2 1,705,969 cii(-Is o-i' 'ulte watei- tlibc,, foi'iiiiiig eleitieiit p bent I)refei,ably before it is sha ed into the bo:@, 'uo T-orm attaching portions 6, the at'aclliii,@@ I)ortioiis having valleys 7 on the u -@vhose bottonis are coe--tep-sive witli tlt(, bottoiiis (If 'u-he 1)ositioniig v@ille@7s 3. 'I'lie sides of the v,,Llleys 7 are shown ts -.facing in aii opposite direct@lon -'L'rom @@-he sides of tiie valleys 3. Acljoi-ning sectio_ns "iile 110111-leeted together at their f-i,oy-i.t re,,ti@ oncls by their attachidg ,-)o,-@tioi'ls 6, prefe,,ablv the sep,,iiat,oi@s qre pl@lced ii-i positioji,. clesii,ccl it)etliocl iii,,,Iy I)e for i,iiis purt)ose so loiig ,i,s (-,he lii'ls of the ,itt,@chiiig i)o 0 rtio--,Is C) f on,,, seetioii [iL iiito the vtlleys 7 oi@ tb.o I?ortio-ns 6 of' the see'tloiis, the @itt,,ichip-g portions being joi@i-,cl prefer@Lbly by solder. This constructlo--ti, as shoAAii best iii Fig. 11, pro-,71d'es: a ivar,-er sp,,ico adjoinji-ig section,s) tl-ie Ilills ].)i-ocllLco(-'i by tlii@ v,tlleys 3 be-Ing staggerecl on tll-e op-)osi[7, walls of the -w,,),ter space, tlioi-eby - pi-oiding Ler of 1,,trge w@). t torttious p,,tth for the ter tiirbulence. To inereqse heqt racli,,,,@;on or heat concl.ije.tion to the air from the racl,-,,,ttor the e)-leeL-li,ve tre,,t of e,,tch section is iiicj-,eased by provididg each seeiion with a sep,,irator. Oii-e, foi-M Of sepai,ator is showli in r4 i.,-,s. 2, 3, 4, -,iid 5. --Refori-iiig to these figures, this pai-tictilar type of sep,-,ra',or is a double separatoi-, th,.tt is, is in aOe up o'l coi-npleme,it,@@i@y sec'L@i ol-is 14 ,tncl. 15 fillted togetlie. to -L'orin a sep@ivator 16 as sliown bestin Fig.3 Epch section coiiiprises a sheet of inateri,,tl. beiit to T-.orm alternate sp,),co@zones A aii(I r,,tcliati-,ig zoiies B. Each sl-.)acel. ZOIIC A CorripriSeS ',t Zi@,1,7,ag portion 17 4,) foi-iiiiingvall,eyslSontl-lei,@-tF,,,icloor idclvihi@ch coinplem(,,,nl,,,,..i-y s(,Ctio--q. l@llell i! it' v,tllc@,y.18]i,is,,tl)ortiojio-L rsi(lel 9ex4-en(Iiii(r -ri-olli tile I-)Ottolll of the vlllll,(@v to tlic, to]) thel-(',- 0 r- (@tlt OLit, 1,11(1 11)0,llt @1,1'01,ID@t b,)Lllolli to the ,t;-) )tits o,-side ",z,c', , i i-I ). (,,o 20. T'ti@e si-ioet 'IS t'iso clilu@ idioin zl,,iie,, so eaeh c)- z,),,ie B eol,,I)r' L@;es a zigz oi-ti,oli -11 i7.illoys 2,2 oii ti-ie o-,Ilt@ @-, P -)st, 50 SI, ,@l(, 1).av@ii.,,r tlie;-i@ botto s glil iptially co t e Vo bottoiiis o-l. tli(, @,,Illeys IS iii, ilic@ si-,acei- z(@@i,.,s A. Tt sliotil.d.))e iinclerstood th,,.t'u- th@'s sel),,i.i@atoiwitli il-ic qiiiiilar sep.-ti@atoir secti,@)II intei-fittillg, tl,)Crowltli i@,i ,,uch iqanneil l,liat LIIC pOsi.,ui.oliinol, iiieinbei-s 20 of the assemI)le,cl sel-),,,i-ator j)-@-oject oittivti-dly aiid alt(,@rAlsotlie projectiiig valleys 22 iii the c,o of the compl(.,i-aci)tai.-y section ai.-e stagge3-,ed with respect to etch otlier, th.'s constructioii belp-g clearly shown in Fig. 3. e It, will e@sily be seen that wheii th two eoml,)Iemen'ar@ sections 14 and 15 are assem65 bled to form the two part separator 16, -the sep,,ti-atoi@ cati be easily positioited I)y slidiii(y the separator ijito the sp,,tee bet-,veen the water ti-ibes, its positioning members 26 sliding into the ositioi-iin,u xtalleys 3 thereof as h p s own in @IAi,gs. 3, 9 and 10. 