US1027344A - Valve for fire-extinguishers. - Google Patents

Description

J.T.LALLY. VALVE FOR FIRE EXTINGUISHERS.

APPLICATION FILED DBO. 27, 1910.

Patented May 21, 1912.

2 SHBETSSHBET 1.

M iii"? -J. T. LALLY.

- VALVE FOR FIRE BXTINGUISHERS.

I APPLICATION FILED DEC. 27, 1910. 1,027,344.

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UNITED STATES PATENT onmon,

JOHN T."LALLY, or wrtirmeron, DELAWARE, Ass'renon TO U. s. FIRE APPARATUS common, or wrnumeron, DELAWARE, A CORPORATION 01 DELAWARE.

VALVE FOR FIRE-EXTINGUISHEBS.

Specification of Letters Patent.

Patented Ma 21, 1912.

Application filed December 27, 1910. Serial No. 599 .400.

valves for directing the fluid from one 'or both tanks to the line of hose, or direct from the fireplug to the hose, or from the plug or water supply to the tanks. By my 111-" vention I provide a single valve for the above mentioned purpose, considerablyles selling the number of parts and thus insur-j ing the proper operation of the fireyextinguisher.

In the accompanying drawings, Figure 1, "is a perspective view of myv improved.

valve; Fig. 2, is a face view with the valve stem in section on .the line 2 2, Fig, 3}

Fig. 3, is a sectional plan" view onlthe line 33,Fig.2; Fig. 4, is a sectional elevation tached perspective View of the valveg-Fig... 6, is a diagrammatic plan view, showing the valve attached to two tanks, and Figs. 7, 8, 9 and 10- are diagram views, showing the difierent positions of the valve in the casing.

A is. the casing of the valve.

B is theinlet port WhlCh enters the back of the valve, as indicated in Figs. 3 and 4, and, for convenience, the inlet passage is carried to the bottom of the valve casing where it is connected to theplpe leading to,

a plug or other source of water supply.

Q is a screw threaded socket having a port 0 extending through the body of the casing A and-coupled to this socket is the hose, or other pipe, -leading.to' a nozzle.

E and D are the threaded extensions on the casing A having ports 6 and d' respectively, which communicate with the interior of the casing A. In the presentinstance, the projection E is coupled tothe front tank E and the projection D to the rear tankDf, Fig. 6;

The water supply pipe Bf, which mm municates with the inletpassage B, is pref erably providedwit-h a stop cock 6', so that the water supply can be cut ofi without operating the main valve, if necessary.

I is the valve, slightly tapered,- as indicated 111 Fig. 3, and adapted to a ground seat in the casing A. This valve has astemf Ito which is attached 'thehandle P. The stem extends through a stufiing box a in the cap 'A', which has a threaded periphery adapted to the threaded-opening in the easing. A spring f is mounted between thecap of the casing and the valve and this spring tends to keep the valve to its seat, yet allowing it to movefreely when turned. In the shell of the valve I are portsagi', i forming a communication with the center of the valve and the several-portsc, e, d, when the valve is turnedto certain positions, and in the 'wall of the valve I is a channel-i which is of such length that it 'formsa communiports 0 and d.

.cation either between the ports a and e or order .to balance the valve, T provide perf0rations k in thegbody oi the valve, as illustrated, so as to. allow the -fluid to gain access to the space between the valve and the jic'ap', as well as the interior-of the valve. .[lhe spring, however, keeps the valve norany wa seat.

