US1750927A - Fire-hose connecter head - Google Patents

Description

March 18, 1930. c. J. DIEZ FIRE HOSE CONNECTER HEAD Filed Feb. 16, 1928 IVE NTOR floaraw? Jfliez.

Y I v V. ATTORNEY Patented Mar. 18, 1930 UNITED STATES 1' owner.

CONRAD J. DIEZ, OF BALTIMORE, MARYLAND, ASSIGNOR TO AMERICAN BRASS & FIRE EQUIPMENT CORPORATION, OF BALTIMORE, MARYLAND, A CORPORATION OF MARY- LAND FIRE-HOSE GONNECTER HEAD Application filed February 16, 1928.

The invention has for its object to provide a simple and compact connecter head which may be carried by the pumping apparatus and have connected thereto a nozzle equipped discharge hose line, and suction and pressure supply lines for connection with the pumping apparatus, suitable manually and automatically actuable valves being provided in said head and all being arranged whereby the head may be connected to a lire plug and a stream at service pressure played on the fire before and while the pumping apparatus connections are made, to be supplanted by a pres sure stream through the same line after the pumper connections have been made without the necessity of cutting of the stream flow at any time during the making of the said connections.

In its more detailed nature the invention seeks to provide a connecter head embodying certain new and useful improvements over 1 the connecter head disclosed in Patent Number 1,351,781 issued September 7, 1920, whereby a more simple and compact structure is provided including simplified valve structures, one adapted to be hand manipulated and one automatically actuated to control the lower pressure stream distribution and the change to pressure stream distribution without break of flow or loss of pressure below service pressure at any time. L Other objects will in part be obvious and in part be pointed out hereinafter.

To the attainment of the aforesaid objects 5 and ends, my invention consists in the novel details of construction, combination and arrangement of parts, all of which will be first fully described in the following detailed description, then be particularly pointed out in the appended claim, reference being had to the accompanying drawings, in which Figure l is a plan view illustrating the invention in use for supplying water to the hose nozzle at hydrant or ordinary service pressure.

Figure 2 is a diagrammatic plan View illustrating the invention in use for supplying water to the hose nozzle at pumped pressure.

Figure 3 is a horizontal section illustrat- Serial No. 254,720. 7

ing the position of the valves for effecting the use disclosed in Figure 1.

Figure 4 is a horizontal section illustrating the position of the valves for efiecting the use disclosed in Figure 2.

Figure 5 is a plan view of the invention per se.

* Figure 6 is a vertical cross section taken on the line 6-6 on Figure 5.

In the drawing I have diagrammatically illustrated a fire hydrant and the same is indicated at 1,.the large outlet thereof being indicated at 2. c

The connecter head which forms the subject matter of my present invention is preferably carried by the fire apparatus with the nozzle-equipped discharge hose line and pipe lines for connection with the suction or intake connection to the pumper and a pipe line for distributing water under pressure from the said pumper attached thereto. The nozzle-equipped discharge hose line is indicated at 3 and the same has provision at 4' for connection to the head. The suction line is indicated at 5 and has provision at 6 for connection to the head and at 8 for connection with the pumper, and the pressure distributer line is indicated at 9 and has provision at 10 for connection to the head and as at 11 for connection to the pumper. Figure 1 of the drawing I have indicated the connecter head attached to the fire hydrant and adjusted to play a stream of water on the fire at service pressure. In Figure 2 of the drawing I have diagrammatically indicated the connecter head attached to the pumper and adjusted for supplying a stream under pressure provided by the said pumper.

In the practical development of the invention I provide a connecter head casing 12 having a main valve chamber 13 which is cylindrical in shape and is accessible through a removable cap 1 1. The casing includes an inlet throat 15 having provision at 16 for connection to the outlet 2 of the fire hydrant.

A sector plate valve 17 is operable in the chamber '13, the said valve plate being removably mortise and tenon connected at 18 to an operating cradle 19, the trunnions 20 of which have bearings in glands 21 provided in the casing cover and bottom.

One of the trunnions is projected beyond its gland bearing and isfitted with an opcrating handle 22 formed to provide a pointer 23 at one end to indicate at all timesthe V position'of the plate valve in the chamber .13.

