1,62i,683 piston 10 to i.ts ceiitr,,il position iii the cylilider 11. As previously st@itecl, oiie object of iii-,7 ii-Lvention is to provide l'oi@ cally co,, .ti.olliiag the qii@,@i@itit3r cr ipt(@-,@isity of hea'L-1 that is slipplied to tlio lie,,.ter or heater-s Nylileli t!,.@ed foi, a siii,,il-I qti,,iiitity of oil i-@, 'Ulie storige or in ,,t porti'oii o-'L' tbc,. l@)tei-,al 1)etwc-en the ia-@ik Thi-s cali b(, ac,@oiyiplisti(,('[ bv 14 ii@i the s'(-eiiii siii)pl,,' i Itic,,t to 'Llie auixilia,.@,y lie@itet- -1 z,)i, ' e ho-,ite@,@ T and coni,,ectiii,y sal(I vi,,,I@-Q the i-od 61, 15 as shoa-vii .ii Figi-,re 2. st,,--te( there is vei-y lit[le ii)o,,-eiiieiat o,@, (ii-I @,Iroi:i-li the lateral co-,.-.iiectioii ilie stoi,ao,-e tank the iiia@.ii Iiiie,, il' @,@,oi-ne speci@il coiiditioii r(,,qiiires tli@it i,,e. frot@n 20 the stoi-,tge taiik, tliei-i t' ,-e, iei,@tei,i,,id atixiliai-y AA-111 be iiiilyielial-ely tl,,rov@-n into ol)ej.,atioii tile i@iove11 Mont of the pi-,,,ton 10 ii, tlic,, tioli E', ii-id the I)OI-tioi-i o-f (,il @ii tlie, stor,,i(ye taill@ iii proximitv t(- tlic- Z,)-Tle liea'c-er i Avill be heiteci m i its SU"'e'e-ltl\T to Tl,',Cili'-,Ite flow into the ma@.i-i Iiiio. ',-he. sttpply of the heating iiiediui-ii to tl-Le @,ii)-d J is coiitrolle-,l auto,,ii,-@tleill-., tlic, il,@ove i-fitniaer the flc,,,v o--r oil fi-oi-ii tl,,e tai-ik througli the latei,4,,l coniiec-,t@(,n E/ the heati,,ag clevice-s I @tiid J to operptl\-e autom,,,,tically ap-cl the quailtil@-,,, of lieat stipplied to said devices to I)e Cqlly in approxiriil)te )rol)oi-t.!oi-i "L-o tiio rlltte of floav, of tl-ie 0;1 pas@-,i-iit@ @Lo ',@lie iii,,iin line. If the oil f-lows ii-i tl-le'opposite (',,irec'uion tl-irougl-i tl,.e later,,ii coia,iectloii E', fl- the Om ML1 ill Iiiie 'Lo t,ii,@ tlieii tile heat suppliecl to or botli 0-,@ the lie.iterF,, I aiicl T be C ut off, or @it lelist. rec[,,,Iceci to f,, cortaivi 0,@sireci iiiiniiii-Liii.i. Allhile steqm i.@,- rei-iera'lly e-Tiit'@ plo,)-od i"oi@ operit;n(r t'iie 1-ieater 45 ii, the zoiie hea'er, it i-s ot I coti,,7se ob-@,ioii s aii@, otlier '37pe or 7@ilij of ',-Ieiter COILID I)e rsecl without tll@E, 2@-pirit of ja-iy ii-i,,,ent-ioii. Ilu: is a"_s-o (,,!),7!o-tis thil by ii-icreas;.ii,u tlie, cap,,teit,- o-f- the zc)ne ll,,,,gte-,-, J 1)0 located iii the s'-orage t,,ilik tlia'@-, tile L if the ZOE . e liep.ter I could be Omitte@(7L, @)ui, heater i-s of extonsive c,,,,pacitv, t'licn the ii,iti,iral cireLJation set iip ip "-I)e stoi@,,ige t@i-ilc -w'll carr@, ofT ayid clissip@ite Ileat 5 t L' he,.-eb.), cief6ating oiie of til.@ o jects O'l riy ipve@.it-ioii, v.,-Itich is to sl,.pply only siifficient heit to @"-lie oil. il-.to the I,zteral con-nectio-ii E' of wlileli tl,-@e a-ui:- ilitry 60 T 'ntroll-in-.@ tlle spe cl of 4-lie iistead of co e puiaiping apparcitiis by t iie@i3a@s ope-i,,,,@t@,cl directl3, froiii t part 'ulitit i-s actu,,itect by the ii-,f)venieiit of the oil thi-,,)iigl-i the !,,i'Leril 65 iiectioli betii,ec@n tL,(,, iiiain liiie, -,!nO, tl,@e stcra oe t,- nli:2various otlier meiiis could be einhll,,tte,! I vii-tually g pip'@. ployed foi, controlling the speed, of the pt,,iiiping ,tl)paritus -without @clepartiiig from the spii-it of iii invent@ol-i,,. IN7hile I have herein illustrated tiio forins o-f' iii)r iiiA,-eiatioi-i, I -",isli it to be understooct 70 t@liat @,arious otl@ei, clei,ices ol@ei@ated by the floav (f tlie, liqtiid tlirotigh the lateral connectioii beti'veen the main line ,ind. the storaoe t-,Iiik could be iisocl. to 6per,,ite, ai-i indicatii-ig inechanisn-i or a speed i,egtilating 75 ,Yieclian;sm.- ind fui,tl-ier. th@it it i s imliiatei-ial so fti@ as ii-iy bi-oad idea, i-s coiieerned, i-viie'L-ilei- t'he iiieans tli,,it is tised for Unifyie@ pump]rig tlit@ i-ate of del'iA,er3T Of I'l of tj iiig stat'ons of the system consists of auto- SO j,,iat;@c,,illy operatiiig indicators tt-iat ivill incltc,,ite coiatilitiotisly to the opera,tors 'in of the puiil'pi,.ng stations hoiv to control tile pumping appar,,ttus to illaintain a practie@1.11@T coiist,,int flony of oil throu-i-i the 85 iiiain lill(,@ or consists of a iiieefianis@m for tiu'Loii-atically inei,easiino or decreasiii(i the t, tn speed or del@very of t e puinpi-ng apparatus. 1,@ Thile I prefer to use a gm, as slioiin i.ii Fio-.ure 1,' or a per I)i 90 as sliown in s Stoll, io,ui-e 2 to actuate ai mea ti-itt reglilates or a.ssists in tl-ie pi-(pei- 1-cgtilation of'the pumping. %pp aratilis each station it will- be obvious that stid p-ciinping apparatus could b6 reo;ulated. in 95 A,,alli oi:ts otlier iva.ys Avith-out departing from s pirit of jiay invention. Wlil e T, hane described iny i.nventioii as tpplied to a system for coi-iveyinocrude retiolei,,iii from oiie point to a;iiot@i"er, it is 100 (,,bvio us that tfie invention is@ appficable to svstell-ls -.@oi- hand'ling other kinds of liquids. Fiav iiig.'Llius describe@t" iny i@nveiiti-on, what I cl@iiiii as iiew and desire io sectire by Letters Patcnt is,: 105 I. A pipe line systeiii, co,inpri ' siiig@ PUMPi-o,(- s'Lat'lons equipped pumpfiig appai@a@l-;tis ai-i-,qiio-ed in series witlil, ttie iiia-in line t@ (i@ tlle syst(-,iii throu-h -wliief-i the liquici is rliiiiped storao,e tanks a@t intermediate 110 piiniping stat-ioiis joined to Itteratcoiliieetioiis on tlie iiiaii-i line, ,tiid iiiec(,ns associated ia'th sgid latera@l con-nectioias for m,,tintainor iii maintaiiii'n(, the piin-ipap arattis o-f saicl stati@ons ii,7i, such concli- 11,5 p 1 L t@oii as 'o teiicl to uiiify the ra-f-@ of delivery froii-i ttie respectiie stations. 2. !V pipe lilie S3Tstem,, coiaipris@ing a iiumber ol'- intermediate stat,ions ari@ailo-ect be'-@@,eeii the receiviiig st-Ltion ,tiicl the terlilillus 120 t@ oT- the E,)Tstel-ii and-' eaeli! provicied. witli @t I)unipiiigal)i),,irattis arrano-ecl- t series N@,itli tl,.e m,,.tin lilie throi-igh -wrlicillthe liquicl is piiiiiped, -L storage tank at each of stid. intermediate stations, j,oiiied by a lateral Col 25 a T-lection witli the iiiain line at t. point in rroxiiiiity to the inlet enid of the p m@pino, u ,ipp@iratus of th-- st,,ttion, t@nd n-ieans at @act ol stid il'iteriuedi,,ite stitions for assisting iii in,,tiiitainiiig a practically constiiit flo-w, 130

