US1206065A - Displacement-pump. - Google Patents

Description

E. A. WATTS (Q l. L. DUNN.

DtSPLACEMENT PUMP.

APPLiCATlON map APR. x9, 19x5.

Patented Nov. 28, 1916.

3 suns-sue I.

a, Dump.

w E. A.IWATTS & I. L. DUNN.

DISPLACEMENT PUMP.

AFPUCATION FILED APR-19, 191s.

' 1,206,065. Patented Nov. 28, 19m.

3 SHEETS-SHEET 3.

96 QvMH/MLQ. i y

Be itplmownthat we, 'ELMIJR A. Wivr'rs aml-lnw x L. DUNN, citizens of the United States, residing at Springfiddfllarl: coi nt'y, ai icli:i\l;u iette,' Washington county, Ohio,

-i"es1- ecti= vely, have invented certain new and: .usefiil Improvements in Displacement- Pu1nps,-. of' which the following; is a spec-1* fiCll-liiOl-1{TGLEGX'GHCB being had therein to the,

EEQQODIDHDylHE drawing. This .-,in\ ex1ti( m ,i'elates punips and is-in the. nnture of ii, further'dtivelo niient of the invention ei'nbodied in'the ligation tor pntent.'filed by usMzuch 8th, e1; No.'12,7-95 on which Letters Patent 1,1,"(g579wvere granted June 20, 1916.

" The'jdisplace 'nent pinup shown and describedi-inetlmt application operatesin a manner which is entirely satisfactoryin so great-121s"to be 'toit degree objectionable.

'lhe object oithe present invention is top toviid '1 displacement pump which will elevate .(unntity of fluid to a greatheight I with i}. -1'elzi'tivelyv low air pressure To this; end itiis 2 furtherohject of the in vention; :to, provide g ctei'. i n mrhidh the-"oiL-oi other fluid will be 4 relayed, to the top of the ve It. 1's 'iilS0; -zn1 oh ect of the. invention to p i-oviden ea-ns for so controlling the admisiifcs to enable -the expansion ofthe 'bo. utilized",-.for lilting" the, fluid tlnoiigh the -lntter part of its-movement, therebyeuntemall'yreducing the amount 0t.

midi;

In. ncoitnnpunying drawings, Figure 1 t I a s de elevation .ofa, displacement pump h s ouu'ini'ent-i'on showing the same IQJfQOfiI. 01 1-11- the well;;F1g. 21s a, vertical,

sect-ioi hzljvieit off the upper portion of such B; pumppJEi-g; B is a similar view ofthe lower portion of the pump and. constitutes 'a continuntionof Fig. Fig. his a side elevation, pai'tly. in section, of the 'controL ling deyice ;-'l?ig-;, 5 is nsoctio-n'al, detail View of thez-nppel. 'endof-one of the fluid 'recepta-cles-gsho i 'iie the means for peiniitt ing the sn 'plnsiiuid; Fig. 6' is a-section'al,

det: f the. oombined. .in let and eit- 7 and S lllnstraite 1n haust' vat-lie; and Figs.

to displacement piessnl e'necessarv to lift the :1: pump of this .chzurthe [pum p and its exhaust "l to;elevg 1te a given quantity of a lever 17 i with it counterweight 20 1mg connected with a wire histmosmnnhrfima Specification of Lettezs Patent.

. 1. side eleyation, partly in section, a modified form of the invention.

' In. these drawings we embodiments of our invention and shown the szunens emhodiedin structures similar in the main fezituresto th et sho wnfn hiwe illustrated two.

next. to

-- i im in t n.. iirn'rrreos-sien nei intn, Aiin IRWIN Dim-moi? MABIETTA; onto;

Patented Nov. 28, 1am;

Api umionfi1ed'iiri11e, 1915. seriai neeeese described and clainied in the abovelmefi tioned application for patent. It ,will be Understood, however, that the iny'ention'nmy "be embodied in structuresot-vei'ionsjlcinds aiid may he utilized for pnrposes' otlier than the pumping of Oil. r

As here illustrated the pump embodying the invention is mounted in an oil well hiving the usual well casing 1 and provided at the lower-end of the casing with a pocket 2 in which the oil eccun'nilzites end from ii hich it is pumped to the snrfnce' of the,

ground. Mounted in the pocket 2 and commu'nlczit ng with ,the oil therein 155m oil neceptu-cle orcyhnder 3 having zit-"its lower oil therefrom through the port-4;. lilxtendg i'ng'into the receptacle or cylinder 3 is' aj lower end. of which discharge pipe 6,, the

the .bot-

preferably extends tea point near tel-net the oil receptacle and the upper pore.

