US1888316A

US1888316A - Fire extinguisher

Info

Publication number: US1888316A
Application number: US447875A
Authority: US
Inventors: Gilbert Victor George William
Original assignee: AMERICANLA FRANCE AND FOAMITE
Current assignee: AMERICANLA FRANCE AND FOAMITE; AMERICANLA FRANCE AND FOAMITE Corp
Priority date: 1929-04-30
Filing date: 1930-04-26
Publication date: 1932-11-22
Anticipated expiration: 1949-11-22

Description

NOV. 22, 1932. v Q W GILBERT l 1,888,316

FIRE EXTINGUISHER Filed April 28, 19:50

IN VEN TOR.

Patented Nov. 22, 1932 'UNITED STATES PATENT ori-"1er,

VICTOR GEORG-E WILLIAM GILBERT, OF LONDON, ENGLAND, ASSIGNOB. 10 AMERICAN- LA FRANCE AND FOAMITE CORPORATION, OF NEW YORK, N. Y., A. ACORPORATION NEW YORK FIRE EXTINGUISHER Application filed April 2S, 1930, Serial No. 447,875, and in Great Britain April 3,0, 1,929.

The object of the invention is an improved foam extinguisher of the invertible type, in which an externally operated stopple is adapted to close both the discharge outlet and the so-called inner container and having novel provision for mounting the inner container, more particularly in its relation tothe discharge nozzle, for securing the inner container against displacement when the apparatus is inverted and'for facilitating removal of the stopple or valve member which normally closes that container, all as illustrated in preferred form in the accompanying drawing.

Fig. 1 is a vertical section of an extinguisher having the invention applied and Fig. 2 a horizontal section on the line II-II of Fig. 1.

The outer solution container 1 is provided with the usual closure cap 2 having threaded connection with the neck casting 3, which is preferably arranged to support the inner removable container 4. To that end a seat structure 5 in the form of a ring is located below the neck opening and spaced from it by depending cage bars 6 which, together with the structure 5, may be cast integrally with the neck. The bars are set approximately flush with the neck opening so as to leave it entirely unobstructed to receive a stopple or valve-member 6a of a diameter substan- '1 itthtfu kTht 1e' tml y equa O a O le nec e S Opp tudinal movement when the extinguisher is is manually operated by any appropriate means, being shown attached to a stem 7 which passes through a gland 8 in the cap 2 and terminates in a knob 9 having a bayonet slot 10 for engagement with pin 11 when the knob is depressed.

The ring structure 5 constitutes a combined support, for the inner container, and a discharge fitting and in its latter function embodies an enlargement 12 which projects inwardly, to bring its upper face Within the projection of the neck opening and beneath the stopple, and which has a discharge outlet 18 in that face communicating with the nozzle 14C. The nozzle is also a part of the neck-ring casting and projects outwardly to and through the dome of the outer container. By reason of the large diameter stopple which the neck and the bars 6 accommodate, the top face of the enlargement 12 can accommodate an Vadequately sized foam outlet without encroaching unduly v`on the space within the ring which is roccupied by the inner container 4 and the latter is formed Vwith a groove or reentrant portion ltrex- 'tending `its full length and dimensioned rto embrace or accommodate enlargement 12, asy

indicated, so asto permit the container to be withdrawn through the neck opening.

The top face of the ring structure consti- Voccupies the desired position with respect .to

the seat face of the ring structure thebottom of the spacer ring seats on a shelf or a number of lugs 17 which project inwardlyfrom the lower end of ring V5. lThe depth of

rings

5 and 16 is usually'adequate to steady the container 4 against lateral movement but other provision for that purpose may be made if desired.

To hold the inner container against longiinverted, I provide a compression spring 18, the lower end of which bears against a crossbar 19 arranged just below the top of container land by means of which bar the container can readily be withdrawn for cleaning. -In the preferred form illustrated the upper end of spring 18 bears against and may be secured to the face of the stopple so as to lift the same and open the container and outlet as soon as stem 7 is released, while Vstill holding the container against its seat in the ring structure. In this respect spring 18 serves to assist the usual valve spring 20.

Having now described my invention, I claim:

1. In a fire extinguisher the combination of an outer container, an inner container supporting-member therein, a stopple adapted to seat on an upper face of said member, said face having an outlet for foam discharge, an inner container adapted for support on said member and having a seat arranged for engagement with said stopple When the same 1s 1n engagement with said surface.

2. In a lire extinguisher having inner and outer solution containers, the combination of a neck casting for the latter having a. depending ring structure adapted to support said inner container and a neck opening above said ring structure through Which said inner container is removable, an externally operated stopple adapted to engage and close the inner container and also to seat on the upper surface of said structure and a discharge nozzle connected with an outlet in the seat face of said ring structure and also closed b said stopple.

' 3. A re extinguisher comprising an outer solution container, a neck casting therein having depending cage bars and a ring supported thereby, an inner container arranged to seat on said ring with its upper end below the neck opening, a discharge outlet in the upper face of said ring,a stopple of substantially the full diameter of the neck adapted to overlie and close both the inner container and the discharge outlet and means for holding the inner container against its seat when the extinguisher is inverted.

4. The combination set forth in the preceding claim in which the inner container rests with its upper end flush with theV upper surface of said ring and is held against its seat by a sprin 5. In a re extinguisher, the combination of inner and outer solution containers, said outer container having a neck opening for the insertion of the inner container and also having a seat structure depending from the neck arranged to support said inner container, a stopple for the latter, a spring urging the stopple toward its open position and also engaging the inner container to hold it on its seat, a closure cap for said neck opening and stopple operating means carried thereby.

6. In a fire extinguisher the combination of an outer solution container having a neck opening and a closure cap therefor, an inner container insertable through said opening, a stopple and means normally holding the same in position to close the inner container and a spring bearing on the latter to hold the same against displacement When the extinguisher is inverted, said spring also arranged to open the stopple when said holding means is released.

7. In a lire extinguisher the combination 0f an outer container having a neck opening, an inner container insertable and removable through said opening, said inner container having a reentrant portion or groove extending the length thereof, a foam outlet member In testimony whereof, I have signed this 7o specification.

VICTOR GEORGE WILLIAM GILBERT.