US1769660A - Liquid-sampling device - Google Patents

Description

Ju1y1, 1936. t G, MfARON 1,769,666

i LIQUID SAMPLING DEVICE F1166 Feb. 21, 1926 N l l i q E ymfTO/,

QTTo/QNE Y Zwam July l, 1930.

G. M. ARoN LIQUID SAMPLING DEVICE Filed Feb. 21, 192sl 2 sheets-snaai 2 4 Fga 8' Patented July 1, 1930 lila-irav ff GLEN M. ARoN, OFKALHAMBRA, CALIFORNIA, AssIGNoR 'ro MORRIS B. PENDIQETON,

6 n 'or' SAN GABRIEL, CALIFORNIA n LIQUID-'SAMPLING DEVICE Y Application ledvFebruary 21, 19.28 Serial ,No..255,928.

y' `My invention relates-'to the art of sampling to Fig.,6, showing the relative parts inangw TIES PATENT ollffrlcfaf i liquid, being more particularly a device or apparatus by means of which a true and accurate sample of the liquid Contents of a tank may be taken. y j

Petroleum oils, after production, arestored in large tanks of. many thousand barrels capacity and the contents thereof sold accord-V ing to the gravity of the oil, so that it is extremely important to obtain uniform samples of the oil in the tank which will accuratelly disclose the nature'ofthe whole body of oil in the tank, and it is4 one of the principal objectsof my invention to producea sampling device ofthe character described, by means of which a uniform sample of the oil in the Y tank in a continuous vertical columnmay be taken.

i It is a further object of invention to provide means whereby a sampling device of the character described may be readily assembledv and installed on any.v of the common forms of tanks now inuse for the storage of oils and similar liquids.

Another object of my invention is to provide a devicey of the character described and vmeans of mounting the same on a tank wherefby the sampling device adjusts itself to a true vertical position in the tank.` v

Other objects and advantageswill appear Ahereinafter "fr0m` the following v description n `and accompanying drawings. Y f

, -Referring to the drawings,

which are for lillustrative purposes only, l f

Fig. 1 is a vertical sectional view of a por`A tion ofv atank, showing a Vsampling device embodying a form thereon.

Fig. 2fis 4an tion ofthe arrow 2 of Fig. 1. i

`elevational view in the `direc- Fig. v3 is an'enlarged vertical 'sectional view Y showing the upper part of my invention asl n p the Vseat is mountedupon the tankroof;

. Non line6-6 of Fig. 1.` 1 .50v

Fig. 6x11 is a sectional view corresponding 'sampling device.

of my invention mounted lar adjustment.

Fig. 7 is any enlarged sectional view along the line 7-7 of Fig. 1.

Fig. 8a is a sectional view justment.

Fig. `9v is a ,sectional view along the line 9-9 offFi'g. 8.v Y Y vReferring orejparticularly to the form of my invention shown in the accompanying drawings, 11 designates the bottom ofthe tank, 12 the side wall,l13 theroof, and 1,4 a hole inthe roofwhich isk adapted to receive `thei sampling devicejgenerally indicated at 15. Mountedl above the'mentioned openingV 14:,I provide a seat member y16`which comprises an'annularlanged base 17 adapted to surround thehole "14 and to be retained upon the roof 13 .by means such las the bolts 18. Upwardly mounted on thementioned flange 17, by means of welding or lin any otherY suitable manner, I provide a conical seat support 19 having ya. circulark seat 2O formed in the `upper `end thereof.v The seat 20 isarranged toV receive the semi-spherical bottom 21 of are, 'collar or shoulderf22g which is in threaded vengagement with an outside tube k23 of theY The 'conical seat support.

y corresponding'to Y Fig. 8,'show1ng relativeparts in angular ad- 19 is adaptedto 4be of suliicient height tofele-,