of which extends beyond the iippetend le- 't' he; receptncle 3.

pipe; 6 en is admitted to the upper end oi the receptacle through nflmr conduit oi piped. which extends upward through the on, To discharge the oil. from the receptacle through the discharge end an oil inlet'poi-t 4: which is pifovided. with a check'vnlve-Ev to prevent the-escapeof wcll casing 1 and is provided at its upper end with a. controlling device Sjiihich may jl e of "any suitable character but" is he 'e illnstnted as of thesametype shopi'ri' and};

described in tlie'nhove'inentioned applied tum, This device. need not be l erejdescnbed.

in 'Leteil; Snlliceit to say that it comprises a casing lniving tin :iir-inlet port 10 .c'om

l nslalsq an exhaust port IQ u'ranged nt'e poiiitj remote fife-1n". said inlet port The inlet-ja-nd exhaust ports wand 12 "both com ihunicnte with a, passage 13fwhich' is conne'e d by e pipe 14 with the nppe k mi of air pipe'Y. Valves 15 and 16 the inlet nd exhaust ports; 'espectiifely an'dthese valves are control-led by'mezm's "oi .iirrns "l8 and 21"whih extends through the air pipe- 7 and ontnol is connected with which-has -m is w y exte'i lii g.

s the: latter b i provided;

and the form b iich "order to avoid t a weight 22 which is mounted within the oil receptacle 3. As the fluid rises around the weight 22 the latter is buoyed up until the counterbalance 20 is suflicient to rock the lever 17 in a direction to open the inlet port and admit air through-the pipes 14 and 7 to the cylinder, thereby forcing the oil through the discharge pipe 6. As the fluid lowers around the weight the buoyancy thereof is decreased until it is suflicient to again rock the lever against the opposing force of the counterbalance 20 to move the lever in a direction to cause the closing of the inletport 10 and the openin of the exhaust port 12. This latter part 0 the action, however, is modified in the present device, as will be hereinafter described. As has been explained .the air pressure necessary to elevate the oil from the rece tacle 3 to the. surface of the'ground in the case of wells of rent depth is excessive. In lie necessity for such 11 hi h air pressure and to enablethe oil-to lifted from deep wells with a relatively low air pressure, we have provided a relay system of oil receptacles,- eachof which is adapted to receive the oil from the next lower receptacle, thereby making it necesnary to lift the oil for comparatively short distances only at each step oftheoperation of the pump. As here shown, a second receptacle or cylinder 23 is arranged above the receptacle 3 and spaced therefrom a distance determined by the air pressure which it is desired to use. The upper end of the discharge pipe 6 communicates with this second or next higher receptacle 23. In the resent instance it extends through the ower head of the cylinder 23 and termi;

nates jum short of the upper cylinder head. This rece tacle orcylinder 23 is also providedwit a discharge pipe, 24, which commuhicates therewith near the lower end thereof and extends upward and into a third receptacle or cylinder"25 which is supportedabove the receptacle 23 and spaced therefrom a suitable distance] The cglinden25 has a discharge pipe 26 leading erefrom and .comm'unicatin either with a fourthreceptacle or oylm er, or, as in the case-of the device here illustrated, with a discharge line .27, at the top of the well.

It will be understood that. while we have shown threereceptacles or cylinders in'the present embodiment ofithehinvention this number will be determined by the distance 2 which it is necessary to elevate the fluid and by the'air'pressureavailable In: this em lmentof the invention the upper rec'eptacle, 25, is supported from the end-of the discharge line 27, which is carrieiil by a casing head 28, by meansof rods 29 and-- the next' lower receptacle 23 is. supported from the receptacle 25 by similar rods 29 likewise the lowermost receptaclet is supported from the receptacle 23 by mean! of rods 29 so that the whole mechanismis supported by the casing head 28. Inasmuch as the cylinders or 011 rece tacles are of such a size as to practically fi l the well czaing 1 the air suppl pipe 7 passes through each of the severe. cylinders. This, however, is merely a matter of convenience and is done to enable the receptacles to be made as large as practical. It will be apparent therefore, that when the air is.a mitted through the pipe 7 into the upperend of the lowermpst receptacle'3 the oil will he forced ouLof that receptacle throu h the discharge pipe 6 and into the next igher receptacle 23. Inasmpch as the receptacles are of'substantiallythe same ca'pccit' the low'ermost receptacle will be comp etel em tied into said next higher recep'tac an the air will then follow frornthis low" ermostreceptacle into said neithig er receptacle and the fluid will be discharged therefrom through the discharge pipe.24 into'the next higher receptacle 25 and, in due course, from the receptacle 25 through the discharge pipe 26 to the discharge line 27 at the top of the well. In each instance the air pressure reqiliired has only been that necessary to lift t e oil through. the distance separatin the discharging and -reoration of the device 8 in a 'tion to'main tain the exhaust port of t e valve closed. In that form of the invention shown in Figs-1 to} the lever is maintained in a po- 'sition to hold the inlet valve o as to hold the exhaust valvec osedl This n, as well is accomplished by means of a trip arm or trigger 30 which is 'arrangedto-engage the arm 18 of the lever 17 and hold the same in its uppermost position, therebypreventing the lever being moved by the float as the fluid level in thelowermostreceptacle is lowered; The trip arm 30 isgnutomatically disengaged from the arm 18 to permit the valve 8 to operate atthe desired time during the operation of the pump. To this end we have interposed in the discharge line 27 a receptacle 31 in the side wall of which the'arm 30 is pivoted and which is providedwith an o'utletfpi'pe32 of amallercnpa'city tha i the inlet pipe. The inlet 'pipecomfill munic'a't'es directly with the chamber formed within the receptacle 31 but its escapetherefrom to the outlet pipe 32is controlled-b11- a valve '33 which is here shown in the nature of a piston valve mounted for movement 1-nto"and out of a port 34. This valve is connectedat its upper end with a crank.