70 P@,eferring now to Figs. 7 a,iid 8, a radiator section is shown in which a diff--,rent Torill 6f sepgi@ator is used, the Nvat-,r tubes, however, beii.)-g the stine as in the ilrst coiisti,uetioil. TI-te sepirttor 30 in this c-@qse is formed of ,t 75 sin@,yle sheet of good co --ndticti-,@,'Y atei-ial siieh ,@ nl @s coppei- lithich i,,, bent to f6riTi @,L zigzag portiort 31 Nvith t-"7o-ply rettirti-beiit, folds 82 ex-teiicliii(, oUtIV@lr@IJIT froin the t, ops Of the on (,,ne side and theii on the 80 11 i ]@IS v@l otb.ei- to To---in positioiiiiig iiiembers. Th6se 1,,ositioninpl- niG,-- knbells, a-.id III -t',@)et the eritire tor, extends siibst,,tnti-ftll.y the entire =fi-oiili front to re@ir O'L the r,adiator sec'io -L n. The posit;-Oniiio: men-ibers 32 are ,idapt- 85 od to be positioned Nvi'Uhi 'n the positionln(, v,,,illeys 3 andc@eciired lhei-eiii as by solclering. To incret,@e the oir tiirbiilence in either o'L llie types of s,- par,,,,tors holes iiiay be punched in the I)osition4@ng members or in aiiy part of 90 tbe, seperqtol'S. Iii the construction first described it will be seei@.tliattlie separator whichis i-nade tip of -itple,,iie -y sections is so iilhde t liat 'cwo coi ntar -ily no part thereof wh.,-re-, 95 -,Ii.ere is substantia thei,e is clouble thicknesses of- inet,-LI. The o@-'Iy pai-ts in Whi.ch a double thicki).ess of w-et,,,l occurs are the portions ol the sides 19 of the spacer 7@oiies vrli.ich h,,,,Ve iot beei-i cut t i A v, Y 0 f I 'i: @ 0 s i '@ i 0 -i a i c,,,,@ i 1,, (@, v s A .1, i c h loo can be ma 'e as narrow as desired. Thi@. coiiCL 9truction restilts in IONIV Cost 0-,L@ Material. FLirthei,inore, diie I-o tlio sbal,)O of the sepa1.,.) tor ,t n-ii,-,imuin nat Liral t, i.r t-ut,@- bulence is obwhich is ve desi ]@y i@,:),ble, result,ing in 105 grealer ciT-Leiency of the r,),diatoi-. Al.qo positioniiig meiy.@1)(,i-s qile pi (,d 'Villileli .9(@l-f-1)(Sitiollil)g ill tile positi(,,-)ill(,- valleys of t-,I)o Nvatei'uiibe cojistrliet'oii L@ro asseir@bly 110 i, N,,(,,i,y easy gt,,iiidp6int. The 1,)rovisi-oll of cxteiiding th(, sep,,ti-ator the entii-e clepth of th-, seet'lon restilts in; hi@@)I-i i.@adiatiori abilit)r In the al@t-,ei-ili'uive construction the self-poa SillioD.ipg fe ture of the sel,)arltor between 115 tl water 1-tibe is .tlso I)ros@nt, aiid ,Iso th 10 s T-.eatLire-, of n-iaximtim i,,,idittion of aii- (Itte to 4@lic gepai,,t,toiexteiicli, the entirc, cl @ig eptli. of the sectioii. AlThile I h,@ive showii a-ad described and hq,ve 120 poiiited out in the tiinexed clain-is cer'cain Tiovel T'ei'uures of lily initei-ition, it Ivi7ill be -Liiiderstoocl that variousomissions, substitiltioiis ,tiid changes in the --Forms tiid cletails of the deltice illusti-@tted'and in i-L@S operation may 125 be inide by thos(,, skilled iii the art witholit cleparting froin the spii-it of iny invention. II,,tving described my inventioii, I claiiu. 1. A do-tible strip sel)arator having coniplon-ientary parts,@ eac,@ part compri.sino-- a ISO

