US474042A - Portable fire-extinguisher - Google Patents

Portable fire-extinguisher Download PDF

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US474042A
US474042A US474042DA US474042A US 474042 A US474042 A US 474042A US 474042D A US474042D A US 474042DA US 474042 A US474042 A US 474042A
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Prior art keywords
valve
pump
extinguisher
portable fire
gage
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B9/00—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour
    • B05B9/03—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material
    • B05B9/04—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump
    • B05B9/08—Apparatus to be carried on or by a person, e.g. of knapsack type
    • B05B9/0805—Apparatus to be carried on or by a person, e.g. of knapsack type comprising a pressurised or compressible container for liquid or other fluent material
    • B05B9/0811—Apparatus to be carried on or by a person, e.g. of knapsack type comprising a pressurised or compressible container for liquid or other fluent material comprising air supplying means actuated by the operator to pressurise or compress the container
    • B05B9/0816—Apparatus to be carried on or by a person, e.g. of knapsack type comprising a pressurised or compressible container for liquid or other fluent material comprising air supplying means actuated by the operator to pressurise or compress the container the air supplying means being a manually actuated air pump
    • B05B9/0822—Apparatus to be carried on or by a person, e.g. of knapsack type comprising a pressurised or compressible container for liquid or other fluent material comprising air supplying means actuated by the operator to pressurise or compress the container the air supplying means being a manually actuated air pump a discharge device being fixed to the container
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/7722—Line condition change responsive valves
    • Y10T137/7837—Direct response valves [i.e., check valve type]
    • Y10T137/7838—Plural

Definitions

  • My invention relates to fire-extinguishers, and more especially to that class of extinguishers in which the fluid is contained within a suitable reservoir and is expelled therefrom when needed by compressed air confined within the reservoir.
  • the object of my invention is to provide a portable apparatus of the kind above referred to that shall be simple in construction and operation, inexpensive in its manufacture, and very neat and compact.
  • A is the reservoir for containing the fluid under pressure, and which is preferably cylindrical in shape, my preferred method of manufacture being to form the cylinder from seamless drawn copper tubing.
  • cl is the discharge-nozzle, secured to the cylinder near its lower end by means of the nut d.
  • a valve-seat e is formed in the piece f, and this piece is also provided with the internal screw-threads f for the external screwthreads on the valve-rod g.
  • This rod is bored centrally for nearly its entire length, the passage being closed at its inner end by the valve 71.. Small holes or openings g form a communication between the chamber in the piece f and the passage through the valve-rod and permit the fluid when the valve is open to pass from the reservoir through the valve-rod and from the nozzle.
  • valve-rod 2' is the ordinary confining-nut.
  • the outer end of the valve-rod is screw-threaded, as shown, to permit of the attachment of the handle j, and also of a test-gage, as at 70, and of the pump Z for admitting compressed air.
  • m is the pump-rod, which is formed hollow, as is also the handle m, and through which the air to be compressed is admitted.
  • a socket in which is temporarily secured the test-gage.
  • On the lower end of the pump-rod is a casing to, which is formed of the section 0, having the cap 0 thereon.
  • this cap is a series of openings 0 through which the air is adapted to pass when the valve 19 is lowered.
  • This valve is provided with the vents p and p to give passage to the air.
  • a second valve g which is constructed similar to the valve 10 and which moves in the casing r and its cap 1".
  • an eye 3 Near the top of the cylinder is suitably secured an eye 3, and in line therewith, but near the base of the cylinder is also suitably secured an L-shaped support 25, which is provided with the screw-threaded tip 25', which is adapted to enter the threaded socket r in the lower portion of the casing a".
  • This eye .9 and support t serve as a temporary holder for the air-pump and permit the use of the air-pump as a handle for manipulating the apparatus.
  • the fluid is first admitted through the openingin the bottom of the reservoir and the opening then closed by means of the cap, as already stated.
  • the pump is nowapplied to the discharge-nozzleby means of the socket 1, which is screwed onto the screw-threaded tip of the nozzle.
  • the valve of the nozzle is then opened and the pump is operated until the approximate requisite press- I ure is attained.
  • the valve is closed, the pump is disconnected, and the pressure-gage applied, which is done in a manner similar to that employed in attaching the pump.
  • the valve is now opened, which permits the pressure of the contents to be indicated on the gage.
  • a portable fire-extinguisher the combination, with a reservoir having a fluid-inlet, of a discharge-nozzle having a valve and the screw-threaded tip for the purposes set forth, an air pump, a gage temporarily secured thereto, and supports on the side of the cylinder for temporarily securing the pump and gaze thereto, as described.