Thechamber 13 communicates, through a passage 24, with a Y-extension 25, one branch of the said Y having provision at26 for connectionwith thehose-line 3 and the other such branch having provision at 27 for connectionwith the pressure line 9 from thepumper. g

A valve seat 28 ispr'ovided across the pas-' sage communicating with the pipe line 9 and a valve seat 29 1s provlded across the passage 24, the said seats being so arranged as to be controlled by a single flap valve 30 pivoted at 31 in the 'Y extension between the valve seats, and which said valve is adapted to alternately and automatically seat on the respective valve seats in a manner and for a purpose soon to be described.

'- The casing 1-2is also provided with an outlet32 adapted to communicate with the sucition line 5 to gthe bumper,see Figure 7 In use the connecter head with the hose lines-3, 5and 9 attachedthereto is preferably carried by the fire apparatus with the plate valved? thereof adjusted to the position I (shown in Figures 1, 3, 5 and 6. As the apparatus reaches the fire hydrant it drops the connecter head and the attached lines making the necessary run to lay the line 3. The

connecter head is then attached to the hydrant as indicated in igure .1 of the drawing audit is only necessary to open the valve of the hydrant to play a stream onto the fire through the hose line 3 at hydrant service pressure, and the said stream continues to play on the fire until it has been possible to V return the fire apparatus andmake'the necessary connectlons as mdlcated 1n F1gure2 of the drawing;

When the lines 5 and 9 ed tothe pumper in the manner illustrated in i I Figure 2 the valve 17 is shifted fromthe position illustratedin Figures 1 and 3 to the position shown in Figures 2 and 4.. When.

this shift is first occasioned'water will pass through the outlet 32 into the suction line 5 but will continue to fiow at service pressure through the passage 24 so as not to discontinue the supply of a stream to the fire through the hose line 3 at service pressure.

When the pressure in the line 9 has been built up by the pumper above the pressure of the water passing through the passageway 24 the flap valve 30 will be automatically shifted from the position illustrated in Figure 3 to the position illustrated'in Figure 4 when a stream at high pressure will supplant the service pressure stream in the hose line 3.

Fromthe foregoing description it will behave been c0nnectfor closing any one 'of'said three-ports-asdeobserved that it is possible to play a stream of water on the fire at service pressure during the interval necessary to connect and bring into function the pumper and also possible to supplant that'stream by a high pressure Y extension passages. v r

In case of emergency, such as theburstlng of the hose line 3, the valve 17 may readily be shifted to close off'theinlet throat' l5- By reference to Figures 3' and 6. of the I drawings it will be obvious'that the use. of.

the rotary valve in applicants' structure en ables him to close either of the ports 15, 32 or 24 as the case may be. Sometimes it happens that dirt will get under the flap valve 29 when in the position shown in Figure 4. W hen that occurs a back leaka'geor'circuit" 7 of water flow from '32 through 27, through 24 back to32may occur, thereby reducing,

the efficiency of the apparatus. r'Wheni the if fireman finds that con'dition eXistingallhej needs to do is to turn'fthe valvei18 to close the port 24 and that'will hold'the pressure temporarily.

From the foregoing'description, taken in connection with the accompanying drawing,

it is thought that the-novel details of construction, the manner of use and'the' advantages of my invention will be readily apparent to those skilledinthe art to'which it relates. 'j I c.

.What I claim is? I p H A connecter head of the character described comprising a hollow casing having'a cylindrical'valve chamber and having" three ports, means whereby one port may becon:

nected witha fire plug outlet,'means whereby another port may be connected with" a pumper suction line, and a Y'eXtension having a passage connected with the thirdport to communicate with said chamber, a pas sage adaptedfor connection with adistributing hose line, and a passage adapted for connection with a pressure line from" a pumper, a flap valve n-sald extensionautomatically operable by water pressure for closing the passage from the chamberinto the extension or the passage fromthe press sure line, and a rotary valve'in said chamber sired leaving the other two in' communica-- tion. CONRAD J.DI'EZ.

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