sheet bent to fori-yi zones, each zone comprisiiig tt zio-zag portion formiiig valleys oii one side' ea@h valley having a portion cut aiid bent about its bottom to the other side to form a positioning inembei-, sdid parts suppleinenting each other to form a separator having it@ positioning meiuber,s extending outwardly. 2. A dotible strip separator baving com10 pleiiientary parts, each part coinprising a sheet bent to form alter'nate sp,,icer zones and radiating zones, said spacer zones each comprisino- a zio,zao- portion fori-iiilig valleys on 1: one side, positioning iilei-iibers secured to said 1,3 zigzag poi,tion, s,,tid sheet being fori-ned so that each radiating- zone coinprises a zigzag pol-tion formin- valleys on the other side having 'heir bottoll'is co-incident with said first valleys, said parts supplementing each 20 other to form a separator having its positioning members extending oltitwardlv. 3. A separator comprising a sheet beilt to forni alternate spacer zones and radiating .zone@3, said spacei- zones each coi-npi-ising a 25 zigzag portion forming valleys on one side, each valley having a portion etit and bent abolit its bottom to the othei- -,ide to foriii a positionin(y member, said sheet being cut between said zones so that each radiating zone 30 comprises a zigzag portion forming vtlleys 6n the said other side having their bottoiiis co-incident with SoLid first valleys. 4. A double strip separator li@iving coiiiplement,,iry parts, each part comprising a sheet bent to form alternate, spacer zones ,tnd racli,,itinp,, zones, said spacer zones each comprising a zigzag portion forming hills ancl valleys, eacli valleyhaving a portion cut and be,nt about its bottom to form,t'positionin40 member, said sheet being cut between said zones so that each i@adiatin(y zone coinprises a zigzag portion f6rii'ling val'e3T9 liaviiio- their bottoiiis co-inciderit with the bottoms of said f-irst valle@,s, said )arts suppleiiientin eacb ,i5 other to foriii a separator havino, zio-za-, poi,tions with positionin(y members extending laterally outward.ly from the top of tho hills alternatelv on 6ne side and on the otlier. 5. A ra iator section coinprising ,t water 5o tiibe foritiing elemeiat, tl-ie walls of stid element being bent to form positioning valleys extending substantially the depth of said seetion, and a double strip separator having complementary parts, each-part comprisino- a sheet bent to form alternate spacer zones and radiating zones, said spacer zones eacli comprising @t zigzag ortion forming hills ,tnd valleys, each valley havino, a portion cut and bent about its bottom to Torm a positioning 1,705,969 3 memb er, said sheet being clit between said 60 zones so that each radiating zone comprises a zigzag 1:)ortion forining v,,tlleys haviiig their bottom s co-incident with the bottoms of said first valleys, s,,iid parts supplementing each other to forin a separ-,Ltor having a central 65 zigzag portiod. with positionino- members extendin o; later,,illy outwardly from the top of the hills altei-nately on one side and on the othei.-, said positioning illeilibers being positioned in said @I)ositioning @ valleys. 70 6. A radiator section comprising @i water tube formin element, the walls of said ele1-nent being bent to form positioii,ing v@illeys extendin g stibstantially the depth of said section, and A double strip separator havid 75 coiiiplem eritary pirts, each part coniprising a sheet bent io form zones, each zone comprisi-ng a zigzag pc)rtioii forining hills and valleys, each valley 1-iftving a portion clit and bent about its bottom to foriii a positioning 80 meiiiber said. parts supplen-ienting each other to foriii a separ@itor having ,t central zilyzag I)oi.tion with