Srecur djtoij the; valve casing is a ring H av'lngfa seriesv of notches .-h ;and indicating para a", as clearly. illustr t in Carried by thefhandlefl is a pointer n,

:wliich can be brought in line with any of the-indicating plates and, in order to lock the handle in a given position, a spring bolt n isprovided, which is shaped to enter any of the notches h in the ring When-the valve I is in the position illustrated in Fig. 4, the ports are closed or cut off from the nozzle and the valve 6' is closed; the pointer being opposite the plate marked Closed? If it is necessary to supply the tanks E' and D with water, thev valve 1), which is in the supply pipe B, may be opened. When it is desired to form a communication between the tank E and the port 0 leading to the nozzle, the valve is turned so that the channel i isin line with the ports 6 and c, Fig. 7; the other .ports being closed andthe pointer will be in position to line with the plate marked Front tank. :When the valve is moved so as to form communication'between the rear tank D and the port oleading to the nozzle,

then the valve is moved so that the channel i communicates with the ports 0' and d, Fig. 8, and the pointer isin line with the plate marked Back tank. When the valve is moved to the-positionillustrated in Fig.

10, the pointer will be in linezw'ith the plate marked Both tanks, and both ports e and d will communicate with the ports .0 lead-- 'ing to the nozzle. If it is desired to cut out both tanks and yet allow water to flow through the valve from the inlet B through the 'port '0, then the valve is moved to .the

posit-ion illustrated in Fig. 9;-.-the pointer being in line with the plate marked"? Water line. 'Thus, by the above construction 7 I am enabled to provide a single valve which will control thezflo'w of fluid to and from the tanks. v

In order to lubricate the-valve, I provide a grease cup S, which communicateswitha passage 8' in the valve casing and the wall of the casing is flared on each side of this passage, as shown by dotted lines in Fig. 3, so that when the grease is forced in the passage and the valve is turned the grease will lubricate the greater portion of the surface of the valve.

I claim: v

1. The-combination in a valve for fire extinguishers, of a casing having a central inlet port for. water, a port on each side adapted to be connected to respective pressure" tanks, and a portlocated between the two last mentioned ports and arranged to be coupled to a nozzle, with a hollow valve mounted in the casing and having three ports extending through the shell thereof and a channel in its wall, said channel being of such a length that when. the valve is turned in one position, it will'form a communication between one side port and a nozzle port and when turned in the other position it will form a communication with the other side port and a'nozzle port.

2. The combination in a valve for fire extinguishers, of a casing having a central inlet port for water, a port at; each side, one

' of the side ports leadlng to one tank and the other side port leading to another tank, and a port centrally located between the two side ports and arranged to be connect- 7 ed to a hose or nozzle, with a hollow valve mounted in the: casing and havingrthree ports extending through the shell, .and an elongated channel in its wall, the ports and channels of the valve being so arranged that when the valve is in one position the side ports will be cut ofi from the intermediate port, when in another position one side port will communicate with the intermediate port and when moved in still another position the other side portwill communicate with the intermediate port and when the valve is moved to another position the three ports in the valve will form a communication with both ports leading to the tanks and the central port leading to the nozzle.

3. The combination in a valve for a fire extinguisher, of a casing having a central inlet port for water, side ports arranged to be coupled to tanks, a port intermediate of the two sideports and connected with the nozzle of exhaust, a cap secured to the easing, a hollow valve mounted in the casing,

uid to gain access to the space on both sides of the valve, with a spring mounted between the valve and the cap, the cap tending to hold the valve to its' seat, the valve having a series of three ports and a channel in its wall, said valve having a stem extending through the cap, and a handle mounted on the stem by which it is turned.

4. The combination. in a valve for fire extinguishers, of a casing having an inlet port communicating with the casing at the back, two side ports arranged to be coupled to tanks, an upper port intermediate of the two side ports and arranged to be attached to a hose or nozzle, a valve mounted in the casin and having a hollow center communicating at all times with the water inlet passage and having three ports in its shell ,and a channel in its outer surface, said valve having a stem, a handle on the stem, a latch carried by the handle, said handle having a. pointer, and a ring secured to the valve casing and having notches to receive the latch of the handle and having indicating marks with which the pointer is arranged to aline. In testimony whereof, I have signed my name to this specification, in the presence of two subscribing. witnesses. JOHN T. LALLY. Witnesses: WM. E Snore,

-- 'Wu, A, BARR.

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