1,621 683 of the liqtiicl throu(,rli tl-,, Da' L line, comprising elements operable by the flo-w o' liquicl througl-i saicl lateral coiinections in either clirection. 9 3. A pipe line systei'll, coiiiprisiii piiiiip iiig stations equippecl Avith puinpin(, app,,ti-atus ai,i@adgecl iii Q-eries -",ith the inaii-i line o -L2 tlle systeiu throual-i which the liqtild is pumped, a stoi-ao-e tank at each ii-itc@rmeiii diate st,,tt,ion joined b37 a lateral connection )i,itli the inain line at a point iii proxi,,nity to the inlet - .ncl of tl-ie ptiiiipiiig ,tpparatus, and aii elemehl- Li[ eacli of said iiiteriiied:iatb puinpinu st,@tti-ons alssociated ivith the lateral i 5 coiinect;.on betivccii the miiiii liiie the storage tank o'L sa. sta'bi iii sue a ivay 'uhat it will be i!endered operetive by the flonv 0-1 liquid'tlii@oiigh stid lateral coniiectioii in ei'u-her direcIL-'1011. 20 . I.'. i@i pipe li-LiL,, s3@sf'em, coi-i-ipi-ising puiilpiiag statioiis eqtiipped ivitli ptimpidg apparattis ai-i@,ti-iged in ser;-es Aylth the mair. lli'le of the systexii tlii@otio-li i%,,Iiieh ttie liquid is puinpecl, a s'l-oi-ci(,-e it each iiiteriiediace 5 st,,ttion joiiied b,,- a connectioii Avith the iiiaii-i li-Tie it a poii,.t in lDro.- @@imity to the inlet end oT- tho, puiilplhg "'@ppai-atLis, aiid ,.n element at eacli o'l siid interi-iiediate purilping statioias associated Nvith lateral coia30 ii,ection betavee,.i the iiiain Iiiie aiid the s@,ora(ye ttiil- of s,-,id statioii ,ncl air@lnged 'lii sucli a ),-,,iy thal It will be rnai.-itained -,t r-@s'L or ivill move ill ol:)i)ositI d;lrecto-,,is for CLiffereiit clistiiiees, accordiii(r to whetlier no 35 liquid is i'loivin@c)- thi-ou(-I-i said 1,,,,teral conilection -or Nvl-ietTier IL-he 1'lq,@iLd is Roy,,iiig irto or otit of the storag-, tan!:. 5. A pipe Iiiie s3-s'L-em, compi,isirig ,@ mliin line composecl of ,t pILi@ality ol sectio-tis, 40 puiiiping app@Ll-I'Lt,,-is ti-i'an(,ed iii soi,ies s.-,id sectioiis stc@i-age tinks joii -ied by -iateral coiin-Icti s @Lo s,,Lid PLiain li,.qe iii s-Lich a ii'lanner that the liqlild througli any seetion oi the svstem caii ciiter tli-, storaue tank 1-5 associ,,ited -w-@ith s,,tid sectioii ir@ th-3 e-%,eiit the 1- s i tlle pump,.P.g app,,,raiuL 0 succeecling section of tl-ie s steiii is iaot o-,@)e-,cLit-in--- at a y sufficiently Iiigh rat6 to hiiicille the liq-ul'cl @,hat is stippliecl 'to sai-iie, ard iiieans asso50 cia'Le(i @vith saicl latei,a-I coiiiiectioiis 'lor mai.ntaiiiiiig o.r assisting i--ti iiiaint'aiii;.iig the A,,,trious DLin-iplii app-,,,ratus o'l the s-,@s'L,eiii iii 9 such co@iditioii as to telICt to ct-Lise L pi@actically coiista-Lit -or -Liiaiform i,ate diselll,,Ll-ge 55 froi-,i said pLin-ipi-Lig apparjtos. 6. In a pipe Iiiie systeiii, a ii-iai-n I;Ine, ,t pumping tpparatus in series %vitli said main line, a storage tinl@ j6ined by a lateral connection ivith sltid -.i-iain line ,tt a 60 point in proximity to the irlet enci of saicl Ltils an@. i L meaiis associated pumping appar, wit,h said later@il coni,.ectioii 'Loi@ inclicating -whether liqi-,id is flowiiig tliroiigli saicl coiiiaectioii an,-l if so in ivhat direction the liq65 uid is flo-vving. 7. In a pipe 'iine systeiii, a main line, ,t puiiipiiig apparattis arranged in series -,vitli sai,-t inain Iiiie, -,i. storage taiik joined by a lateral colinection with said ii-iain line at a 1)oint iii pi@oximity '-o the inlet end of 70 L seicl piiiiipiiig apparatus, ard tii actuatiiig means 'Lor aii iiiclicatoi- oi, o@overiior assoe'lated willi sa@@cl lateral colaiiection and opei-able by the flolv of liquid tlirough same. S. In a pipe line sys'Lem, a i-ii,@tin line, a 75 pimping app,-,Patus arral-iged iii series -",ith saicl roaii-i Iii-ie, a storage 'Llaiik joiiied by L latei-a-I coniiectioii i@,itl-i said iii,,tin line at a polnt iii proxiility to the inlet eiid of saicl plimpi.ng apparatus, A-ICT iiieans Lssociated 80 iviluh said laluera'l coniiectioi-i for inclicatiiig the clirectioii of flow aiid the appi-oximate quantity of liqtiid floiiiiig through said coiiiiee'L- '1011L. 9. I.n -@ pipe line systeni, a inaiii line, a 85 puiiipii(- appal.-atits arranged iii series witli said riiaiii lji,.ie, a, s'l-orage tank joined by coiiiiectio.-i ivith s-aid nitiii line at t po'lii'L-, in pj:oxii-nity to @Lhe inlet end of said pliiiipii-ig app,,tratus, an el.-ilient adap'Ll- 90 ecl to be operateci by the flo-vv of liquid throtigiii said coniiectioii, ,Liid a part controllecl by saicl elei-nent. 10. Iii t pipe li.-ie systeiii, a iiiaiii line, a pujiij.)ing apparatus arranged iii series 95 )Yitl-i sild inai-n Iiiie, a s'@l-c,,rao-e tank joinecl by a latel-al conneello-@i witli s'aid niain line at a poliit iii proxln-iity to 'ulie inlet e-71d of saic[ puiaiping -Lpparatus, ari(I a me,,iiis associated -with said lateral connectioli a-nd !'J operated by t'lie itoav of liquid throutgh saiiie for indic-,ttiiig wlie'ther the sl,)eed of saill puiiaping app,,ipatus slioulct be increased or clecreasecl. 11. In a 1,);Ipe l@-iie systeiii, a main line, a 105 puiii ing ap p p,,Lr,,tLus arrinoed iii series ",it'ii said mpiii liiie, a stoi-age tai-ik joined by a 1,,ttertl connecticii with said main line at a point in proxi-iiiity to the inlet encl of said ptiiiiping apparatus, a speect regulating de- 110 vice for s,-,id puini)liio, apparauus, and iiieaiis opei!able I)y the -i@i@'owt'of liquicl thi@ougli s,,,,I(t lateral connectioii 'Loiaettia'.iilo, saicl spee-,l i-e ,,evice. 9 115 12. 'Lii a pipe line system, a iiiiiii line, a luliiping apparat-Lis a-rrtnged -in series with said lilai-n liiie, ,t storao-e taiik joinecl ZD by a L-ter,,tl coiiiiec-L-ioil Nvith said iiiaiii liiie at a poiiit ii-i proxiinity to the h-ilet elicl of said pui-iipinappqrttus, aii indicating iiiechanisiii, t speeel .@e-0,Llllting device -Lor said pumping ,tpp@tratus, ,,,nd @,iaeans operable by the i'loi,,, of liqtiid tlirouc,@l-i sticl !ateral coiineci@-'Ioji 4,-or actuatiiiu sa-cl i.ndicatiia-- iieclianisri-i aiid s,,tid spee(I i.- egulatiiig de-vice. 13. Iii a p;,I)e li-iie systeii:i, a @iiaiii line, a i)ur-@-ipi,,ig apparattis iri!aligecl in series vvitli ;aid mai.,i line, a storage tailk joinecl bi, t lateral coniiectioii with said inain line

