by the action of a suitable re-agent upon a chemical.

One of the objects of the invention is the provision of a simplified device of this class in which a more complete dissolution of the reacting compound is attained, resulting in a greater volume and pressure of gas.

Another object of the invention is to pre vent the discharge outlet of the extinguisher from being blocked or clogged by undissolved particles of the chemical compound, which are prevented from passing or being forced into the compartment containing the fire extinguishing liquid, as will be explained more fully hereinafter.

For further comprehension of the invention reference will be had to the following description taken inconnection with the accompanying drawings, and to the appended claims in which the novel features of theinvention are more particularly set forth.

Figure 1 is a vertical sectional view, illustrating one embodiment of the, invention.

' Fig. 2 is a vertical sectional view, illustrating a modification of the invention.

Referring to Fig. 1 of the drawings, the extinguisher is divided into two compartments, one of which, 2, acts as a receptacle for the fire extinguishing fluid, while the other, 3, acts as a gas generatingchamber and is adapted to contain suitable reacting materials. These compartments are separated by a horizontal partition wall 1,-which may have a centrally disposed depression or cup 5. As here shown the casing ofjthe extinguisher is formed in two parts connected together by means of an exteriorly screwthreaded ring 6 on the upper end of the liquid receptacle 2 which engages an interiorly screw-threaded flange or ring 7 proj ecting downwardly from the gas chamber 3,

and partition wall 4. The gas chamber 3 may also have a screw-threaded neck 8 closed by a cap 9. Communication between the gas chamber '3 and receptacle 2 is provided through the dividing partition wall by means of a cup 5 and a pipe or tube 12, which is connected at its upper end to the cup 5, which is attached to and extends on either side of the partition wall l, as shown. The tube 12 1 extends to a point near the bottom of the receptacle 2, the top of this tube being covered by a screen 13, below whichis a one way valve, comprising a ball 14 adapted to seat upwardly on a seat 15 and retained in proximity to the latter by a pin 16. To prevent escape of the solid materials within the gas chamber into the cup 5 a baflie wall 20 is mounted on the partition 4, which wall may be conveniently formed by extending the cup 5 upwardly above the partition 4, as shown in the drawings. The cup 5 is adapted to form a receptacle for a bottle or container 21 for a suitable reagent (such as an acid) the mouth of the container being closed by a loose-fitting stopper or cover 22, while the container is in an upright position. lVhen the device is inverted, a wire cage or screen 23, secured to the cap 9, bearing against the container 21, holds the same in position. The container may be spaced from the bottom of the cup 5 by means of the ribs 5.

To operate the device the same is inverted, causing the stopper 22 to fall away from the container 21 and releasing the acid, causing the same to act upon the chemical (salt) in the chamber 3 and generate gas. This gas passes out around the container 21 in the 'cup and through the tube 12 to the receptacle 2, forcing the fire extinguishing liquid out through the screen 36 and hose 35. In order to obviate any chance of the gas generated in the chamber 3 from being trapped in the portion of the chamber surrounding the'wall '20 and adjacent the partition 4 by the chemicals 1n the chamber when the extinguisher is inverted, one or more conduits or openings are provided which permit of passage of the gas from a point adjacent the partition 4 into the cup 5 and thence to the tube 12 and thus prevent the same forcing the chemicals into the cup 5, tube 12 and into the compartment 2 with the fire extinguishing liquid.

As shown in Fig. 1, these conduits may be said partition into said provided by perforating the wall 20, as at 25, to form a foraminous baffle wall; the openings or perforations constitute the conduits above mentioned.

In the modification shown in Fig. 2, the liquid receptacle 2, gas chamber 3, and partition wall l are provided, similar to the construction shown in Fig. 1, the wall 4 having the central depression or cup 5 and depending pipe 12 controlled by the valve.

14, the acid container 21 being placed in the cup 5, the wall of the cup 5 being continued upwardly, as at 20, to form abaffle wall. The cup 5 is retained therein by an open cage 27, secured to the cap 9. In this embodiment (Fig. 2) of the invention the conduit for preventing the generated gas from being trapped is provided by one or more tubes 30 bent to U-shaped and straddling the baffle wall 20, with one end in proximity to the partition Wall 4 and the other end projecting into the space between said wall and the acid container 21, as shown. The importance of preventing the gas from being trapped and thus forcing a part'of the chemicals, including the'uncombined acid, into the fire extinguishing liquid inthe compartment 2, is not only to prevent the clogging of the passages, which might render the device useless at a critical time, but also to avoid the chance of the acid being discharged with the fire extinguishing liquid upon articles which would be injured thereby.

As many changes could be made in the above construction and many apparently widely different embodiments of my invention designed without departing from the scope thereof I intend that all the matter contained in the above description or shown in the accompanying drawings shall be interpreted as illustrative merely of an operative embodiment of my invention and not in a limiting sense.

Vhat I claim is:

1. In a fire extinguisher, in combination,

a receptacle for the fire extinguishing liquid,

a gas generating chamber, a partition wall separating said gas chamber and fluid receptacle, communicating means through said partition between said fluid receptacle and gas chamber, a baffle wall extending from gas chamber and adapted to prevent passage of the solid products of reaction from the gas chamber into said communicating means, and a conduit for the gaseous products of combustion leading from the space surrounding said baflie wall to the spaceinclosed by the baflie wall.

2. In a fire extinguisher, in combination, a receptacle for the fire extinguishing liquid, a gas generating chamber, a partition wall separating said gas chamber and fluid receptacle, communicating means through said wall betweensaid gas chamber and fluid receptacle, a foraminous extension mounted on said wall surrounding said communicating means.

@L. In a fire extinguisher, in combination, a receptacle for the fire extinguishing fluid, a gas generating chamber, a partition wall having a cup shaped portion separating said gas chamber and fluid receptacle, communicating means through said cup shaped-portion between said gas chamber and fluid receptacle, an acid container positioned in said cup shaped portion, and a foraminous extension from said cup shaped portion above said partition adaptedto act as a baffle wall to prevent passage of the solid products of reaction into said cup shaped portion.

5. In a fire extinguisher, in combination, a receptacle for the fire extinguishing fluid, a gas generating chamber, a partition separating such gas chamberand fluid receptacle, an acid container positioned in said gas chamber, and a foraminous baffle wall surrounding said acid container, the space inclosed by said baflie wall being in communication with the said fluid receptacle.

6. In a fire extinguisher, in combination, a receptacle for the fire extinguishing fluid, a gas generating chamber, a partition separating such gas chamber and fluid receptacle, an acid container positioned insaid gas chamber, a foraminous baflie wall surrounding. said acid container, and a pipe providing communication between said gas chamber and fluid compartment, said pipe communicating with the space inclosed by the said baffle wall. I

Signed at the city, county and State of New York, this 28th day of February19l6.

EDWARD J. WARING.

' Copies of this patent may be obtained for five cents each, by addressing" the Commissioner of Patents,

Washington, I). C.

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