US340470A - Valve - Google Patents

Description

(No Model.) 2 Sheets-Shee1i 1.

P. J. WHITE.

VALVE. N0. 340,470. Patented Apr. 20, 1886 E91 0 Af tr zv l P. J. WHITE.

VALVE.

(No Model.)

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FUNIVTED STATES PATENT Fries.

PATRICK 'J. VHITE, OF ST. LOUIS, MISSOURI.

VALVE.

SPECIFICATION forming part of Letters Patent No. 340,470, dated April 20. 1836.

Application filed March 2, 1885. Serial No. 157,559. (No model.)

T0 at whom it may concern.-

Be it known that I, PATRICK J. WHITE, of the city of St. Louis, in the State of Missouri, have invented acertain new and useful Improvement in Valves, of which the following isafull, clear, and exact description, reference beinghad to the accompanying drawings, forming part of this specification.

Figure l is a horizontal section at 1 1, Fig. 2, the valve being shown open. Fig. 2 is a vertical section at 2 2, Fig. 1. Fig. 3 shows the casein vertical section at 3 3, Fig. 1, the valve-stem and valve being in side elevation and the valve closed. Fig. 4 is a transverse section at 4 4, Fig. 1. Fig. 5 is a transverse section at 5 5, Fig. 1.. i Fig. 6 is a side view of the arm to which the ball-float is connected. Fig. 7 is a view similar to Fig. 1, showing a slight modificatiou,whereby a valve of much simpler form is produced.

This invention in its most simple form may be used as an ordinary balanced valve for any purposethat is to say, it may be used for all purposes to which a ball-cock is applicable but is designed and adapted more especially for use in connection with water-closets.

Water-closets having valves which are controlled by a float are so well known that it is not necessary to show and describe one in order to understand my invention.

A is a valve-case having a water-inlet, B, in connection with the water-supply. and an outlet, 0, in communication with the chamber D of the other valve. The chamber D communicates by a valve-port, E, with another chamber, F, from which the water is discharged through an outlet, G.

Between the inlet B and outlet 0 is a chanr her or passage, B, through which the valvestem H passes transversely. The chamber B communicates through a valve-port, I, with a chamber, J, which communicates by a passage, K, with a chamber, L, of the automatic valve. The chamber L is separated from the chamber D by an inverted cup, M, of indiarubber, through whose middle passes a valvestem, N, through which is an axial water-passage, n, in communication with the chamber L at its upper end, and communicating by side orifices, n, with the chamber F.

N is a valve on stem N, closing port E.

Q is a valve on the stem H, and O is the valveseat, against which it closes to shut the port I. The valve-stem carries a-cup-leather packing, P, which works in a cylindrical bore,

Q, of case A asthe valveis opened and closed.

' It R are guide-studs which move in ways S,

wvhich are made longitudinally in the case, and thus the valve-stem is prevented from turning.

Tisa compound screw-thread of high pitch, and U is a nut turning thereon. The nut works in the cap V, having free rotary move- 1 ment in the cap, but restrained from endwise lever XV, by which the nut is turned. The lever is held on the not by a washer and screw, X X. The arm of the lever has a slot, W", which is in the arc of a circle concentric with the nut.

Y is a block having a stem of curved form fitting the slot W so that the block cannot turn in the slot, but may be adjusted endwise in the slot.

Z is a rod carrying an ordinary or any suitable float, so arranged as to close the valve by the lifting of the lever W when the water in which the float is placed attains a certain level. This device is very common, and need not be shown nor particularly described. The rod Z is fastened in the block Y in such a manner that the rod is always in line with the center of the nut, whatever the position of the block in the slot \V, the rod being transverse to the 7 slot and the slot concentric with the nut. The block is held in position in the slot by a nut, Y.

