US281394A - Globe or similar valve - Google Patents

Description

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. J. L. PHILLIPS.

GLOBE 0R SIMILAR VALVE.

lllllll Patented July 17, 1883.

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UNITED STATES JAMES L. PHILLIPS, OF \VOROESTER, MASSACHUSETTS.

GLOBE OR SIMILAR VALVE.

SPECIFICATION forming part ,of Letters Patent N0. 281,394, dated July 1'7, 1883.

Application filed October 3, 1882. (No model.)

To all whom it may concern.-

Be it known that I, J AMES L. PHILLIPS, of

WVorcester, in the county of WVorces'ter and State of Massachusetts, have invented certain new and useful Improvements in Globe or Similar Valves; and I do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the accompanying drawings, forming a part of this specification, and in which- Figure 1 represents a central vertical section through my aforesaid improved valve. Fig. 2 represents an end view of one-half of the outside of the valve shown in Fig. 1 and one-half of some of its interior parts, which will be hereinafter more fully described; and

, Figs. 3, 4, and 5 represent portions of the valve in detail, which will also be hereinafter more fully described.

My invention relates more particularly to steam-valves, and that class of valves known as globe valves, although it may be applied to other similar kinds of valves.

It consists in dispensing with the usual packing employed around the stem of a valve and substituting in lieu thereof an automatic valve device, whereby the escapement of steam or similar products is effectually prevented around said stem.

To enable those skilled in the art to which my invention belongs to make and use the same, I will proceed to describe it more in detail.

In the drawings, 0 represents the globe of the valve; D D, the thread ends; E, the neck; F, the t'urninghandle; G, the stem, and H the gate.

The stem G is provided at its lower end with a screw part, a, which fits into a correspondingly-shaped opening in the gate H, so that said gate may be raised and lowered to open and close the valve, in the usual way, by turning handle F; and said gate H is provided with a leather or metal base, I), which fits tightly over the valve-seat I, formed on the globe O of the valve.

The neck E of the valve is provided with an enlarged portion, K, so as to form a circular surface, K, upon its inner side, which acts as a valve-seat for the circular convex-shaped valve L, formed or secured upon the stem G, and above said enlarged part K said neck E is cut away at M to receive a spiral spring, N. The bottomof said spring rests on the stationary shoulder c of the neck, while its upper end bears against a washer, (I, placed over the stem between the upper end of the neck and the lower end of the hubF of the turninghandle F. Therefore strong upward pressure is produced upon the stem, (the hub of the han dle being secured to the same,) which causes the circular convex part L to be firmly held against the concave part K. In practice these parts are ground until a perfect fit is obtained. Thus it will be seen that the valve is selfpacking around the stem, the valve always being kept closed by the spiral spring N, as aforesaid, independent of the opening and closing of the main valve.

The gate H is prevented from turning, so that the screw part a, when turned, will raise and lower it, and is also guided in its vertical movement by having flanges f f formed on the same, which fit into and slide up and down in ways 9, formed in the part 0 of the valve.

In Fig". 3 of the drawings, (which represents a horizontal section taken on line A B, Fig. 1, looking down,) one-half of the gate is shown in plan view fitted in position in the valve, while Figs. 4 and 5 represent a detached side view and plan View, respectively, of said gate H.

If desired, the washer d may be dispensed with, and instead of making the concave part K in the form of a half-circle and the valve part L hemispherical in shape, the latter may be made of any other shape suitable for the purpose, and the circular concave surface K correspondingly formed to fit said part.

Having described my improvement in globe and similar valves, what I claim therein as new and of my invention, and desire to secure by Letters Patent, is-

In a globe or similar valve, the combination, with the stem G, provided with valve portion L, and neck E, provided with the circular concave part or valve-seat K, and cut away at M, of spiral spring N, washer d, and turninghandle F, provided with the hub F, substantially as and for the purpose set forth.

. JAMES L. PHILLIPS.

Witnesses:

WILLIAM A. BQWNE, ALBERT A. BARKER.

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