US529739A - Valve foe tanks - Google Patents

Description

(No Model.) 2 SheetsSheet-- 1.

E. W. LONG. REGULA'I'ING VALVE FOR TANKS.

No. 529,739. Patented Nov. 27, 1894.

Zia- (No Model.) 2 Sheets-Sheet 2.

E. W. LONG. I

REGULATING VALVE FOR TANKS. v

No. 529,739. Patented Nov. 27-, 1894.

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"UNITED STATES PATENT QFFICE.

EBEN WILMER LONG, OF OHIOAGO,ILLINOIS.

REGULATlNG-VA LVE FOR TANKS.

SPECIFICATION forming part of Iretters Patent No. 529,739, dated November 27, 1894.

' Application filed July 16,1894. Serial No. 517,672. (No model.) i

tion, reference being had to the accompany in g drawings, and to the letters and figures of reference marked thereon.

The object of my invention is to provide a valve for regulating the supply of water to a tank automatically, and so that, when the waterin the tank reaches a given point the water will drain therefrom, and when below that point the water will enter the same, substantially as hereinafter fullydescribed, and as illustrated in the drawings, in which Figure 1 is a side elevation of my invention showing a portion of a return tank to which it is applied. Fig. 2 shows a side elevation of the same on a slightly enlarged scale. Fig. 3 is a longitudinal vertical central section of the valve. Fig. 4: is a detail view of the upper end portion of the valve-spindle of the exhaust valve of my invention,and Fig. 5 is a detail view of the block against which the float lever bears.

In the drawings A represents a suitable tank having a supply pipe a,the end of which entering said tank is, preferably, provided'with lateral arms, each of which has a longitudinally arranged series of perforations through which the water issues into the tank, or out through which the excess water drains, as will hereinafter more fully appear. The height to which the water rises in the tank is regulated by means of a suitable float B, through the medium of my improved regulating valve to which said float is connected by an arm, sub:

stantially as shown.

One end of my improved regulating valve is fastened in and to the head of thetank, preferably, on a plane indicating the low water mark in the tank at which it would be desirable to open said valve so as, to increase preferably, screw threaded as far as the circumferential flange c. This screwthreaded part is passed through a suitable opening in the head of the tank until stopped by said flange c, whereupon a nut b is screwed over said end to clamp the casing of the valve in place. I prefer to interpose a suitable packing ring 1) between said nut and the portion of the tank it would otherwise-come in contact with, so as to make a perfectly water tight globe-shaped inner part. of the portion D is provided with a vertically projecting inlet stub a, to which the main supply pipe (1 is coupled,'and diametrically opposite this stub a, is a handhole which is normally closed by the cover e. The waist'of this intermediate portion D is less in diameter than the remainder of its length so as to provide a Valveseat f against which the inlet valve G normally presses. The outer part of this intermediate portion D is provided with a downwardly projecting stub D to which the outer end of the tank supply pipe at is connected. The outer portion E of the casing of the valve is shaped'so'as to form practically a pipe angle, the inner flanged end edges of which are suitably secured to the correspondingly shaped outer end edges of the intermediate portion D. The'outer etid or discharge end of the portion E is, preferably, also screw threaded so as to be coupled to the pipe E leadingto a' drain or sewer. Just inside the plane of the downwardly extending discharge end of the portion E, it is provided with a suitable partition in which is a contracted opening, the inner annular edges of which are shaped as shown to provide a seat 2' for the discharge valve H.

Valve H is made of any suitable material, and'is securely fastenedto the outer end, of the horizontal spindle K, the outer end por- ICO tion of which is provided witha circumferentialtlange 2 which bears outward against said valve H, and between which and a nuth said valve is secured. The outer extremity of this spindle K is smooth and extends through and moves in a suitable guide'opening in a bridge spanning the outer end of the contracted opening normally closed by valve H. The part of the spindle K between the flange 2 and the tank, is of the same diameter, and extends centrally through the casing, to and through the valve G and the hollow stem L to the outer end of which said inner valve G is secured. This hollow stem L is provided with a circumferential flange near its outer end against which the valve G is placed and secured by means of a nut m; a washer -n being, preferably, placed between the said valve G and nut m to prevent abrasion of the valve.

