USRE15678E - Un it e d s t a - Google Patents

Description

DEVICE FOR DRAINING WATR FRCM OIL TANKS original Filed April 24,' 1922 To fall it v 4 Beit knovvn"that\I,;WrLL1AM THUR, a subject of the King of England',-re-l4 Reim@ Aug; 21, 41,923..

. mgeiinrrlnuafor rfcrlkigini ne. 1,442,677, dated Januaryfisg'lsz, .serial N.i:556;s5o', nledfaprn' 24, 1922. AAppliquees lfor reissue'fnled'nmeflnz, 1923;:v scrinium-644,861; v: i

siding at Angeles,.in the county :of Los Angeles, :State: of California,- f have invented a new and` useful Device .for VDraining Wa-` "i `terfrom Oil` Tanks, of which the :following is a specification.`

l Allfly invention relates to theart of produol f nrt, r:the i crude-petroleum `is commonly pumped or allowedto flow into'large metal ing' and transporting petroleum oil.y In this `j `tanksin vwhichityis"eauged and from which itis pumped/'into a pipeslinelandr transport'- ed tothe 'refinery or 'point ofrailvshipment. f Y Intran'sporting'it through pipelines, it is having a lange12 near the bottom and into necessary in the'c'ase of'long linesto locate pumping stationsfat intervals at which 'other containers are'placed in Whichthe oilis temto settle in the bottom'oftlie containers from` `which it 'is desirable to dran/:fit lfrom time to time so `as to remove` it fromvtheoilbefore the samegisused or li'efined.` 4

. caningthrough this valve; Whichjoil` must f beilcaughtin lanI auxiliai'y. settling" tankv and pumped back into the tank. -gfThere is also a liability 'that f the employee will forget HUto producing' `trouble rlaterin the use orv re-ln-` `ingrof'1;l1eoi1-f4 I :y 4 1 #Y It an object ofmy invention to provide a udevice which *may be attached Ito' any tank ed that water will-drain therethrough", and.

vat the Sametime', soconst'ructed-that there is no danger fof any appreciable quantity of Jl. Miei,

vporarily stored. A great deal of the'foill con' `do not; wislritolimitedthereto,A but have therethrough-1;Ibelieve i' device depends for its Lactionuponl the dif-v constructed `and vused such adevice `similar i .to that described hereinl over considerable V.periods and know forth hereinafter.` l f i 1; ,l

lRefe 'ng-*tothe drawing, which is for illustrativefpurposes only,

that it operates `asset 1 isa.diagra-mmatievievvshowing a section through one vform vof my? invention.v :1 'Figi'. 2isxa section on av plane represented by the-line 242 of. Fig. 1'.r

.Referring to `thedrawing,A 11 a Whicha water drawoff pipe 13 isconnected.

'Theother end of thelpipe 13 lis th'readed in laaoasingr `2O lhaving a tighticover- 21.1 The casingris 'provided with abore 22Which `is raccurately turned or 'ground to `form a. cyy y l'indrical cavity of substantially uniform. di-

ameter :Sliding in thiscavityii's a plunger f30j. this plungerbeing turned or. ground on vits outer surface'l to form a vcylinder of subi' stantiallvfuniform' external' diameter.'l Set :in this plunger are a plurality ofpluizs or pins 32 which' are turned or .ground-at their outer'end to'liein a'single cylindrical plane which is parallel to the outer plane 31 of the nlu'nger 30 and substantially equal to thev bore' 22. Thev purposeof these pins is-to holdithe'jplunger 30v centrally' at all times with .af vsmall but ldefinite clearance* 'beance at all times. 'rings 35V and 36, ground `to "the samediameter as: the bore 22, are

formed 'in'the casing.,l these'lringsk having;` draw oil' the Water so that it isjp'umpedinto fthelline becoming emulsilied with l'oil and;

through; The plungerBO may be adjustedl "tween the Aoutersurfzel of the plunger and the inneri` surface22 of 'th'e casing" 20 and for v the purpose"l of insuring` this clearup and down by means of anl` adjusting n screw 40 having a head 41`tting'in afsocket 42 inthe plunger 30, the screw 40: being' threaded in a boss 45 in the cover 21 and being' operated' by a'hand Wheel :46. Fluid looy is taken outfrom the 'space below the plun- A f `ger 30hy 4meane'of an' outlet pipe 47.

The'method of operation is as follows:r Liquid, being admitted to the space inside the casing 'V and above the plunger 30 through the p'rpe-13-, tends tol pass'through Y the narrow annular space between the `plun-.

ger and the inner bore 22 Vof the casing 20. Thisliquid isunder somerpressuredue vto the head of oil and waterin thegtank 11', Y and it is necessary to adjust the 'posltlon of 'the plunger 30 vertically tosuit v.thechar-v acter of the oil in thetanlrand theconditionsV under :the average temperature* and*V pressure. 1 It will be evident that theannular :length or said opening.

opening is of uniform area regardless of the position of the plunger 0"vertically;V but that the length of thisv annular 'opening can be readily adjusted by moving the plunger.

