US867365A - Fire-extinguisher. - Google Patents

Description

PA'I ENTED OCT. 1, 1907.

W. nnAsxms. FIRE EXTINGUISHBR. APPLICATION FILED DEC. 31, 190 1.

INVENTOR ram. wish-warm, .u a

UNITED srn'rns WILLIAM E. HASKINS,

OF BARRE, VERMONT FIRE-EXTINGUISHER.

Specification of Letters Patent.

Patented Oct. 1, 1907.

Application filed December 31,1904- Serifil 239,086.

To all whom it may concern:

Be it known that I, WILLIAM E. HASKINS, a citizen of the United States, residing at Barre, in the county of Washington and State of Vermont, have invented a new and useful Improvement in Fire-Extinguishers, of which the following is a specification, accompanied by drawings forming a part of the same, in which- Figure 1 represents a side elevation of a fire extinguisher in position. Fig. 2 is a central vertical sectional view of the tank, and Fig. 3 is a perspective view of the bracket for supporting the tank.

Similar reference letters and figures refer to similar parts in the different views.

My invention relates to a method of construction of a fire extinguisher by which its operation is rendered automatic in case of fire. It embraces means of support for a fire extinguisher which may be of the ordinary pattern, so arranged that in case of a fire the extinguisher at once assumes an operative position, and also means of discharge of its contents, so arranged that when the extinguisher has automatically assumed an operative position by the action of the heat, the contents are automatically discharged upon the fire.

Referring to the accompanying drawings 1 denotes the tank of a fire extinguisher properly constructed to insure the necessary strength and the proper resistance to the chemical action of its contents. In the nozzle 2 is inserted a screw threaded plug 3 supporting a bottle 4 or equivalent means for containing a liquid acid. The tank itself is filled with properly prepared alkaline water as is ordinarily done in fire extinguishers of this class. This construction of the tank, bottle and bottle support is similar to that of fire extinguishers in common use and forms no part of my invention. Extending around the tank near the top are a number of openings 5 by which the contents of the tank are discharged, closed ordinarily by frictionally held stoppers 6.

I have shown a fire extinguisher designed to be supported against a wall and in such an extinguisher the openings 5 extend in a semi-circle half around the tank in order to throw the contents away from the wall and upon the fire. The number and position of such openings around the top of the tank, however, depends upon the position and opportunity of discharge of the extinguisher. The tank is inclosed below its center of gravity by semi-circular bands 7 provided with gudgeons 8 which engage slots 9 in the ends 10 of the bracket 11. The bracket 11 is fastened to the wall 12 by screws through the holes 13. The bracket 1]. is provided with a removable band 14 with overlapping ends 14, which are fastened with solder, easily fusible, preferably at about 130.

The band 14 normally holds the tank 1 slightly inclined from a perpendicular and in a position of unl stable equilibrium, as shown in Fig. 1. Other Ways of supporting the bracket 11 may be used without departing from my invention, for instance, the bracket 11 may be constructed with a downward extension below the ends 10, so formed to make a stand to support the fire extinguisher upon a horizontal surface.

The operation of my improved fire extinguisher is as follows :*The bracket 1.1, as shown in Fig. 3, is first attached to the wall in the desired situation, and the tank 1 having been properly filled is hung therein by inserting the gudgeons 8 in the slots 9. The upper part of the tank 1 is allowed to rest against the soldered band 14 which resists the downward tendency of the tank 1 due to gravity.

Upon the application of sufiicient heat the soldered band 14 divides as a result of the fusion of the solder and the parts of the band are separated by the weight of the extinguisher and assume the position shown by the dotted lines 15, Fig. 1. The separation of the band allows the tank to fall and assume the reversed position shown by the dotted lines 16, Fig. 1. In this inverted position the combination of the water and generating a gas, the pressure of which almost immediately forces out the frietionally held stoppers 6, and by the pressure of the gas precipitating with force the fire extinguishing liquid from the openings 5.

To refill the tank it may be easily removed from the bracket 11 by lifting the gudgeons 8 from the slots 9. After operation as above described the separated parts of the band 14 may be removed from the slots 17 in the bracket 11, and united as before by fusible solder. Upon the insertion of the refilled tank in position against the band 14 the apparatus is ready for a second emergency.

What I claim as my invention and desire to secure by Letters Patent is 1. In a fire extinguisher, the combination with a tank, of a bracket for removably supporting said tank, and means for detachably holding said tank in an inclined position in said bracket, said means being fusible at a predetermined degree of heat.

2. In a fire extinguisher, the combination with a tank, of a bracket for reinovably supporting said tank, and a semicircular retaining band for detachably supporting said tank in an inclined position, said band consisting of separate overlapping parts united by a fusible connection.

3. In a fire extinguisher, the combination with a tank, of a detachable band inclosing said tank below its center of gravity, gudgeons on said band, a bracket provided with slots to receive said gudgeons and a semicircular fusible band for detachably supportingsaid tank in an inclined position.

Dated this twenty-seventh day of December 1904.

' WILLIAM E. HASKINS.

Witnesses FRANK L. SMALL, FRANK F. CAVE.

the acid produces a violent chemical action, thereby. i

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