positioning meiilbers extenaing laterallv outwirdly froiri tl-ie top of the hills ,ilteriiiiei y oil one side and on the other, said 85 posi.tioni ng JiLiembers being positioned in said Positioni ng valleys. , 7. A radiator section comprisin(y a water tube formiiig element, the walls of said ele@i-nent being bent to form positionino, v,,tlley@ 90 in one side extending substantially the deptli of said section, sftid walls beitig bent to forin second valleys in said side extendin, at right aiigles to s,,iid positioning valleys, the matei-ial between all slid valleys foi-min- hills on 05 the inside, the front and rear ends of sqid element being bent to forin attael-iing I portions, said -attaching poi,tions htving vallei,s whose bottoi-as are co-iiicideiit with the bottoms of said positioning valleys. 100 8. A racliator section coliiprising a water tube foi@itiing element, the walls of said eleiiieiit being bent to form positioning valleys in one side extendiiig stibstantially the depth. of said section, said walls being bent to form 105 secoiid valleys in s,,tid side extending at aiitngle to said positioning valleys, the material between all said valleys forininly hills, and means for s(,Turing s,,tid element to an adjoiniiig section, 6iad ,L separatoi- b.aving projec- lio tions positioned in said positioning valleys,, said positioniiig v,,tlleys being sLibsttiiti@Lily uiiobstructed so @tli,,tt said separator iii ay be easily slid into position. in testimony whereof I liave lierei-iilto set 115 my hand. CHARLES A. ERICKSON.

Pateiited Mar. 19, 1929. l@705,9969 UNITED STAT@ES P,ATENT OFFICE. CHARLES A. ERICKSON, OF LAKE. WOOD, OHIO. RADIATOR CORE. A@plication filed August 24, 1925. Serial No. 51,904. The invention relates to r,@tdiators'for cooling liquids aild DartieLilarlv to slich as are -utse(-l for coolii-ig the water 6r otlier liqlll(l used to cool illIL-,ernal combusti6n eng)-ines. The inventi6n relates more specifically to a radiator sectioii construction which has@ a n-iaximum turbulence for.both the air and coolinvention each, ing liquid Acco@ding to the section iihich com-prises a water tube forinio iilg element and a separator is made of thi-n sheet iiaetal of single thielmess slibstantially throualio-Lit, this - resul'ing in lioht.weight, 1.6w cost of,material ancl maximum radiation pel@ tinit of weioht. The water,tube foi-miiig ele15 I-nerit has @lositio@ing.valleys ancl tl-ie separator hts positioning members enabling it to be eas'-,ly and cheaply positio@ied, duriiig m,,iiiufact-Lire. The featui,e of cag@7 tssembl3T iS 0l)- f t tained without sacrificin-, any o _Ile ttirb-Li20 lellce p@ol:)erties either for the ait or cooling liquid or an@ of the other desirable fec%tures -which should be present in a radi-ator section. Various other objects and adv@ntaaes o-r 25 the invention will be obvious from the following particular description of one fotm of con@striietion en-ib6dying my invention or f rom aii inspection of the accoiyipaiiying drawin(,Ys , ,-tnd the invention also onsisis in t . cer aiii new c ,,o ancl n ovel featiires of c6nstruction and coiii binatioi,is of parts hereina'Lter set forth aiid clainied. iii the accom anying @di-awings I hav.e p slio,,i,n for piirposes of ilIListration one foi-iii 35 O-L c6nstrtiction ivitli certain moclifications thereof emboclying the invention in