US2069709A - Holder for pressure medium containers or cartridges - Google Patents

Description

Feb. 2,. 1937. D. MAPES 2,069,709

HOLDER FOR PRESSURE MEDIUM CONTAINERS OR CARTRIDGES Filed Oct. 17, 1934 2 Sheets-Sheet l 7 9 1g 1. /3 I /8 x. l 8 6 /6 /5 INVENTOR DAN/1. MA PES W A ORNEY Feb. 2, 1937. MAPES 2,069,709

HOLDER FOR PRESSURE MEDIUM CONTAINERS 0R CARTRIDGES Filed Oct. 17, 1934 2 Sheets-Sheet 2 INVENTOR DANIEL MA PES BY J A ORNEY Patented Feb. 2, 1937 UNITED STATES HOLDER FOR PRESSURE MEDIUMCONTAIN- ERS B CARTRIDGES Daniel Manes, Montclair, N. 1., 'assignor to Walter Kldde a Company. Inc., Bloomfield, N. J., a corporation of New York Application October 11, 1934, Serial No. 148,608

' 2 Claims. (Cl. 169-31) The present invention relates to fire extinguishing apparatus of the type employing a fire extinguishing liquid propelled by a medium stored under pressure in a cartridge or other container 5 and embodies specifically means for holding or suspending the cartridge in the fire extinguishing apparatus.

More specifically, the present invention relates to a fire extinguisher comprising a container for a fire extinguishing liquid, a cartridge containing gas under pressure, and a holder for the cartridge,

the holder supporting the catridge within the container of fire extinguishing liquid in such a manher that the medium in the cartridge may be easily released.

It is the usual practice to charge the cartridge with a medium under pressure, such as carbon dioxide, the pressure medium being seal'edin the container by means which must be punctured in order to release the gas under pressure.

A cartridge, sealing means and seal puncturing device, or preferred embodiments thereof, such as are shown and described in my United States Let ters Patent No. 1,919,149, granted July 18, 1933,

may be employed.

The diificulty has heretofore been encountered that means for holding the cartridge have been complex and difllcult to employ. The present invention therefore broadly contemplates the provision of means for placing a cartridge in the container to form a compact unit that may be easily inserted or removed from the fire extinguishing liquid container.

More specifically the invention contemplates a holder which is supported on the neck of the container of fire extinguishing liquid and within said container.

A desirable advantage of the'present invention is that no tools are necessary in order to either 40 insert the cartridge in orremove it from the holder.

An additional advantage of the present invention is that the cartridge can not be removed frombe sold as a unit for recharging purposes, which is easily replaced and which is in general fool-proof,

it is necessary that a holder which will receive a cartridge easily and yet hold it securely, be provided. with the holder of the present inven- 5 tion, other types of extinguishers such as soda andacid fireextinguishers, may easily be converted into stored pressure medium propelled liquid extinguishers. I a

The invention will now be described in detail 10 with reference to the accompanying drawings, wherein:

Figure 1 is a central longitudinal view of an extinguisher embodying the invention.

water, calcium chloride solution, or other suitable fire extinguishing medium, which is filled into the container up to the level of the filling indicator 2. The shell is provided with a handle 25 3 for carrying the extinguisher in an erect position, another handle 4 for carrying the extinguisher in an inverted position, a strainer 5, an ouiet elbow i, and a standard hose 1 coupled to the outlet elbow and having a discharge nozzle 8. A holder or 80 cage comprising an upper flange 9, a base plate Ill and suspension "rods II and I2 is supported upon a shoulder It in the neck of the shell and in turn supports a cartridge ll containing a medium under pressure, such as liquid carbon dioxide, for propelling the liquid fire extinguishing medium from the shell. The cartridge 14 is provided with a coupling I5 containing means for effecting release of the pressure medium from the cartridge, for example, such as is more fully described in my United-States Letters Patent No. 1,919,149, said releasing means becoming operative upon inversion and jarring of the shell,

whereby to cause forcible engagement of the comprises three suspension rods II, which are securely fastened at one end to the upper flange tandatthe opp lteendtothebaseplate ll. 'lheserodsaresospacedthatthedistancebetween any two of them on the same edge of the baseisalwayslessthanthediameterofthecartridge it. This distance is chosen to prevent the cartridge from passing between them and to thereby retain it in the holder. A fourth suspension rod I I is provided, which slides in a hole 20 in the flange I. The rod i! has an enlarged head II at the end situated above the flange l,-

the head being of a greater diameter than'the hole it of the flange s, so that the head cannot pass through the hole in the flange. The opposite end of the rod is provided with a shank 22 of a smaller diameter than the rod. the shank being of such a size that it will readily slide into a hole 23 in the base II and permit the shoulder ll to rest on the base it. Of course, in practice. the rod I! might be somade that it will rest on the head 2|, or on the shoulder it and the head I! at the same time. when the cage is being assembled, the shank II is flrst pushed through the hole It in the upper flange I. A means of .nreventing the rod it from slipping out of the flange I after assembly, such as a cotter pin fl, is also provided. The rods II and II- are so proportioned that when a cartridge has been inserted in the holder and is resting on the base II, as shown in Figure l, the projection II is spaced a desired distance from the releasing means in the coupling II.

It will be readily apparent that when it is desired to either insert or remove a cartridge, it is only necessary to raise the rod l2 and place the cartridge on the base It, as illustrated in Figure 2. The rod II is then dropped in position through the hole I! in the base II and the cartridge is then prevented from falling out of the holder by the suspension rods.

When the cage and cartridge have been placed in the extinguisher and the cap I! has been securely tightened to the shell I, the rod I! cannot fall out upon inversion of the extinguisher. since the clearance space between the flange I and the cap I1 is not so great as to permit the shank I! of the pin II to come out of the hole 23 in the base II.

In Figure 3 is shown a view of the top flange I, wherein is illustrated flnger holes 2', which facilitate the removal of the cage from the liquid container.

The projection it, which is securely fastened to the flange I, serves the purpose of releasing the pressure medium from the cartridge when the extinguisher. normally in an erect position as shown in Figure 1, is inverted, causing the cartridge to fall. The cartridge and pin are so spaced that the projection It enters into the coupling ii and operates the releasing means, which permits the escape of the stored pressure medium.

In view of the present invention the act of recharging an extinguisher is exceedingly simple, comprising removing the cap I! from the shell I. removing the holder and cartridge i4, substituting a new cartridge in the holder, fllling the shell with liquid flre extinguishing medium up to the level of the fllling indicator 2, and replacing the cap I].

Fromthe foregoing description it will be seen that I have made new and useful improvements in cages for holding or suspending stored presinsaidflange,apluralityofrodsrisidlytastmed at oneendtosaidilangaabaserigidlyfastened at the opposite end of said associated with both said flange. and said base. said movable rod having a on said flange to hold the own weight when the hold is sition, a stop on said movable rod to withdrawal of the rod from the flange. laid stop being sopositioned thattherorirnaybe topermit thecartridgetobeinsertedinandm a filling opening at one end thereof, a removable cap for said opening, a cartridge containing a pressure medium for expelling "the flre extinguishing medium irom said a holder said cartridge upon movement at the cartridge by the force of gravity when the holder is inverted,

whereby to eifect release cf'the pressure mecflum from the cartridge into the outer container. the arrangement being such that said cap serves both to retain the holder within the outer container and to prevent removal of the earti'ldse fm the holderbyengagingtbeheadonsaidmovable rod.

DANIEL slam.

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