at ,t point iii proxiiiaity to the ililet ciicl of sa'd puiiiping a@1),,)arattis, ancl iiie,@tiis associa'L-ecl Avitli said 1,,tter,,Ll connection for atitomatictilil.y iiidie,,Ltilig whetlier the speed of said ptiiiiping app,,trattis should be increased or decreised tnd also tl-ie approxima'@-,e rate of flow of liquid tlirough s,,ticl coiiiiec@Llioi-i. 1,4. Iii a I)ipe l@ilie systeiii, t riia@i-i Iiiie, - ptiiiil)ing appay,,ttus arraiiged iii series 10 ivith sa'l(T iiiain Iiiie, t stoi-ao,e t,,tnl,, ioiiied by ,t latel-al coi,- nection ivith said iiiain line at t point In pi-oximity to the irlet end of stict puia-ipiiig apparattis, aiifl iiiealis fora-Litojia"ltically ilnereasiiag the speed Of 15 said puiiipiiig applirattis AAIien liquicl floiis tlirotio-li siid@ coii-nectioii iiito said stor,,tge t,qiili: ,ind f6r atitoiiiati-lally deel-easing the speed of sai@L puiiipilig ipp,,tratiis wlieii sti(L ,tpptir,,t,ttis is di@,tiving liatiid froii said taiil@ 20 thi-()-Lio@ii sa@i(i latei-,,tl coi@iiectiol'i. @n 1115. A pipe line s-vste@-ii, coii@pi-i:@ing a plurality of sectio.i-is @'L pipe line ,i,@:ral@ge@t in series t puiia,l)llloapp-,i-@Ltils for f6rein(y t liqtiid tliroiigli eacli sectioii tow,,trds all--Liltimate clelivery point, @i ItLter,,tl connectioii leadinfifroiii eacli of-' sai-d sectioiis iiear its cieiil7eiT a stor,,ige taii I -i@t iiieans .@ eiid to k ai associaied %ii:tli e,,ich of saicl latei-al codnections for indictitiiig the dii@eetion of floiv, aiid .10 qtiaii - @n tity of I'q-Liid floiviiio, tlirouo-h said coiinectioii. 16. @,V pipe line svsteiii, coi)@-prising a plui-ality of sections of ipe line ari@an(-ed i@n -Li taiideiii relatioii ill'itli the delii,ei-y elid of 35 one se-,tioit coniiectect to the receivino, ercl t, of the iiext succeeclin,g sectioii, a. punipi , ng apparatits loca;ted iii proxiiiaity to the i-eceivino- end of eacli sectioii for loreing liquicl tlii-ouo-li s,,tid sectioii, a Ititeral lilie coii40 liected -",Itli each sectio-ii in p@,oxiiiiity to ilu-s delii,ery@ end aiid le,,tcling to ,i stoi-,ao,e taiiic, ,i,nd iiieaiis associatecl iir'th elch of said ltterttl Iii-ios f or4 indic,,tting tlieabsence of floiv, the di-reelion of floav, if any, and the appi@ox45 lin,,ite quantity of liquicl floining through said later,,,,l lire. 17. A pil)e line systeiii coiiiprising r, pltir,,Ility of sectioiis of pipe Iiiie @iri@al-io-ed in series witl-i t-lie delivery ci-id o-L oiie seeti-o-ii 50 coniiected to the receiving end of the next SUCI,eedilig section, a puliipiiig apparatus for forcing liquid tlirou,-I-i e,,tch of stid sections, a lateral line leading fi@oi-@i elilch of sections near its delivery eiicl to a storao-e t,,Lnli: I 55 Iiid n-ie,,ins associated Avitli each of- sa',d lateral Iiiies for controlliiig the rate of clisch,,irge of the i)iimping apparatus which delivers liquid ii-ito the next succeedinu seetion of the pipe line. 60 18. A pipe liiie system, coinpi.ising a plurality of sections of pipe line ari@aiio-ecl iii series with the deevei-y end of oiie sectioii cormected to tl-ie receiving end of the next ,ceedinly section, SU(@ a, piiinping Lppai',,ttus 65 for forein-g liqtiid throtigl-l each of said seetions, a storage taiik associated iiith of said sections aiid joilied by a lateral co,,ineetioii witl-i the sectioii adjaceiit the di:schai.,90 end of sinie, @L ilieans associated witli otich ol' said lateral connections and actiliated by 70 'lie@ pressure di-op s-,t iip by the liqliid flowiii(- tl-ii@o-Ligli, said connectioii Tor i-iicl,'.catiilg tile coitc@@itioii iii the coniiectioil, ai-ic-I iiieans -%,vhei@eby the pi-essi-ire: drol,) for -any o@iven -fl()iA7 thi-o,,tgl@ the latei-,,@l Colillectioli 75 be iiici@-,.ased beyoi-id iioi-iiial. 1.9'. A pipe line system, coil-ipi,isiil(l, 1, pliti-.itity o'L seetions of Pipe Iiiie, @ii@i,aii@gec[ ill seriies ivitli the deliver,), enct of oiie sectioil iii 1)roxi-,mity to tlie reee'lvino- end of the next 80 succeeclino, sectioil a p-Liin-i)iiig appa,@attisfor foi,ei-n-o@ liquid tli:i,o,,igl-i c-@i-ch of said sections tri-a-iii(@)-ed iii stich a %-@,,tv that it receives its stippil, of liqti-id froli:i the de'livery end of. tlae pi@ececling sectioii, a storage 'aiik joiiied 55 u by a 1,,tteral (!oni,,.ectioi;i \iith eac'il of, sai@t @,@ectioiis in pi-oxijtii@uy to the clelivery en(I of saitie@ an associ@ tCd with eteli of sal(I coniiectiods tncl coiistriletecl jn sucli a way that it ivi.11 iiiove ii-i one ctii,ec- go tioii or the otliet,, clopeiidiiio- i@ipon the ra'Le @iiid diieet'oii of flow o -h I f the liquid tliro'Li,o said latei-al connectioli, tiid iiieaiis for Litiliziiig the i-.aovcmerit of saicl elciiient to@ C@111,C@e a cli,,,nge in the speed oi' tlle pumpin@g apparatii's foi-ces the lilquid tlii-o-L,,@ol,li the iiext, slieceecting sectioll Of t-lie pipe line. 20@. i-@- pipe l,iiie sy@steiia, collipi-isilig a Plilrality of- sectioiis of pipe liiie ai.,rLiii[g),ed iii s-,,ries ANitli the deli y end of one, se,-tion l@00 el iii proxiiiiity to@ the receiATing el@id of the next ciucceeclino, section, a puiiiping apparatits for foreino; llql-ild throtiglii eaely of sai.d seeticiis ,irTanged in si-icil 1. -w,,iy tli@it -it will rece-lite it@@ supl)ly of liquid froiai the dcliv- 1(5 ery eiid of-' theprecediiig see'Lloii, ,t stort(,e tai-ilc associated witli each of said scetioiis aii(:l joined by ,t lateral connection i),Iltli. the sectioii a;'c ',I point in pro-,-l:iiiity to it-, (@i.eli@iery end, an element assbcittted ivith ei,@h of said lqtertil conneel@-lioiis aiid @tdaptecl to be moved iii oiie directioii or the other b-)7 tlie- fl6w cvT the. liquid tl-ii-outo@h saidcolilleeti.on, PD.d ,L ineans governed by said ele,mer,-t f6r indicating to the opei@ator iii of the dire tl-ie ptiiiaping apparati-is etion@ of flonv of the liquid tllro-Ligh said 1,,,,tera't COIInection. 21. A pil)e: line s@,stel-ri coii-ipi-isin,), ti iiiaiii j 120 iiiie par,,tttis arrtiiged iii se-' @ plimpllg "P ries Nvitli said i-iiain Iiiie, storao-e tadks joined to said iilain Iiiie by lateral connectioiis that are tappecl onto saicl line at I)oints iii proxiinity to the iiilet ends of saicl puiiipino- aP7 125 parat us, megiis associatecl -witli each of"Said later al coiinectioils !or mointaining or assistiii o- in iiiaintainiiio- the pui-iiping app,,tratlis in such conditioii as to telicl to unify -i said pui-np' 130 the rate of delivery froli ing apparatus, and heating devices associatedwith

