US702326A - Valve - Google Patents

Description

v Patented lune ID, |902. J. ,W. NETI-IEBY.

V A L V E. (Application med oe. 11, 1900.)

2 Sheets-Sheet I.

(No Model.)

No. 702,326. Patented lune I0, |902..V

.|. w. NTHERY. VALVE.

(Application tiled Oct. 11,71900.) (No Model.) 2 Sheets-Sheet 2;

lig-

TH: nonms' mms co. vuoYMn'no., wAswnoYo. o, c.

UNITED STATES PATENT OFFICE.

JOSEPH W. NETHERY, OF INDIANAPOLIS, INDIANA, ASSIGNOR TO THE NETH- ERY HYDRAULIC VALVE COMPANY, OF INDIANAPOLIS, INDIANA, NEW YORK, N. Y., AND JERSEY CITY, NEW JERSEY, A CORPORATION OF NEW JERSEY.

"VALVE SPECIFIGATION forming part of Letters Patent No. 702,326, dated J une 10, 1902.

Application filed October 11,1900. Serial No. 32,720. (No model.)

To @LZ whom, it may concern:

Be it known that I, JOSEPH W. NETHERY, a citizen of the United States, residing at Indianapolis, in the county of Marion'and State of Indiana, have invented certain new and useful Improvements in Valves, of which the following is a specification.

My present invention relates to a valve which upon being opened will discharge a prero determined quantity of fluid and then close. Such valves are adapted, among other things, to serve in places Where tanks have heretofore been used, as in the case of water-closets and the like, so that such tanks become unneclessary and may therefore be dispensed wit A valve and the pipes and passages "connected therewith embodying my said invention will be first fully described and the novel features thereof then pointed out in the claims.

Referring to the accompanying drawings, which are made a part hereof and on which similar reference characters indicate similar parts, Figure l is a view of a valve and fragments of the connected pipes embodying my said invention; Fig. 2, a central vertical sectional view of the same, except one pipe,which is, as before, shown` in elevation; Fig. 3,` a

view showing a portion of a plumbing system employing several of my improved valves.

The water or other iiuid reaches the valve through the main ingress or supply pipe 1 and is discharged through the branch pipe or 3 5 nozzle 2, the same being connected to or formed in piece with the main-valve casing 3. In the construction illustrated in the drawings a slitted cage leXtends up for a suitable distance above the valve-seat 5 and contains 4o the lower end of the valve proper. Said slitted cage serves not only as a guide to the valve, but also to restrict the water-passage and provide a gradually-increasing area to such passage as the valve rises and a gradually-decreasing area as it closes. The main chamber in thevalve-casing continues on above this cage and is of a larger diameter. The valve is a double valve and is composed of a body 5, having on the lower end a suit- 5o able washer or gasket 6, forming an elastic seat, and upon the upper end suitable washers or cupleathers '7, the same being secured thereto by any appropriate means, as screws and nuts, as illustrated. The lower end of i the valve upon which the washer 6 is secured 5 5 travels vertically in the cage 4, while the upper end carrying the washers or cup-leathers 7 travels in the upper main cylindrical chamber of the valve-casing. Leading from the upper end of this chamber around into or t-o 6o a point communicating with the outlet or nozzle 2 is a by-pass 8, which is closed by a valve 9, the valve-stem 10 of which extends up through the top of the valve structure and terminates in a suitable finger-knob 11, beneath which I provide a spring l2, which serves, as will be readily understood, to hold the valve 9 up to its seat except when forcibly depressed.

Within the outlet or nozzle 2 is an annular 7o flange 13, which reduces the eective discharge-orifice of said outlet and in case of excessive pressure transmits a portion of the pressure back through the by-pass Sinto the chamber above the main valve, thus aiding in pushing said main valve downwardly, and so reducingthe iiow through the slits in the cage 4, the result being to equalize the pressure at all points except within the pipe 1 and below the main valve. In thus acting 8o the back pressure in question will operate to retard the closing of the valve 9 until a suitable pressure is reached in the chamber below said valve through the inflow of water from the pipe 2O through the branch 21. 85 After 'the valve 9 hasbecome seatedor closed the back pressure in question will of course have no further effect; but by this time the main valve will have descended sufficiently to partially shut off the mai-n flow of water 9o from below, and the object will have been thus accomplished. The liange 13 also serves an additional purpose. The space immediately behind it, into which the by-pass 8 discharges, causes the water at that point to form a sort of eddy, into which `the by-pass may discharge freely, the flow of Water under full force being of course limited to the size of the opening within the iiange.

