US1844879A - Fire extinguisher - Google Patents

Description

3 1932. w. B. BRONANDER 1,844,879

FIRE EXTINGUISHER Original Filed April 18. 1927 M6 AM MW zsizle ATTORNEYS Patented Feb. 9, 1932 PATENT OFFICE WILHELM IB. BRONANDER, OF MONTCLAIR, NEW JERSEY FIRE EXTINGUISHER -rigina1 application filed April 18, 1927, Serial No. 184,510. Divided and this application filed November 1, 1929. Serial No. 404,189.

This invention relates to fire extinguishers. More particularly stated, the invention relatesto a fire extinguisher so constructed that it will automatically release fire extinguishing fluid in case of fire or can be manually manipulated to eject the fluid on the fire.

The invention has for its salient object to provide a simple and practical extinguisher of the type specified that can be manually 1o operated or will operate automatically to release the fire extinguishing fluid in case of fire.

Another object of the invention is to provide an extinguisher of the manually operable type having a container so constructed and arranged that the user can see at a glance whether there is a supply of fire extinguishing fluid therein.

Another object of the invention is to provide an extinguisher so constructed and arranged that the stream of fire extingushing fluid can be directed by the user of the device.

Further objects of the invention will ap pear from the following specification taken in connection with the drawings, which form a part of this application, and in which Fig. 1 is a sectional elevation of a fire extinguisher and support constructed in accordance with the invention;

Fig. 2 is a bottom plan view of the device shown in Fig. 1;

Fig. 3 is a fragmentary sectional elevation showing a different manner of securing the extinguisher container to the closure for the container; and

Fig. 4 is a top plan view of the device shown in Fig. 1.

The invention briefly described consists of a fire extinguisher and support comprisng an extinguisher having a container preferably formed of transparent frangible material such as glass, a cap secured to the container by means including fusible elements, a stationary support engaging the cap and supporting the container and a pump device carried by the cap and extending into the container. The connection between the cap and container is preferably made by a plurality of strips engaging the cap and engaging a common member disposed beneath the container, the connections between the strips and the common supporting member including one or more fusible connections.

Further details of the invention will appear from the following description.

This application is a division of application Serial No. 184,510, filed April 18, 1927, and issued as Patent No. 1,769,618.

In the embodiment of the invention illustrated in Fig. 1, the extinguisher comprises a top plate or cover 120 having an annular recess or groove 121 at its outer periphery and a container body 122, preferably formed of glass, is secured to the top plate or cover 120 by means of a plurality of straps 123. The straps are preferably formed of thin sheet metal and have hooks 125 at their upper ends which extend over the outer periphery of the cap 120. At their lower ends the straps are connected to a dished disk 128 by fusible solder as shown at 129. The disk may have a central opening 130 formed therein.

The cap or cover 120 has an upwardly extending boss 135 through which extends the piston rod 136 of the pump.

The boss 135has lugs 138 projecting laterally therefrom which are received by V- shaped notches 139 formed in arms 1 10. The arms 140, however, are bifurcated extensions of an arm 1 11 which is rigidly connected to a back plate or support 142.

The pump may be of any desired form or shape but in the embodiment of the invention shown in Fig. 1 consists of an elongated cylinder 17 secured at its upper end within the boss 135 and having a port 25 at its lower end controlled by a ball check valve 26. The piston 23 is secured to the lower end of the piston rod 136 and a handle 30 is secured to the upper end of the piston rod and has a nozzle 33 formed therein. The piston rod 136 is hollow and aball check valve 31 is pro vided at the upper end thereof and between the hollow piston rod and the nozzle. It should be understood that any other form of pump may be used if desired. 7

The operation of the pump should be clear without a detailed description but may be briefly outlined as follows: On the up stroke of the piston a charge of fluid is drawn into the cylinder 17 and on the down stroke this charge is forced upwardly through the hollow piston rod and nozzle 33.

In the form of the invention illustrated in Fig. 1 it will be evident that in case of fire the soft solder connections 129 will melt and the straps 123 will be forced apart by the weight of the container 122, thus permitting the container to be released from the cap 120. In this manner the fire extinguishing liquid will be automatically released.

Fig. 3 illustrates a slightly different form of support for the container or receptacle 122. In this form of the invention a plurality of rods 1 15 are carried by the cap 120 and extend downwardly, the lower ends being threaded as shown at 1&6. A disk 1 17, preferably formed of spring metal, is provided with openings 148 so located as to receive the rods 1 15 and the container 122 is seated in a central opening 149 formed in the disk 147. Nuts 150 are mounted on the rods 145 and are preferably formed of fusible solder or soft metal. The nuts can be screwed up sufficiently to place a tension on the disk 147 which thus exerts a resilient force acting to maintain the seal between the upper edge of the container 122 and the cap 120. Furthermore, if the pressure in the container becomes too great for any reason, the resilient pressure exerted by the disk 147 will permit the longitudinal movement of the container 122 to an extent sufiicient to relieve the pressure.

It will be evident that in case of fire the nuts 150 will melt, releasing the disk 147, which in turn will release the container 122.

From the foregoing description it will be evident that a simple and practical form of fire extinguisher has been designed and that the extinguisher can be operated by hand to direct a stream of fluid on a fire or will operate automatically in case a fire occurs when there is no one present to operate the ex tinguisher.

Although certain specific embodiments of the invention have been particularly shown and described, it will be understood that the invention is capable of modification and that changes in the construction and in the arrangement of the various cooperating parts may be made without departing from the spirit or scope of the invention, as expressed in the following claims.

What I claim is:

1. A fire extinguisher comprising a container, a closure for the container, a plurality of members connected to the closure and extending substantially throughout the length of the container, and means carried by the ends of said members and engaging the bottom of the container, said means being connected to said members by a fusible connection.

2. A fire extinguisher and support therefor comprising a container, a closure for the container, means for supporting said closure, and means including a heat responsive fusible connection for embracing and securing the container to said closure, said connection being arranged to fuse and release the container in case of fire.

3. A fire extinguisher comprising a container, a closure for the container, means for supporting said closure, means including a fusible connection adapted to melt in case of fire, for securing the container to the closure, said securing means being incapable of supporting the container when the fusible connection melts, and pumping means carried by the closure and con'nnunicating with the interior of the container for discharging fire extinguishing fluid therefrom.

4. A fire extinguisher comprising a con tainer, a closure for the top of the container, and means including members carried by said closure, a resilient disk engaging the bottom of the container and a fusible connection between the disk and at least one of said members for releasably securing the container to said closure, said fusible connection being arranged to give way under the action of heat and said members and disk being incapable of supporting said container upon destruction of said fusible connection.

5. A fire extinguisher comprising a container, a closure for the top of the container, and means including members carried by said closure, a disk engaging the bottom of the container and a fusible connection between the disk and at least one of said members for releasably securing the container to said closure, said fusible connection being arranged to give way under the action of heat and said members and disk being in capable of supporting said container upon destruction of said fusible connection.

6. A fire extinguisher comprising a container, a closure for the container, and means including a resilient member and a fusible connection for securing said container to said closure, said connection being arranged to give way in case of fire, and being incapable of supporting the container when the fusible connection melts, and pun'iping means carried by said closure and communicating with the interior of the container for discharging fire extinguishing fluid therefrom.

VILHELM B. BRONANDER.

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