US1231815A - Fire-extinguisher. - Google Patents

Description

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F I RE EXTINGUISHER. I APPLICATION FILED OCT-31' I916- Patented July 3-, 1917.

ROCCO VERDONE, OF NEW YORK, N.

FIBE-EXTINGUISHER Application and October 31,

I 7 all whom it may concern:

. I Be it known that I, Rocco VEnDoNE, a.

- subject of the King of Italy, and resident of New York city, borough of Manhattan, in the county of New York and State of New York, have invented certain new and useful Improvements in Fire-Extinguishers, of which the following is a specification;

My invention relates to improvements in fire extinguishers of the piston or plunger type, wherein the extinguishing material or liquid, such as a suitable chemical solution, is forced from the extinguisher by reason of the .reciprocations of the. piston or plunger. In such extinguishers, as known to me, the operating mechanism is usually made substantially the length of the inclosing casing that contains the extinguishing liquid, and where such extinguishers are made of saflicient length to contain a. relatively large volume of such liquid, the piston tube' or rod has been made correspondingly long,

thereby entailing upon the operator. the work of reciprocating the piston back and forth for a considerable distance, requiring longer movement of his arm than is con vement, so that it has been customary,- as known to me, to make such extinguishers of relatively short length, to enable the opefrator to more readily operate the piston. i

The object of my invention is to provide an extinguisher of the class referred to wherein the casing may be made relatively long to contain a relatively large amount of extinguishing material or liquid, and to provide thereinan operating mechanism of a relatively short length, whereby the opera tor need reciprocate the piston fora relatively short or convenientlength of stroke, and whereby substantially all of the contents of such relatively long casing may be discharged by the operation of the piston.

My invention comprises novel details of improvement and combinations of parts that will be more fully hereinafter set forth and then pointed out in the claim.

Reference is to be had to the accompanying drawings forming part hereof, wherein,

Figure 1 is a longitudinal sectional view' of a fire extinguisher embodying my invent'on' l 2 is a cross section on the line 2, 2, in Fig. 1; Fig. 3 is a sectional detail of part of Fig.

showing .the handle partly drawn out of p the casing, and

' Specification of Letters I'atent.

I tinguisher.

Patented July 3, 191 '7- 1916. sewn No. 128,657.

Fig. 4 is a side elevation of part of the ek- In the accompanying drawings the numeral 1 indicates a suitable casing adapted to contain a chemical liquid or solution, or analogous fire extinguishing material, to be forced from the casing 'for use. Within the casing is a cylinder 2, shown having heads" 3, 4:, at opposite ends. shown supported at its inner end upon a discharge tube 5 extending within the cas-j.

Said cylinder is .ing and secured to the casing at its outer end, indicated at 6, as by solder, in any suit able manner. Within cylinder 2 and surrounding tube 6 is a tubular piston rod *2,

shown having a cap 8 secured thereto at one end, the cap being provided with an aperture slidable upon tube 5. A handle is indi-- cated at 9 secured to the outer end of piston tube 7, as by screw threads. Packing is indicated at 10 at the end of the casing around 1 tube 7, and packing is shown at 11 within I the handle 9 forming a tight joint around said tube. A piston is indicated at 12, slidably mounted upon tube 7 and adapted to have limited movement-upon said tube between the head 8 and a stop 13 on said tube.

Spaced apertures at 14c, 15 in tube 7 admit liquid from the casing to said tube accord ing to the position of piston 12. The spaced apertures 1 15 are provided since'the extinguisher illi'istrated is of the double-acting type. When handle 9 and tube 7 are pushed inwardly the piston will bear against stop 13 closing apertures 15 and opening apertures 14, and liquid will flow into tube 7 through aperturesl l, and thence will flow through tube 5 and be discharged through orifice 5*; when said handle andtube 7 'are pulled outwardly, against head 8, closing apertures lland'uncovering apertures 15, whereupon liquid' will flow into who 7. through apertures 15 and will be forced from tube 7 through its orifice 5; A valve indicated at 16 Within the handle and pressed by a spring 17 closes the adjacent end of tube 5 when the handle.