. heeiiiol tion d oesiiot talre as? or l. step. "In this theone already deem;

the second receptacle 41 one hundredfeet.

shali't l-lh, whi

.lIYll'lth'ill'lS of a" 1311-14 BG Ri ith-the trip arm 30.

livo iill 'y" "connected with the crank shaft iii is a rod l'lT'earryirigatjts outer-end a fioatfiiS arranged to 'rise and fall with the 'oil' 'in the chamber. The connections be tween' the crank shaft and the several parts areso regulated as to properly time the operatici'i of the trip arm 30. With-the parts' in the position shownin Figu-tl: the port 34: is closed and the inlet port of the device '8" is open so that the air is entering thefp'ump. As the'fiuid in ,the uppermost receptacle 'is discharged into the. chamber of the 'receptaclefil the float. will begin to Thefirst portion of its movement will open the outlet port 34, thus permitting the escape of the oil through the pipe 3'3 to 'the'i eceh'ing tank. Inasmuch, however, as the inlet is of greater capacity than the outl'et'tlie receptacle will continue to fill and the float 38 will continue-to rise. and will eventually more the trip arm-'30 out et 'engagement with the arm 18. thus permitting the lever 17 to be actuated'by the weight 22.

the i'rilet port of the device 8 to he'closed and the exhaust portto be opened, The Ino'vemen "f the parts is so timedthat this opera place until the oil has been either completely er to a'large measure dis; r'iliargedii'froin the pump; As'the oil-escapes. fronii'thereeeptacle 31 after the trip arm has min-ted,- the float, w ill .n oi 'e' toward its lowe'r'mdstposition and'will thus eausethe tripi'a to hearjagainst the endzof the arm p tl1e,1 e\-'er 17 and 'whedthat arm is again jele vated to admit the air tothe pump, the tri pfarm will engage beneath the same and hold-lit in its elevated position.v

In Figs? and Save have shown a slightly" i'nodifid forni of the .in'ven'tihn in which pressure isutilized to discharge the the lowermost receptacle only and qiient elevation'oi. the oil is ac d. byth e'expansion of the air. [The if the receptacles and the manner of inhuntin g' "the,sa'ine,eorrespoml to that "lv de'scl'ibeclf with the exce 'ition that acles-are spaced apart dii'l erent this beingjilue' to the decrease of ssur'e 'i'istthe oil is elevated step by form o'f' the invention, as'in,

lfl lJtKl, we have illus puz'np as i'ccinprising' three re liv way of illustratioi'i we. have 'iind-ichtedthat thelo'iverinost receptacle 40 and thenext'higher receptacle 413a re spaced :\1 )art'-'.-t'wolhuhdred feet. although in practice the two receptacles would prolmbly be spaecdapart a. much greater distance.

The th ii d receptacle is showi'i'as spaced above quantity will expand I end and} third receptacles,

tiall t thirty-three ;but again this is suliicient; to elevate the oil curved path which must and causes thefloa-t in, the t sixty-six and two-thirds feet, or a distance.

two-thirds of that which separates the sec-- 0nd and third. receptacles.