said stor,,ige T-or iiia;-nt,.iini-iag Pt relatii,ely s..Liall qii-i-itity O-ILI o-il ii-i eacli oT sal(I tani@ s oi@ t citia,-itity o'L o,,l 'In the la4@-eril -,oiinectioli leiclin,"), -Trcin tlio tanic in a !-.eotc@d conditioi-i. 22. li'l a pipe Iiiie system, a main line, ',t PUMPIDG apparitus for forcing liquid througli said 'lin(,, a siorage tanl@c joiiie,-l by a lateral coi-ii-ieet-.'Ion -with saict main Iiiie .10 at a poiiit in proxiiiii'Ly to the inlet enel of tile puiiiping apparqtus, a meaiis associ,,tted ivitli saicl later@il coiinection iiid operated by the flow of liqtiid tlirou,,,),Ii s,,Lid co--@iiiection tliat, is used for iiiaiitaini-lig or assistiiio, iii 15 maintaiiiiiio@ silcl puiiipiiig oripar,,tt-Lis in slich cond;tioii as to tenet 'L-O cause the liqiiid to flow tli,@-ouo-li the li'laiii Iii-ie witl-iout entering said storige tank, iiicl a heatiiig means ranged in 13roxiiiiity to the. poliit ivhere said 20 lateral coiinection is joined to s,,ticl tanli:. 9-3. III I Pipe -L ne systein, a iiiain Iiiie, a pumpingo@ apparatus for forcing liqtiid through s,.tict liiie, a stol age tank 'oi,@ied bv I a lateral coiiieel'ioii -wi'lli sii,-l rii.-,in line ,tt t poil'it --'-n proximity to t'ile i-nlet eiicl o'i the pui-iiping ,,pparatLis, ,i mr.,ans gssocia@@ec, i7vi4ui-i said latei-al coiaiiec'Lio--,-i aiict operat-.(l by 'Llie fl6iv of liqtid tliroi-igli sad coiiiiection tha'uis usecl for maintalning or assistiiig iii iiiaiii4ainiug said ptinipirig a-pparatlis i-n sucli conu dition as to tend to ea-Lise ti-ie liquicl to flow througi-i the iiiatii line witlio-Li'Ll eiiteriiig-, said storage tai-ik, ai-id aii automatic iiieai@s for rendering sticl he,,-,ti-ng iiieans operat'lve ancl 35 inopei-ati@,e. 24. In t pipe line systen-i, a main Iiiie, a pumpiiig appiratus for forcing liouid throtigh said Iiiie, a storao-e tank joiiiecl by h s,,iid lilain i ,i lateral COI'Iiaectlon wit I'ne 40 at t point in roxirliity to the inlet e@id of p the pui-iipiiig apparatus, P, inea@-is assool-ated ivith sa-ld later,,tl conne,-tioii aiid o-nei@ated by .L the flonv of liqu,@cl tlirotigh sai-,l coni-iection ,-iDil'lg Or that ;.s used for maint issis@uiiig iii 45 1-naintaining said puiii-r)ing apparit,,is ii-i sucli coi.aditibii as to tend 'Lo, cause 'uhe liq-Liid to floiv tlirotigii the iiial @n line - @vitl-iout --iitering said storage taiili:, aiid ineaiis for aii'Loiiiatic,,illy varying the quantity of heat or iiiten50 sity of heat produced by@ siicl hea'iiii(y rj-,ieaiis. 25. In a pipe line system, a Iiiie, a, pumpin- ,tpparatus 'Loi, foreiii,,2- lioui-,l througl@'saicl line a -1-toi@aol-e la@.11@ joiiiect by a lateral col'liiection iv-Lth sa 4 d l@ne at 55 a point in proximity to the iiilet e,,icl of the puiii,@-)iii(T app,,iratus, a ineans associated With se, i @L lat@cal coni-iection and oper,,ttecl by the floiv of liquid tl-irougli said connec-tion that i@lainiiig or assistino- iii mainis iised for il t-a-iiiii.ig said ptiiiiping appii-atus iii such con- .6i) dition vs to teiicl to cause the liquid to flow tlii@oiio@j', tj'.ie ina;.Il line witho,,it e-Titeii.ng said tiiil@, iiicl iiieaiis i)@hereby the flow of liqtiid fi-oiii sa:l@L taiil@@ througli s'aid lateral coniiect]On caulses stid lieatiiig nieajis to be 65 reiide@,-ecl oi)erative. 26. .1ii pipe Iiiie systeiia, a, maiii li'pe, a puii-ipiiig appai-at-Lis Lor forcing liquid tii,o-L,,I.li gt,"cl Iiiie, -. sto-.@,ao-e ta@@-ik ioined by ,, latei@,,il co-Liiiec[ioil said niaiii line 7o a'u a poiiit in proxiii:ii',y to the inlet end of the ptimpino@ ,i.ppar.atus, t iiieaiis associalu-ed slid lateral connection aiid operated I)y t'iio floiv of liquid tlirougli said coiineet'lo,,i th@ql,- is useci for iiiaii-itainiiig or assist- 75 in-,)- i.n maintaining said piimping apparatus ii-i siieli coiidition is 'Lo tend. to ea-iise the li,-,tiiid to floiv tliro,,igil the main line wit-IlIL o,,it ei-ite,.,iiio- saicl storao-e taiik, aiid means i-,-iiei'eb)T the flow of 1-iquid throt@gh s,,ticl coniieetion in'u-O SELid tplnk calises the heit prodticed spid iiieans to be din-iinislied and 'the floAiT o-l@ oil iroi-ii said taiik tlirough said L i.,,te,,-al co-nne,,@tion caiises tl-ie heat produced by saicl iiaeaiis to be i@@iereased. 85 @@7. A pip(, line systei-ii, compi@isilip- a pluof sections e arranged in @e ol series, -v@-ith the deliv@@iyl en'cl of one. sectioii connectecl to the receiviiag end of t@lie next st,,cceedino, sectioii, a pumpiiig apparatus oo fol-- Toreiiig liq-Liid througli each of said see-Lio-,)s, a lateral line conilected to each 0 'L said sections near its delivery encl and leadzm ii-i-- to a storao-e taiik, a heat@ng means ari,,iiiged ii-i pi,o2,iinit,)7 to the poi-nt where, s,,tid 95 la'L-eral 'line is coniiected to said 'L-ank 5 nleans assoc-'LLted vv@th said lateral li-ne for varying tiie quaii'Litv or iiil-eiisity of heat produced ximate proI)y laeatil-ig meaiis in ,tpl)i-o pol-@tio-ii to the i,a'Le at -",hicli fl-ie liquid flows loo 'Lroiii the s+lor,-,ge 'Laiii@ t@ii-otigli the Ilater,.i.1 li,.le toii,ai-cls tl-ie pipe line, ,tnd iiaeans for s'u-oppiiig oi-, li'laterialiv reduciiig the quanor oil lieat I)ro,-Iuce(I bv s,,-ti-d lie,,itii-i means if 1,1.,e flow of I-Lq-,iid tlirough 105 9 sa; CL 'lateral li@ie ('eases or if the dii-ection of flow Oi' 'the liqiiicl is fi-om the pipe line' iiito 'ul-ie stora@-ye tank. GEOPGE D. POGUE.