vate the seat`2(f)and collar 21 above the ftop'sf 'of the tank at a distancewhich'will permit the vuse -ofthis device upon atankroof hav- I ingy water or other liquid thereon, such as the Acommonly used liquid sealed roofs. :It will be f'understood. thatfthe semi-'sphericalseatl'w\ i portion will permit the vertical alignment of the tube'23, irrespective of the angle at which The lower end: of the tube 23 is threadedV into la fitting 211 vprovided with a screw plug"A 24' and an outlet pipe 25, which outletpipe is connected by means ofk a flexible hose or pipe 26 with va` discharge pipe 27 extending eover or lplate l30, secured-to thetank by Y means of suitable boltsl'. The Ydischarge 4of5liquid' throughj. the pipe r2'( ris controlled by-'means ofa suitable valve or cook t Rotatablym mountedfwithin the out-er "tube Y is Vanfinr'rerli` tube 40,1 such innerj` tube 40 j beingwdownwardly supportedy by the screw Y plu`g24, and "extending from the littmg-24A Y upwardly "through, the Eouter` tube extending 1;

thereabove to [receive a spool or .shievei 41 :secured in any suitable manner, such asset l screws 42, to the tube 40, andproviding means forv the reception off'a ,flexible menr'1ber, suclrV as thecable 43, which is "secured thereon by means such, as kascrew. 44 and; by means of which the innerltubermay"berotated. `The upper end of,V thefinner, tubeis elosed byy a plug 45, and the lower` end of the interior oftheyinner `tube is rendered flush with the V.bottom of the opening in `outlet tting :24, Y ,bymeans of an;V upwardly `extending 4fr ustoi Vconicalprojection24fformed upon thepIug 2,- 24,. ,.Thefoutertube 23 isprovided with a *Series ofl` llgtudinal: slots 46,l disposed tthroughout its length, such slotsbeingalter- ,in such a manner `as toprovide-,for vthe en'- K tranee of liquidintothetube throughout the "i tubefrom a point. indicated byflthe dot'and dashline Ain Fig. 1, 4to,aipointof highest` liquid jlevelA inv thewtankf substantially "just belowf thereof Lof the, tank.

` 1 1 Theis-nef mesure Ais 'imi1sf1y-gieaawith u. "a series` ofgslots48-, disposedonopposite sideswith the slotsinf the outer! tuberf The outer, *,andpinner tubes,` v23 and40respeetive`ly, are" of'zsu'chltube and arranged to correspond A provided withvent openings 49and 50 above vthe `tank ,rooffor the purpose of allowing.the

`entrance of iair through the tubes when ,theVVV valve 32 is opemtheouter tube opening 491 VL beingshown`` aseo-operating.with an open i ing 49jformed inltheicollar 22, as isbest il! ing` and'fs'lotelosingpositions, I providethe a ancl` 55,; vmounted on `the jupper f faee i yof the r Means-'erstprqvdecl for 'molinti'g de ableorjiropeg43gupongthe' tank in a manner Auch that it is conveniently 'accessible'` to;` the oper or, which; means `comprise ai pair of 7 and; `C )llQOsiteends"sample .maybedrawn'Qffthrough thevjvalve the'bottom slot 46in tube .23.` l Y e `lt Vwill beunderstood that when all ofthe of the cable 43 extend, the pulleys beingmounted on a shaft 59, supported by the legs `and 62 that engage an edge `62 of the tank top 13.73 The shaft 59 is supported against4 lateraldisplacement by means of the arm 63 which is mounted upon an'extendingear 65 by means of a bolt 66, the ear 65 being formed on `the seat support 16.` Sleeve members 6'? andl Sprevent `the inward movement of the .I

pulleys5Tand 57,.and the respective parts areV held. in relative adjustment upon the shaft 59 bylineans such Aas the nuts 69 andV 69fwhieh engage the threaded oppositegends of tliefshaft. It will be understood that 1t is. :the purpose of this pulleyconstruotion anyfunnecessary attachmentsto the tank roof, the fixed .support being from thejseat supporting member, andthelegs 6062 beingindependent of any special rofconstruction.

f In order that conveniently accessible to the operator, and, further, for the `purpose ofipreventing twisting an dfaccidental catching` on moving objects near the tank, provide a retaining pulley-V71, whicliis mountedon the side 12 .ofthe tank, neartheoutletf valve 32.by 'means such asthe arm 72, and the bolt `73.

