US733758A - Valve. - Google Patents

Description

PATENTED JULY 14, 19 03.

W. W. SPINNEY.

VALVE.

APPLIQATION FILED JAN. 17, 1903.

2 SHEETS-SHEET 1..

NO MODEL.

INVENTOR Wzviimey Walier WITNESSES:

ATTORNEYS No. 733,758. PATENTED JULY 14, 1903.

- W. W. SPINNEY.

VALVE.

APPLICATION FILED JAN. 17, 1903.

no MODEL. 7 I 2 SHEETS-SHEET 2;

Illllll llllllllllllll lllllllllllllll WITNESSES: INVENTOR' UNITED STATES.

Patented July 14, 1903.

P TENT OFFICE.

WALTER \V. SPINNEY, OF YORK, N. Y., ASSIGNOR TO VINCENT P. TRAVERS, JR, OF NEW YORK, N. Y.

VALVE.

SPECIFICATION forming part of Letters Patent N 0. 733,758, dated July 14, 1903. Application filed January 17,1903. Serial No. 139,386. (No model.)

T0 at whom it may concern:

Be it known that I, WALTER W. SPINNEY, a subject of the King of Great Britain, and a resident of the borough of Manhattan, city, county, and State of New York, have invented certain new and useful Improvements in Valves, of which the following is a specification.

My invention relates to valves which comprise a plug mounted to turn, and has for its object to provide a valvewhich will move with little friction, which will be easily taken apart, and which will be simple and compact in construction.

To this end my invention consists of certain features and combinations of parts, as will be described hereinafter and particularly pointed out in the appended claims.

Reference is to be had to the accompanying drawings, in which- Figure l is longitudinal sectional elevation of my improved valve. Fig. 2 is a cross-section thereof. Fig. 3 is a sectionalend view taken on line 3 3 of Fig. 1; and Fig. 4 is a side elevation of another form of my invention, and Fig. 5 is an end elevation of the same.

The valve comprises a casing A, with an inlet A and an outlet A between which is located the valve-seat A having a -port or channel A, which leads to the outlet A Within said casing and upon the cylindrical seat A is mounted to turn a valve B. This valve has cylindrical end portions, which directly engage the walls of the casing and form trunnions, as it were, for the valve-body. Between these cylindrical portions, or heads, as they may be termed, the valve-body is reduced in width toward the center at one side, so that only a portion of the central section of the valve-body is adapted for engagement with the walls of the casing, and the approximately radial surfaces of this central section are preferably concave, and one of them is receive the valve-stem O, which-at its ends is formed with enlarged portions 0', so that the valve-body is received between shoulders of the valve-stem, thus preventing any longitudinal displacement of the valve-stem and the valve-body relatively to each other. The central portion of the valve-stem--that is, the portion which fits sidewise into the valvebodyis flat and'preferably rounded at that edge which is exposed to the fluid when the stem is connected with the valve -body, as shown in Fig. 2. The stem U extends through a stuffing-box D and through the cover D of said box.

By the construction so far described I am enabled to considerably reduce the size of the valve-body surface which engages the valveseat. Furthermore, the particular way of connecting the valve-body with the valve-stem holds these parts together firmly while in use, yet enables them to be readily separated after the stuffing-box has been removed and the valve-stem has been pulled out with the valve-body. I find that when using a valve with a reduced bearing-surface on its seat,

as described, there is some danger in turning the valve to close it of giving the valve too large a throw, and thus causing it to open again. To prevent this, I have provided the following arrangement: The stuffing-box cover D is provided with projections D adapted to fit accurately intocorresponding openings of a stop member E. This stop member is held against turning relatively to the valve-stem in any suitable manner. For instance, the stop member may be provided with a flange E, having segmental slots E, which enable it to be secured to the 'valvecasing A by means of the same bolts F which hold the head or cap G to the end of the easing A. The stop member E has an opening E within which is adapted to play a projection 0 upon the valve-stem C. It will thus be seen that the throw of the valve is limited, and it can be moved only from the full open position to the closed position.

My improved valve may be applied wherever Valves of this character are available, and merely as an instance of a possible use I have in Figs. 1, 2, 4:, and 5 indicated a leverarm H, secured to the valve-stem O and carrying afloat H, so that the movement of the valve will be regulated by that of the float in a manner well known in the art.

In Figs. 4: and 5 I haveshown another construction of the stop member, which here consists of two bars J, arranged to engage the casing A adjacent to the inlet A and extending on each side of the lever-arm H, so as to limit its motion as well as that of the valve or valve-body B B.

Various modifications may be made Without departing from the nature of my invention.

What I claim, and desire to secure by Letters Patent, is-- 1. The combination, with the valve-casing, of a valve mounted to turn therein, and comprising a valve-body having two heads and a reduced central portion therebetween, said body being slotted lengthwise from one side, and a valve-stem adapted to be inserted sidewise into the longitudinal slot of the valvebody.

2. The combination, with the valve-casing, of a valve mounted to turn therein, and comprising a valve-stem and a longitudinallyslotted valve-body concentric with the valvestem and embracing the same, the slot of the body extending across the center of the valve so as to lie on opposite sides of the valves axis.

3. The combination, with the valve-casing, of a valve comprising a body having a longitudinal slot extending to one side and a valvestem havinga portion adapted to be inserted laterally into said slot of the valve-body, and enlarged portions forming shoulders to engage the ends of the valve-body and to prevent said body and the stem from moving lengthwise relatively to each other.

4. The combination, with the casing, of a valve mounted to turn therein, and compris ing a valve-body having substantially cylindrical heads and a central section therebetween, said central section havinga segmen tal cylindrical surface flush with that of the heads, and side surfaces converging from the ends of said segmental cylindrical surface toward a point adjacent to the axis of the valve-body, the heads of the valve-body and the reduced central portion between said heads being provided with a longitudinal slot open at one side of the valve-body, and a valve-stem adapted to be inserted laterally into said slot.

5. The combination, with the casing, acap having a stuffing-box, the stutfing-box cover having projections on its outer face, the stop member arranged to engage said projections and provided with an opening, and bolts for securing both said stop member and the cap to the casing, of a valve mounted to turn in said casing and provided with a projection arranged to play in the opening of the stop member.

6. The combination of the valve-casing with a valve mounted to turn therein, said valve comprising a valve-body which is slotted lengthwise and provided with two heads and a reduced central portion between them and a valve-stem arranged to be inserted laterally into the slot of the body and provided exteriorly of the casing with an arm or projection extending laterally, and a stop member secured to the casing and arranged to he engaged by said arm or projection to limit the throw of the valve.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

WALTER W. SPINNEY.

Witnesses:

EUGENE EBLE, MICHAEL E. CONNDINE.

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