30 up' or down in the casing 20. Ihe thickness of the annular opening .isglnade very small in some cases', being only one thousandth of an inch,l Due, `asrI think, to the vdifference in` viscosity betweenoil and ywa-V ter, I find that with the plungery 30 prop'- erly 'adjusted thatit is possible to* drain water at a slow rate through the-'pipevv 113, the flowv of liquid i stopping whenever oil enters the* interior offthe ca'sing 20, the heavier oil refusing-topassrthroufgh the eX'- tremely small opening'prov'ided around the plunger 30'. It is',however,'necessary Yfrom time to time to 'niove thep-lunger-SO "to its extreme upper -position and allow; water or oilE to pass therethrough for theV purpose? of flushing out any foreign -matter-'whieh Vmay collect therein.` f .f

j While-.it is perfectly possible to operate my inventionbytrial, it is also possible to calibrate it g fvor=this purpose,f:1 usea;Y plate 50 secured Vbyvabolt 51 to Ythecover and having an arbitrary scale 521 thereon. VThe hand-Wheel '46,' is providedrfwith ya fraised rim 53 which indicates Von thescalethe position of the plunger 30. -Any other convven'ient inethodof calibration may be used.

`I claim as' my invention 1. Infa` devi'c'eofthe character described, bhe combination` of; a casing; a 'plunger movable in said casing and-sosforme'd asto lea-'ve a small opening between said casing 4and said plunger; and means forse adjust- -ing said plunger in saideasing as to adjust the rictionalresistance on a body Vof fluid fflowing through-said opening?. Y

2. In-a device ofthe character described,

vthe combination of:V a casing;y a yplunger 4movable insaid casing and'so formed as to f leave as'mall opening between said'casir'igv 'and said plunger; and means foradjusting said` plunger in saidcasing to regulate -the In adevice of ,the characterrdescribied,

k'the combination of: a'casing having acylindm'ical bore therein; a plunger movable/in said casing and so formed as to leave a` small opening 'between said 4casingand said` f p1un ger; andmeans for so adjusting said plungerin said casing as to adjust the'frictional resistance on a body of fluid flowing through said-opening .y

4. Inafdevice of the. character described, the combination of: a casing having a cylindrical bore Ytherein;, a plunger movable .in saidcasing and so formedas toleave a" small opening between its exterior and the inside otsaid cylindricalborefof'said casing and said/ plunger; and means for so adjusting' said plunger in saidV casingto ,f adj ust the 'frict-ional-,fresistance on a body of fluid lowy ing through said opening.

5. Ina device of the character described, the combination" of: a casing;` a. plunger movable in said Vcasing and so formedas to 'leave a vsmall .an\ 11ularopeningv between said casing and said` plunger; and means.` for so adjustin :said plunger in's'aid casingfas to adjust t e frictionalresi'stance on a body vof fluid flowing through said opening.

. 6. In a device'Y ofthe character described, the combination or: a casing; a. plunger movable in said casingand soformed as to leave al small" annular openingA between vsaid casing and said plunger; and` means V for adi justing 'said plunger in saidcasing toregulate the'length of said opening.

' 7. Ina device ofthe character described, :the combination of tV a casing having a cylindrical bore therein; a plunger -Inovablevin said casing and s formed ask to leave a small annular.opening"v between said `casing and said" plunger; vand nieans 'for so adjusting Vsaid plunger in said casing as to adjust the A the-#combination 'of walls forming Va chamber', -fsaid Walls having an ropening therein;

.and means for delivering oil andfwater intov said* chamber, said opening being"y of such size that, when once ajwaiter Afilm has been -established therein, il will :thereafter 'be excluded therefrom.V Y

10.- In a. devicefofthe character described,

the vcombinatien -of walls: forming a feham-V 8; Infafdevice of the c aracter described, v 05 ber,'said walls having a narrowI opening therein; means forv deliveringV oil and7 water -int'o said chamber, lsaid opening beingof Vsuch dimensions 'that when once awater film has been established therein, -oi`-l- -Will thereafter 'bei excluded therefrom; and means for varying the di-lnensiosv I of said opening.

11. In a device of the vcharacter described, :literk be excluded therefrom; and means for i the combination of: Walls forming a chamvarying the length of vsaid opening. .l

ber, said -Walls having a `narrow opening yInl testimon whereof, I have hereunto set 10 therein; means for delivering oil and water my hand at os Angeles, California, ,this` 5 into `said Chamber, Saidjopenng Abeing `of 15th day of May, 1923. 7

Such dimensions that Whenonce a Water film i has been established therein,l oi1 will there- YWILLIAM J. MACARTHUR. v

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