US1267093A - Drain-valve for well-pipes. - Google Patents

Description

W. N. LINDSEY. DRAIN VALVE FOR WELL PIPES. APPLICATION FILED JUNE 22. I911.

Patented May 21, 1918.

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DRAIN-VALVE F03 WELL-PIPES.

Specification of Letters Patent.

Patented. lylay 21 1918.

Application filed June 22, 1917. Serial No. 176,896.

' To all whom it may concern:

Bait known that I,--WILL1AM N. LmosEY, a c t zen of the United States, residing at Cle1ide," in'the county of Armstrong and State of Texaahave invented certain new and useful Improvements in Drain-Valves ifor" Well-Pipes, of which the following is a provide a drain -valveadapted to be positionedin the stand pipe of a-well below the surface of theground, and which may be actuated in cold weather so as tope-rmlt of "the water in the pipe being drained back saw the well, whereby danger of injury to the pumping apparatus or bursting-of the ipes. by"freezingwill be obviated.

A further and particular object of the invention is to provide a drain apparatus of the character nientionedfwhich is capable of bein' readily applied' to the .well pipe atthje esired place I and which requires no specially constructed pipe or apparatus for I its installation.

Still fnrther objects reside in providing an apparatus of the character described which is of extremely simple and inexpensive construction, which is positive in its operations, which involves comparatively few .movableparts, the various parts being so constructed and assembled as" to. minimize the opportunity for wear, breakage or de- 'inclosed by a metallic strap Indicated at 8,

ran ment of the same, which is easy of 0 era'tlon, and which w ll prove thorough y practical in use.

' With these objects in viewtogether with others which'willappearas the description roceeds, the invention resides in the novel orniation, combin ation and arrangement of parts, all as will be described more fully hereinafter; illustrated in the drawings, and

particularly pointed out in the claims.

In the drawing:

Figure 1 is a side elevation of a; portion of a conventional form of well pipe, and

illustrating the applicationof a drain valve 1 and operatingmeans constructed in accordance with the invention,

- port 9 is secured, and within which is Fig. 2 is a similar view, parts broken away, and illustrating the movablepai'ts of the valve and actuating mechanism in changed position,

Fig. 3 is an enlarged detail perspective view of the locking arm used in carrying out the invention,

'Fig. 4 is anenlar d transverse sectional view;taken substantially upon line 44 of fFig. 2, and

5 ,is a detail perspective view of the belll-crank lever which actuates the drain vave.

Referring now to the drawing, 6 indicates tire stand pi eof a well, the said pipe being made of a p urality of pipe sections. This i 'pipe,extends down into the water of the well at its lower end, and the upper end of the said pipe projects above the ground, and

" well pipes at this character are usually provided with a longitudinally reciprocable sucker rod'which carries at its lower end the pump piston. The sucker rod and plunger or piston forming no part of the invention, are not illustrated in the drawing.

The invention comprehends a valve adapted to be positioned in the stand pipe of the well below the ground surface, and which may be actuated when desired to drain the Water standing in the pipe. In carrying out the invention, the valve is arranged in a relatively short pipe sectionindicated at 7, so thatthis section may be readily interposed between the adjacent ends of any of the: inain pipe sections. The section 7 is upon which a substantially U-shaped sup- .P otd at 10 a valve stem 11. This stem 11 is bent at right angles at its lower end as shown, and carries a valve head 12 at the be equipped with a washer or gasket 14, so

