US429294A - Valve - Google Patents

Description

(No Model.)

' G. VINING.

VALVE Patented June 3, 1890.

/l g fzvenor:

UNITED STATES PATENT OFFICE.

GEORGE VINING, OF HARTFORD, CONNECTICUT.

VALVE.

SPECIFICATION forming part of Lettere Patent Ne. 429,294, dated June 3,1890.

Application led December '7, 1889. Serial No. 332,915. (No model.)

To all whom lit may concern:

Be it known that I, VGEORGE VINING, of Hartford, in the county of Hartford and State of Connecticut, have invented certain new and useful Improvements in Valves, of which the following is a full, clear, and exact description, whereby any one skilled in the art can make and use the same.

The object of my invention is to providea Huid-valve that shall be simple and strong in construction, and provided with means for compensatingautomatically for any wear of the plug or gates, so that a leaking of the valve is practically prevented.

To this end my invention consists in the combination, with the sectional valve-body having the iiuidway, of the valve-gates and gate supports, with the chamber between them and the valve-spindle; and it further consists in details of the severals parts, and in their combination, as more particularly hereinafter described, and pointed out in the claim.

Referring to the drawings, Figure l is a detailview, in vertical central section, through the valve body and gates on a planerin line with the axis of the valve inlet and outlet. Fig. 2 is a detail view,in' cross-section, of the valve-body at right angles to the line of the openings. Fig. 3 is a detail view, in horizont tal section, through the valve on plane denoted by line' se y of Fig. 1.

In the accompanying drawings, the letter a denotes a valve-body that may be made in the usual manner and of metal cast to shape;

b, the inlet, and lc the outlet formed for the passage of the fluid through the walls of the valve-body. The upper part` of the valvebody is closed by means of ascrew-cap d, having an opening for the passage of the valvespindle e, the said opening beingpacked by a gland f of the usual construction.

Within the valve-body the gates g g are arranged in a vertical position, wit-h their outer faces shaped to snugly fit the inner wall of the valve-body, the gates extending from top to bottom of the chamber in the valve-body, and being of a width to extend completely across the inlet and outlet openings in the valve-body. These gates are pref-l erably made separate from the valve-spindle and provided with tongues or projections h,

that fit into grooves h in the lower end of the valve-stem in such manner as to cause the gates to slide (in this case in a circular plane) whenever the valve-spindle is rotated.

It is important to the operation of my improvement that there shall be a chamber t' beneath the valve-stem and between the gates in line with the inlet and outlet openings of the valve-body. The `function or purpose served by this chamber is to receive any fluid that may leak through from the inlet side b of the valve, so that Whatever pressure there may be on the inlet side of the valve shall be utilized to pack the valve Vin case there is any leakage of the fluid into this chamber byreaf son of the wear of the .parts-that areV sliding in contact. Y,

In addition to the separate gates g g', the lower end of the piston is provided with spring-chambers, in which are seated springs j, that thrust outward against the back faces of the gates about central of their length and tend to pack the valve by holding the gates in close contact with the inner walls of the valve.

In order to prevent the springing of the lower end of the gates by reason of any great pressure that may be brought upon them, the lower ends are supported by the disk 7c, that may be inserted between them; or the lower ends of the gates may enter an annular groove cut into the bottom of the valve-body.

I claim as my invention- In a valve, in combination with the valvebody having the inlet and outlet openings, the gates extending from top to bottom within the valve-chamber and adapted to cover the respective openings through thevalve-body, the spindle engaging lugs on the inner sides of the gates, the spindle with the lug-sockets and the spring-sockets, the springs seated in radial sockets in the valve-spindle, the chamber below the bottoln end of the valve-spindle, and between the back surface of the gates in line of the openings through Ythe valvebody and the gate-supporting groove in the bottom of. the valve-body, all substantially as described.

GEORGE VINING. Witnesses:

CHAs. L. BUEDETT, A. B. JENKINS.

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