US738523A - Ball cock or valve. - Google Patents

Description

No. 738,528. PATENTED SEPT. a, 1903. J. CABLE. BALL COOK OR VALVE.

APPLIOATION FILED JAN. 13, 1902.

. H0 MODEL. ETS-SHEET 1.

PATENTED SEPT. a, 1903.

J. H. CABLE. BALL GOGK OR VALVE.

APPLICATION. FILED JAN. 13, 1902.

2 SHEETS-SIHEET 2.

N0 MODEL.

INVENTOR:

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' TTORNEY5.

UNITED STATES Patented September 8, 1903.

PATENT OFFICE.

BALL COCK OR VALVE.

SPECIFICATION forming part of Letters Patent N 0. 738,523, dated September 8, 1903. Application filed Januaryl3, 1902. $erial No. 89,547. (No model.)

To all whom, it ntay concern:

Be it known that I, JOHN H. CABLE, acitizen of the United States, residing at Montclair, in the county of Essex and State of New Jersey, have invented certain new and useful Improvements in Ball Cocks or Valves; 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 appertains to make and use the same, reference being had to the accompanying drawings, and to letters of reference marked thereon, which form a part of this specification.

Thisinvention relates to that class of valves which are used on tanks or reservoirs and operated by a float or ball to control the inflow to said tank and keep the same always full.

The objects of the invention are to provide a coupling to which different sizes of pipe can be connected, to secure a construction in which a single valve is employed, to enable said valve to be operated directly against the supply -pressure, to secure simplicity and cheapness of construction, and to obtain other advantages and results, some of which may be referred to hereinafter in connection with the description of the working parts.

The invention consists in theimproved ball cock or valve and in the arrangements and combinations of parts of the same, all substantially as will be hereinafter set forth and finally embraced in the claim.

Referring to the accompanying drawings,

in which like letters of referenceindicate corresponding parts in each of the several figures, Figure 1 is a plan of my invention, and

Fig. 2 is a side elevation of the same as applied to a tank or reservoir. Fig. 3 is a vertical longitudinal section of the valve audits parts. Fig. ,4 is an end view of the valve-seat. Fig. 5 is a detail side view of the valve and valve-stem. Fig. 6 is a section of the same on line 00, Fig. 5; and Fig. 7 is an end view of a valve-rubber detached.

In said drawings, a a indicate the walls of a tank or reservoir to which my improved valve or cock is applied, and 1) indicates a horizontally-disposed tubular member having ears or lugs b b, by means of which it is secured to the edge of the reservoir-walls, as is common. The end of said horizontal mem- -b and clutches the collar cl, as usual.

ber projecting outside the tank is screwthreaded, as at W, to receive acoupling-piecc c, which may be bent angularly, as shown, or of any other suitable form. The extremity of said coupling-piece c is threaded, as at c, to receive a supply-pipe of any usual kind, and back from said threaded extremity is an enlarged annular portion 0, also threaded and to which the supply-pipe can be applied in case its diameter is too great for the extremity c. The coupling-piece is thus adapted to receive connections of two difierent sizes. Atits end next the horizontal member I) the coupling-piece is exteriorly threaded to receive a ring or collar (55, preferably screwed on flush with the extremity of the couplingpiece and adapted to serve in place of the usual integral flange to receive the coupling e, which screws upon the horizontal membfir T e said collar must be removable in my improved construction, so as to permit the coupling e to be first slipped onto the piece 0, since it will not pass the enlarged annular threaded portion 0 To the end of the horizontal member I) which projects inwardly over the tank is screwed a hollow casting f, constituting the body portion of my valve. The end of said body portion which is screwed into the horizontal member b has a passage and the opposite wall or end has a perforationf in alinement therewith, the said opening being adapted to receive the stem h of a valve h, lying in the horizontal member I) and adapted to close the mouth of the passage 9. The perforation f is simply for the valve-stem to extend through outside of the body portion f and may be closed by a stuffing-box i of any suitable construction. At its outer end the valve-stem h is pivoted to the angle or bend of a bell-crank leverj, one of whose arms, as j, preferably extends upwardly and is pivoted to a sup- .porting arm or bracket is, projecting from the top of the body portion f or any other suitable fixed part, but preferably screwed into a seat tapped in the top of said body. The other armj of the bell-crank lever extends outward over the interior of the tank to receive a rod I, having a ball or float Z of any known kind at its end and by which the valve is to be reciprocated in the usual wellknown way. The lower partof the body portion f is apertured, as at f to permit the escape of water which has been admitted to its interior by the valve h, and preferably the usual hush-pipe m is screwed at its upper end into said aperture.