This iiivention to oil pipe line gysteiiis that are, lisecl for trans])o-L-t,ino- petrole-Lim crii(le O'll conz:i(lel@.,@,,I)IC@, clis't-@ilices., Toie-- @,le, 'I r ariip "1,.n ol or poilit -\-V'iiere er-ci-.Ie oil is produc(,cl or (-;iqlhered t,) ,iii oil re-@iiei-y, possil)ly Iiiiiieti-eC!,s of iiiiles clistpnt. A ,t tile till:le ti,ere ar@, tivo tyl)es or kir@dg of oil pire line s),steii-i.-, ii-i o,"nei,al itse, I)oth of ivhich 10 vided up into a Plul'ality oll Eecticn-1, Pi!i@,,l,ngecl in 't,,inclein or scries i@eli,,it-ioi-i @incl e@ich ,it -t Li , section eqtiipped @ I S .I eiicl A-,,ith a I)uia-ipirl-,fr ippartitiis th,,it clis@,I-Iar@zes 6il iiito the i-iiain Iiiie at aboutt 'TOO lbs. press-Lire. In e Oll 15 one of saicl svsteiicis tli @-Lt th(, delivcry eii(I @f a sectiod. iF, dis(,,Iia,,Lg-'ed ii-ito a 1.@,rge storige tanl@ @vlii(-h., in ttil-n, ic; coi-.- iiected to the siictioi-i of 't-,Iie ptimpi.n,,); @ipp@ti-atits Ailiieh fo,@-cQs the oil thl-,ot,,gli t;lie Se'e'ti 0- ;iiecee,din(y . tile snstem@ s-,ich 20 next 0 4@ a lia-\7iiig @ertaii-i ob4octioiiable ch,,ii@- acteristies -whicli OA7ereome, or m@nim-ized by tlle inveiition t.1-i,,it foi-@ii-, the siibject-i-iiatter of my application Tor pitent for 25 oil pipe line svste,,ii, Sei-ial No. 613,912. filed ,Jp,nii,ir)T 9@0, 1923. In the otl-ie,@ convention@il pipe line svste@i-i, the @Lelivery eiid of oiie @:cctioii of the mi;,l li-ne is coiaiiected to the suction inl(,t o-f- the piiml)ing appiratus .30 -",hicli cliselia,,@Q-es into the nexlu- sti-,ceeclin(y sectlon o@ t i. the At a I)oint, in he iiiain l@@ne nea@.- tf@e (lelivei@-,@ en(f of eacli se-tion a, later,,il coniiectio,,-, le-@,ds oft to a stoi-aue tani@, the ari,,,iiigemeiit I)eing stieli th,,it 25 tli.e virio@is stoi.-,,i-e tiiaks of the svs,ein flocit oii the iiiain line. My , preseiit iiia-eiitioii i-elates to ,iii oil pipe li.ne @-,-ysteri of tlie type li@st i-eferred to, nai-iiel),, a systerii thatcompi,i.,ge,-, @i, niiiiiber 4(t of int@riiiediqte statioias irr,,i-nged in t,,tndei):i iclation bet-,veoii the receii,iiag st@ition and the teriiii,iiiis of the line -,ncl usuall), locatec', 40 to 50 i-i-illes @i;p,@ii-t, :@,n iindeigroiiiid pipe line c6iiiposed o'L a, nilmb(,r ef soctions that 4 coniiect thc, variolis Qt,,tt'ions of the svsteiii .1 together. -,L puiiiping appir,,ittis at each of Ll,e iptei-medi.ate @@tatioiis 1).aviiig its stiction ii-ilel. co,,in,-,c@,ef.1 ,Titli tl-te seetion of pipe line )-vhich leacls fi-oiii tli(, stati.on of the systeii-i aiicl its (lis,,h",r(,@e coane eted Nvith the section of pii,)c, j'iii(@ leacis to the siiceocclino, s'@,@,-,tion of tlie 9- ),steiii an(I storage tani@s ,,t the inte-,jiae(l.i,,ite stations tli,,ic are coiinectecl 't@lie pi-pe lin-. in such a -,vav ,is to I)erm-I'LtLe oil b@-.'In-lNIar. 22, 19@'@7@ UNITED STATES PATENT OFFICE. G7@O.ctGE D. :POGUE, OF, 2TOU-L7T VFPI\TON, IsTEN@r YOP.11@. I?IPE-LI@,\TE SYSTFX. Apl,,Iioation filed February 23,19P3. Oerial No. 690,792. piin-iped tl-ii,otigh 'tle @@,,stem to,flo-w int6 ilicl otit of tl-ie stoj:-age taiiks it the -tation,,3, de-, peiicling -tipon the r,,ite of opei@ation of @the piiiiipirg ,ipparatus it the ipteriiiediate@ st@tu ne systein 60 t-lons. In the coinv(,T-i'- ion,,,il pipe li 0-l! tl-lis pirtiel-i.lir t3,pe if I-,Iio (.,,iiantit.@ of oil ari-iviiig at anIT iiite,@-i-ftediat-e gfation tlii-ou-h the section of the pip,e, Iiiie tti,,it leads fr6"in zn ,i miii-i I.Ine cli- the pro edi c no@ stf,@tion i,@ o,,,e,,!- tej- @ th,,tn the @' i@ @- I't' p . qiianti.ty oL il disch:ti-oec b3, tl,,e Puiii Ing 65 appa ratuts of saicl. stitio n into se t,ion of the p . @ line, tl-te ncxt @@lleceecling c IPC tlieii the "ovel-,Lo'e" oiexces y 0 01 s qtiantit f floi-@'s fi-o--tii tl-ic,, ii-iain ]@ine iiito tlie@ storage tanl@ at s,,i,i-d iiiter1lle(li,,ite st,,iti.oii tbroligh 70 the ecianec-Lio-@i be'tayecn siicl storage tank. ,iiid th-, iii@tin line. Cop,'7ersel.y, if the qiiinti7l,y of oil ai.,,ri-v,',ng at an-- interiiiedi,,ite staticd of- the s.)Isteni is ie-,s tll,,in the quantitv o-f oil clischaiged b)r the 1,)uiiLiping appara- 75 -Lis of- saicl I o Ileceedino; t st@ition 'ili 1-,I-ie iiext 5" sectioii o-i! the iiiaiii line, tlicn o-ii ivill be dr,(i-wi). froia-i the stoi@,io-e t,,tnk @it th,,t stition iiito tb(@ mqili line throi@io,,I-i the lat(,ra.1 connection 'L.i-oiia the line to aiid storage 80 tanl@. If the criide oil bein,g liandlecl by the systeii-i is of a vi,,,coiis 11.1tilre it is, iii soine cases. necessary to heat it befo-,- it e-nter,,@ etch seetion of the Iii-ie to facilit,,ite the flow of the 85 oil througli t he pipo I.ine, ancl in a systein of the pa@@tieLilai- type just to it lia,-, been necessa.-), in s@icl-i cases to provide rneans for in,,tintainin(_y the entil@le q-Liant@ity of oil in the s'Lorage tani-, of e,,tcll iiiterm6diate sti- 90 ti6it iii a boated condi'uioii, when heating of th(-, oil is RecesF@cqr'NT. Acco-,cdiDgly, tli I e con@vci-ition,,tl pipe Iiiie systeiu of iLh@ particulv,.r tvpe to -iihich n-iy pre@@ent i.nvention relates t,-"-o very ob- 95 jectiontble chai-actei-istic9: Ist. It does not co.,i'ueiiiplate tl-ie use of t i-iieans 'loijiLiaint,,iinine@ proper r4,,I,ationshi.p in tlia, Y,,tte of pumi@a@e oi' i-,he variotis statiolis. Col'isequently, the r,@.te of flow of the 100 oil tliro-Ligh the iarious seeti ns of the sys o te,,,i is s7Libject to continiious vli,iation, p roO@.ticing coD'Linli,,il chc,,nges in the level of tilp, oil iT)- the storage tanks ,it the intermediate statioiis, that float on the m,,tln line @?,Ild re- 105 sultiii(@ in a i-ellatii,-elv liliqli ealtllpo-catioii loss, bee@iuse -,ii abno@iiiai i-ise in level -,iill force rige t, otit of i-,I-ie sto , tnl;@ the ,iir @,,,.bove the oil W.Ilich i,s sittirated -",ith the volat-ile congtituepts of tl-le oil alicl an ibnorm@l drop in 110

