US1371795A - Valve - Google Patents

Description

A. G. LOGAN.

VALVE.

APPLlcATloN FILED 0m29.191s.

Patented Mar. 15, 1921.

KMS?, 3 I 6 imi'iian stares .are

ARTHUR G. LOGAN, OF VJMUJUNT PLEASANT, PENNSYLVANIA.

VALVE.

Application mea December 2e, 1919.y serial No@ 347,935.

To all whom it may concern: f

Beit known that I, ARTHUR G. LOGAN, a citizen of the United States, residing at Mount Pleasant, in the county of Westmoreland and yState of Pennsylvania, have invented certain new and useful Improvements in Valves, of which the following is a speci: fication.

This invention relates to valves for controlling the iow from fittings having inlets for more than one fluid and has for its object the provision of a simple, inexpensive and durable device by the use of which water of any desired temperature or a mixture of any two liquids or gases may be drawn through a single outlet. The invention resides in certain novel features which are illustrated in the accompanying drawingsl yand will be hereinafter first fully described and then specifically pointed out in the appended claims. j i

In the drawings- Figure 1 is an elevation of a valve embodying my present invention;

Fig. 2 is a vertical section through the same taken longitudinally of the inlets;

Fig. 3 is a horizontal section through the inlets showing differentl positions of the inlet-controlling valves;

Fig. 4 is a view partly in plan and partly in horizontal section;

Fig. 5 is a detailperspective view of the valve-controlling cam. Y l

In carrying out my invention, I employ a valve casing 1 which consists essentially of a substantially cylindrical body having a closed bottom 2 and having an open top to receive a bonnet 3. In the wall of the body at diametrically opposite points thereof, I provide inlet openings 4 and these openings are preferably defined by nipples 5 which are exteriorly threaded so as to be engaged in the ends of the pipes, one conveying hot water and one conveying cold water to the valve casing. At a point intermediate the inlet openings, I provide an outlet opening 6 from which a spout '7 extends in the usual manner. Upon the inner wall of the valve casing or body, around the inlet openings, I provide flat portions 8 which constitute seats for the valves 9 and 10. These valves, in theillustrated embodiment of the invention, consist of disks having their inner opposed surfaces conveX, as shown at 11, and having stems 12 extending from their outer fiat faces. These stems may be of any desired formation and :are illustrated. as of ltubular' form having openings 13 in their inner portions whereby ample space is` provided for the flow of water into the chamber 0f the valve casing. The bonnet 3 is procette.

Vvided with a central opening to receive the' i the cam 15 and prevent leakage, the adjust- -ment of the nut or sleeve compensating for wear and the engagement of theseat or rib 16 with the top of the cam forming in effect a ground joint. At the upper end of the stem 14 is secured a wheel or other form of handle 18 which is retainedin position by .a washer 19 and a nut20, as will be readily understood, and around the stem below the said handle Ifsecure aA collar21 by a set `screw 22, as shown.

A pointer or marker arm 23 extends radially from thecollar 21 and is'properly shaped to clear. the upper Aproj ecting angular portion 24` of the bonnet f 3 and ride over the laterally extended rim 25 at the upper end of the valve casing. Notches or grooves 26 are .formed in the upper surface of the rim 25 and suitable indicia are engraved or'otherwise displayed so as-to regulate the flow of water in the desired manner.

The said operating campi' eccentric consists of a tapered bodyformed Vupon the rim at each of said grooves, as

integral with or rigidly secured to the lower end of the stem 14 and having its lower ex tremity ldisposed between the valves 9 and 10. A guide pin 27 is fixed upon the bottom 2 of the valve casing and rises therefrom to engage a socket 28 in the lower end of the cam or eccentric so as to aid in bringing the cam into its proper position when the` parts are being assembled and also hold it in said position after the parts have been assembled. It will be readily noted upon reference to Figs. 2 and 4 of the drawings that the stem 14 and the guide pin 27 are so disposed relative to the faces 29 and 30 of the cam that the face 29 will be closer to a valve than the opposite face 30 when said faces are pre-A and the temperature of the water thus controlled. It will also be noted that the cam is somewhat flattened or elongated so that l the end surfaces 31 are farther apart than the surfaces 29 and 30 and the pointer ori` marker arm 23 is so secured upon the stem `lll that it will lie in a radial plane of the stem which is approximately longitudinal of the cam, that is to say, passes through the faces 3l of the cam and is disposed between 'the ` faces 29 and 30 thereof. It will thus .be seen that if the marker points to the desigcam; It" the marker be brought to rest over the designation c"Hot on the rim 25, the cam" will be so disposed that its face 30 will be presented `to .the valve controlling the flow of "hot water whileone end surface 31 will have a portion in contact with the valve controlling the flow of cold water so that the latter valve will remain closed while the former valve will open andrby causing the camto assume an intermediate position both valves will be opened and the hot and cold water will mir within the valve casing and `flow together through the outlet spout. A greater `volume of hot or cold water may be drawn accordingly as the pointer is set at one `or the other of diametricallyopposite positions so that when mixed hot and cold water are being drawn the temperaturel may be regulated as desired. y

pMy improved valve is exceedingly simple inthe construction and arrangement of its parts and is; therefore, not apt to get out of order. It may be readily assembled f or disassembled and maybe, therefore,produced and installed at a very low cost. While the `device is intended more particularly for domestic use in drawing water, it may be employed to control the flow of any two liquids orgases which'are, at times, to be mixed.

Hav-ing thus described the invention, what is claimed as new is:

l. Adevice for the purpose set forth comprising a casing having diametrically 0pposed inletports 'and an outlet port intermediate the inlet ports, valves controlling the llow through the inletports and tending normally to open under pressure of inflowing fluid, a cam mounted for rotary movement between the valves' and comprising a downwardly tapered body having opposed faces at unequal distances 'from its ceiiterof Vrotation and othervfaces connecting the firstmenti'oned faces and disposed at equal distances from the center of rotation and at a greater dista-nce therefrom than either of the lirst-mentioned faces, a stem rising from 2. A. device for the purpose set forth comprising a casing having opposed inlet ports and an outlet port 'intermediate the inlet portsl valveecontrolling theullow through theinlet ports and opening inwardly under pressure of inflowing luid,1a fixed Vpin rising from the bottom oi the 'casing between the inlet ports, a` cam having its lower end fitting rotatably ovei' and resting "on said pin, the cambearing constantly on the inner faces of both valves, a stein rising from the cam through ,the top of the casingand a sleeve fitting in the topof the casing around the stem and having its lower end bearing directly on the upper end of the cam, said sleeve being adjustable along the stein.

In testimonyfwhereof I afHX mysignature.

ARTHUR G, LOGAN. [L a]

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