US1740665A - Fire extinguisher - Google Patents

Description

Dec; 24, 1929. c. c. MUNSON 1,740,665

FIRE EXTINGUISHER Filed Dec. 26, 1928 INVENTOR COOPER CHRISTOPHER Munsou.

BYATTY:

Patented Dec. 24, 192.9

STATES PATENT QFFICE FIRE EXTINGUISHER Application filed. December 28, 1928. Serial No. 328,382.

and objects are to provide a device of tnis class having greater ei'liciency and effectiveness in e guishlng fires, and which automatically becomes opei at a low and predetermined degree of hea Other ob' to provide a container for the extinguishing fluid having greater heating surface, to provide means for projecting the container with force whereby it is more easily fractured and wl tinguishing iuid spread over area, to provide means for more quickly heating the fuse, and to provide a pr tecting element for the fuse.

To accomolish tl ese objects, I provice a back plate adapted to be mounted on a wall,

a bracket projecting therefrom, a revoiubl socket pivotally mounted relative to the bracket, a ribbed container loosely mounted in the socket, a. liquid extinguisher within the container, a spring element interposed between the socket back plate and arranged to actuate the socket with a turning movement, and fuse elements serving to retain the container and socket in their normal position.

In the drawings: Figure 1 a sectional elevation of a fire extinguisher embodying the features of the present invention. Fig. 2 a front elevation of the A is a detail view of the actuating spring for the ocket. Fig. 5 is a detail view of the lower e Fig. 6 is a detail view of the upper fuse elcmen he drawings in detail, the back plate 11 is adapted to be secured to a wall, being provided with a screw hole 12 for that purpose, and has affixed thereto the supporting bracket 18, the lower hook i l and upper hook 15. The back plate and socket member 7.6,. which is journalled in supporting bracket 13, are preferably made of aluminum whereby heat is attracted and entra'iied to impinge on the container 17, and fuse elements 18 and 19.

The container is filled with a liquid era tinguisher 20, and has a fluted and ribbed surface 21 whereb 1 it a temoerature sufficient to fracture the wads thereof a ininimum of time. The elongated neck portion 22, of the container, is adapted to be inserted in socket member 16, to extend below the bottom thereof. By extending the container at the bottom as shown, it will attain the burst-- ing temperature in a minimum time.

The device is designed, however, to projectthe cont with force, upon the floor (not shown). To actuate the socket member 16 with a quick turning movement, I provide spring 23, interposed. between back plate 11 1d socket member 16. The container, being mounted in the socket, is thrown with force when the socket is released. The socket i..ember 16 is provided with a hook 2e, and the container has a projection 25. Lower hook 1%, and hook 2%, carry fuse element 18, and upper hook 15 and knob 25 carry fuse element 19. The socket member 16, has trunnion bearings 26, loosely journalled for free turning movement.

in use, the device is secured to a wall and above a floor, and with the container inserted in the socket with the bulb portion thereof, uppermost. hen the temperature of adjacent air rises to the melting point of the fuse, both are fractured, and the container and socket are released. T he spring then actuates the socket with a turning movement, and the container is projected with force upon the floor. As the socket turns the position of the bulb is reversed and the container is impinged on the floor, striking with the larger or bulb portion, and is fractured, t ereby releasing the extinguishing fluid and distributing the same over a larger area. Through the employment of the upper fuse element, the container is maintained in position normally in the container socket, thereby adapting the 0 same for use on ships and ocean vessels.

If the fuse elements fail to function through any cause, the container will explode on application of additional heat. To attain a more efficient heating of the container, 1 provide the same with the ribbed and fluted surface, and with the elongated neck which protrudes at the bottom of the holding socket. These afford increased heating surface, and,

together with the adjacent back plate, entrain the heated air currents, whereby the bursting of the container is more quickly attained.

From the foregoing description and draw ings, it may be seen that I have provided an efficient automatic fire extinguisher, capable of being mounted on a wall and above a floor, having a container with an extinguishing fluid, the container having greater heating surface, deflecting surfaces on the container, resilient elements for projecting the container with force upon the floor, and fusible retaining elements for the container and its supporting elements; all effective for extinguishing a fire, and automatically operative by application of a minimum degree of heat, approximately ten degrees lower heat than required by any heretofore designed extinguishing devices.

hat is claimed is:

1. In a fire extinguisher, the combination with a supporting member adapted to be secured to a wall, of a springbracket member extending from the supporting member, socket pivotally mounted in the extremities of the sping bracket member, afuse connected to the supporting member and to the socket, a coiled spring urging the socketmember against the retaining influence of the fuse, and a fragile container filid with an extinguishing fluid releasably mounted in the socket.

2. In a fire extinguisher, a supporting member adapted to be secured to a wall, a spring bracket member fixed to the supporting member and having its extremities projecting angularly therefrom, a socket member journalled in the extremities of the spring bracket member, a fuse connected to the socket member and supporting member and normally limiting the turning movement thereof, a coiled spring encircling the fuse and urging the socket member against the retaining influence of the fuse, a fragile container mounted in the socket member so as to be thrown therefrom upon the failing of said fuse, and an extinguishing fluid within the container.

3. In a fire extinguisher, a fragile container having a fluted surface, a fluid fire extinguishing material within the container, means for supporting the container adjacent to a wall and above a floor, including a supporting member adapted to be secured to a wall, a spring bracket member fixed to the supportting member, a socket for the container journalled in the spring bracket member, a spring tending to force the socket with a turning movement whereby the container is thrown to the floor, and a fuse retaining the socket against the tension of the spring.-

4:. In a fire extinguisher, a back plate adapted to be mounted on a wall, a bracket projecting therefrom, a revoluble socket piv- 'otally mounted relative to the bracket and supported tl1ereby,'a ribbed frangible container releasably mounted in the socket, a knob projections on the upper end of the container, a hook projecting from the back plate, a fuse element connecting the hook and knob member, and a spring element interposed between the socket and back plate and arranged to actuate the socket with a turning movement on rupture of the fuse element-,whereby said container is released from said socket.

5. In a fire extinguisher, .a back plate adapted to be mounted on a wall, a bracket projecting therefrom, a revoluble socket pivotally mounted relative to the bracket and supported thereby, a ribbed frangible container releasably mounted in the socket, an extinguishing fluid within the container, a hook projecting from the back plate, a knob projection on the top of the container, a fuse element connecting the knob projection and hook member, and resilient means for actuating the socket with a turning movement on rupture of the fuse element, whereby said container is released from said socket.

G. In a fire extinguisher, a fragile container, having a bulb-like body and an elongated neck, an extinguishing fluid within the container, a supporting back-plate adapted to be mounted above a floor, a supporting bracket extending angu-larly from the backplate, a socket having trunnion bearings and journalled in the supporting bracket, the container being releasably mounted in the socket with the elongated neck portion extending below the socket, fusible elements retaining the supporting elements in their normal supporting position, and resilient elements arranged to impel the container from the socket with force on rupture of the fusible elements.

In testimony whereof, I have hereunto affixed my signature.

(JOGPER CHRISTOPHER MUNSON.

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