In the operation of this admitted to the lowermost cylinder 40 in a cylinder and the float is 'pern'iitted to operate to cause the closing of the air inlet valve but, hymeans hereinafter described, the exhaust valve is maintained closed, thus confining the air within the pump. The air which is now within the lowermost cylinder and in the discharge pipe of that cylinder and will force tlie'oil from the second cylinder l1: to the third cylinder and subsequently a further expansion'of this air will force the oil from the third cylinder to the discharge line. Assuming that the pu1np is operating with a one hundred pound pressure this full hundred pounds will be used for the elevation of the oil. through. the two hundred feet separating the first and second receptacles. The air pressure will. then have been reduced to s\1l J v stantially-fiity' pounds, but this .is suilicient to elevate the oil through the reduced disseparating the sec- I There is'then a further reduction of air pressure to. substanand one-thirdpounds,

tance, one hundred feet,

through the further reduced distance, sixtysiX' and two-thirds feet, separatii'ig the third receptacle from the top-of the well. "To-prevent the opening of the. exhaust port of the scribed, with a shoulder arraingcjlto engage the end of the arm 18 when the lever l'f-has been moved into aninterinediate position, which position will cause. the, closing of the inlet valve ivitl'iout causing the opening of the exhaust valve. the arln extends some projection and extendsslightly into the he followed by the end of the arm 18 controlling receptacle I-il to act as a counterweight \-'hic.h resists the doii'nu-ard 1no,v"e lnent oft-he arm 18 and-prevents the-same from striking the projection with too great force. The operatron'of the controlling devlice is so timed as to lllOl'HlllH trip arni 4st out of the path of the arm 18 when-the uppermost receptacle has discharged.

1n pun-11w of this character where 1 availalile air 'ircssure .suliicient to lift a guru};hotlyof oil through a predetermined. dlstai' cejltis obvious that an inoperative.

As hereEQ-shown; 4 distance "above the This excess or surplus oi'wiil;

punip the air is,

suflicientto completely empty that valve a \\-l1 en. .tlie inlet port of that-device beencompletely I might be had in different ways. The m0st probable Wag, however, would bethe lntrruption of t e air pressure with'one of the upper receptacles full of oil. In that form of the device shown in Figsgl 'to- 4:, for example, if the air pressureyshould-be'suddenly cut oil with'a large'su plyof foilin the second receptacle, 23, or i ,in that form shown in Figs. 7 and 8 the exhaust valve should be opened and )ermit'the'exhaust of the air after the secon receptacle, et1-,-had filled, this intermediate receptaclewo'uld re- 7 main-filled until the operation was resumed.

As'suchan interruption of pressure would probably be due to an accident orto a shut 'down of the machinery for some cause the 7 interfere withthe ordinary operation'pf the pump. In the present instance, we have provided. the upper. cylinderhead of each of the upper receptacles with arelief ort, '46 whichis formed by a pipe 47 exten ing through .thecylinder head, qipported. thereby and extending into the receptacle Isome dlstance below the top thereof.

. .Secured' to the lower end of the piped? I is a block 48 having two or more-ports communicating with 'tlie' end of the piped? and extending upwardly throiigh the top of the. block 48. Thesefports -4;9 permit thef oil 1n :the receptacle to escape'thr 46 and fiowlbackinto.thegirell henajsur plus of-oil enters the receptacle; lt is ne'c'es sary, ho vever, to prevent ra e -tapestries: of the Oil or air through-theporti-Elfi during the normal operation of tli'edevie'e and'als'o 'to provide for the eseapejjo'f theair which may be contained inthe receptacle or m the discharge pipe-leading from the'lower receptacle" into the'same.'-

:When. the lower receptacle is being discharged into the upper receptacle beiore the latter has been -emptied,- under these circumstances, there is usually more-' or less ail-in thefltopof the-receptacle and the discharge pipe contains airf welhare, there fore; prorided in the upper end cif'the'ifecep- "'tacle an. air port 5 01ead ing into; 't he""dis -v charge pipe 251- of that receptacle, T

ceptncle through ashallow .recess' larid-islike "alve 52 which is of a diameter consid-, erably greaterthan the diameter oi the re ifpper part; of "the f "ingglbrwliiehiisfiiot ain'tight h his p'or't Thegtper non of, the, communicates with the. interiorpfithej ree and: 'itagvijr'ill-b'; appare adapted tobe closed by means .of adislc.

