US1158580A - Fire-extinguisher. - Google Patents

Description

W. P. STEWART. FIRE EXTINGUISHER. APPLICATION F ILED APR.20. 1914.

Patented Nov. 2, 1915.

ATTORNEY.

WALTER l5. STEWART, 0F WARWOOD, WEST VIRGINIA.,

FIRE-EXTINGUISHER.

Specification of Letters Iatent.

Patented Nov. 2, 1915,

Application filed April 20, 1914. Serial No. 833,048.

To all whom it may concern:

Be it known that I, WALTER P. STEWART, a citizen of the United States of America,

and resident of Warwood, county of- Ohio,-

and State of West Virginia, have invented certain new and useful Improvements in Fire-Extinguishers, of which the following is a specification.

This invention relates to fire-extinguishers, and it has for its primary object to provide a simple, inexpensive and ,efiicient handoperated extinguisher of the bottle .type which shall be capable of directing a steady stream of fluid to a greater distance than those at present in common use.

With this and other objects in view, the invention resides in the features of construction, arrangement of parts and combinations of elements which will hereinafter be fully described, reference being had to the accompanying drawing, forming a part of this specification, in which the figure is a central vertical'section of the invention.

In said drawing,,1 indicates a metallic bottle the upper end of-which is internally threaded and has removably fittedv therein the lower exteriorly threaded end of a plug or head 2. Removably fitted within the lower endof said head 2 at a central point is the upper open end of a casing or holder 3 adapted for holding in an upright seated position a gas capsule 4, as the ordinary carbonic gas capsule of commerce. Said casing 3 is preferably threaded into a socket 5 in said head 2 against a washer 6 between which and a second washer 7 is provided a suitable compressible packing material 8 whereby leakage of fluid from the interior of said casing to a valvechamber 9 in said head is prevented, said washer 7 being seated against anannular shoulder 10 provided at the lower end of said valve chamber.

A passage 11 is provided in said head 2 at a suitable point, communicating at one end with said valve chamber and at its opposite end with the interior of the bottle. A tube 12 which depends vertically within the bottle to a point near the bottom thereof has its upper end detachably seated within the lower end of said passage 11 as shown.

Extending centrally through said head 2 is a vertically adjustable stem 13 which carries thereon at a point intermediate its ends a valve 14% which, in the normal position of said stem, rests upon a seat 15 provided at.

the upper end of said valve chamber 9, closing communication between the latter and a passage .16 leading to a suitable dis charge nozzle 17 provided in the side of said head, said passage 16 being located at a point out of alinement with the passage 11,

or above the valve seat 15. The portion of the stem 13 below the valve 14 lies centrally within bores provided therefor in the washers 6 and 7, and the extreme end of said stem is tapered to a point, as shown at 18, which is adapted, in the lowermost position of said stem, to puncture the upper end of the gas capsule 4 carried by the casing 3.

The adjustment of the stem 13 to capsulepuncturlng po'sltion efiects the removal of the valve 14 from its seat, as indicated in dotted lines in the drawing. 1 Thus, as is obvlous, the gas released by the puncturing of the capsule, discharges into the bottle, escaplng from the casing or holder 3 through suitable apertures, as 19, and forcing the fluid contents upward and outward through the depending tube 12, passage 11, valve chamber 9, passage 16 and effecting its forcible discharge through the nozzle 17.

.Fromthe foregoing it willbe seen that I provide an extremely simple apparatus none of the parts of which require breakage to render it operative; and, further, an apparatus which may readily be recharged and made ready for instant use by refilling the bottle and inserting an ordinary carbonic gas capsule.

What is claimed is p A. fire extinguisher comprising a fluid cont'ainer, a head detachably mounted in one end of said container, a metal gas capsule, an apertured casing having one end m ounted in the under side of said head, said casing being adapted for receiving and holding said capsule in an upright seated position, a series of connected passageways leading through said head and including a valve chamber, those passages communicating with said chamber being outof alinement, a tube seated in the innermost of said passageways and depending within said container, a vertically disposed stem mounted in said head and operating through the valve chamber to and from puncturing relation to said capsule, the lower end of said stem being pointed to adapt it for puncturing the upper end of said capsule, a valve seat located in said valve chamber intermediate the passages 1m which communicate with said chamber, a In testimony whereof, I afiix my signature Valve, carried by said stem and normally in presence of two subscribing Witnesses. resting on said seat for preventing commu- WALTER P STEWART nication between the passageways at oppo- 5 site sides of said chamber and adapted to Witnesses:

be unseated when said stem is moved to H. E. DUNLAP, capsule-puncturing position. LEW K. MILLs.

Images