1,621,683 level will calise a large quantity of fresh air to be drawn into the tonk and mixed with the vapors rising from the oil. 2iad. The practice of n-iaintainiii- the e,,itire quantity of oil in the stora(,e taill@s in a heated condition during the seasoii wl-ien heailiiig of the oil is necessary entails a co,,isiderable expendit-Lire for fuel iised to heat the oil, ,ind moreover, tends to increase the 10 evaporation loss, due, of course, to the -act that the volatile ecnstittients of tl-ie oil - Nvill escape or be driven o:ff to a greater clegree when the elitire body of oil in the t@-Lnk is heatec't. 15 The main object of my invention is to pro vide ,tii oil pipe line systern of the general ch,tracter referred to, namely, a. system coi-iiprising storage tanks that float on the inaii-i line, which is so constrileted that f-, practi20 cally coiista.nt or uniiorm rate of delivei-y fro@n all of the intermediate statioias ol the S.Ystem can be maintained, thereby redticill-,the evaporation loss by preventilig tn abnormal variation in level of the oil in the 25 storalye t,,tnks. as occurs iii the col'li,elitional pipe line system of this particular type. @notber object of i-ny ii-ivention is to p2ovide an oil pipe line s),stem of the o;eneril tvpe referred to -",hich 'is so constriieted-tbat 30 ]@6,lting of the entire ql-iantity of oil in ti-ie storaee tanks at the iiiteriuediate statioiis is not necessary, thereby effectin.- t coiisider,ible savilig in the quantity of ftlel used to heat tl,ie oil in cold weather and also reclucing the 35 e@,aporation loss. Other objects and clesirable features of my invention will be hereinafter pointed otit. To this end I have devised an oil pipe Iiiie system in which each intern-iediate statioii of 40 the system is equipped witli ineans that Nvill eitlier automatic,,tlly control t-he speed or delivery of the purnpliig apparatus of that p,,irticular station, or indieate to the operator in (-,haro,-e of said stttion lio-w to goverii the 45 pumping apparattis so as to m,,tilitain s,,i@iie iii such a condition th,,it the ptimpaoe rate ofthat particula,r statiol'i will cor,res@ond to the iiet qualitity of oil beidg received froii-i the in-in,iediately precediiig st,,ttion of the systein, 50 thei-eby producin(y a systein iii which the oil will flow, practic"'ally contintiotisly througl-i the main linp, from the receiviiig station to the terminus of the line. Owing to the fact that there is no flow or 55 t relatively small flow of oil from the intin line iiito the stora,ge tanks and back iiito the main line under normal col'iditioiis, it is Oilly necess,-,ry to maintaill a. relatively sn-iall, quantity of oil in t-he storage tank at eacii 60 intermediate station in ,t heated conclitioi in cold weather. Accordingly, in luy iir,proved system ea& iiitermediate station is equipped -with a heating device arraiio-ecl so t@ that it will heat either ,t zone of the later@il 65 connection between the maiii line and the stoi-age trnk or a zolle, of the stol-agc tailk in i,)roxiraity to saicl latel,al conliectioll. If clesii-ed, me,,,,lis can be pioi-iciecl 'or autoinaticallv coi)tro'Lli,,-ig the qiiantity or iiitensit,v oi' t!iL, lie@,-Lt s,,ipplied to s,,iid zol)e oll, zoiles 70 so a,-@ to t,,ii.,ii -)ii tie sui)plv o-LI 1-icat ,-%,lien 'the o;ll to flow -,"roiai-th(@ @,to-@@age tiiif,, '..iito tli(, i-n,,.ilii liiie ,,nd autoii,,il,--l,all@ iner(,@ise the i-.@-ite-,isit,)T oi the qi-iaiititv o-,Ll 1-ie,,t supl),@iecl in appi@oxirri,,,te pro])ortioii to the ol" floii, 1'5 of the oil iiito the iiia@n li,-,,.e, or autoiiiatically re,,tuce or etit ofv, the suppl-NT o-LI lie@,,t to S,,Lid zoiie or zoi-ies th,- dii,etioll o:'k' f'toAA, of the ol tlirot,,o-ii saicl 1,,ifer,,1,11 is re,- A'VOI,ds, i-,,hen oil SO Vol secl, ol-, ill of.l@-jel IL-o floy-@, 'li-o-,,,i the Iiiie into ihe stoi-a(,-e ti It i-I NA-ha @Ll is ii,@.,,ed o i, ,tuto.,ii,-,tically coil!L-i-olli,.-io@ t-t,,e puiyipiiio@ p - t@, p,,ii@atiis at 'Lhe cltitioiis or for indici,@-',-- 3 iii-7 to tlig, oper-itoi-s iii e'liai-ge ol the, @,@t@at;ons ]@,c@i, the apl),,ivitus -Iioiild bc, -overiied go ,,s to tipil.'V tl)e rate of delivei,%,, of ,ill of the 1)ui,-ipin- statioii,,@, I)ut T pl,el(?I' ,O ii'Llilize the 'floiv of the oil tli,,@oiigli tli('. 00 coiinectioi,,@ I.eacliii,,), 'T'i,oii:l the jirie to the storage so is to opei@,ite deiice,-3 at the iiitei-P.-@ediate st,-tio,@is that t--ttiite ijidicatoi-i.@ o,,, ii-t'Loiiiptic speed (,ovei,iioi,s a@'S(Ciate(I Nvitli 'u-he ptiiiil)iial-u ,,pparat-Lis. T--'L' c el- 95 a st,,itlon is ecii,,.i ped c@ii iiidicatoi-, p i-Lidi,-,-,-Itoi- -will I)i-e-L'e,-L'ai,)Iy be cois'L-i-ifete(I i-,l suell tli@it it sllo-\v collt".Yltlolls]-N, the dii-ect.loii ai,@cl qtiiiil-i.ty ol@--' f-ioai, o-L' 'Lli(, oil the latel@al coiinectio@i ioiii@, lOt" tli(, sto.@@ao@e -,t seici st,-tti.oi-i ivi'L-li t'lie iiiaii Iii-ie, iii o--@dei- 'L'ilat tlip- opei-a-toi, ;In clia,@(--e o'L the @totion ii-iay be kept l'iii'orilioc[ as t6 tile coiiclitioii exist:ng at @.,,iid stt'LI'ori, aii('t tliiis be ible to iiiiiiiiall@, the ptij-ii pI,Te 105 r,@tte at th,,,,t s'catioii to co-,,,respond to tj',e ile'c qt-,,,tntltT ol@ oil. b,-in!.): i-eceii-e,,l froiii it-, iiie@tiatelv ,)i-ecociiiig sta'Lioi-i o---' the sN,-@jteiii. S@.icl indic,,,to-,- or iiiea,iis @s j)ref e r,,, b 13, c o ii s t -e u c t e di-i s I I ',I iv, y t It I,! t -i T, t 11 c c, 'IO ic', DO f-101-V OT oil throti(-,,Ii tiie coiilieerioii i@i eitliei- clirectioii. thc@ii th(,' in(licltor i7villi ,,.,ta-,id at zero 7 bi,,t oi't is a-.Ilrii,-ing at -aid statioi-I at. the r ate oi@, say, 500 ba@rels I)er clpv i-.i exce@,s oi' the at tl)e P"11),Pillg Ipl),Irltt!S is si,,ppl-@,- ino- oil to the iie.@:t stieccediiig statioii,. ti@e iiion-able eleii-iont of t-lie iiio-%-e i.iito ,t posit-,oii ci-i L (li,-@l -,Lll@it the opc,]-al-o@-@ Ai,ill tiiacier@'L-,,iid tli-,it ill. orcler to 1,20 tai-ii oT-i the le i):ius' iiici-ease the 1",Ite o-t-' the lr)timpi,,-.g app@ivatus at sai.d - ,,t@-,tioi ',,00 barrols pei! dtil. Oi- if the oi.1 is @.t tliit ,@.tation at the 3-,ate L of-, sey, "00 )ar el p y less tb'-q -ile@ j@latc, it iyliieli tite a'c -aicl is d4@,@@,,I-@,,-L.g'ng i ii, I see] oll to tj e t.io--Li O.- tlia p,"i)e@ 1',,,e -ie,,,@diiig to 'lie ne2@L siic-,- - u ceedl'ii(- statioii o-l- the sys@leii-i, the ii-io-tt'Lble eieillen,L- 0-@' the iiid;cato,-o A-Vill MO-,7e iiito 1130