oincollapsing and this'e-fio'at" cess 5 1. Mounted' on theie a Host .1

is connected with the valve-member 5Tb} means of'a'spring" 54. {Under normal condb tions the positionsof the parts grill-be that shown in .Fig; 5. and the lowei'r-end of the sleeve53, which is secured to the float, will close .thep'orts 49. When;- however, 611 cm;

ters thereceptz'i'cle it rvillfirst forceoilt the 1 air contained in ,t. e 1 pperpart. of the re- ;relief port and ceptacle' through the {a will then lift the heat ,53 ,gwhicl\"serree to open thqEortSFlS toq-perniitvthe flow. .of oil through't fese ports and. the port 46 and to close tl'ifewalt'e 5 2170 prevent f tlie further escape: of ai'rrv The-oil will continue toesrap w y *th ol s l' h P t 46 Jln iI- Q later-h been redu ed to such ane'xtent that the air" pressure will force it through thedis; charge pipe -When air againenters the receptacletlir gg the inlet i the next lcwerrecep e 'the o' evel will be loweredj and the not will move downward and close the orts' 49;iherebyi preventing the escapeofair 'througlfthese portgibut,

the alve 52 r'cj'ill remain th'at portion-threof ..yvhichisexpoqedgto the air' pressure in the-'receptacleris much in area tha'n' 'the giortion which." is

the pressure o it-hieflelifrert 0 duringthe normal. operationvof the; pump the levehofthe-oil-inthe receptacle rises fir 49 this/results" in the of a sinlllfqua'nthe discharging operation. FAssooiilao the i 19 in' this war-we ld e' oap re iable'diiference'inthe ca i cityof the amp.

I fiil1b'iinderstood-,;9 mum, that the "normal operation of the pump the air pressureholdsfltliegyhlvefl c10805 -"thitftlie air pressure 'is not reIieredIt hrOughQtheP r t 50. 1:whiifthi-exh ust .gva'lye. tofthe j lower-3,. 1 y chamber-jopensthe'preseiire again t the Ive-1;]

52 is relieved allowingthe s' ame to; drop so v in pipes-wit rvillbe noted thattheireliefportg 4:

ceptacl'e.flThis' id-desirable 1n animus u ear ngf f he d he eefi mp nto.t mit eseheret e illbe to oin understood fromth rided' I a displaeementfj'piiiiip by means of which oil z'or other lluids may be lifted step by step to. a. great height, th s 'acgcom de e ipt i '1 we: hav v .Pw'

, further, that the pump is of a very simple character, is-wholly automatic in its operation'. and is provided with means to prevent itliecoming inopcrativehecause of an overload. i

While we have shown'zand described two embodimentsof our invention it will be un- -.derstood that'thishas -been.chosenfor thepurposes of illustration only and that we do not desire to be limited to the details of Com structibn shown.and descrihed, for ob yjous modifications will oc'eur toa person sliilled in the art-. l f

Having thus fully described our. invention, what we' laiiii as new and desire to secure by Lett'ers Patent, is

{ranged apart, the lowermost receptacle communicat- 1. A mechanism for elevating fluids comprisinga. plurality vof closed receptacles arone above the other and spaced ingnvith a source offiiiid supply, a conduit, leading from the lower portion of each lower receptacle to the upper portion of the next-higher receptacle, and: means for ad initting air under pressure to the upper perfition of saidlowermost receptacle, whereby the air will first dischargethe fluid from,

said lowermostreceptacle through; one of said conduits to said next higher receptacle fluid through said discharge the fluid therefrom. 4

' 2. A mechanism for elevating fl'iiids com prising a plurality oi receptacles-arrange one above the other lowermost receptacle communicating-math a source offluid supply, a pipe connecting ea cli adj acentreceptaele, I whereby flurc'l' can be elevated from a lower to a higher receptacle, means for admitting air. un'd er pressure to said lower receptacle to elevate said "fluid to the next-receptacle,said pipes being unobstructed to allow thegcompre'ssed air inthe lowermost receptacle to follow the fluid-through the pipetoelevate the same a from the next receptacle to the one above.

charged flOIliSZl-lll line for controlling i 3. ln: a mechanism for elevating fluids, a receptacle, a discharge line lead ng from saidreceptacle, means for admitting com-' pressed ai vto said receptacle, means com I trolled by the rise-of fluid in said receptacle for admitting compressed air thereto, and means located in said discharge line and operable by the. flu-id when it has-been dis receptacle and discharge the shutting ofi of the air to said receptacle-'- 4 In a. system fo'r raising 'fitilClS, a plurality of'rece'ptacles, one above the other aiid'sp'acerl apart, portions connecting receptacles and so arranged that the'fiuid may he raised step by step through the system by the iollo'wiiig action of compressed air through the connecting: portions and the the same off when the fluid has been d-rangecl one abovethe other andand spaced apart. the:

.tonriecting each adj acentreceptacle" wherb higher. receptacle, means for ddmitti' under pressure to said lowermost re receptacles, means for admitting compressed air to the lowermost receptacle, and means controlling said air-admitting means toi'shut charged through the system.

