US2008375A - Antifreeze valve - Google Patents

Description

.My 6 1935. A. w, WHEATN 2,008,375

ANTIFREEZE VALVE Filed July lO, 1934 INVENTOR bmnz 14./ haaien f BY* 7? ATTORN EY f5 able liquid fromoilstoragei-tanks, orlfrom other v Patented July `16, 1935 UNITE-D STAT-Es PATENT OFFICE,

ANTIFREEZE VALVE Abram W. Wheaton,\Maplewood, N. J.,assignor to A. W. Wheaton Brass Works, Newark, N. J., a corporation of New Jersey l Application July j10, 1934, SerialNo. 734,462

4 Claims. (C41. 11W- 21) This inventionrelates to improvementsinanti.- freeze .,Valves; and the invention Vhas reference,

more particularly, to a novelconstruction of anti- `freeze valveior draining water or other freez- :storage or `like reservoirs containing any Hiluid from which water or other freezable liquid settles.

Oil, gasoline, and similar fluids frequently ini- .tially contain a percentage oi water admixed therewith which, when the iluid is stored inA a tank or reservoir, being of greater specific gravity than the fluid, will` settle out of the latter to the bottom ofthe tank or reservoir. The present invention haslfor its principal object to provide a novel anti-freeze `drainage Valve which, when opened, will permitthe settled water or the like to discharge therethrough from the tank or reservoir `interior under the weight vand pressure of the oil or` other fluidrcontent of the latter. With this o bj ect in View, the present invention'provides a novel `valve `structure which, when. closed, is freed from contact with the `watercontent of the Atank by the admission of oil or theV like thereintof in the vicinityl of thevalve .elementsper se, but which, when open closes ofi direct communication with the oil orlike `content ofi-the reservoir or vtank and admits only the .water Ato Ythe. valve `elements forV discharge .passage therethrough. By Vreason of this novel arrangement; and construetion, the valve mechanism is efficiently protected against` damage. by expansion of freezing water therein, and is :maintained in loperativecondition regardless `of low temperatureconditions to which it and the tank or-reservoir'may be subjected. i

Other objects of this inventonVfnotat this time more particularly enumerated,- will be understood from the following Adetailed description of the same.

An illustrative embodiment of thisinvention is shown in the accompanying drawing, lin

which: l l

Fig. 1 .is a vertical sectional viewof a portion of a storage tank equipped with the novel antifreeze drainage valve according to thisinvention,V

said valve being .shown in closedcondition; and Fig. 2 is a similar sectional view showing the valve `in open condition for discharging from the lower portion of .the tankany water there accumulated.

Similar characters `of 4reference `are employed in the -above-describedviews, .to indicate correspending parts. f

Referring now `to said-drawing, the reference character!) 4indicates aside and 6 the bottom of a storage tank-inwhchis stored, ..e..g.,-a quantity otoil l. Provided intheside 5-ofthe tank, ata

`having an internally threaded bore Il).

.to normally engage andseat itself upon the valve `seat i5, thereby closing Athe internal passages il! 4desired predetermined, distance above the tank bottom 6, is an opening `8, and secured to the. exterior of said tank side, in alignment or registration with said opening S is a flanged collar 9 The rer"- erence character` Hindicates a valve casing or barrel which is preferabiyfof cylindrical form, and which is providedat itsinner end with a tubular shank I2,preierably integral therewith. That portionof `said shank t2 which is adjacent` tothe barrel il isexternally threaded, as at i3, cto screw into the internally threaded bore it, thereby to affix said casing or barrel in operative connection and communication with the tank. Integral with the casing or barrel II, adjacent its outerend,.is'a preferably downwardly directed discharge spout vor neck lwhich may be internally `threaded to receive connection oi a dis- ,Said shank l2 is provided with aichamtered internal valve seat I5 Vat its periphery. 4The inner end portio'nfof said shank? iZ'is externally threaded, asat I6,.to receive connection therewith oiY ithehorizontal `arm of .an elbow I'l.

into'or otherwisegsuitably coupled with the downwardly directedarm oi saldelbow Vli is a downwardly, `extending intake or foot` pipe I8, which terminates in relatively closely spaced relation Ito ,the tank bottom 6. i

The reference characterl kindicatesa main Valve` member having Va conical `face 2S. adapted of the Ibarrel I I and its shank I2 against the outiloW .of fluid therethrough. Said valve member `I9 is provided with a guide portion 22 `having spaced radial .ribs 23 to slidably engage the internalsurfaces of :the shank i2, thereby to support thelvalve member i9 in axial alignment with tlflevalve seat I5 during opening and closing move- Aments of said valve member. 4Connected with said (valve member audits guide portion, and extending outwardly through the barrel and its shank,

.is a valve stem lhprovided adjacent to outer endwith a screw-threaded section 25. The outer end ofthe Vcasing or barrel is provided with an internally. threaded Vopening 25 into which is screwed1 an lend closure member Ell. Said end closure `member is provided with an internally screw-threaded bore 28 which is engaged bythe screw threadedsection 25ct said valve-stem. l Extending fromv the outer end of said closure mem- Threaded ber 21 is a gland portion 2Q upon 'which is screwed a stuing box nut 33 adapted to corinne a suitable packing 3l around the exteriorly projecting'end portion of said valve stem 24. The

external extremity of said valve stem 24 is provided with a squared end-piece 32.

