US2521193A - Fire extinguishing system - Google Patents

Description

w. M. THOMPSON 2,521,193

FIRE EXTINGUISHING SYSTEM Filed Feb. 1, 1947 Z'mventor u WM W H Gflorneg Patented Sept. 5, 1950 FIRE EXTINGUISHING SYSTEM William M. Thompson, Erie, Pa., assignor to Thompson Mfg. 00., Inc., Erie, Pa., 2. corporation of Pennsylvania.

Application February 1, 1947, Serial No. 725,795

2 Claims.

This invention is intended to increase the utility of portable fire extinguishers by detachably connectin the horn to a pipe line leading to a location of high fire hazard. The extinguisher is thus normally in readiness to extinguish fires at this location without impairing its utility as a portable extinguisher for fires at other locations. In a preferred form, the holder has a stand pipe with its upper end receiving the horn and its lower end connected to the pipe line leading to the location of high fire hazard. Further objects and advantages appear in the specification and claims.

In the drawing, Fig. 1 is a perspective of a holder for a C02 fire extinguisher and Fig. 2 is a sectional view of a typical installation.

Referring to the drawing there is shown a portable fire extinguisher having a cylinder l containing CO2 and provided with a handle 2 and a valve 3 controlling the flow of CO2 through a flexible hose 4 to a horn 5. At the base of the horn is a disk ii having an orifice l permitting the desired flow. These parts are or may be of common construction.

The cylinder is stored in a holder having a base 8 provided with an upwardly extending seat 9 for the lower end of the cylinder. The base may be ermanently mounted for example by screws in in a floor i I or other support. Extending from the base are arms l2 carrying a ring [3 through which the cylinder may be lowered into its seat. The ring cooperates with the cylinder side Walls and holds the cylinder upright. This is of particular advantage in marine installations. A rubber band M on the cylinder prevents rattling.

At one side of the base is a stand pipe 15 havlllg its upper end receivable in the horn as the cylinder is lowered into the holder. At the upper end of the standpipe is a rubber bushing l6 having its sides engaging the inner surface of the horn and having a conical end I! making sealing engagement with the disk 6 around the orifice I. The bushing I6 is positioned so the horn seals with the standpipe as the cylinder is lowered into the holder. The seal is normally effected by gravity but if the weight of the horn is insufiicient an additional hold down may be provided. The relatively small diameter of the orifice 1 reduces the back pressure tending to lift the horn oil? the standpipe. The lower end of the standpipe is connected through a passage way l8 to a fitting 19 connected to a pipe line 20 leading 2 to a region of fire hazard. The line 20 may have one o more discharge horns 2| which, in the case of marine installations, may discharge in the engine room or any other desired location.

The extinguisher is thus at all times ready to discharge CO2 through the horn 2i to a region of known fire hazard.

The extinguisher is also at all times capable of being used as a portable extinguisher for fires in other locations by merely lifting the extinguisher from its holder. This increases the utility of the fire extinguisher without decreasing the availability of the extinguisher for fires in any location other than that served by the pipe line 20.

What I claim as new is:

1. In a fire extinguishing system for portable extinguishers oi the type having a C02 container connected by a flexible hose at its upper end to a discharge horn, the combination of a holder having an upwardly presented seat for the container, a standpipe at one side of the seat receivable in the horn as the container is lowered into its seat, a member of resilient material forming a seal between the standpipe and horn, and a pipe line leadin from the standpipe to a region of fire hazard.

2. In a fire extinguishing system for portable extinguishers of the type having a C02 cylinder connected by a flexible hose at its upper end to a discharge horn, the combination of a holder having an upwardly presented seat for the cylinder including a ring surrounding the cylinder side walls, a standpipe carried by the holder at one side of the seat receivable in the horn as the cylinder is lowered into its seat, a restricted orifice at the base of the horn, a member of resilient material forming a seal between the standpipe and the portion of the horn around the orifice, and a pipe line leading from the standpipe to a region of fire hazard.

WILLIAM M. THOMPSON.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 1,616,974 Josephson Feb. 8, 1927 1,744,733 Beames Jan. 28, 1930 2,050,032 Allen Aug. 4, 1936

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