' 5; Ina system for raisingifluida aplurality ot receptacles arranged dne al'io e'theother, each lower receptacle having-portions communicating with the next upper"receptacle whereby. fluid may be discharged step by step through the system by the following action of air through the communiea'tiiig portions from; the lowermost recept ve means for admitting and cXhau'st'ihgTa and from the lowermost 're@@puwie;=-

g means for controlling the exhaustier said lowermost receptacle when thefliiid been discharged from the system? 6. In a system for raisi n fiuids,afp'1-i1- rality of receptacles arranged oneabo ethe 35 other, each lower receptacle haviiig portioiis communicating with the next upper"i eteptacle whereby fluid may 'be; disohargedjst'ep liy step ,through'the system by tl'ie1f'cill6wing 'action'of air through the 'cOiiiiiiimicat 9o ing portions from the lowermost receptacle, means for admit-ting and'exhaustin'gair to and from the lowermostreceptacle,J'ineaiis- Controlling the exhaust for. "lower- ;receptacl.e when the fluid has been dis{ eliiiged romthe system, and" 'yalve-"eoi'it'rdlled exhausts for .the upper receptacles. '7: an a mechanism for elevating" flii'ids compris ng a plurality of receptacles-"ar- 'apart,-the lowermost receptaclecoinmiiiii ing with a source-of fluid sup iy, 2n;pie. E5

fi'u-id can be elevated, from 'a lower to. elevate said fluid" the next receptliele, said pipes bein'g-.' unobstructed to" a ll m'v tl ieJv compressed air in the 'lowennost'ar'eoeptacle to follow the fluid through thep'ipeto site vate, the same from thewnext receptacle the onesabo veymeans' for admitting pressed air to said lowermost receptacle, valve controlledexhaustsin each-receptacld 1 8/ In a mechanism for eleyati igfluids" plurality of receptacles arranged one" the other and of such capacity tl'ia upper receptacle can receive substa" ially. theentire discharge offl'uid from-the most receptacle, a conduit leading from-"t lower-portionkpf'eachilower reoe'pttic a t w upper portif of the'ne'xt higher fi' 'e'c p means for p itting-Qlairjun erflpress the lowermost receptacle whereby'E' the-iiir will first discharge: the fluid from she la-wee 253? lowermostreoepta'cle, a'device to cause l the adm oeptacle and the exhaust of the air -there- .which is being oration of sai the 4 with-a of fl'ui receptacle communicating with the next o weight. I 10. A mechanism for elevating fluids co n p a plurality of closed receptacles arr i gfi one above the other and spaced apart, g the lowermost receptacle communicating. with a source of fluid supply and each up-'- per receptacle communicating with the next ower receptacle, an air conduit leading-to said lowermost reee taclo, .av device. controlled by the fall of uid in said-lowermost receptacle to interrupt'the flow of -air throu h said conduit to said lowermost receptacie, and means controlled by-the dia charge of the fluid-from the uppermost receptacle to control the exhaust of the air.

11. A 'nechanhm for elevating fluids comprisi a, plurality of closed receptacles ar rangs one hove the other and spaced apart. -love recegtacle communicating supply and each up- We! reoeptaclqan air conduit leading to imion of 'airfto said lowermost refronn'a weightmounted in said lowermost .rece'ptacle and operatively gconnected with lower receptacle,

' said device to control the operatioiii'thereof, and means controlled by the discharge of the fluid from the uppermost receptacle to control tlie'oper'ation of said weight to cause the air to be exhausted from said lowermoat receptacle;

12. A mechanism for elevating fluids comprisi a plurality of closed receptacles arran' one above the other and spaced apart,

the lowermost receptacle communicating 'with a source of fluid supply and each upper l receptacle communicating with the next an air conduit leading to raid lowermost receptacle, a device 'tocause 'the'admission of air'to-seid lowermost neceptacle and the exhaustof the air there from, means controlled by the fluid in said lowermost receptacle to cause the operation of said device,-a detent to prevent thesoperation of said device, and. means controlled by the discharge of the fluid from the upcle to actuate said detentto pern ost rece release said evice and permitcit tooperate- A mechanism for elevating fluids coinprim ran one aboye the other and spaced apart,