is pushed to its normal position. A passage 17 communicateswith a port 18 leading to cylinder 2 near one end thereof, anda passage'19 communicates with a port 20 leading to said cylinder near the opposite end thereof. Valves 21 and 22 respectively conno trol the back flow through passages 17 and 19. Valves 23 and 24 are shown connected by a rod 25 that is movable in a passage 25,

piston 12 will bear which valves are adapted respectively to coact with seats 26, 27 in a well known manner. It will be noted that casing 1 is considerably longer than cylinder 2, and that tube 5 extends within and through the casing beyond the inner end of cylinder 2, and discharges through the end'of the casing opposite the handle. A tube 28 is shown s cured in the tubular end of cap 4, and pack, 1g 29 is located at the end of tube 28 to make a tight joint between the cap and tube 5 A cap 30 is secured at the outer end of tube 28 and is provided with an opening freely receiving tube a, and the packing indicated at- 31 affords a tight fit between said cap and tube. By means of the packing 10, 29 and 81 the cylinder 2, tube 25, and parts connected therewith, may rotate upon tube 5, so

that the valve devices may hang by gravity in difi'erent positions of the casing.

At 32 is a conduit or tube connected with cylinder 2 and communicating at its inner end with passages 17 and 25, the outer end of conduit 32 being shown located near the outer end of easing 1, the liquid'receiving end 32 of conduit or tube 32 being shown. extended outwardly adjacent to the inner wall of easing 1. At 33 is a valve within conl lnit or tube 32, shown adjacent to its outei' end, adapted to fit against a suitable seat 3.4 to retain the contents in said conduit olptube when the extinguisher is inclined downwardly, and to perm-it the flow into said conduit or tube. of liquid or solution from casing 1. A stop at 33 limits the inward suction of valve 33 in conduit 32. A brace or arm 35 is shown connecting conduit or tube 32 with tube 28, whereby the outer-end of the conduit or tube 32 is supported and said conduit or tube will hang by gravity from cylinder 2 and tube 28 in different positions of easing 1. g

The casing may be charged through an opening provided witha closure at 36. The handle 9 may be keptclosedaipon the casing suitable means, suchas the bayonet joint indicated at 37, 38, in a well known manner, whereby when the extinguisher is. tobe operated, the handle may be turned in 'one direction, as to the left, to release it from the'hasing, and when the handle is to be' lo'qkbdin place it maybe turned to the right,

i "in a well known manner.

' able tube 7 and the cylinder 2, may be made jay of October,

By'the means described, the operatin parts of the extinguisher, such as the sli relatively short, so that by means of relatively short strokes of the handle and iston.

the o rator may cause the disc ar e, throng tube 5 and from orifice 5', of t e contents of the casing, and yet the casing may be made considerably longer than the operating parts, so as to contain a relatively large volume of extinguishing material or liquid. The extension of conduit or tube 32 from cylinder 2 to a point within the casing adjacent to the outer end of the latter, enables the liquid or extinguishing material to be drawn into cylinder 2 from the outer end of the casing when the extinguisher is inclined downwardly from the handle to discharge substantially all of the contents of the extinguisher. It will be understood, of course, that when the extinguisher is inclined downwardly the liquid will be directed through conduit or tube 32 both to the'valve 21 and to valve 22 to cylinder 2, and that if the ex tinguisher be inclined upwardly the contents will be directed through valve 22 and also through valve 21, to the cylinder 2, and thence through tube 7 to tube 5 and from its orifice 5.

Having now described my inventitm what I claim is a A fire extinguisher comprising a casing, a discharge tube extending longitudinally within the casing and having a delivery orifice at one end of the casing, pumping mechanism within. the casing comprising a cylinder rotatively mounted upon the discharge tube and having valved inlet passages adjacent the opposite ends communicating with the casing, a piston within said cylinder, and means to operate the piston, said casing be ing longer than saidcylinder, the latter being located within the casing at the end thereof opposite the discharge orifice, a corn duit within the casing communicating atone end with the aforesaid passages and extend ing within the casing beyond the cylinder to a point adjacent to the outer end of the easing, a tube connected with said cylinder between the latter and the outer end of the tasing and rotatively mounted upon the dis-- charge tube to rotate with the cylinder, and a brace connecting said rotative tube with said conduit whereby the cylinder, conduit and last named tube are rotative' together 'rcliitively to theorising to permit the conduit tor'eceive fluid from the end of the. casing distant from said cylinder when the-casing is tilted downwardly toward the discharge orifice.

Signed at New York city, in the county of New York, and statgbof New York, this 25th 1916.

Rocco VERDONE.-

Witness I l MARIE F.- WAINWRIGHT.

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