US1471015A - Liquid sampler - Google Patents

Description

jg j [30 l9 1 AD P. W. TOMPKINS LIQUID SAMPLER Filed May 4. 1921 INVENTOR Pl/lL/P' w TO/VP/fl/VS ATTK Patented Get. 16,

PHILIP 'wf'rola'rxins; or sA n FRANCISCO, CALIFORNIA.-

v Aiahlicatioi'filed Mayan To all whomz't may concern! Be it known that LPH W; 'ToMPKIns;

1 a citizen o1"?the UnitedStates,residing at new and useful Improvements in Liquid liquidsfcontainedin storage tanks and tank San Francisco, in the county of San Franolsco andState of Cal forn a, have invented Samplers, of whiehthe following isfa speci- This invention relates to aliquid sampler.

It is'theprincipal object otthe present invention to provide. ag device by which cars may he -proportionately sainpled irre' -l speotiveo-f the shape ofthe container, and

the tank and in tratiotoithelshape of The present inti ates eoiit einplates". the

thus insuring thata representative I core may be made"accurately showing the condition, of the liquid throughoutthedepth 01 the container.

I use of a container adaptedto be loweredjto and which may beautomatically closed and {seat aroundthe marginal edgej thereof. ,AJT

I whichzl I elevation showing one form ofthe present 'vation showing a second form ofgthe, inven 7 :Referringmore. particularly to the idra w tings, l0 indicatesia tubular container; ,The

lower end of this eontainerlis pr vided with I fa ring 11, externallyithreaded to receive :a w T any desired depth within a body '05": liquid,

withdrawn from. the} liquid at a desired depth, entrapping a volume: of liquid at the exact depth desired- J T The invention; is'illustrated way of example in the, accompanying. drawings," in

1 Figure 1 is av view in vertical seotion ajnd invention. 1 V .t o v Fig; 2 1s a V16W -1Il vertical sect on and eletion: i

xg'alve ca-p 112 his eapgig formed withlja 7 yv l v ne lv m be xg l rmlly rest-shy g vi y upo th Sea with a stem 15 iextendin g L lt'he vease-1O. A pair of guide spiders 1 6 are se .1 r a ro s thebias l iQ Qli se ve to; cn tralize the stem leasethe jva'l ve member;

d is} fitted", ardly within vexed back portion which will assume theposition indicated by dotted lines when 'the valve is raised. This will 'fo'rm an'a-nnular jth'roat 17 betweenthe back ofthevalve',and; :the casing-10. Thearea of this throat is computed to accurately agree with the 'area' of the opening 13,;th'us making it possible v 1921. seria no. 466,833.

the casing 10; through the opening 13; The

' forliquid to freely pass around the valve 'niember at the same rate that-it flows into will insure that the volume of liquidflowing through. the container" will be identical in consistency with liquid'u'pon'the outside of theoon tainer at'the same level.

; The upper ends of the casing 10 is fnon mally opened vand is fitted with a trap vvalve 18,. This member is in the formfiof a flat plate hinged ,to' one side of the casing on: a

pin 19 carried by ,aphinge leaf 20f The Weight of; this valve is suchthat downf iWZtId movement of thesarnplerthrough a liquid will lift the-valve While bringing the sainplerto rest or raising/rho samewill in} stantly close this member and partially des termine the sainple of liquid obtainedfthe upward movement ofthe trapbeinglimited extending, fins 22 are seu} eured,farouncl the outer circumference of the casing" 10. These 'fins tend to' hold the i I, Long'itudinally 'sampler in a vertically aligned position as i it travels through the liguid. TWO Of; the fins are formed with perforations 28 receiving; theeyes of a bail wire 29. This wire is looped at its center to for n aneye 30 reoeivingasuitable cord as shown in the'drawi insgsl The cord of course may be noted or otherwise marked, so u that the depth to I whichv the sampler is lowered veniently determined;

i Reference'being had to 2 of thedrawsings; it will be seenthat theeasin'g l lOis. straightthroughout its lengthjanddoes not I I v jflare at thebott'o nas'shown inFiQ/l. The; central; pening 1-8 halvinga tapered valve,

lower end-of-this casing is'thre'adedto re-ft ee'ive the vailvecap' 12 having a central open ister withlthe valve seat'lof the ,openingll'il.