as to preclude the escape of water from the pipe when the valve 1s seated. The strap member 8 also confines between itself and the member 7 a vertically disposed strap 15, .totlreupper end of which an outwardly extendin arm 16 is secured. Pivoted as at 17 to t is arm is a bell-crank lever 18, the extremities of one of the arms of which is provided with a laterally extending finger 19, which rests within a recesssed portion 20 in the outer surface of the upper end of the valve stem 11. An expansion spring 21 is interposed between the strap member 15 and the upper end of the valve stem 11, and this spring holds the valve normally closed. The valve stem and strap member 15 may if desired, be rovided with lugs whic project into the coi spring 21, so that the latter will be held in proper assembled position upon the section The actuating means for the valve is positioned preferably in a position convenient for the manipulation of an operator, and this actuating mechanism is secured to a clamp member 25 encircling and secured to the pipe 6 above the surface of the ground. This clamp member has secured to one side thereof an upwardly extending metallic plate 26, from the upper end of which an angularly and outwardly extending lockin arm 27 projects. This arm 27 is recesse as at 28 on one side, and this recessed portion is adapted to accommodate the actuating lever 29 pivoted as at 30 upon an outwardly extending car 31 carried by the clamp member 25. The locking arm 27 is so positioned with relation to the outwardly extending car 31 that lateral springing of the lever 29 is required to engage the lever within the notch 28, or to disengage the lever from the locking arm. The lever 29 is provided upon one side with an outwardly extending'stud 32, to which one end of a connectin rod or link 33 is secured, the opposite en of the said rod being secured to a stud 34 projecting outwardly from the upper arm of the bell-crank lever 18.

It will be observed, particularly with reference to Fig. 1 of the drawing, that the pivot 30 supporting the lever 29 is located in a vertical plane beyond the vertical plane of the stud 34 of the bell-crank lever 18, and therefore when the lever 29 is moved inwardly into locking engagement within the notch 28, the stud 32 will have passed beyond a dead center through the stud 32, pivot 30, and bell-crank lever stud 34. This articular arrangement constitutes an efcicnt locking means for the actuating lever as it will be necessary to overcome this dead center before the actuating lever can be moved to releasing position.

After a device of my invention has been properly installed in a well pipe, and it is desired to actuate the pump within the pipe, the lever 29 is disengaged from the locking arm 27, whereupon the spring 21 moves the valve head to seated position. When so positioned, no water can escape from the interior of the pipe. When it is desired to drain the water standing in the pipe, the lever is moved upwardly and inwardly, until locked within the notch 28 of the looking arm 27. This operation of the locking lever rocks the bell-crank 18 so that the finger 19 thereof moves inwardly, carrying with it the inner of the upper end of the valve stem 11. This movement of the valve stem 11 causes the head 12 to move away from the pipe section 7, whereupon the port or opening 13 will be uncovered, so that the water Within the pipe may drain therefrom.

It is obvious from the foregoing that I have provided an extremely simple and thoroughly eflicient means for carrying out the objects of the invention. The simplicity of the valve and controlling means therefor enables the same to be easily and positively actuated, and danger of breakage or derangement of these parts will be reduced to a minimum.

\Vhile the present is a disclosure of the preferred embodiment of the invention, it is to be understood that the invention is not limited thereto, as various changes in the minor details of construction, proportion and arrangement of parts may be resorted to if desired without departin from the spirit of the invention as defined by the appended claims.

What is claimed is:

1. The combination with a pipe, of a valve in said pi e, a spring tending normally to hold sai valve in seating position, a bell-crank lever, a finger on said lever engaged with said valve, an operating lever and a connection between said lever an said bell-crank lever whereby operations of said lever will force said valve against the tension of said spring.

2. The combination with a pipe, a bearing member on said pipe, the said pipe being provided with an opening, a valve stem pivoted in said bearing member, a head on said valve stem adapted to seat over said opening, a spring for normally holding said stem in valve closing osition, a bell-crank lever, a finger on said lever enga ed with said stem, an operating lever, an a connection between said operating lever and said bell-crank lever for moving said valve stem against the tension of said spring.

3. The combination with a pipe having an opening therein, a bearing member carried by said pipe, a valve stem pivoted in said bearing member, a head carried b one end of said stem for seating over sai opening, an arm on said pipe, a bell-crank lever pivoted upon said arm, a finger on one of the arms of said'bell-crank lever disposed in the path of travel of said valve stem, 2, In testimony whereof I aflix my signature sprin tending normally to force said stem in presence of two witnesses.

in va e closing position, a lever pivoted to WILLIAM NOAL LINDSEY. said pipe, and a link connecting said lever Witnesses:

5 with the opposite arm of said bell-crank D. F. Knomox,

lever. W. A. WARNER.

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

Washington, D. 0.

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