US995193A - Valve. - Google Patents

Description

T. R. STANLEY.

VALVE.

APPLIOATION FILED Nov. '1, 1910.

y 995,193, Patented June 13, 1911.

l f 564 9 lo vFIGA.

srs frana i FR@ THON-ASR, STANLEY, 0F OIL CITY, PENNSYLVANl-A.

VALVE.

To all whom it ma/,y concern:

Be it lrnown that I, THOMAS R. STANLEY, a citizen of the United States, residing at Oil City, in the county of Venango and State of Pennsylvania, have invented certain new and useful Improvements in Valvesg and I do declare the following to the plug may be adjusted from either end ofl the valve.

Another object is to provide an improved means for locking the plug adjusting mechanism whereby the plug will be securely held in operative engagement with its seat.

lith the foregoing and other objects in view, the invention consists of certain novel features of construction, combination and arrangement of parts as will be more fully described and particularly pointed out in the appended claim.

In the accompanying drawings: Figure 1 is a top plan view partly in section of a valve constructed in accordance with the invention; Fig. 2 is a side view thereof; Fig. 3 is an end view of the same; Fig. 4, is a detail perspective view of the locking lever for the plug adjusting and holding cap.

Referring more particularly to the drawings, 1 denotes the casing of my improved valve, said casing having in its opposite sides inlet and discharge passages 2 and 3a and having formed therein between said passages a tapered valve seat 3. The valve seat 3 opens through one end of the valve casing and is adapted to receive a tapered plug valve 4 which is adapted to snugly tit said seat and to be held in adjustable engagement therewith by adjusting devices hereinafter described. The valve 4f is here shown as being of hollow construction and has formed at diametrically opposite points in the side walls thereof, passages 5 which when turned in alinement with the passages 2 and 3 in the valve casing permit iiuid to pass through the valve.

On the outer end of the valve is formed L Specification of Letters Patent.

' Application filed November 7;, 1510,

vPatented J une'13, 1911. Serial No. 591,039

a reduced cylindrical shank or Stem 6 having a squared outerend 7 with which is adapted to be engagedl a wrench or operatJ ing handle (not shown). The adjacent end of the casing 1 is threaded as'shown at 8 and'on said threaded end is adaptedto be screwed arplug holding and adjusting cap 9 .having formed therein a centrally Ydisposed circular passage through which the stein 7 projects. The Cap 9 when screwed onto the threaded end 8 of the casing is adapted to engage the annular shoulder formed by the reduced stem of the plug whereby when said cap is screwed Vup the end of the plug will he forced into tight engagement with its seat.

In the outer edge of the cap 9 is formed a series of notches 10 with one of which vis 'adapted to be engaged the tooth 11 of a locking lever 12 the inner end of which is engaged with the upper side of the valve casing between two bracing lugs 13 formed on said side of the casing. The inner end of the lever 12 is rmly secured to the casing between the lugs by a screw 14e as shown. By arranging the inner end of the lever between the lugs 13 the lever will be firmly held against lateral or turning movement so that the tooth on the outer end of the lever when engaged with the notches 10 in the cap 9 will securely hold said cap against turning in either direction.

In the opposite end of the valve casing from that engaged by the cap 9 is formed a threaded passage 15 with which is engaged a plug adjusting screw 16 having a squared outer end adapted to be engaged by a wrench whereby the screw may be turned inwardly or outwardly into engagement with the adjacent end of the plug thereby providing for the adjustment Vof the plug from this end of the casing as well as from the opposite end where the adjustment is obtained through the cap as herein described. Onthe adjusting screw 16 is arranged a locking nut 17 whereby the screw 16 is securely locked in its adjusted position.

By constructing the valve as herein shown and described it will be readily seen that should the end of the casing Containing the adjusting screw 16 be broken off that the plug may still be adjusted by the cap 9 and any leakage of the valve thus prevented and that when the plug becomes worn that the same may be quickly and easily adjusted and kept in fluid tight engagement with its seat. l

A plug constructed in accordance with my invention may be used in connection with any fluid conducting pipes but is especially adapted for use in connection with high pressure pipe lines from oil Wells and the like where a broken valve would result in a great loss.

From the foregoing description taken in connection with the accompanying drawings, the construction and operation of the invention will be readily understood with` out requiring a more extended explanation. Various changes in the form7 proportion and the minor details of construction may` be resorted to without departing from the principle or sacrificing any of the advantages of the invention as defined in the appended claim.

HavingV thus described my invention, what I claim is:

In a valve of the character described, a casing having formed therein a tapered 'valve seat, a tapered plug valve engaged with said seat, a cap having a screw threaded engagement with one end of said casing, and having an operative engagement with the adjacent end of the valve plug, said cap having formed in its outer side an annular series of radial notches, embracing-lugs on the casing a spring locking lever securedY to the casing, between said lugs a tooth formed on the outer end of said lever and adapted to be engaged in any one of the notches in said cap whereby the latter is 'secured in any adjusted position, an adjusting screw arranged in the opposite end of the casing and engaging the adjacent end of the plug and a locking nut arranged on said screw.

In testimony whereof I have hereunto set my hand in presence of two subscribing witnesses.

THOMAS It. STANLEY.

Witnesses EUGENE W. BURBANK, CHARLES VITMER.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C.

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