' said lowermost rece rece tacle, a'devioe to in- 'lower ndet reoe tacle a plurality of closed receptaclesara the lower-moi e, communicating with atohrce of flui supply and each upr receptacle with the next ower receptacle, an air conduit leading to ptacle inlet and exhaust valves connected with said conduit, an actuating device for saidcolnbined inlet and exhaust valves, a weight-mounted in said and connected with said actuating evioa' to control the move ment thereof, a 'dete'nt, and a device actut y' a rfli ild a from p to actuate (latent to e ease Raid-actuating device. j

g 14, A tor elevating fluids norm '1' 'a' plurality of closed reeeptaelea ar- I abovethe other and apaoed'apart,

at idiot-meet receptacle communicating with a-aouree-of'flui supply and each upper receptacle oommunicatl with the next ower receptacle, an air conduit communicat ing with said lowermost receptacle, a discharge line communicating with and adapted to receive the fluid from the uppermost receptacle, means controlledby the rise and fall of the fluid in said lowermoet receptacle to connect said air conduit with a source of supply for air under pressure or with an exhaust port, a'fluid-moeptacle interposed in said diacha controlled by the fluid in said receptacle to preventthe operation of said first-mentioned,

means to connectsaid air conduit with said exhaust 15, A mechanism for ntviun fluids mreceptacles araplurality of one above the other and spaced pris rang: apart',.the lowermost rece cating -with a source of flui supply and each upper receptacle communicating with the ,next lower receptacle, an fair conduit com municating-with bald lowermost rece lo, a discharge line oommunicatingwrrit and adapted to receive the fluid from the uppermost receptacle, means controlled by the rise and fall of the fluid in said lowermost receptacle to connect said air conduit with cle communia .source of supply for air under pressure or" with an exhaust port, a fluid receptacleinterposed in said discharge line, and meana con olled by the fluid in said 116 receptacle to prevent the operation of saidfirat-mentioned:

means to interrupt theponnection but said air conduit and aid source of air-sup:

P a c, c 16, A mechanian for elevating fluids comone aboveflie other and v prisin a plurality of rang the lowermost le communicating with a source of fluid supply and eaehupr reeeptaele'ooinmunicatmg with the next ower'reeeptacle, an air conduit communi-' eating with said lowermost clegj'a div" charge line communicating w and;

ed to receive the fluid from concluit with a source of supply for air v under pressure or with an exhaust port,.and

.prising a plurali a comprising a r'no'v' bl l, able member of se 40 comprising a movable member,-a fluid recep-- tacle interposed 1n said dischargcllne to re. celvet the 01l passing through the same, a

valve to control the escepeof the fluid from I said receptacle, a float connected withsaid valve to operate the same,'a detent to engage thehnovable member of sai'rl'first-mentio ned means; an'cle connection between said detent and said float to cause said cletent to be actuated to release said movable member and permit the operation of said first incrit-ionedmeans. r v

17. A mechanism for elevating fluids comprising a plurality of closed receptaclesan; ranged one above the other and spacedaperhy recp cle,jan(l means t6" cause any surplus h' imay bra-delivered to said next" the lowermost receptacle coinmunic'atlng with a source of fluid supply and eech'upperi receptacle communicating. avithy-the-=-next= lower recepf: role ":11 air fconduit'coxnrnuni eating. Wltll said lowermostreceptecle a d1scharge line commumcatmg'jvlth; 31nd adaptg ed to receivethe fluid'ffrom tlieuppermost saidlowerrr'ilast recept 'leitpconnebt said air conduit with asource der pressure or with,

ceptacle interpose V to; receive the flu;

Sal-111e, said'recepta than its inletyei let, a detent' arra insai'd' iepe cacleg md I between 'seidfioat nd d'etent,- respective-l 18f. A; mechanism H ranged one 8.5.0 the" lowe'rmo's with asour ce'of'fl receptacle, Ico r'nm'uni ati'n' ing with said lowermo I.- receptacl'e; inlet-and exhaust valvesito-con tent arrangedto engage said u mou'nt'e'd in said lowermost troftl l e flow 'of airto and from seid'a ir conduit an; actuating lever to causejtheoperatio'n of'seid velves,a;rms extenclmg f101}1 the opposite sides of said lever, a'counterweight connected 'With. one of; siucl armsg a -welght aole and connected with the other of ii -swig 51mm pressure re enavale Qcejitaclecommunicating \vi'thth'e next '1' receptacle; means for {admitting'einpn I, 4 I ;receptacle, -a' ;clis-'y charge llne comniunicetijng; with and adapt ed to receivefthejfiuid from the uppermost;

fluid r'eliefi port without] open: (1 v relief port aft'entlie. sui'pl I ;-ll

.' range 116w of fluid through the same 'andn iio iit mount'ed in said receptacle und operatiye y tQ-el'evate the fluid-from said'lmvermostre; I ceptacle. to the next higher receptacle and .for admitting air' from said lowerzncst rem h-01c to said next higher receptacle ,to gdi sclharge the fluid from said next higher ptaclej'o be discharged at thetop me a-co lowerrn eca se ommun cating 'sq l fcj. i; ed- 3 m): 5 e h upper-re i- 'ceptaol" communicatingwlth the next lower recept'a ole-5 m an pressure; to; said" jouerhxostireceptai'cle to Yate fitheyfiuid froinjsaid lowermost taclefi tl1i "he i "t- 'hi'g11er-;receptacle a admitting air Efrem Seid lowermos i'e of receptacles arr'gin'gecl. the otli e and epacecl; apart; the