The particular construction of the valve h and passage 9 forms an important feature of my invention, and this will next be described in detail. The object of this particular construction of said parts is to enable the valve to be properly opened and closed by the float Z, notwithstanding the flow-pressure of the water passing said valve, for it will be noted that I employ only a single valve. The passage g is at its mouth or end next the valve only very slightly larger than the valve-stem lying therein and which is here made cylindrical, as at n, (see Fig. 6,) said passage thus serving as a guide to hold the valve-stein in alinement and, what is more important, providing only a small outlet when the valve first lifts. To secure an ample flow, however,when the valve is opened, the cylindrical portion n of the stem is provided at its exterior with longitudinal grooves 'n', which begin a little back from the valve h and extend to the rear end of the portion n. Furthermore, the passage g is preferably enlarged rearward to facilitate flow. The mouth of the passageg or end next the valve forms a seat therefor, and to this end is slightly flared or rounded outwardly, as at 0. Thevalve itself is of rubber or like material and is cylindrical in form,

with ends rounded, as atp,to fit nicely against 9 to any appreciable extent. Said valve is bored longitudinally, as at 10 to fit onto a reduced extension h of the valve-stem,threaded at its end to receive a retaining-nut r. A washer s, shaped to conform to the rounded surfacep of the valve at its unused end and cover the same against any possible injury, may be placed beneath the said nut '1", it being understood that the valve is double'ended and adapted to be reversed when worn at one end. 4

The valve end next the valve-seat 0, it will be understood, presents thereto a surface curved oppositely from said seat, so that their convexities come together in closing, and thus a small impact area is secured. This facilitates an easy opening of the valve against cessively increased by distinct and separated enlargements as distinguished from a mere gradual increase. At first the valve separates slightly from its seat and forms a very small outlet. The annular space around the valve-stem then presents an enlarged escape, and an instant later the grooves in said valvestem further increase the capacity of the outlet. The result of this is to obtain a very easy and practicable opening of the valve. Preferably the rounded end of the rubber valve is on a curve of greater radius than the rounding of the seat, so that there can be no sticking therein.

By the construction thus described I secure a valve which will readily open and close notwithstanding the flow-pressure of water and at all times maintain a proper relation to its seat. At the same time the construction is simple and easily made and kept in order.

Having thus described the invention, what I claim as new is- A ball-cock or float-valve for flushing-tanks, comprising a tubular member 01, adapted to be secured to a flushing-tank, a body portion f, adapted to be removably secured to, and supported by, the said member at its inner end, said body portion comprising a hollow casting having at its side next the member (1, an elongated frusto-conical passage g, leading thereinto, said passage being of greater length than diameter, with and having its outer edges rounded, avalve-stem extending through said passage g, a valve of rubber or the like on the end of said stem lying within the member I), and presenting to the outwardly-rounded end of the passage g, an end oppositely rounded on a curvature of greater radius, the said valve-stem having adjacent to said valve a cylindrical portion forming with the smallest portion of the passage a narrow annular flow-space, said cylindrical portion having its outer surface longitudinally grooved from a point a little back from the valve to its opposite end, means for slidably supporting the opposite end of the valvestem, and a ball or float connected to said stem, whereby upon continued opening movement of the valve away from its seat the flow-passage is increased by a series of successive steps or distinct enlargements from a very slight opening to an ample space.

In testimony that I claim the foregoing I have hereunto set my hand this 31st day of December, 1901.

JOHN H. CABLE.

Witnesses:

CHARLES H. PELL, C. B. PITNEY.

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