US649281A - Fire-extinguisher. - Google Patents

Description

0. o mv.. 87 y a M d e t n e t a DI GW N N W .o D H. nm Olm 2r 9 4 6 n N FIRE EXTINGUISHER.

(Application tiled Apr. 24, 1899.)

(No Model.)

W T. N E V N .b. LL S S E N W W ATTORNEY YH: rignms Pnzns co. muro-urna.. wAsnw Grou, u4 c.

UNTTEE STATES PATENT OFFICE,

GEORGE HENRY DOWNING, OF NEV YORK, N. Y.

FIRE-EXTINGUISHER.

SPECIFICATION forming part of Letters Patent No. 649,281, dated May 8, 19O.

Application filed April 24,1899. Serial No. 714,171. (No model.)

T0 (v7/Z 'whom 'it 11mg/ con/cern:

Beit known that I, GEORGE HENRY DOWN- ING, a citizen of the United States of America, and a resident of New York city, county and State of New York, have invented and made certain Improvements in Fire-Extinguishers; and I do hereby declare that the following is a full, clear, and exact description and speciiication of the invention, reference being had to the accompanying drawings, forminga part of the same.

My invention relates to that class of fireextinguishers called handemachines and which are charged with an alkaline-carbonate fluid and an acid, the acid being contained in a closed receptacle, usually made of glass, while the alkaline carbonate is contained within the barrel of the apparatus, so that when in use for extinguishing a iire the acid and alkaline-carbonate iiuid are mixed to discharge carbonated water by breaking the vessel containing the acid and allowing it to act upon the alkaline carbonate. Many devices have been made and used to facilitate the above operation; but in nearly all apparatus heretofore devised practical difficulties have rendered the apparatus inefficient and soon destroyed or rendered useless. My invention is designed to remedy such defects and to provide an apparatus at once eiiicient and not liable to deran gement and to this end my invention consists in certain elements and combinations of parts fully set forth in this specication and claimed at the end thereof.

In order that persons skilled in the art to which my invention appertains may understand, construct, and use my invention, I will proceed to describe it, referring to the drawings herewith, in which- Figure l is a vertical central section of my apparatus. Fig. 2 is the same of the lower part of my apparatus, showing a modification of and an alternate method of construction.

A is the barrel of the apparatus.

B is the bottom head.

Gis the dome-shaped upper head, provided with the mouthpiece D, which mouthpiece D at its upper part is threaded to receive and be closed by a screw-cap E in a well-known manner.

F is a discharge-nozzle, open at all times, and to this 'nozzle F a rubber pipo and tip may be secured to direct the fiuid, when be ing discharged, upon the fire.

Within the barrel and centrally thereof is a socket or cup L, secured to the bottom head B. Fig. 2 shows an alternate construction. In this cup or socket a pipe G rests to center it within the machine and to prevent any side movement. Pipe G extends thence upward into the mouth or neck D a short distance, and upon the top of the pipe G rests an acidbottle I. This acid-bottle also extends downward within said pipe G, resting on the top of the pipe by a flange or bead near the top of acid-bottle I.

J is a rubber stopper in the neck of acid-bot; tie I, and when all is in position ready for operation the rubber stopper is held firmly in the bottle by the under side of cap E, which is screwed down firmly upon it. Y p

The extension of the pipe G into the neck of the apparatus D is for the purpose of se= curing the pipe G and the bottle I from any movement in any direction. The neck D secures it from side movement, and the pressure of the cap E when screwed firmly upon its rubber stopper J holds the whole internal structure from end movement. The weight II rests in the bottom of pipe G- when the apparatus is in upright position, as shown in the drawings; but when the apparatus is to be used for extinguishing a fire, the carbonated water being in the barrel of the apparatus to about the height W, the machine is turned upside down and the weight II falls upon the glass acid-bottle I, containing sulfuric acid, and breaks the bottle, discharging its contents into the carbonated water, and produces a heavy pressure of carbonio acid and water, which is thrown upon the iire by the operator through nozzle F in a well-known manner.

The apparatus is recharged, of course, for another operation.

Having now fully described my invention and the manner in which I have embodied it, what I claim as new and as myinvention, and desire to secure by Letters Patent, is

In a hand lire-extinguisher; the combination consisting of the barrel A constructed substantially as specified with retaining projection within the barrel at its base B; neck D at its upper end closablo by screw-cap E pipe ICO pipe G, from end movement; Weight H 10- 1o cated Within the pipe G, al1 constructed, arranged and combined to operate substantially as and for the purposes specified.

GEORGE HENRY DOVVNING.

Witnesses:

JAMES M. HICKS, CHARLES W. LOW.

Images