my. ofreeiiptacles otherand fsjpacede1 r' t he ceptac e.communicating" 1 tl ta-ole to saidflnext hi ghenreceptacle t d1 I: w

charge the fluid-from said next big cepta'clei d HEX-l1 higher recepta l zh v ng an air relic-i portend, a" fluid reliefiporti-f' and a'fl'oa't to fcloseg said air relief ort'an open said" fluid rel iiefinort and v to" c ose said;

e said: cirr s pri'sin- 'apluralit'y' of closed-g-flceptaclestare i one above-the other fund spaced apart, the lowermost receptacle communicating with a source of fluid supply, a coni duit leading from the lower portion of each 'said lower receptacle to the upper portion of the nexthigher receptacle, meansfor admitting air under pressure to the up er rtion of said lowermost receptacle, wliere ir the air will first-discharge the fluid from said lowermost receptacle throughlsaid conduit to next higherreceptacle and will then follow thefluid into said next higheriri'ieptacle and discharge the fluid therefrom; an

' -air relief port leading from-"the upper end of said next higher-receptacle to the discharge pipeof that riceptacle a fluid-relief port comprislng a tube extending into the upper end of said receptacle and providodat its lower end with a 'block l aving ports commu- Q nicating therewith, acfloat mounted on said .the same from said receptacle, a device comprisin means controlled. by the rise and fall 0 fluid in said receptacle for controlling said valve-controlled means, a discharge line leading from said receptacle,

' means to render said device inoperative. as

open the exhaust, and means controlled-by the fluid elevated to control the means forv rendering said device inoperative. e

24. In a mechanism for elevating fluids,

, a receptacle communicating with a source of fluid supply, an air conduit leading to said receptacle, a device to cause theadmismg from the upperend of said receptacle, a

sion of air to said receptacle and the exhaust of air therefrom, a discharge line from-said receptacle, means controlled by the fluid in said receptacle to cause the operation of said device, a. detentto preventt 1e operation of said device, and means controlled bythe discharge of fluid through said discharge line to actuate said detent to release said device and permit it to operate. p

25. In a-mechanism for elevating fluids, a

' plurality of receptacle's,'e conduit leading from the lower portion of each lower recep tacle to the upper portion of thelnext higher receptacle whereby the fluid may be ele-' vated step by step through said conduits by 'air following the same therethrough, means for admitting compressed air to the lonermost receptacle, automatic means for con trolling the admission of-compressed air thereto, and valve controlled exhaust-s mounted in each receptacle.

receptacles for allowing therefrom: and s'urplu binedair inlet and'exhaust communicating with the lowermost receptacle, means controlled by the rise and fall of fluid in this receptacle for controlling the admission of compressed air and the exhaust, valve-controlled exhausts in each of the upper receptacles, and means for delaying the operation of the exhaust in said lowermost receptacle until the fluid hasibeen elevated through the,

xmchlmism:

27.' In a' mechanism for elevating fluids,

plurality ctreceptacles, conduits connecting said receptacles, whereby the fluid may be elevated therethrough step byste by the following action of air throu h to receptacles' and conduits, means or admitting and exhausting air to and from said lowermost receptacle, and means within the-u per the exhaui 0 air Hid: 28. In ,a' device of the: character dc scribed, a receptacle adapted to 'receive a. fluid to be elevated, means forfadmitting compressed air to said receptacle, an air relief port and a fluid relief port for said'reo u said fluid relief port and to" close saidliliid relief rt without opening said air relief. port aR -l the surplus flui hasbeen discharged therefrom. Y

29; In a device of the character described, a receptacle adapted to receive fluid to be elevated, meai1s for admitting compressed air to said'roceptacle, an air re ief port leadfluid relief .port .com rising a tube extendavinga port communicating therewith, a

float mountedion said tubeand arranged to, nclose said port when in its lowermost position, itdisk like: valve arran ed above said float and adapted to close sai air relief portend; spring interposed between said floatand said air valve.

tures in presence of two witnesses;

- ELMER A. WATTS.

IRWIN L. .DUNN. Witnesses to signature of Watts:

' ALBERT K. SMI H, l rvrza H. MILLER; I Witnesses to signature of Dunn: Oa'ron G. Dunn, GERALDINE Excuses,

, ceptacle, and a float to close said sir-relief 4 port and,

It 'ing into the upper en of said receptacle and I provided, at its lower end with a' block In testimony whereof, we adix-oursigna

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