US379708A - John e - Google Patents

Description

(No Model.)

J. E. LONG.

HAND FIRE EXTINGUISHER.

No. 379,708. Patented Mar. 20, 1888.

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Urine STATES JOHN E. LONG, OF BROOKLYN, NEW YORK.

HAND FlRE-EXTiNGUlSHER.

SPECIFICATION forming part of Letters Patent No. 379,708, dated March 20, 1888.

Application filed August 6. 1886. Serial No. 210,232.

To all whom, it may concern.-

Be it known that 1, JOHN E. LONG, a citizen of the United States, and a resident of Brooklyn, in the county of Kings and State of New York, have invented certain new and useful Improvements in Hand Fire-Extinguishers, of which the following is a specification.

My invention relates to that class of hand fire-extinguishers in which are employed a fluid-reservoir and a pump or other ejecting mechanism for forcing the fluid from the res ervoir and directing it upon a fire to effect its extinguishment,and has for its main objects to simplify, ,cheapen, and otherwise improve the construction, operation, and use of structures of the type alluded to.

. My invention consists, first, in interposing between the reservoir and the pump a stopcock for preventing the passage of the fluid chemicals from the reservoir to the pump during the disuse of the extinguisher, and thus providing against injury to its working parts by the corrosive action, if any, of the acids of the chemicals employed; and my invention consists, secondly, in forming or providing the reservoir with an inlet port or nozzle for the purpose of permitting the charging or filling of the reservoir in a convenient and expeditious manner, and in providing saidinlet port or nozzle with a stop-cock or other valvular device for preventing the accidental escape of the contents of the reservoir during the time the apparatus is not in use, and for permitting the entrance of air to the reservoir during the pumping out of the fluid therefrom; and my invention consists, thirdly, in the combination, with the pump and reservoir, of a pipe or passage-way leading from the reservoir to the pump, a pipe or passage-way leading to and through the reservoir, and valves for checking any backflow of the fluid through said pipes or passageways, all as will be hereinafter more fully explained; and my invention consists, furthermore, in certain details of construction, which will be hereinafter more particularly described, and pointed out in the claims.

The accompanying drawing represents in sectional elevation at contrivance embodying my several improvements.

A is the reservoir, and B the pump, prefer- (No model.)

ably located cxteriorly of the reservoir. The latter is provided at its lower end with a pipe, a, preferably soldered at the center of the bottom plate, 6, of the reservoir, at which locality the said plate or disk is formed with an aperture (designated by the letter 0) for the egress of the fluid passing through said pipe. The upper end of said pipe at is curved or bent to pass laterally through a perforation, e, in the periphery (or side wall) of the reservoir, and is joined, preferably, by soldering to one arm, (Z, of a T-coupling, O. A flange, f, is formed on the outer end of the arm d, and by means thereof the coupling O is soldered or other wise connected to the reservoir. WVithin the arm or branch d is provided a ball checkvalve, 2', a seat, m, therefor, and a wire disk, or, or other device for limiting the movements of the valve. To the lower branch or arm, of the coupling O is connected one end of a pipe, h, the other end of which latter is connected, preferably by solder, to the reservoir A. A stop-cock, J, is fitted in said pipe h and serves to control the passage of the fluid from the reservoir to the pump. tVithin the branch 9 of the coupling is provided a ball check-valve, r, a seat, 8, therefor, and a wire disk for confining the valve to the lower portion of the branch.

The upper branch or arm, k, of the coupling 0 is threaded interiorly and receives the lower threaded end of the pump-cylinder L, the upper end of which is supported laterally in an eye or yoke, M, projecting outwardly from the reservoir.

The top of the pump'cylinder is closed by a screw-cap, N, perforated for the accommodation of the pump or piston rod P, and a stuffing-box, Q, or other packing device, is provided for preventing leakage at this locality.

At a in the upper part of the pump-cylinder an air-vent is formed or provided to permit of the proper operation of the pump mechanism.