The arm 72 I; show as being mounted iupon the liandholecover, 30 means of the rbolts 31. v Ingoperation, it is Vunderstood .thatthe inner tube is rotated tov a position in Vwhich Vthesloltsj inthe inner and outer tubesare out of register, as shown in Figs. 7% and 8?, until suehl timefasitfis desired-to take asample 'of fthe Vvliquid contents of the l tank, whereupon the innerztube is rotated through the .mediumv ofi the cableor rope, as heretofore described, so that the slots in the inner tube the cable 43 may-'alwaysbe register, as shown inli1 igs. Fand 3, it being f A understood-- fromV drawings, 'particularly Figs. 1, 8? and 9, that the .lowermost slot 75- in the'ftube- 40 registers an-aperture48 in the'tube 23 and a'slotSO-formed in the fitr ting 2,4. AThe fittingy 24 is further providedVv with an outer slot 81 which cooperates with slots throughout the tubes` are in register,

asjust ',deseribed, a Ysample receivedv in the i inner: tube is abontinuousone from thetop p' thel upper mostf slot tothe bottom ofthe lowermost slotfin the tubes,` admitting a i inner tubeisthen rotated so that `the-slots registering with the outlet pipe 25,at which point inthe operation, the inner tube concolumn'or'core ofoil intothesampler.- The tains a sample taken as justdescribed. @This 32 by opening the same into any'receptacle for receiving such sample.

With respect to the vent openings 49, 49 and 50, such openings are out of register when the slots 46 and 48 in the tubes are in register I so that when the sampler is allowed to s tand' open, that is, the slots46 and 48 in register,

l there is no leakage of gas through the sampler.

This is of great importance as gas leakage increases fire hazard and consequently should l be avoided. However, during the operation of filling the sampler some of the top slots which are above the liquid level function as. air outlets whilethe passages 49, 49' and 50 l admit air during the draining of the sample ter with the outlet pipe. rI`his is done by openp ing the valve 32, since if the mentioned accumulation of oil in the pipe were permitted to mingle with the sample, a true sample would not be received. Y

I claim as my invention :V

l. In combination with a tank, a fluid sampling device comprising tubular sample receiv-v ing means and means for suspending' said sample receiving means on the tank roof, said y suspending meansconsisting of a spherical seat mounted on the tank and a cooperating shoulder on said tubular means engaging said seat. Y

2. In combination with a tank, a iuid sampling device comprising tubular sample l receiving means and means for suspending said sample receiving means on the tank roof, and means at the lower end of said tubular means including a flexible tubular member VeX- tending through the wall ofthe tank for withdrawing fluid from the tubular means.

3. In ycombination with a tank, va fluid sampling device comprising tubular sample receiving 'means and means for suspending said sample receiving means on the tank roof, said sample receiving means consisting of an .outer stationary tube having openings therein and an inner rotatable tube having openings thereinY arranged to register with the fopenings in the-outer tube, the openings in both the inner and outer tube beingarranged l in staggered relation *withV one another and forming when the opening in'said tubes are coincident, fluid receiving passa-geswhich essaid sample receiving means on the tank roof, said-sample receiving means consisting ofk an outer stationary tube having openings therein and an inner rotatabletube having openings, therein arranged to lregister with the Y ropennigs in theouter tube, and means for ro-V tating the inner tube, said rotating means consisting of a spool on said inner tube, a

cable on said spool, and rotatable means for' supporting said cable over the.' edge of the tank.

5. For use with a tank having a roof'and a Huid sampling device suspended thereon; means for suspending said sampling device from the tank roof, said means including a vspherical seat adapted to be mounted upon said roof; and a cooperating spherically formed shoulder on said sampling device seating in said spherical seat.

6. In combination with a tank, a fluid sampling device comprising: tubular sample receiving means; means for supporting said sample receiving means in a tank; and vmeans comprising a non-rigid connection at the low` er end of said tubular means and extending through the wall of t-he tank for withdrawing iiuid'from' the tubular means.

7 In combination with a tank, a Huid I sampling device embodying: ltubular sample receiving means and means for supporting` said sample receiving means in a tank, said sample receiving means consisting of annouterf-tube having openings therein and an innertube having openings therein ,arranged vto register with the openings in the outer tube; and means including a member extend-v ing downwardly along the side of the .tank for rotating one of said tubes.

In testimony whereof, I have hereunto set i my hand at Los Angeles, California, this 15th day of February, 1928.

GLEN M. Anon.'

tab-lished communication through the tubes v throughout the entire distance between Vthe top and bottom openings.

4.y In Vcombination with a. tank, a fluid sampling device comprising tubular sample C3 receiving means and means for suspending

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