US340724A - moeison - Google Patents

Description

(No Model.) I

G. A. MORISON.

FIRE EXTINGUISHER.

N0. 349,7g4. Patented Apr. 27, 1886.

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a V A I WITNESSES N PETERS. Phnluiilhogmphnr. Waslungmn, r)v Cv UNITED STATES PATENT OFFICE.

GEORGE A. MORISON, OF JERSEY CITY, NEWV JERSEY.

FIRE-EXTINGUISHER.

SPECZEFIQ ATION forming part of Letters Patent No. 340,724, dated April 27, 1886. Application filed September 17, 1885. Serial No. 177,340. (No model.)

T 0 aZZ whom, it may concern:

Be it known that I, GEORGE A. MoRrsoN, of Jersey City, in the county of Hudson and State of New Jersey, have invented certain new and useful Improvements in Fire'EXtinguishers, of which the following is a full, clear, and exact description.

Reference is to be had to the accompanying drawings, forming part of this specification, in which similar letters of reference indicate corresponding parts in both the figures.

Figure 1 is a sectional side'elevation of one of my improved fire-extinguishers, parts being broken away. Fig. 2 is a sectional plan view of the same, taken through the broken line x as or m, Fig. 1.

The object of this invention is to provide fire-extinguishers for putting out fires in vessels and other places, and which shall be'simple in construction, convenient and inexpensive in use, and reliable in operation.

The invention consists in the construction and combination of the various parts of the fire-extinguisher, as will be hereinafter fully described and then claimed.

A represents a case, of galvanized sheet iron or other suitable material, and which may be made of any convenient size or shape. The case A is designed to be secured to the ceiling of a room by brackets B, or other suitable means. Around the base of the case A is formed an annular compartment, 0, and in the lower part of the shell of the said case are formed a number of openings, D, leading into the said compartment 0. In the lower part of the case A is secured by lugs E or other suitable means avessel having two concentric compartments, F G. The wallof the compartment F is made lower than the wall of the compartment G, and the openings D are near the bottom of the case A, as shown in Fig. 1.

H are three or more curved rods, the lower ends of which rest upon the bottom and against the wall of the compartment G or case A, and their upper ends rest against the upper part of the wall of the said case A. The middle parts of the rods H are connected by a wire, I, which rests in a groove in the shell of the glass case J, so that the said rods and wire serve as a stand to support the said case and secure it in place. The glass case J is made of oblong form, and is closed, except a small opening in its lower end, which is closed by a stopper, K, of rubber or other suitable noncorrosive material. The stopper K is perforated longitudinally, and in the said perforation is secured the open upper end of a small glass tube, L. The lower end of the glass tube L is closed, and in the side of its lower part is formed a recess, in which is secured by wire or other suitable means acartridge, M. With the cartridge M are connected the ends of two conducting-wires, N O, the other ends of which are connected with the poles of an electric machine or battery, and are also provided with an ordinary circuit-closer. The upper end of the case A is provided with a cover, P, in the center of which is secured a short tube, Q, open at both ends. To the upper end of the tube Q is secured a bulb, R, of thin rubber.

In using the fire-extinguisher the glass case J is filled with acid, and a suitable quantity of soda is placed in the three compartments C G F. The tube L and stopper K are inserted in the opening in the end of the glass case J, and the said case is secured in the stand H l, stopper downward. The glass case J should be of such a size as to contain enough acid to fill the compartments F G and overflow into the compartment 0. Vith this construction, when the electric circuit is closed, the circuit of electricity explodes the cartridge M, and thus breaks the glass tube L and allows the acid in the glass case J to flow out slowly into the central compartment, F, and cause the format-ion of carbonic gas to begin. hen the compartment Fis filled, the acid overflows into the next compartment, G, and the volume of carbonic gas generated is increased. hen the two compartments F G are filled, the acid overflows into the compartment 0, and the volume of carbonic gas generated is still further increased. As the case A becomes filled with carbonic gas the said gas enters the rubber bulb R, expands, and bursts the said bulb, and escapes into the room, extinguishing the fire. By separating the soda in this way into parts, and causing the discharge of theacid to be gradual, the boiling over of the acid and the consequent injury to whatever may be be-' neath the apparatus are prevented, and the entire quantity of soda and acid is utilized.

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

In a fire-extinguisher, the e0n1bination,with

5 the case A, having openings D and annular compartment 0, and the compartments F G, concentric with each other and with the compartment O, of the suspended glass case J, having discharge-openings in its lower end,

IO and the glass tube L, secured in the said discharge-opening, having closed lower end and provided with a cartridge, M, connected by wires N O with the poles of an electric ma chine or battery, substantially as herein shown and described, whereby a gradual formation of carbonic-acid gas is secured, as set forth. GEORGE A. MORISON. Vitnesses:

JAMES T. GRAHAM, 0. SEDGWIOK.

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