The operation of the valve is as follows: \Vhen the valve 0 is resting upon its seat 0, and the port I thereby closed, the parts of the automatic valve will occupy the positions shown in Fig. 3, and the chambers B and D, being in direct communication with the supply, filled with water under pressure of the full head; but by reason of the greater area of the under side of the elastic cup M as compared with the port E, through which the water presses upon the top of the valve N, the said valve will, of course, be held up against its seat, and the said port thereby kept closed. When the port .I is opened by moving the valve 0 from its seat, the water enters the chamber L through the passage or duct K, whereby the pressure upon the opposite sides of the cup M becomes balanced, (or nearly so;) but there being nothing to balance the downward pressure of the water on the valve N,it follows that said valve will be depressed, and the port E thereby opened; hence, while the port I is open the downward pressure on the valve-stem N will be in excess of the upward pressure in the same ratio as the sum of the areas of the upper facesof the cup M and the port E are in excess of the area of the under surface of said cup. \Vheu the valve 0 is closed, the water ceases to flow into the chamber L, and the pressure of the water beneath the rubber cup, with the elasticity of the cup M, draws up the valve N and closes the port E, the water escaping through passage n n from the chamber L. It will be seen that the water-duct K is much larger than the (loot u n, so that when the valve 0 is open more water flows into the chamber than can be discharged through the duct n n, and consequently the elastic cup M is depressed. The chamber J is closed by a screw-plug, J. By removing the plug J and stopping the vents G and K by screws or plugs G and K, respectively, as represented by dotted lines in Fig. l and full lines in Fig. 7, the ball-valve may be made to operate singly, the liquid entering through opening B, and having outlet through valve-port I and chamber or passage J. The valve in its most simple form would have a case, A, made without any automatic valve attached, and without the ducts O and K. In this condition it would form a balanced valve, as the bore Q has equal diameter with the valve-port I at the seat, so that the pressure of the water upon the valve 0 equals its pressure upon the cup-packing P.

I claimi 1. The combination, with the chambers B and D,communicating with each other through the passage 0, and having the induction and eduction ports 13 and E, respectively, of the valve'N, seated against the pressure in the chamber D and closing the eduction-port E, the valve-stem N, to which it is secured. passing through port E, the cup or disk M, secured to said stem, a chamber, L, above said cup or disk M.the duct K and port I, through which the chambers L and B communicate,

' the valve 0, for controlling said port I, and a duct of smaller area than the duct K opening from the chamber L, for the escape of the fluid therefrom, substantially as set forth.

2. In a valve, the combinatiomwith achamber having an induction-port, an eduction port, and a balancing-bore opening th'ereinto, of a valve located on the outside of the chamber, for closing said eduction-port against the pressure of fluid within the chamber, and a packing fitting in said balancing-bore, said valve and packing being connected and each having an equal area exposed'to the action of the fluid within the chamber, whereby the parts are balanced, substantially as set forth.

3. The combination of a valve having a passage,B B O, communicating with'the n1iddle chamber, D, of an automatic valve, a port and valve, I 0, between said passage and chamber J, a duct, K, leading from chamber J to the upper chamber, L, an inverted elastic cup separating chamber L from the chamber D, and a valvestem secured to the inverted cup and to a valve closing the connection between the chamber D and discharge-chamber F, and having a duct, n n, leading from the chamber L to the chamber F. v

4. In a valve, the combination, with the chamber B, having the inductionopening B, of the baiancingbore Q and the dischargeport I, of equal diameter, opening thereinto at diametrically-opposite points, the valvestem H, passing through said chamber and through the port I, the packing P, secured to the stem and working within the bore Q, and 1 the valve 0, secured to said stem outside of the chamber B, closing the port I against the pressure of the fluid within the chamber, as set forth.

5. In a valve, the combinatiomwith ascrewthreaded stem and guides for preventing its rotation, of an internallyscrew-threaded out having a lateral projection or flange, a cap having a circular groove in which said projection or flange engages, and a lever engaging with said nut, for the purpose set forth.

6. The combination, with the valve-caseA,

having the bore Q and grooves or ways S, of

the valve-stem H, having the guides R and the screw thread T, the internally screwthreaded nut U, having the cylindrical cxterior and flangeu, the shouldered cap V, andthe lever \V, engaging said nut, substantially as and for the purposes set forth.

PATRICK J. \VHITE.

lVitnesses:

SAML. KNIGHT, GEO. H. KNIGHT.

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