A second pipe 2O leads from the same roo original source of supply as the supply-pipe l. A branch 2l extends therefrom, and a fine perforation leads into the eXtreme upper end of the main chamber within the main-Valve easing 2:5, said perforation being smaller than ihe by-pass 8. As the upper end of the valve is larger in diameter than the lower end, the pressure ot' water in this chamber is sufficient when the valve 9 is closed to gradually force the main valve down and eventually shut it iight, thus stoppingthe iiow. The time which this operation occupies is governed by the size of the opening, and this may be made as small as desired by meansof the valve 22 in said brauch pipe 2l. The operation is (when the valve 9 is forced open by a pressure on the finger-knob ll) that the Water will iiow out of that portion of the chamber above the main valve through the by-pass 8, said by-pass being so much larger than the perforation which leads in from the pipe 2O that the pressure in said chamber is immediately reduced to a point which enables the pressure of the Water in the pipe 1 to force the main valve open, and this in rising from its closed to its open position will drive the contents of said chamber out through said by-pass. valve 9, and the fine stream coming in ihrough the orifice in the branch pipe 2l under a high pressure will, as before stated, in a certain period force down and close the main valve.

In an ordinary plumbing system, Where a number of valves are commonly connected to a single-supply pipe, as shown in Fig. 3, the second pipe 20, leading from the primary source of supply, is of great advantage in carrying out my invention, as the initial pressure will always be maintained in this pipe, whereas in an ordinary supply-pipe it varies greatly at times, as varying numbers of valves are liable to be open, so that Water is drawn from the pipe and the pressure reduced thereby unequally.

As Will be readily understood, any desired amount of Water may be drawn out in operation by simply adjusting the size of the inlet-opening leading from the pipe 2O to the chamber above the main valve. This inletopening, however, must always be smaller than the outlet-opening from said chamber formed by the by-pass 8, for reasons which have already been explained. Vhen desired, the flow may be prolonged by holding the valve 9 open by suitable pressure on its stem.

Having thus fully described my said invention, What Iclaim as new, and desire to secure by Letters Patent, is-

l. The combination, in avalve, of a casing having an inlet and outlet with a valve-seat between them, a cage With restricted openings in its sides extending up from said seat, a piston-.valve mounted to operate in the casing above said seat With the valve in said cage and adapted to seat on said valve-seat, a bypass extending from the chamber above the The spring l2 will then close the` valve around-to the outlet, an automaticallyclosing valve to said by-pass, and a separate fluid-supply pipe leading into said chamber the inlet whereof is smaller than said by-pass, substantially as set forth.

2. The combination, in a valve, of a valvecasing containinga cage havingopeningsinits sides in which the lower end of the valve travels, and a chamberlarger in diameter than said cage and located above the same, the valveseat being. located below' said cage, a pistonvalve having tWo heads the lower one of which is adapted to travel Within the cage and seat itself on the valve-seat and the upper one of which is adapted to travel Within the cylindrical chamber above the cage, and suitable means for operating said main valve, substantially as set forth.

3. The combination, in a Huid-supply system, of the valves in said system connected With a supply-pipe, each of said valves comprising a casing having a valve-seat, acharnber above said seat, a valve therein connected to a piston operating in said chamber, a discharge-opening below said piston,a by-pass leading from above said piston around 'into said discharge-opening, and a separate Iiuidsupply pipe leading from the primary source of supply connected with each of said chambers above the piston by an orifice smaller than said by-pass, substantially as set forth.

4. The combination, in a valve, of the maiuvalve casing, the main valve contained and operating therein, a chamber above said main valve larger in area than the valve-seat, a second supply-pipe leading directly from the primary source of supply communicating through a small passage with said chamber, a discharge-opening leading from said chamber, and a suitable valve to said dischargeopening, said discharge-passage leading into the main outlet to the valve, said main outlet being provided with a reducing-flange outside the point Where the said passage discharges thereinto, substantially as and for the purposes set forth.

5. The combination, in a valve, of a casing having a valve-seat, inlet and outlet openings on opposite sides thereof, a chamber above said seat, a valve adapted to open a larger area for the discharge of the fluid as it rises from said seat, a piston operating in said chamber and connected to said valve, a bypass leading around into the discharge-pipe, and a restriction formed in said dischargepipe adapted to partially close or restrict its area at a point beyond the point Where said by-pass discharges thereinto, a valve to said by-pass, and a separate fluid-supply leading directly from the primary source of supply into said chamber above said piston, substantially as set forth.

6. The combination, in a duid-supply system, of a main source of Huid-supply, a pipe leading therefrom, a valve-casing connected to said pipe having a suitable chamber therein with a valve-seat of smaller diameter than IOO IIO

the large portion of said chamber at one end from the portion of the chamber `above the thereof,` a` main-valve structure situated in piston around and communicating with `the said chamber having avalve at one end of egress-opening to the main va1ve,'and a Valve suitable form to rest upon said valve-seat and to said lay-pass.A

5 a piston-head of larger diameter Within the In Witnesswhereof Ihave hereunto set my chamber, ingress and egress openings to said hand and seal, at Indianapolis, Indiana,this valve, a separate pipe leading directly from Qthday of October, A; D. 1900.`

the source of supply to said valve and com# JOSEPH W. NETHERY. [IhV 8;] municating with the portion of the chamber Witnesses: 1o above the piston bya passage of small di- CHESTER BRADFORD,

ameter, a by-pass of larger diameter leading l JAMES A. WALSH.

Images