At the upper end of the reservoir is provided an inlet port or nozzle, B, through which the reservoir is charged or filled, and said inlet port or nozzle R is supplemented with a stop-cock, S, or other valvular device for preventing the accidental escape of the fluid contents of the vessel A, and during the use of the contrivance for permitting the entrance of air to the reservoir, so that the pump may perform its'int'ended functions.

In order to charge the reservoir, the fluid chemicals are simply introduced at-the nozzle R, and when the desired level is reached the stop-cock S is closed to prevent any exit of the fluid at this point. If found more desirable, the stop-cock S may be made-detachable from the nozzle and removed during the filling operation, after which it may be replaced again.

From the foregoing description of the construction of a contrivance embodying my improvements, taken in connection with the following explanations of the mode of operation thereof, any one skilled in the art can readily make and use fire-extinguishers involving my invention.

Supposing the reservoir to be filled, as shown, and if itbe desired to operate the extinguisher, the user of the extinguisher will open the cock S for a vent, and then open the cock .1 by turning down the handle j to the position shown in dotted lines, thus opening the passage-way between the reservoir and pump. He will then, by means of the cross-bar 19, work the piston-rod P and piston V in the usual manner of operating pumps, and the effect of this operation will be the ejectmeut in a stream at the aperture 0 of the extinguishing-fluid contained in the reservoir. During the upward movementof the piston the valve 1' is drawn from its seat and the valve i to its seat, checking any backflow, and the fluid in the reservoir is sucked into the branch 9 of the coupling C and into the pump-cylinder through the pipe or conduit h. During the downward movement of the piston the valve r is forced to its seat, thus preventing any backflow, and the valvet' from its seat, and the fluid in the pump is ejected through the branch d and pipe a out at the aperture or nozzle at c. The reciprocations of the pump piston may be continued, and the fluid alternately drawn into and forced out of the pump until the contents of the reservoir have been exhausted.

By locating the stop cock J between the reservoir and the pump it will be observed that during the disuse of the contrivance the fluid in the reservoir may be prevented from entering the pump, which is a great desideratum, since if this were permitted to occur the chemicals of which the extinguishing-fluid is composed might possibly corrode the parts of the pump and ultimately destroy their usefulness.

By providing the reservoir with an inletnozzle and combining with it a stop-cock it will be-seen that the vessel may be quickly and easily filled, that the escape of its contents may be effectually prevented, and that during the operation of the pump air maybe admitted 7 into the reservoir as the fluid is discharged-a provision quite necessary, as will be readily understood. By combining the pipes h and a with the reservoir and pump and employing v the check-valves r and 'i a simple, durable, and

effective contrivance is provided.

An advantage of considerable importance is derived by purchasers of contrivances made according to my invention in that as there are no parts which must be broken in order to operate the apparatus, there will be no occasion for discarding the extinguishers after usage, or sending them to the factory to be repaired and refilled. The work of refilling the reservoir after usage, it will be understood, may be easily performed by the purchaser or owner of the contrivance, and thus a considerable saving effected.

What I claim as new, and desire to secure by Letters Patent, is-

1. In a hand fire-extinguisher, the combina tion of a portable reservoir, a force-pump attached thereto, a pipe leading from the reservoir to the pump, a stop-cock in said pipe, at check-valve between said stop-cock and the pump to prevent the return of the fluid from the pump, a pipe leading from the pump,and a check-valve in said pipe, all substantially as and for the purpose set forth.

2. In a hand fire-extinguisher, the combination of'a portable reservoir, a force-pump attached thereto, a pipe leading from the reservoir to the pump and provided with a stopcock and a check-valve opening toward the pump, a pipe leading from the pump and provided with a check-valve opening from the pump, and a vent-opening formed through the wall of the reservoir and provided with a stop-cock for closing the same, all as and for the purpose set forth.

3. The combination, with the reservoir and pump, of a pipe or conduit leading from said reservoir to the pump, another pipe or conduit leading from the pump to and through the reservoir, and valves for checking any return of the vfluid through. said pipes or conduits, substantially as set forth.

Signed at New York, in the county of New York and State of New York, this 16th day of J une,,A. D. 1886.

- JOHN E. LONG.

Witnesses:

ANDREW W. STEIG-ER, J AOOB FELBEL.

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