,t positioii on ilie dial as to iiotify tl-i(, opei,ator that lie iiiiist decrease, ti-il@ speed of f-lie puiiiping appai-atus so as to decieise tli(, plillipage i,@ite '000 i-els pe,,, dav. if eacli iii'Le-L-iiie0tiit @t- @-oji is, oqi@ti,,)pe(I \vitli a ino,,ins foi- aittoiiiiticallv or de,.@-@easliag -t'lic ,I)(-,cd o,., of of the ptiiiiping app@ii-,,,tils ,i'L the st,,itloii, depencliii(@- til)oii the dii,e-,tioil @,,iid r@ite oj' f-to@@r 1( of oil t]IVOUO'll tile la'-eral coiinectioii t'@ joiiis t@ie F@toi@-atze taiili: it tile station Aylth the iiiaiii !;Pie, the i-,zte of diseliii@(,e of. all of t'ile puiiips oii t I i , s y @V ill I)e autom,,-,tically iyitiiiit,iii-ied ,-,utbstaiitially e(it'lal, of coiirce, 15 -'i@ol.' Ili-,e leal@-,tge, evapoi,,Ltion, fi-oi-ii tani@s ind -witlidrLi,,ATals m-,i,de fi-oll:i the line it A,.ii-ioiis poiiits for fuel or otlier ptirposes. Irrespective ol' -whether the stations @Lre oqtiipped \iitli tii,.to20 iiiatic iiidica:4Loi.-s ol- ,ttitortiatic coi-itrolliial. me-Iiiis 'loi- the 1)tiiiil,)iii(y ,tppar,,itu@@, the of oil iiito ai-id otif of the stori@_ye tiiil@s is matei-l,ill.y reduced, decreapiii- t'lle ev,,ipoi-at'oli losse@Z-1, ancl urid(,,@! ce,@@t;,,iin coiidi25 t@ioi-is, heat losses. Fi(yure I of tlie, di-aiv'ii(,,,s @.s a iiiatic vie)y,,, illus'ui-ating one of the iiiterniediate stations of a pipe line systeiii constri-icted in iccordanec, with iiiy iii@,eiiti(In; and Fio-ui-e 9, is a simil@ii- view, illustni'Llii-i(,, t cii:ff,erent forin of device foi. Litiliziiyg tbe floa@@ of the liquid Iiito or olit of tlif@ stora(ye taiik of the station foi- aetti,,itii-i(_y ail cator or a mcans f o r conti-oll'ng the spee(i of the inotor or otliei- priiiie i-.iover of tLe puinpijig ippai@atiis of the sta'uioii. In the foriii of my inventioi-. @,@hoiirii i-,,i Figure I A designates oiie section o" i-@i I 4 i,) Ulldei@o-i-oun(I pipe I;ne th,,tt I.eads fi@oill (I'le @n station of the s),steiii to tli-I iiext siieceediii@@, station of the svstem a,-icl so t'ilit it Niill diseli,,ii-ge into ,i pui)ii) B t-h@,it the oil to th-e section A' @f the itiain Iiiie 4,-) that leacls to the ilext s-Lieceediii@,y statioii of the system, the piii-al) I' beiii@" 1), a iiiotor or other stiital)le i)i-@n-ie iiiovei, C. The statioii at whicli the ptiinp B is locate(I @s provided with a stora(,e tank D tli,,it is 1 jo iied to the sect' loii i@ o-f tlie i-iiain I'ne b), i a later@il coiinection E tlaat is tappeci oi-ito said iiiain linc,, at .t 1:)oi-,ilu- in pi-oxii-i,,Ili-,i,- to the stiction inlet of the iiilp B. i@-t ., tAy, o p points oi-i the latei-al coiiii-ection E pilef,@@i-I ably a coiisiclerable distance ap,,ii-t@ 'U-o sufficient I)i-essuie differei-itial, ai-e coiineted two pressure Iiiies 1 aiicl ",hicli lie-,,,d 'L,,,) cliaii@bers la ancl '@)@ iii,aiio@eC'L On OPP"Sl'ce sides o-I q flexible diil)l-iragi@,-.i F. I'T' thei,e C'O is a f-loiv of liquid tlii@,)ii(,h- the la'Lell'at co,-inection E froiii the iliaiii Iiiie toAva-t-d@,, t'Ll-I storage tanl@ D, tlieii th-e pressu,@-e iii s-:d 1,,ttei-al coniiectioii at the inlet to the slire lliae 1 ivill be Iiialic@-iiifl, 1)ressure in s@i-d latei@@il coiiiicetio at the nlet to the presslire Iii'le 2, and the cliiI)hragiii. F Aiill be cleflected to the left. Likewise if tl-iei,,e is ,t flow of liquid throu(yh the lateral coniiectioii E froi-ii tl-ie stora,-, tanli: D tovttrds the main iiie, tile I)ressllre 70 iii saicl latei-Lil coniiection at tli.e inlet to tll-, presstiie line 9, will be h;,(,Yl-iei- relitively tli,@cii tiie pressui-e at tl-ie ,n'tet to the press-Lii-e Iiiie 1 and tl-ie diapliragm F will be d-eflected to the ri @ght 75 The diaphragm F is operat@117e]y coniiected eiviier witli the niovable eleii-ient o'l an indicati or ii,ith i. me-,Ii,,lnisill for @t-Lito-np-- delti-,e matic,,tlly conti@olling tlie speed of the motor or prime mover C ivhich di-@i_ves tl-ie ptiiii so . p B or, if clesil-ed, the diapillra,,Tia-i F can be oper,,itiveII7 coniiected )ltitl-i ,i speecl governing device' for tl-le iiaotoi- C or with ,iii ii-iclice,.tor aiicl speed goitei-iiing clei,ice. In the i@ori-ii o'i My invo,,.i't.ion slioiin in Fi(ytil-e I tl,e diaplii-fto-in F is copnected lvitl-i an ii-idicator needle 3 tl-i,-t co-opei-ates with a statio-Tiarv di',Il OT scale 4. ll"lien t@-te, cliaphragm F fle-.@:es to tl-ie ri@,ylit, the indicator iieecllp, 3 will r-riove over the clial 4 tow,,irds 90 the left, @,,nd ivl-iel'i the cliaplii-a@-ym F exes to the ]eTt, tl-ie indic,,ttoi@@ needle 6o iN,,;,Il iiiove over the di,,il towards the riht. It is ii-niiiaterial honv the elial 4 is iiiai,lzecl, blit I I)refer to piovide said clial -\vitli a -ieliti-al 9,1 point, desio,iiated bv 0, it wliieh the iii(lic@ttor i-ieeclle 3 st,-n(Is Avlien no l,qiiid i,, -flo',Ving throligh the latei-Dl coiineetioll E in either directioi-i and provide s,,iid (I.iil )),itli 10( suitable inclicia ,irraii.ged It ol)posite side,-, of said neLiti-,Il I-)oint, for ex-,til'il)le. @ulie .A-oi-ds iiiei@ease speecl" to the 1-iglit of saicl nc@titril poi,-it aiid the ivords "cleciease sp2ed" to tl-i(,, left of sa'lcl neut il poii-it, so ,is to indic,-,te I' to the operator in cliai-ge of tlie, plli-np B 105 that be slio-Lild inei-las,-- tl-ie speed of tlae iiiotor C iithen the indi-catoiiieedle swiilgs to the rio'l-it aiid sliotild decre,-,ise the -,peed of said motor wl-ien the inclicitor iieeclle swings to tl-ie leit. If desired, the di@il 4 caii also be pi-ov-,Clecl Aiitla indi I cia that cooper,,ites ivitli the indici,,toi, needle 3 to deiiote the ,tppro.--,Ijyiite i-,ite of flo\it of liquid througi-i the lateral connecti6n E iii eitl-ier 115 direction. As previotisiv st-,ated, the moa-elilent of the (liapla,@!agm F caii t)-- Lised to aetiiate ,i speed gove,@ll'lii-ig (levi,-,e 5 that i-s assoc;,,itecl iiith tlie motor C -\vhicli drives the ptimp B so as to aiitoiiiat;cajly control the 120 s-,)eed of the piiiiip, the d(@,vi.ce 5 being herein i il.lustr,.lted as coniiecte(i bv a link 6 witli the loivei- end of the iiidicatoi, ioeclie @), the,,-eby pi-oclucino- a illechinisii -i, -Nihich, in add'tion to aiitoiii,,tti-cally controllij-i(- the speecl of the '125 purlpiii- apparatlis, -will ii-idleite conti-ntiotisly to the opei,rttoi.- iii cliarge of said a,@)I)ai-,,tus the direefion aiiclquantilu-V of flow tfi@c)Li@@li the lateril coiinecti-on E ti-iat joins the i-i,,aiia line i),itli the storage tanl@, D at tl-iat i)al-,tic-cil,,ir station. IAThen the ditl:)hragiii F 130