whichFig- I is ,tn elevatioii of olie forn-i of radiator to Nvhich the inventio-n may be applied; Fig. 2 is a perspectiv of a referred sep,,tp rator construction. Fig. i) is a front elev,,).,tion of ,t racliator sectioii according to the invention shoNvin6, both the NNTater tube forminp-- element and preferred separ-,Ltor 45 ri igs. 4 ancl 5 are sections take-n- on the lines, 4-4, aiid 5-5, respectiN7elyr, of Fig. 2 showing det,iils of constriietion of the ref r p er e,d sep -Li -,ttor; on of the-water ttib(@ Fig. 6 is -,t side eleval-il 5o fori-niiig elementFig. 7 is a perspective of tiiother form of sep,.trator; Fig@ 8 is .9, fro'nt view of P. radiatoi- f3ee0,0 @to, rdi-D I f@, the showi:Ug fho Wa't,-@r tube forli:iiiio, elemeiii@ with the see- 55 ond f-orm of separator in place; Figs. 9 and@-10 are sections tal@en on the li --L-ies 9 - 9 and 10- 10 i@espectivell,, of Fig; 6 detpils of constriiction illtistratihcy cl t, Ilow eltllclr of T,IICI L.371)eS ]n tl-,e 60 AlTa te@ e'eii-ient; ai-,d Fig . 11 is v 0 a tront ele ,ttioii f t-v@,o @djoiiiiiig sec@tions sli.o-@ving li6w they tre connected to(,,e tl-ier --nci ho-@v provisioii i-s niacle for the wa'tlor sptee bet-vveen 'Lhem. 65 Iii - the follom,ing desci-iption and in the ',)e icl.e@,itifi,,@d biT s-pecific n,,inies i!or copvenience, but, th-37 ari inteinded to be @is gener-ic in their application to sildilar ,:),tr'6s @as tli--- ai@t -,vill permit. 70 Th e vadittor sections Ire made tip of sheets OT. 1netal whi-ch ai-e corrugated, bent and cut in t novel m,@ip-ner according to the invention. Wlienever a, part of a sheet of iiietal is coi-iugated or formed in zigztg shape it will 75 be seen that valleys ai-e formed 6n each side) tilos e OR OlLe side b6iD@@y tagcrered relativ ly @:1 S - - e t,o those oii the oth on one s. er, a vall,ey ide pi.-oducino,ahill.ontl@eother. Poreaseinde@e@iption irl- the folloivino- the shal)es o-f 'clie so I)art@ are describecl in terins o,-f eitli6r valleys or hills on a particulai- side, it beino@ impl.ied tilat e tli valle il n n s y 6r Ili' 1 6 o e icle calises a n tl-le other ide. Itill or, valley r6spectively o s no-@v to ttie (ii,,iAvin,y Fio- lsi) I n @ -' OAV'@' 85 ne form of radi,,ttor to whiel-i tl-ie inventioii iuay be al)plied. The,radiator is made up of sections, each secti6n coinp . rising a water tube elemeiit and a sei),tr,,ttor as shown iii Figs. 3 and S. Referri,.io- to Fio,s. 2 3 4,,5, 6, 9 oo and 10,, the water tube -Loi-i-ning elemen' I consists o' ;-,@ geiierally rectaiiigtilar bok forined bl, bendirio. a sti-ip of o-oocl heat condticting iiiiterial such as copp(,r to foI.n-, a box with opei,@ front and.back ends, the top and bottom pref-- 95 ei-,ibly being iiari-ower than the sicles. The encls o-t-' the sti-id ai-e fastened t-,ogethel,l III ai-@y desirable iiianii,ei, is by me-,ns of t solderecl oi,ei-lapping joint 2. The n-iateria,l is bent or corrtigtted prefpr,,)bly before, it is bent i,oo tnt-o b6x 8hape to forin positioniiig valleys 3 on the inside or air side extending slibstaiitially the entij@e deptli of tlie section, tha@ is ft.om front to rear. The iiiatei-ial is also beiit to form s6cond valley 4 in the iiiside:ex10 1 5 'uendingpi,eforablyatrio-htaiiglestothefirst valleys, -[lie inat@:vial ]Tetwo,@ii the @-Viilleys " 1 , @ th d - - ft @ t a . a@ @fo rming.h,,,Il@, e ip;q). o,, @iO ti,