Description

(No Model.) 2 Sheets-Sheet 1.
H. D. GREENE. PORTABLE FIRE EXTINGUISHER.
No. 474,042. Patented MayB, 1892.
Witnesses:
(No Model.) 2 Sheets- Sheet 2.
' H. D. GREENE.
PORTABLE FIRE EXTINGUISHER.
No. 474,042. Patented May 3, 18-92.
UNITED STATES PATENT OFFICE.
HENRY D. GREENE, OF PHILADELPHIA, PENNSYLVANIA.
PORTABLE FIRE-EXTINGUISHER.
SPECIFICATION forming part of Letters Patent No. 474,042, dated May 3, 1892. Application filed December 30, 1890. Renewed March 9. 1892. Serial No. 424,838. (No model.)
To all whom it may concern:
Be it known that I, HENRY D. GREENE, a citizen of the United States, residing atPhiladelphia, in the county of Philadelphia and State of Pennsylvania, have invented certain new and useful Improvements in Portable Fire-Extinguishers; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.
My invention relates to fire-extinguishers, and more especially to that class of extinguishers in which the fluid is contained within a suitable reservoir and is expelled therefrom when needed by compressed air confined within the reservoir.
The object of my invention is to provide a portable apparatus of the kind above referred to that shall be simple in construction and operation, inexpensive in its manufacture, and very neat and compact.
To these ends my invention consists in a new and novel combination and arrangement of the several parts constituting my improved apparatus, all of which will fully and clearly appear from the following description and claim, taken in connection with the accompanying drawings, in which Figure 1 illustrates in side elevation my improved fire-extinguisher; Fig. 2, avertical central section of the same; Fig. 3, a section, enlarged, of the pump for introducing compressed air; Fig. 4, a section of the dischargenozzle, and Fig. 5 a view of the gage detached.
A is the reservoir for containing the fluid under pressure, and which is preferably cylindrical in shape, my preferred method of manufacture being to form the cylinder from seamless drawn copper tubing.
1) is a cap secured in any suitable manner to the upper end of the cylinder and forming the top or head thereof. In the bottom 0 is an opening 0', through which the fluid is admitted to the reservoir. A screw cap or plug 0 normally closes the same.
cl is the discharge-nozzle, secured to the cylinder near its lower end by means of the nut d. A valve-seat e is formed in the piece f, and this piece is also provided with the internal screw-threads f for the external screwthreads on the valve-rod g. This rod is bored centrally for nearly its entire length, the passage being closed at its inner end by the valve 71.. Small holes or openings g form a communication between the chamber in the piece f and the passage through the valve-rod and permit the fluid when the valve is open to pass from the reservoir through the valve-rod and from the nozzle.
2' is the ordinary confining-nut. The outer end of the valve-rod is screw-threaded, as shown, to permit of the attachment of the handle j, and also of a test-gage, as at 70, and of the pump Z for admitting compressed air.
The construction and operation of this pump I will now describe.
m is the pump-rod, which is formed hollow, as is also the handle m, and through which the air to be compressed is admitted. Above the handle is a socket, in which is temporarily secured the test-gage. On the lower end of the pump-rod is a casing to, which is formed of the section 0, having the cap 0 thereon. In this cap is a series of openings 0 through which the air is adapted to pass when the valve 19 is lowered. This valve is provided with the vents p and p to give passage to the air. Immediately below this Valve is a second valve g, which is constructed similar to the valve 10 and which moves in the casing r and its cap 1". Near the top of the cylinder is suitably secured an eye 3, and in line therewith, but near the base of the cylinder is also suitably secured an L-shaped support 25, which is provided with the screw-threaded tip 25', which is adapted to enter the threaded socket r in the lower portion of the casing a". This eye .9 and support t serve as a temporary holder for the air-pump and permit the use of the air-pump as a handle for manipulating the apparatus.
In practicing my invention the fluid is first admitted through the openingin the bottom of the reservoir and the opening then closed by means of the cap, as already stated. The pump is nowapplied to the discharge-nozzleby means of the socket 1, which is screwed onto the screw-threaded tip of the nozzle. The valve of the nozzle is then opened and the pump is operated until the approximate requisite press- I ure is attained. Then the valve is closed, the pump is disconnected, and the pressure-gage applied, which is done in a manner similar to that employed in attaching the pump. The valve is now opened, which permits the pressure of the contents to be indicated on the gage. The valve is then closed and the gage removed and screwedto the upper portion of the pump, which is placed in its supports on the side of the cylinder, as already described. The apparatus is now in condition for use. Thus it Will be seen that by my invention I am enabled to manufacture at small expense a neat, simple, but effective lire-extinguisher and one that Will be easily handled and operated. By my invention I am also enabled to employ the discharge-nozzle not only as an outlet for the fluid, but also as a means of connection for the pump and gage.
I claim In a portable fire-extinguisher, the combination, with a reservoir having a fluid-inlet, of a discharge-nozzle having a valve and the screw-threaded tip for the purposes set forth, an air pump, a gage temporarily secured thereto, and supports on the side of the cylinder for temporarily securing the pump and gaze thereto, as described.
In testimony whereof I affix my signature ill presence of two Witnesses.
HENRY D. GREENE. lVitnesses:
WILL T. NORTON, ARTHUR BRENNING.
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