US1445733A - Fire extinguisher - Google Patents

Description

P61129, 1923. l 11,445,733.. A.-E. WAGGONER.

' FIRE E-XNNGU'ISHER.

FILED MAY 23, 1919.

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Patented Feb. 2U, i923.

ALBERT E. WAGGONER, OF CHICAGO, ILLINOIS, ASSIGNOR OF ONEHALF TO GEO. W. DIENER MFG. CO., 0F CHICAGO, ILLINOIS, A CORPORATION 0F ILLINOIS.

FIRE EXTINGUISHJER.

Application filed May 23,.

To all (whom t may concern: l y

Be it known that I, ALBERTE. WAGGONER, a citizen of the United States, and a resident of Chicago, in the county of Cook and State of Illinois, have invented .certain new and useful Improvements in Fire Extinguishers, .of which the following is a full, clear, and exact description.-

The invention relates to fire extinguishers and more particularly to that type in Whichthere is provision for separately retaining a chemical and water in readiness to be mixed when occasion arises for the use of the extinofuisher.

' ne object of the invention is to provide an improved ex'tinguishervwhich can be used Without causing the chemical and water to be mixed when the extinguisheris inverted vin a fire drill to familiarize the employes with the use of the extinguisher.

Another object of the invention is to pron vide an `improved construction which causes the chemicalto be thoroughly mixed with the water before it escapes.

Another object of the invention is to provide improved means i'or retaining the fragments of a broken bottle which contain the acid or chemicalV so that it will not interfere-v with the mixture of the chemical and water.

Another object of the invention is to provide improved means for indicating whether the bottle-breaker has been operated, so that an inspector. can readily discern when the extinguisher is inoperative. j

The invention consists in the several novel features hereinafter set forth and more par- All `ticularlydefined byclaims at the conclusion hereof. y In the drawings: Fig. lis a side elevation of a fire extinguisher embodying the invention. Fig. 2 is a section. Fig.3 is a similar view showing the extinguisherinverted and the chemical-bottle broken. Fig. 4 is a detail of the receptacleor cup for the fragmentsof'the broken bottle. Fig. 5 is a detail of the bottle-holder or receptacle. Fig. 6 is a section taken on line 6--6 ofFig. 2.

The invention is exemplified in a fire extinguisher `comprising a tank 8 provided with a discharge nipple 9, a hose 10 connected to said nipple, a screw-threaded collar 11 having a flange 12 engaging the inner face of the top of the tank 8 and a cover 13 which is screw-threaded tothe collar 11 and 1919. serial No. essais.

provided with a ring 14ey for turning the cover on and off'the collar to secure the cover .and collar in place and form a tight enclosure for the top of the tank. A gasket 15 is interposed between the collar and the top. A screen 16 is provided in the tank adjacent the discharge opening leading to nipple 9. All of the parts thus far described may be of usual construction.

A botuehoider 17 is provided with' a flange 18 which is supported by lugs 19 on the collar 11 which are disposed-so that the flange 18 will be held between the'gasket 15 and said lugs to firmly secure the holder 17 normally suspended from the top 'of the tank and in place when the extinguisher is inverted'. A bottle 20 rests upon theiinperforato bottom 17 of the holder 17 A normally inverted cup 21 fits over the top and upper portion of the bottle and is provided with Alugs 22 which are adaptedf to strike the usual ledge on the bottle and break the latter when the cup issubjected to ablow by a breaker comprising a hammer 23 on a stem 24 which is slidably held` in the cover and is vprovided with a flanged top member 25.. A blow upon the member 25 will be transmitted through the stem 24 to the hammer 23 and thence to the cup 21 so that the lugs 22 will break the bottle. The upper portion of the inverted cup is' convergent,l .as at 26, and provided with lugs 27 which position the upper portion of the cup centrally inthe bottle-holder 17. Smallopenings 30 are formed adjacent the'upper portion of' the inverted cup 21 for the escape of the acid or chemical released when the bottle is broken and the'extinguisher is inverted. Holes 31 areformed at one side of, and adjacent the upper end of, the

'holder 17 so that the chemical can escape therefrom into the chamber of tank 8. The openings 31 are 'disposed in that side of holder 17 which is remote from the o-utlet nipple 9, so that the chemical cannot pass directly from the holder outlet. In practice, it has been found to sometimes cause injury to the operator if the chemical finds direct passage to the discharge without being mixed with water. A spring 29 is interposed between the head 25 and the cover. 13 to hold the breaker normally raised. A lug 31 is formed on the holder 17 which is adapted to fit in a notch in one of the lugs 19 to position the holder so that the holes In operation, the parts will be normallyv held in position shown in Fig. 2. At suoli time, the acid in the bottle 20 will be kept so that it will not evaporate or deteriorate becausel the cork can form an effective closure. It is sometimes'desirable to 'practice the operation of the fire extinguishers in fire-drills precisely the same 4as is done in actual use, including the inversion of the extinguisher as a whole, and this can be done without releasing any of the chemical in the bottle 20. I/Vhen, however, the extinguisher is to be used for a fire, the operator will invert the extinguisher and impart a blow to the mem 4ber 25 of the breaker which will break the seal 34 and cause the lugs 22 to break the bottle and release the acid. The acid or chemical normally held in bottle 20 will paSS gradually through the small openings in cup 21 and escape into the holder 17 and the tank 8, where it will mix with the water and form the desired extinguishing solution.

`The cup 21,when the extinguisher is inverted, and the cup 17, when the extinguisher is in. normal position, will retain the fragments of glass and prevent them from passing out into the chamber in the tank. By locating the openings 31 in cups 17, remote from the strainer 16, the acid must necessarily mix with the water in the tank 8 before it can reach the discharge.

A characteristic of the device is that when the tank has been inverted for a short time, and before all of the chemical has passed out ter in the tank, the holder with its imper'- forate bottom portion will retain the chemical in the holder until the tank is again inverted.

The invention is not to be understood as restricted to the details set forth, since these may be modified within the scope of the appended claims, without -departing from the spirit and scope of the invention.

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

1. In a fire extinguisher, the combination with a tank provided with discharge means, of a holder for a bottle containing a chemical and having an imperforate bottom portion and openings near its upper end, an inverted cup held in the holder and adapted to contain the fragments of a broken bottle and to restrict the outflow of chemical when the tank is inverted, and means to operate the cup to break a bottle.

2. In a fire extinguisher, the combination with a tank provided with discharge means, of a holder for a bottle containing a chemical, an inverted cup movably held in the holder adapted to contain fragments of the broken bottle and having lugs thereon for striking the bottle, and a breaker adapted to.

operate the cup to break the bottle.

3. In a lire extinguisher, the combination with a. tank provided with discharge means, of a holder for a bottle containing a chemical, an inverted cup movably held in the holder adapted to contain fragments -of the broken bottle and provided with means for striking the bottle, and a breaker adapted to operate the inverted cup to break the bottle.

ALBERT E. IVAGGONER.

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