US1849644A

US1849644A - Fire extinguisher

Info

Publication number: US1849644A
Application number: US442135A
Authority: US
Inventors: Harlow T Stokes
Original assignee: INTERNAT FIRE EQUIPMENT CORP
Current assignee: INTERNAT FIRE EQUIPMENT CORP; INTERNATIONAL FIRE EQUIPMENT Corp
Priority date: 1930-04-07
Filing date: 1930-04-07
Publication date: 1932-03-15
Anticipated expiration: 1949-03-15

Description

March 15, 1932. H. T. STOKES 1,849,644

FIRE EXTINGUISHER Filed April 7, 1950 1 u 4.. ,a M AT/TIORNE .5

Patented Mar. 15, 1932 UNITED STATES PATENT OFFICE HARLOW T. STOKES, OF BROOKLYN, NEW YORK, ASSIGNOR TO INTERNATIONAL FIRE EQUIPMENT CORPORATION, OF WEST NEW BRIGHTON, STATEN ISLAND, NEW YORK,

A CORIBORATION OF DELAWARE FIRE EXTINGUISHER Application filed April 7, 1930. Serial No. 442,135.

This invention relates to fire extinguishers and particularly to an extinguisher adapted for use in motor vehicles.

This invention has for its salient object to provide an extinguisher so constructed that in case a fire breaks out the extinguisherwill iaiutomatically operate and extinguish the Further objects of the invention will appear from the following specification taken in connection with the drawings, which form a part of this application, and in which Fig. 1 is an elevational view partly in section showing an extinguisher constructed in accordance with the invention and mounted beneath the hood of a motor vehicle; and

Fig. 2 is a detail sectional elevation of the structure shown in Fig. 1.

The invention briefly described consists of an extinguisher casing, and means for clamping the casing to the tie rod beneath the hood of a motor vehicle. The extinguisher casing houses a frangible container having a fire extinguishing fluid or liquid therein and is provided with automatically operatable means for breaking the container and releasing the fire extinguishing liquid in case of fire.

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

lnthe particular embodiment of the invention illustrated there is shown a tie rod 10 of the usual construction which connects the radiator to the dash'in a motor vehicle. The-fire extinguisher comprises a casing 11 having a pair of clamps12 and 13 secured thereto and also secured to the tie rod 10. A frangible container 15 is mounted in the casing 11 and is held against endwisemovement by a spring 16 which engages one end of the container, a felt washer 17 preferably being interposed between the springlG and the container 15.

The extinguisher casing 11 has extending laterally therefrom intermediate the ends thereof 'a sleeve or projecting portion 20 which communicates with the casing 11 through an opening 21. The casing extension 20 has a head or cover 22 secured to the outer end thereof and perforated as shown at 23. Perforations 24 are also formed in the outer end of the sleeve or extension 20.

A central opening 25 is formed in the head or cover 22 and a bushing 26 is disposed in alinement with the opening 25 and extends inwardly into the casing or sleeve 20 from the head 22. A plunger shank 30 is slidably mounted in the bushing 26 and a spring 31 surrounds the bushing and engages a spiked or pointed head 32 formed on the inner end of the plunger.

A boss 33 is formed on the outer surface of the head or cover 22 and is flared or provided with a bell mouth 34 communicating with the opening 25. v

The outer end of the plunger shank 30 is shown as bifurcated and a link 35 is pivoted thereto. The head or cover 22 has formed thereon a projection 36 and in order to hold the'plunger 30 in its retracted or outer position the link 35 is swung at an angle to the shank 30 and the outer end of the link is connected by a fusible connection or link 40 to the outer end of the projection 36. The fusible link may be of any desired construction and in the drawings is shown as comprising a pair of

overlapping strips

41 and 42 which are connected together by fusible metal or solder.

In order to limit the actuation of the plunger by the spring 31 the link 35 has formed thereon a stop collar 43 which is adapted to engage the outer edge of the boss when the link is released and moves inwardly with the plunger.

The device operates as follows: when a fire breaks out beneath the hood of the vehicle the fusible link 40 will give way whereupon the link 35 will swing about the outer edge of the bell mouth 34 of the boss 33. The spring 31 will thereupon force the plunger inwardly causing the plunger head 32 to engage and break the frangible container 15 thus releasing the fire extinguishing liquid therefrom. The liquid will then flow by gravity through the

openings

23 and 24 and the fire will be extinguished.

Although one specific embodiment of the invention has 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. In combination, a casing, a frangible container in said casing, a tubular projection extending laterally from the casing intermediate the ends thereof and communicating with the casing, a plunger carried by said projection, a spring for forcing the plunger against said container, a pivoted link connected to the plunger and movable therewith into said projection, and fusible means engaging said link and a fixed member for holding the plunger against actuation, said tubular projection having discharge openings therein.

2. In combination, a casing, a frangible container in said casing, a tubular projection extending laterally from the casing intermediate the ends thereof and communicating with the casing, said projection having discharge openings therein, a plunger carried by said projection, a spring for forcing the plunger against said container, a pivoted link connected to the plunger and movable therewith, fusible means en aging said link and a fixed element for hol 'ng the plunger against actuation, and means on the link for limiting the movement of the plunger by said spring].1

3. combination, a casing, a frangible container in said casing, a tubular projection extending laterally from the casing intermediate the ends thereof and communicating with the casing, said projection having a discharge outlet therein, a' plunger carried by said projection, a spring for forcing the plunger against said container, a pivoted link connected to the plunger and fulcrumed on said projection, and fusible means enagin said link and a fixed element for holding the plunger a ainst actuation.

HARL W T. STOKES.