is opei,a,tively connected the s,,)e@ecl reg- to the storage tlink D. I also prefer to artilatino,- cleiic-- 5 tl-ie movel)iert of the clarange a zoiie 1-ieqter J insicle of 'Lll-ie storaae F to the lefl', procl,,iced I)-,T the pas- talik D in close proxii-nitv to the avxilia@y s,i(re of liqli:icl tlirotigii the I.ateral - coii-Liection heater I so as to ea-Li,,-, a. rel,,itivel,.v small E froiii the s-Loi-age tlnl,- into the iiiain line, quiiitity of oil in the @;torige 'L,,i,.ik )) 'uo be 't 0 causes th.@- speecl o@t the pilmp B to 1,)e iqliea'ecl by sai-cl zoiie heatel. Neither tlip, ei-t,asecl autoiiiatic,,illy unl:il eqtii.libi-iiirn is lie,,,ter I iior the zoiie liea'Ler J ,ire reaclied or Lintil the iiiiouiit of oil delivereci reouired to be iii cop-tiiitiolis eveii bv t-lie I)Liii-p B to tlic, s-let;oii A' of the pip- dui@ing tie ,vin'L-ei, iiioiiths, becaillse the ti,,to-ieans for u,.nif3l 9 'Lille leads to tile iioxt sticceeciiiis'Ll 'uio,,i iuttic ii n the r,,,,te o'L delivof tlae svstem eqiia'@s the auailtit,)T O-E oil beiny ery for all of the p-OmT)iP." statiors of tl,.e p ipe iiiie s 3,-@,,teiii r-s,,.ilts Ct tlirou li @L-lie se,,tioii deliver@, n @,,ii ab@,@eiiec oT iiio-,,- er-nent E leadinl@ fi-,oiii the p oceclin.@@ of the of oil througl,, 'Llic later,,,,l coilLecLlo@i ,iyster-i. L III i Oii the ot'@iell 1,,anci i ' I- e -Liet qiia,,- tl-ie, respectii@e iiiiclei, -.o oiidi1 5 t ty ol@ oii i-e,-e@,i-eJ tiii-ou@)-li t],@e. sc-et,@op. @@ oi tioiis. It is tvpo the p;pe line -fi:ciii tli,e pl,'CC@,--,Iiiig statioii or li:ii-id of be,,@'Ler -1 an@L z-)ii,@ lieiler sho-Lild I)e le,@4s tliaii the c,,tiaiititv of oil be;nry T iS ii.-- ecl bi-it ii-i ir@ost siid lieaters delivei,e,,l by the 1D-Limi) B ii-ito the se-'L-,.oii A' Nv,@ill coisist of- s'Leqii- coils to -@,.h;cli s'Lepm of the pi-i)e line that L le,,ids, to t@iie next stic- is s-cpplied fi-oiii the ])oiler 1-1, the eediii(y s'@at;on. tliei-i tle Pioiv througli tli(, I be,',11,,)@ "ler@in illiistr,@@,ted ,ts coiinee'Led c z@ later,,,l con--q2ct@;,On E be Troiii IL-lie s'Lor- in s(@riaci @vith tlio zoiie, liieate,,- 1. Iii soiiie age taii]@ D -1.--@,,to tle li@iel ;@- i c@ise ;.nstances it be necess.-,i.-y to provide th,e pressure in the 1,1,tei-al connectioll E t,,t the -Lne,@iiis fc)i- h(,at-iii(,- t',,ie oil iii the !Llter,@il coi-tinlet of the pressure line 2 ivould be h@(,Yher iie-etioiis le,,tdil-.-- 'ro@ i 'he j-, iiii I:ne to tbc, . 1 - 2@5 tii-an the pi@esstii-e in @,iid 1,@itel@al connectioii tiiii@s, ii-,d tliere-l@oi-e iii T-4'io-iii-e 1, I at tl-ie inlet to the ress-urp- line 1, a cl tlie li,@,ve ill-tis(rated a cievice I' ai,raiao-e,.l p , ii @n cli,tphragm F ivoulcl be cleflected to the riglit, i-,i t'@r,e l@@,teril (-@onnec'uion-F@, bet-weei-i the in-@tid tlius IL-ie indicator to the lefi@- -,,@id t'lic beatei- 1. I ,incl also caul;siiig the spc-ed o@f - 1@lie i-iotoi, C --'i, Fi,,-iii-c- 2, I liave ilitistrated anot'iler -lie 1, teral 5 1--o be decreasecl ,iutoniatically, -Lint;l eqtiilib- loi-iti of mv inveiitio,.i, t t rium i@, ig,@iiii i@eachecl or Lintl"I tl,.-, amoi,,nt conrectio-.i bet-weeii tl-i@e stor,-,-e tanlc D (f oil delivere(I @y the pump;i,@g -tppqratit.,@ and the sectioii A of pipe Iiiie tii,-,'u- le,Lcls to ,it this partieul,,ir st,,ltion to the siieceediii@@@ the puinp B is provicl,@d ivitil @l piston 10 st.at-ioii of the svsteii@i equals the qii@tntity @f i-eciprocatiiigl@, iiioulited iii a c-@,J'- Iiider 11 oil Tece;ved at sai-cl str@IL-;.on from the pre-,ecl- - ,Pd ec,,-Liipped ivith an oi:ifice 12. The pistoii 30( jng s 4- atioii of tlle syste,,-n. I-.r the liter,,Ll 10 niay be connected eitlier iv;tlil tlle movconp.ection E is uiiusti,,ill-,T short it iiiay 1)(, al)le eleiiioiit of an ii-idicatiia,,, device, '[or necessary to rovici.e sp;d coiinection 7@itl-i exaiiiple, ivi@Lh an iiidi,@ator i-ieedle 3, or it p a coiistrictive iqclica'ued bv 'uhe re'Ler- ii,,ay be coniiecte-d iiith t speccl governil'.0- clev, ,ce 5 ,issoci@,,teci iiitli 4ul-le i-iiotor D sod. ence el-if-,rLeter x, to inei-ease the pressuze dif@.'ere-iitial iii that p,,irt of the lateral Iiiie to automatictllllt re@@ula'e the speed of for ,iiiy @@ive,,i rate o-,-e floiv. pump B. In the foriii of in3, iiiv-,ji'Llic-ii T O'@"I (-,I. tliil- erli,,Ie oil tll"lt is of -,L vis- s't,lowil iTi Fi-'ure 2 tlib pi@,@'ton 10 is Opel-,i@1-1 u t, cous natiire b-. liaiidl--,,! by the system tively coiiiiected -witli the -1.,@-i-licator iie(,dle ..n col(,l ,,,-e,,thei, li atiiag device G, iii(@ i- 3, i@,h@ich, ii, ttirn, is con.-tecteci by me,-iis of cated diagi-a,.-.aiii,,i,;cally. ;s arraii,)-e,- l, iii the a Iiilk 6a With the speeci coiltrolliiig @levi.ce 5 of the motor C, said rocl 6a M"tlp- in proximitv to 't,,I,:e pumi) B. is t sli,-@\17ii in Fi---tii-e sticl 1-toati-iio, deaice ,isii- portion 6b to iihich stabili 'ng spriiigs E) z' ire connected. V,@fh-en the oil flol-vs throu(-Ii allv co,,isistin@,- oT ,t co@.1 to A-hich sL-e@,in is @50 re sui@plilecl froiii a L-oi-lor H. Stic'@i hettitig the 1,,tteral connection E' in o e di etion dei,-ices qi,e iii coriimoii iise, I)tit in the co-t-i- for i-,istpi-ice, from the lij-te A tovent.ion@il @)ipc@ Iiiie )f the icinc,, i,,i @vards tli,,@ storto-e t,anl@ D tltle i-,is-Loii 10 iv,hich tile iii'Leri-pecL,,,Ite st@it;lo-,ns ,@re e@qiiipp-d @vill move tliiis causii-i(- the inivit,li stol-ii@@@-)."@ that -.cloat o-,i the dic,,ttor i-ieedle 3 to to t'tie i,;glit, f,,nd iiiie adclitioii@,,,l lic,.ati-T-iol, clevices --ce ,ilso thus indicate tl-iat 'he speed of the puiiip I)Ioy,ed to ii-iilrita, tl-,e eetii,e )t;tx, o B shotilcl be iner,-,tsed if the pistoii 10 is oil @-i 41-1,io in a lie,,,,tecl i-i-ierely associ,,ite(I ANItl-l -,II iilclic,-,ti.ii(Y device. 2@, OP@e Ollie,--t O@',' 2-ti-@7 @DA-0@ltiO,-l ;S tO If the piston 10 is -.Ssociate,-l Nvill-li @,i si)eed the the eiitir(,, qtiaiitity controllii-ig device 5, as hereiii sh,),,vn, tlle o i)- timp ii,ill I)c iiierea@cl ,),iitoeic l,, iiitezp.-le- spood of tll iiiati,-,ally said pistoii moites tjic, , stor- Tili n c II ltioii , ou cortiiitie iint I eqt ii lbj-- iim s ro,-@ebeCL or Iiiiti'l the flow la4- ;.I.iai-Y li@--,ating Otev-lce T tiiarged tlii,olio-h the @eral coiinectioia E' cea,ses, ii the coniitction E at a poiiit i,;a proxiii'lit'y @vlien the stabilizing springs Avill retlirn the 130 c, o o@, oil iii. clit'Llt-,e @;ta'Llo-,i !lo this encl I tl,,e latpr,,,! conyiecti.oti E D the @iiain Iiie (@5 12,5