US563946A

US563946A - Valve

Info

Publication number: US563946A
Authority: US
Publication date: 1896-07-14
Anticipated expiration: 1913-07-14

Description

v(No Model.)

H. E. WELLS. VALVE.

UNITED STATES` v PATENT OFFICE.

HAMILTON E. VELLS, OF PORTSMOUTH, OHIO.

VALVE.

SPECIFICATION forming part of Letters Patent No. 563,946, dated July 14, 1896.

Application filed August 19, 1895. serialNo. 559,758. (No model.)

To all whom it may concern:

Be it known that l, HAMILTON E. WELLS, a citizen of the United States, residing at Portsmouth, State of Ohio, have invented certain new and useful Improvements in Valves, of which I do declare' the following to be a full, clear, and exact description, reference being had to the accompanying drawings, forming a part of this specification.

The present invention has for its object to provide a novel construction of valve that shall be simple, durable, and cheap, that may be readily adjusted to compensate for wear, and that shall overcome the difficulties incident to globe and similar valves as now commonly constructed. This object 0f invention I have accomplished by the novel construction of valve hereinafter described,illustrated in the accompanying drawings, and particularly pointed out in the claims at the end of this specification.

Figure l is a view in side elevation of my improved valve. Fig. 2 is a view in vertical section on line 2 2 of Fig. 3. Fig. 3 is a view in elevation with one section of the valvecasing removed. Fig. 4 is a view in horizontal section on line 4 4 of Fig. 2. Fig. '5 is a detail central sectional view of the lower portion of the globe-valve.

The inclosin g casing of myimproved valve consists of the sections A and A, that are formed with lateral flanges a and a', united by through-bolts a2. Each of the casing-sections A and A is formed with a port d3, to which are connected the sections B of the pipe in which the valve is interposed. The ports a3 of the casing-sections will be formed of the same diameter as the interior of the pipe B, and one of the advantages incident to my improved construction of valve is that the valve-casing and valve will allow for an opening of the same diameter as the pipe B, so that no obstruction of the pipe by the interposition of the valve will be had. Each of the casing-sections A and A is formed with a seat 2 to receive the abutting part of the globe-valve O, the stem c of this valve extending upward through the cap A3, that is threaded to engage the threaded upward eX- tensions A2 of the casing-sections. This cap A3 serves not only to aid in holding the casing-sections irmly together, but also serves to receive` the packing a, through which the stem c of the valve O passes. Preferably the inner face of each of the casing-sections will be formed with a shallow groove c to receive a packing strip c2 to guard against leakage.

In the preferred form of my invention the valve O and more or less of its stem c, as more clearly shown in Fig. 3, are formed of two longitudinal sections, and by preference each of these sections is provided at its base with a projection c4, that sets within a seat c5, formed in the casing, as seen in Figs. 2 and 3, the valve-sections being forced normally apart bythe washer R, setting over a stud r, and serving to insure a snug bearing and guard against leakage. At the upper end of the valve-stem c is a hand-wheel D, whereby the valve can be turned to open and close it. The stem c of the valve O is hollow from end to end, and at the base of the stem each of the valve-sections is formed with aninclined surface, against which bears the inclined or wedge-shaped lower end of a spreader E, this spreader having connected thereto a stem c, that extends upwardly through the valvestem c and is provided at its upper end with a hand-wheel e or other means whereby it may be conveniently turned.

The stem e of the spreader E has preferably throughout a portion of its length screwthreads that engage with' corresponding threads formed upon the interior of the valvestem c. The purpose ofthe spreader E is to separate or spread the sections of the valve O, so as to secure a snug lit of the valve O against its seat and compensate for wear. The stem o of the valve is shown as provided with a suitable pin 5, (see Fig. 3,) that moves within a groove 6, formed in the neck of the valve-casing, the'groove and pin serving to limit the turning movement of the valve C in manner well understood.

From the foregoing description it will be seen that when the valve is in the open position shown in Fig. 2 it can be turned by means of the hand-wheel D, so as to cut off the flow of liquid through the valve. lVhen it is desired to tighten the valve O against its seat, as, for example, to compensate for wear, the hand-wheel c will be turned, so as to cause the spreader E to move upward, and as the spreader E thus moves upward it will wedge IOO or spread outward thesections of the valve E,'causin g these valve-sections to bear snugly against their seats. By manipulating the hand-wheel e the valve C can be caused to bear against its seat with any desired degree of force, and when the valve is to be shifted a reverse movement of the hand-wheel e will permit the sections to ease or free themselves from their seats, thus avoiding all wear in the operation of the valve. So, also, with my improved construction of valve all danger of obstructions lodging between the valve and its seat is entirely avoided.

While I have shown what IV regard as the preferred form of my invention, it is manifest that the details of construction may be varied within wide limits without departing from the spirit of the invention. Thus, for example, it is not essential, although preferable, that the valve-sections of the valve C should be united at their top ends so long as the sections are so arranged that they can be spread apart. So, also, I have devised other forms of sprcaders which might be substituted for the spreader E, and I therefore do not wish my invention to be understood as restricted to this particular construction of spreader.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

l.. The combination with a suitable casing having a seat, of a valve within said seat, said valve being provided with an unobstructed bore or opening therethrough for passage of fiuid and bei ng formed of expansible sect-ions, a hollow stem extending from said sections through the casing, and a spreader located between said expansible sections above the bore or opening of the valve and a stem exten din g from said spreader through the valvestein and outside the casing, substantially as described.

2. The combination with a suitable casing having a spherical seat, of a spherical valve within said seat, said valve being provided with an unobstructed bore or opening therethrough for passage of fluid and being formed of expansible sections, a hollow stem extending from said sections through the casin g, and a spreader located between said expansible sections above the bore or opening of the valve and a stem extending from said spreader through the valve-stein and outside the casing, substantially as described.

3. The combination with a suitable valveextending outside the casing for manipulatf ing said spherical valve, and a second stein whereby said spreader may be operated.

4t. The combination with a suitable casing, having a spherical valve-seat, of a spherical valve formed of expansible sections having an opening therethrough for the passage of iiuid and having interior inclined surfaces and having a hollow stem, and a verticallymovable spreader so arranged as not to obstruct the bore or opening of said valve and engaging the interior inclined surfaces of the valve-sections, and having a stem extending through the hollow valve stem, suitable threads being formed upon the valve-stein and spreader-stein, substantially as described.

5. The combination with a suitable casing, of a spherical valve formed of expansible sections, a hollow stem formed in piece with said valve-seetions, said valve-sections being provided with inclined surfaces at the base of said hollow stein and a spreader arranged outside the bore or opening of said valve and in position to engage said inclined surfaces, and a stem for said spreader extending through the valve-stem and provided with means whereby it may be manipulated, substantially as described.

G. The combination with a casing provided with a seat and formed of separable sections and means whereby said sections may be united together, of a valve within said seat, said valve being provided with an unobstructed bore or opening therethrough for passage of iiuid and being formed of expansible sections, a hollow stem extending from said sections through the casing and a spreaderloeated between said expansible sections above the bore or opening of the valve and a stem extending from said spreader through the valve-stem and outside the casing, substantially as described.

HAMILTON E. WELLS. Titnesses J. R. I-IUGI-ins, WESLEY RIDENOUR.

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