The valves G and H are normally kept in their relative positions against their respective seats, by means of the expansion coil spring R, interposed between them and surrounding the spindle K, and having its ends pressing against said valves in opposite (lirections, as shown in the drawings.

The inner ends of both the stem L and the spindle K extend into the tank beyond the inner extremity of the casing of the valve, and the spindle K extends a suitable distance farther into the tank than the end of the hollow stem through which it passes. Now the obvious object is to draw valve H away from its seat when thewaterin thetankis too high,

additional water to the tank as needed.

so as to drain the surplus water therefrom into the sewer; and its object is likewise to push the valve G away from its seat, when the water in the tank is low, so as to supply To accomplish this result I provide an L-shaped lever N,which is fulcrumed in the arms o projecting upward from a collar 0 screwed onto the inner screw-threaded end of the casing inside the tank. The vertical arm of this lever extends downward from its fulcrum into a longitudinal slot intersecting the inner end of the spindle K diametrically and extending from its inner extremity to a point inside of theinner end of the stem L, as shown. I place on both sides of the vertical arm of lever N I- shaped blocks 9 and 10, respectively, the longitudinal webs of said blocks resting in the slots, and the heads thereof coming outside and bearing against the circumference of the spindle. The block 9 is secured in place by the lock-nuts 7 and 8, and the block 10 normally rests against the inner annular edges of the stem L. One of the peculiarities of this construction is that it enables the float in the tank to be given a limited movement without affecting the valve, thus enabling me to provide for a high water and low water danger mark between which the float may move without causing the water to enter the tank or discharge therefrom. Now the inner end of the horizontal arm of the lever N 1s suitably secured to the opposite end of the arm attached to the float B, and according as this arm moves, the lever N is operated so that its vertical arm will bear outward against the stem L to open the valve G and thereby increase the supply of water to the tank, or will draw the valve H inward through the medium of the spindle K so as to exhaust the surplus water from the tank into the sewer.

What I claim as new is- 1. The combination with a water tank, and a pipe discharging into the same, of a suitable float on the end of an arm, a lever to which said arm is connected, a valve closing the inlet leading to the pipe which discharges into said tank, and a valve closing a drain outlet out through which the backrush of water from the tank can drain, said inlet valve being above the drain valve and having a hollow stem arising therefrom, and said drain valve having a vertical spindle arising therefrom to and above the hollow stem of the inlet valve, said valves moving in opposite directions when closing and moved toward each other according to the movement of said lever in order to open.

2. The combination with a tank, and a pipe discharging into the same, of a float, a lever to which the said float is connected by a suitable arm, a valve G closing the inlet to said pipe, a sleeve stem arising therefrom, a valve H closing said drain pipe, a spindle arising therefrom and passing through said sleeve stem and an expansion spring placed between and bearing against said valves, and a suitable hollow casting having an inlet above valve G, a drain outlet below valve H and an outlet between said valves which connects with the pipe discharging into the tank; said lever depressing valve G when the Water in the tank is low, and raising valve H when the Water in the tank is too high, as set forth.

3. The combination with a tank, and an inlet pipe or supply pipe, of a float, an arm depending therefrom, an L-shaped lever to which the said arm is connected, a valve G closing the inlet passage a sleeve arising therefrom, a valve [-1 closing a drain outlet, a spindle arising therefrom which passes through and to a point above the said stem and having its upper end slit longitudinally and nut screwed onto the upper end of the same, an expansion spring placed between and pressing in opposite directions against said valves, and a suitable vertical hollow casting within which said valves are housed having a lateral inlet above the valve G, a lateral outlet connected to the supply leading to and discharging into the tank coming between said valves, anda drain outlet below valve H, said lever being L-shaped and having its horizontal arm entering the slit in the upper end of the spindle and lifting said spindle when said lever is moved in one direction and depressing said sleeve stem when moved in the opposite direction.

EBEN \VILMER LONG. Witnesses:

SAMUEL E. THOMASON, FRANK D. THOMASON.

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