US596861A

US596861A - Clotilde f

Info

Publication number: US596861A
Authority: US
Publication date: 1898-01-04
Anticipated expiration: 1915-01-04

Description

UNITED STATES PATENT Erice.

CLOTILDE F. B. DURAND, OF MONTREAL, CANADA.

PORTABLE FIRE-EXTINGUISHER.

SPECIFICATION forming' part of Letters Eatent No. 596,861, dated January 4, 1898.

Application filed April 4, 1896. Serial No. 586,195. (No model.)

To @ZZ whom itmagz/ concern:

Be it known that I, GLOTILDE FRANCOISE BELLE-MAIN DURAND, a citizen of France, residing in Montreal, Province of Quebec, Canada, have invented a new and useful Improvement in Portable Fire-Extinguishers, of which the following is a specification.

Myinvention is an improvement in the class of hand or portable fire-extinguishers which are adapted to eject a saline solution by means of the pressure of a gas with which the extinguisher is charged.

The feature of novelty is the construction and arrangement of a lever in connection with the discharge nozzle and valve, as hereinafter described.

In the accompanying drawings, Figure 1 is a central longitudinal section of my improved nre-extinguisher. Fig. 2 is a similar section of the discharge end of the fire-extinguisher, showing the valve open. Fig. 3 is a perspective view illustrating the manner of using the extinguisher. j

The hollow body A of the extinguisher resembles an ordinary ginger-ale bottle, and is preferably constructed ofglass of such thickness as to withstand the pressure of the gas.

used for charging the same. The cylindrical neck a of the body A is screw-threaded exteriorly to adapt it for attachment of the metal head or breech B, which is screwed thereon, as shown `in Figs. 1 and head B has a lateral discharge nozzle or beak l?, Whose central longitudinal passage leads 'to a discharge-orifice c from the mouth proper of the body A, which is in the center of the base or diaphragm d of the head B. 'Ihe outer side of such diaphragm d is constructed with an annular projection e, forming a seat for the valve or stopper C. The latter isv composed of a iiexible elastic disk lor diaphragm f and an inilexible T-shaped metal piece g. The parts f g are connected by means of a socket formed in the piece g and which receives a central projection of the diaphragm f. The edge of the latter is clamped and held between an annular shoulder of the head B and a tube or cylinder h, that screws into the tubular neck of the head, as shown. The means for operating the valve G is a curved leverD, which is pivoted in the outer end of the screw-tube h and Whose free The said end c' normally extends over and practically closes the nozzle h, Fig. l, thus excluding dirt and other foreign substances from the latter. The stem of the valve-piece g is pivoted eccentrically at its outer end to the head or pivot end of the lever D-that is to say, it is pivoted at one side of the pivot of said leverso that when the valve C is closed, as in Fig.

l, or open, as in Fig. 2, it will be held in such position by the gas-pressure Within the receptacle A.

It Will be understood that the valve-diaphragmf, being made of soft rubber or some other duly elastic material, is compressed and indented by the seat c when the v alve C is closed, Fig. l, so that the valve may recede to a very slight extent Without permitting es cape of the contents of the receptacle A, and suc-h recession necessarily occurs when the valve-pivot passes the center in the act of closing the lever D. The latter rests or bears upon the head B on the other side of the pivot, and is thus limited in its closing movement.

The enlarged head of the piece gis rounded or conical and adapted to bear upon the valve or diaphragm adjacent to the central projec tion of the latter, so as to afford due support to the diaphragm when closed, and yet permit the piece g to be inclined laterally, as shown in Fig. 2, when the valve is open, Wit-hout unduly stretching the latter.

The extinguisher is shown, Fig. l, provided vvith means for suspending it from a hook or nail, Which consists of a perforated metal plate j, secured to the upper rounded end of the receptacle A by band or strap 7c, passing around the latter.

` To prepare the extinguisher for use, the

head B is removed and the receptacleA filled to about two-thirds of its capacity with some saline solution, say a weak aqueous solution of ammonia. Then the head B is screwed on, the valve C opened, and the beak Z1 held to the mouth of a hose or pipe attached to the holder or receptacle containing liquid strongly charged with gas-say carbonated Waterand the receptacle A is thus filled to about four-fifths of its capacity.

In using the extinguisher the receptacle may be held in one hand and the valve-lever pulled by the other, as illustrated in Fig. 3.

IOO

closed by gas-pressure within the bottle and the lever rests in locked position upon the zo head of 1bile bottle, as shown and described.

.cLoTILDE F. B. DURAND.

Witnesses:

I. A. O. LA BADIE, FRANQOIS X. LEGAVALIER.