The wall of said elbow I 'i is provided, at a point opposite and axially aligned with the main valve and its stem, with a secondary valve portY 33. Preferably this valve port 33 is provided by the bore of a nipple or bushing 34 which is screwed through the Aelbow wall, and at the internal end of said bore is formed a chamiered annular seat 35.

Extending axially from the main valve I9 is a secondary valve member 36,'having at its ex-V tremity a conical valve portion 3l to engage the' seat 35 of said secondary valve port 33, thereby to` close the same. Said secondary valve member 36 moves with the main'valve I9, and is so related thereto that it functions to open the secondary valve port`33 when the main valve is closed, but operates to close said secondary valve portV 33 when the main valve is open.

Engageable with the squared end-piece 32 of -the valve vstern Eil is a detachable cap 38 having a squared socket 35 at its closed end to receive said squared end-piece 32 of said stem. When the Vmain valve I9 is in normal closed position (as with a perforate lug 42 which projects from said casing or barrel II, whereby the haspl of a padlock 43 may be engaged through the aligned per- .forations of the arm and lug and locked7 thus re-v tainingthe cap against unauthorized removal from its enclosing relation to; said valve stern 24 and Vits squared end-piece 32. By this 4arrangement unauthorized actuation of the valve mecha- Y ,nism is prevented. When, however, the pad-lock 43 is removed, said cap 38 may be removed and reversed so that its squared socket may be engaged with the squared end piece 32 of the valve stem 24 (as shown in Fig. 2), and thereupon utilized as a wrench for turning the valve stem to actuate the valve mechanism.

When oil l. is stored within the tank and stands therein, any water contained in the oil, by reason of its greater specific gravity, will tend to separate from the oil and sink to the bottom portion oi the tank to form an accumulated body or mass of water i5 `at the tank bottom. When the water is thus separated and accumulated, it is idesirable to draw oi the same, and this may be done by opening the main valve I9, soi that the pressure voi the body oi oil l upon the accumulated mass of water 45 will force the latter upwardly through the foot pipe I8, past the open valve I9, and thence through the passages 2| of the casing or barrel I I and its shank l2 for discharge through the spout or neck I4. Under such water discharging conditions, the secondary valve member will occupy its closed relation to the secondary valve port 33, and consequently no oil can escape through'the latter so as to be discharged with the outflowing water. When the valveV I3 is closed, the secondary valve member 36 is retracted Vto withdraw its conical valve portion 3.1 from the seat 35 of the bushing 34, thus opening the secondary valve port 33. Under these lattergconditions oil may flow from the tank interior into the leakage and loss of the oil contents of the tank.

`Having ldescribed my invention, I claim:-

1. The combination with a tank or the like of conduit means having an intake at its lower end in communication with the tank interior adja- V cent its bottom and an outlet at its upper end disposed exterior of the tank, a main valve to open and close atwill the outlet of said conduit means, and a secondary valve means movable with said main valve and adapted to open communication between the upper interior of the conduit means and the interior of the tank substantiallyabove the bottom portion `ci the latter when said main valve is closed but adapted to close such communication when Vsaid main valve is open, and means to actuate said main and secondary valve means from the exterior of the tank.

,2. The combination with a tank or the like of conduit means having an intake at its lower end in communication with the tankinterior adjacent its bottom, said conduit means extending upwardly forV a distance within said tank and `having an outlet at its upper end disposed exterior of the tank, a main valve to open and close at will the outlet of saidconduit means, and a secondary valve meansmovable with said main valve and adapted to open communication between the upper interior ofthe conduit means and the interior of thetank substantially above the bottom portion or the latter when said main valve is closed but adapted to close such communication when said main valve is open, and means to actuate said main and secondary valve means rom` the exterior of the tank.

V3. The combination with a tank or the like of a valve `casing extending through a side wall of said tank and provided with a main valve seat Yat its inner ,end and a dischargel outlet at its exterior end portion, an elbow connected with the inner end of said casing, a foot pipeV extending downwardly rom said elbow and terminating adjacent to the tank bottom, a main valve cooperative with saidV main'valve seat and manipulatable to open or close communication between said casing and foot pipe, Vsaid elbow Va VValvecasing, extending through a side wall' of said tank and provided with a main valve seat Yat its inner end and a discharge outlet at its exterior end portion, an elbow connectedwith the inner end-of said casing, a foot pipe extending downwardly from said elbow and terminating adjacent to the tank bottom, a main valve coopera- `tive with said main valve seat and manipulatable to open or closecommunication between said cas- .ing and foot pipe, said elbow having a secondary valve port in its Wall aligned with said main Valve, and a secondary valve means movable with said main valve and adapted to cooperate with said secondaiy valve port, whereby direct communication is established between the interior of said elbowand the interior of said tank when said main valve is closed but such communication is ABRAM W. WHEATON.

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