US817040A - Valve and cock. - Google Patents

Description

No. 817,040. PATENTED APR. 3, 1906.

P. G. BUCK.

VALVE AND COCK.

I APPLIOATION FILED MAYlS, 1905.

' harm mu WMVQ'M Wawys UNITED STATES PATENT OFFICE.

BUCK, OF PRAHRAN, VICTORIA, AUSTRALIA.

VALVE AND COCK.

Specification of Letters Patent.

PatentedApril 3, 19.06.

' subject of the King of Great Britain and Ireland, &c., residing at Prahran, in the State of Victoria, Commonwealth of Australia, have invented certain new and useful Improvements in Valves and'Cocks; and I do hereby declare the following to be a full, clear, and

exact description of the invention, such as will'enable others skilled in the art to which it appertainsto make and use the'same.

These improvements, which are applicable to various kinds of cocks and valves, possess the advantages of conducing to lon life of the wearing parts, of allowing an uno structed flow past the valve -'seat, of effecting a tight closure of the valve u on its seatby the pressure of the fluid itsel of admitting of rapid and easy adjustment of the operating handle, lever, or plug, and some other advan tages which will in due course be apparent.

The main valve ofmy device is of the variety adapted to lift by pressure from its inlet side, and the chamber into which it lifts or in which it moves (hereinafter called the valvechamber) is provided with a by-pass within the casing connecting with the fluid-passage or tubing ateach side ofthe valve-seat. The byass is conveniently made in two distinct or isconnected parts, one part called the feed, or-inlet byass, being open at all times to the main in ct of the fluid-supply, so as to keep the valve-chamber full of fluid, and the other part or discharge by-pass being normally closed by a plug, spindle, or other easily-operated subsidiaryvalve device. As soon as the plug (of comparatively small diameter with a conical or needle valve or other suitable by-passclosing device) opens water from the aforesaid valve-chamber will escape through the discharge by-pass, and the pressure in that chamber on the lift-valve being thus lessened the valve will rise clear of its seat by the pressure beneath of the main supply. Once the lift-valve opens any subsequent increase of the fluid-pressure from the main inlet side will tend to further/open it. The extent of the rise of the valve is, if desired, regulated by means of an adjustment on its spindle or by any adjlpstment above said valve limiting its rise or y equivalent means. As soon as the outlet by-pass valve is sli htly opened fluid will begin escaping from t e cock, and the rate of escape wi 1 increase as the opening is'enlarged and being largely increased when the main valve 0 ens.

Before procee ing to mention the further details of the construction reference will be made to the accompanying drawings, in which a simple form of the invention-is illustrated by way of example, for it will readily be understood that sundry. variations may be made while keeping within the scope of the invention.

Figure 1 shows a cock in side elevation; Fig. 2, a plan view of the parts in Fig. 1 with the valve-chamber cap removed; Fig. 3, a

front elevation, and Fig. 4 the cock, partly in vertical middle section, and Figs. 5 to 7 show in vertical middle section valve parts or ad- 'uncts, which when assembled have functions ereinafter explained.

In the drawings, ashows the inlet, and b the outlet, passages of the cook or tubing'with-a valve-opening having seat 0 shown shoulderedat the base of a valve-chamber d of larger diameter than said opening. The inlet-by-passpassage is marked 6 and the outlet one both communicating with chamber cl, in w ich the assemblage of valve parts is located and marked g. Communication through the discharge by-pass between chamber d and outlet 1) is opened or cut off by any suitable plug h with a small valve & and a handle j. i

In Fig. 4 the small valve i, controlling bypass and the main valve 9 are both shown raised above their seats, so that fluid can then flow through all the passages a, to f, and plu h is shown screwed in a casing Z and wit coned valve 'i. m and n are side stops on casin Z, limiting the travel of a projection 0 on the andle y, the modes of arranging and positions of which may be obviously varied in many ways.

7c shows any suitable closure for the valvechamber (1, as a screw-cap with washer, the cap being in some cases recessed on the inner side, as shown.

The valve-stem spindle p carries a cupped Washer q, of leather, rubber, or similarly suitable material, the pressure of the fluid in the valve-chamber d pressing the cup-rim closely IIO on b nut t, screwed on the spindle p, into which is inserted a disk orfacing w, of rubber or'suitable material. to act as a valve-face protected by an outer rim of metal or other strong material. u shows an apertured cap suitable for this purpose, adapted to screw or fasten to bod r.

y The operating-handle is best made so that I at, each end of its stroke it is not liable to move further by gravity, but rests or has a shoulder that rests upon a sto or its valve end tightens on its seat. The andle 7' may swee the upper part of a circle in its travel and ave the stop or stops on n at opposite sides of a vertical diameter thereof.

The by-pass assages are located so that they may be easi cleaned from time to time. Thus passage e as ordinarily a removable plug or stopping y, and as the invention is applicable to other fluids as well as to water small stop-nut a: is screwed on stem p to limit the rise of the main valve; in others the recess in cap 7:: has its de th regulated to suit. The recess acts as a gui e, but in its absence some other stop is easily provided, it being kept in view that the by-pass ports of chamber (1 must be protected from closure by valve 9. Their location is a means serving this end in some cases.

Various parts and minor details shown are in some cases omitted, and there are other obvious modifications practicable while yet retaining some feature of value pertaining to my invention.

What I do claim as m invention, and desire to secure by Letters atent of the United States, is-

A cock or faucet provided with a casing, having a central valve-chamber, an inlet and an outlet therefor, a cap fitting in said chamber, a by-pass formed in the wall of said casing, the lower 1portion of said by-pass communicating wit said inlet and the upper portion communicating with said valve-cham her, a supplemental cap fitting in said inlet hypass, said valve-chamber cap having a flange adapted to lap over said supplemental cap, when thelatter is inserted in said inlet'bypass, a second b -pass formed in the wall of said casing, the ower portion of which communicates with said outlet, and the upper portion of which communicates with said valve-chamber, the mouths of the upper portions of both the inlet and outlet by-passes, communicating with the valve-chamber, being disposed opposite one another, in combination with a valve 0 crating in said valvechamber between said inlet and outlet, and an auxiliary valve controllin said outlet by-pass substantially as descrifled.

In witness whereof I have hereunto set my hand in the presence of two witnesses.

FRANK OROOM BUCK. Witnesses:

GEORGE G. TURRI, ANTHONY J. CALLINAN.

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