ofthe'opening13 and the sectional area of the annular passageway 34'agree so that the ingi13; l Valve ineinber l; is adapted to regxj 5 1 I 7 lowering ofthe'i sampler will be accompanied tion shownin 1, the sampler is secured viously .deseribed, the directing the bail 29.

i111 operationof'the form of the inven to a cord or rod and'lowered to a 'desired level. ,As the device descends through the 7 liquid the valvejmemberf 14 will raise from its seat to a position-determined by the lowerrnost spider .16 and thet-rap valve 18 will 7 swing to its uppermost position, 7 'When a desired level has bee'n reached the sampler.

is brought to rest. At such a time the valve member 14 will settle by gravity and the weight of thetrap' valve 18' will'caulseit to close. Substantially the same ,actien takes place in ,the operation of the forrnof the in; Vention shown in Fig. 2, upward movement of the valve structure being limited by an inwardly extending flange at the top of' the casing/10; Whena co re is to be made represe ng the @h eet O mk em e "'te bottom and consequently in unequal pro- 1 sary to pro ure a sample in direct ratio to the shapingof the tank. For example 'the portions,the sampler is usedto take as mueh material from anys'jection of the tank inde pendently of any other section as isneces- 35 number of 10 inch samples for practical representation of the contentsof ah78ineh standard 8,000 gallon tank car is as follows:

i 7 i I Samplers 3 1 full. 1 a 211d 10 1 3rd; 10'.' l ;i 2 4th 10" r2 5th 10" 2: ,7 6th 10"; e;; 2.

Topportion 1 v if I 113"; -5: 7 Q i Where large storagetanksarejiiivolvedlthe use of[this fdevicefenablesia sample to be. j t ajkeli at various positions inthetank', as for u iristanceiinjthe different 1corners', forf a sam- '55 ple may'be -takenrdirectly from thebottbin :Oiiithe; tank-to; determinelthe depth; of the 1 settlings withoutiintei'fering with thesuper- '--;sewe u e:: 1 Y

c It will thus be seen that the device here disclosed, while decidedly simple in con struction and operation, insures that the contents of a liquid container may be accu rately determined without unduly agitating theliquid, while accurately withdrawing liquid from a desired depth in the con tainer. t I t I While I have shown the preferred form of my invention as now known to me, itwill be understoodthat various changes might be made in the combination, constructionand arrangement of. parts by those skilled in the art, without departing from the spirit of the inventionn'as claimed. i

Having thus described I claim and desire to secure by Letters Pat ent is; l

my invention, what 1. A'device of' thefch'aracter described comprising a receptacle having valve operr ings at the top 'and bottom thereof, valve members, cooperating with said openings and adapted'toopen as the receptacle is lowered through ailiquidand to simultaneously closewhen the device is 'brought te rest Within-theliquid, the unoccupied space insaid receptaclearound the lower valve when it is open being of a cross s'e'ctiojial "area equal to the cross-sectionalarea'of the bottom valve opening. V V

2. dev 'e of the character described comprising a tubular casing, "a' ner mally opened valvepermitting liquid to pass out- V wardl from the top of the easing, valve means in the bottom of the leasing normally opened to permitfliquid to' flaw into the easing Qiiivo'lume such as tofca'u'se theliquid within the casing to stand at the same level with the liquid at the outside "of the casing,

andineans-wherebyhoth or-the valves will be closed when the casing comesto rest wlthin ajliquid or i's elevated therefrom.

, 1 84A device of thejcharacter "described compris ng a tubularcasing, a'bail coni'ie'cted with the top'thereof and auaptedtesu pend the same in a.verticall-y aligned post; 7

tion, ahinge valvejatthe top of said cafs- 'ing adapted to open 'as thicasing is lowered fin al liquid, agravit'y operated valve atthe bottom o said easing-adapted to open "as the casing. ,ij'slo'we're'd and to close when "the device comes {t'e rest, and means for insiiring that ,the volumefof liquid entrapped within the device will aceu atlyfrepresefit Y s -im i roi fBKl is

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