1,716@391 associated with the- furiiice -@vhetber at one part ol'ilv or It moi,e thaiil oile I)art. For iiistaiiee iii the case of a fulinace heated by I producer c-,as ivhich,i-equires pre-heatino,, one zn i) or @nore I gqs regenerators becoiiile a 1:),,trt of tl-ie iiistallation, each requirin(y its ciiider -1 poel@:et which inay be coiistructed to serve -,ts a b,,tth iii the iiianiaer desei-ibed. It @vill be seei that the tap-lioles iii tlig, 10 ,ide ivalls of the -@rtii-ii ace leadiiig to the di-Lets I aiid tl,ci dooi,s 7?7, pi-ovided ii the opposite Nvall:@fc,]-,- tpl,)Iyjiig tl-i6 taiiipino- rod are, T-oi-iiied iii laterally COI'Istricted portions of tlie, ftii-ilace i-icar the two e@ids%of the lattcr. 15 in tlitis deser'bed the ni iL,, e of tl).,Tlav g t r said iiincitioi-i and the best@ nie@iiis @l Iciioiv o-'L@ elltl@,]@, . ijo- tlio saiiie into practical :effect I Yi -@i @I LI i. A nietallur@ical fl-iril,,tce lia-%,ii-la -i x2( 'Iliiar@,l 1,)atli associated therewitli , meaiis for coiiti-c)llinothe flow of liqtiid frolii the inaiii heai,tli to -,,-,id aiixiliai-y bath ap-d m, --,"or h(,,,,itiiig said bath I)y -NN,aste f,,irnae.- gases. 2. A,revei@sible nietallurgic,,il ftii,iilee h,,ivilig aii iuxili,ary bat,li at eacli el'id tliereof aiid c6i-itroll,,,,bly coiinected with the iiiaill liearth OT 9,11cl fullilILee. 3.@ A revoi,sible re- lierat-'ve steel Tui@,-Pace @le liavii-ig se,paj-,,,ite fi-on-i its heai-tll and at elach P, 0 end there6f a. blith f or meltiiag iiietal or keei)liig itietil i-iiolten. said b,.tths beilio- li - ,t(,d by Nvaste o-,,,ses 1-'i,om the furiiace lie,,trth. 4. 2cj,-ietallti L-(Yic,41 fi-irii,,ice liaviiig aii @alixa -itli and posiilial-y batli associ ted theieai 3@5 tioiied for '@iecitii-io-,by the w,,iste Tui-iiace gases, said auxi:liary bath haiina- a castino, nozzle lincl@stoii)er therefor, ,tnd clamper meal-is for screeiiiiig said stopper from the n-iaiii portion of the auxiliary bath., 5. A iiietalliii@(,ical furiiace ba-ving aii aux- 40 ilialily batli a-- ,soci.ated tl-yereivith and positi-oiied foi@ lie,,ttii-i(v by the Nv,,iste f iirnace gases, zn s-i-i(I bttli liaving a lateral. exteiisioii., and a cab'L- 'Ing iiozzle, aild stopper ii-i said lateral extensioii. 45 6. -z',- i-e eiieritil7e reversible nietalitii-,-ic,,tl 9 f,,.,@i,nace h,,tvii-ig suppleiiielitii-y i-eceptacles a-,socill@tod tliei@ewith al'id coiitioll,,,bly coniie,,@ted i,,,ith the iiiaiii heai-tlll, saici supplementat,y i@ecel)i:acles flues foi- ivtiste, lielt- 50 ii-ig geses the -'Iui-.iiace aiid beill(r pi,ovieted ivltli n.,,c,,,iDs foi@ poui-id(y liquid tliereT-i,olil. 7. A i,eo-eile,@@itive metalliti-gi.cal fiiriiace liii,iiio- a it-i,,ii7i ar,,d an aiixili@,ii-y lieartl-i r) I)e"lte@f'bv N-vaste pi@@ocl@,icts of coii-lbustion f i-om s -niiio -i the ii:ltiii lieai-ti-i, meiii foi-i - ai - ,xtei@lial "I c'iia ii.el coniiecting --,t'd e@irt s Iiiid rneaiis foifloii7ii,,(Y rii, ill re,,orse direc+,ioi-is@ alter.- Ti-,it(,Iy ov-,], said ii(@artbs. 60 S. A illel-,illurgical fi.,,riiae-, li a v i iig a iii @t i ii he i r th @,, .'I -IL @,i ii a7, i x p T I i a, @ -,tli @it eacii ei-id thel,eof lieated b3, vN7aste pi,odiicts oT coiiibusti.oii i:,om t e :iiiqin lieai@tli, ,tiid iiieaiis foi@ floiviiag air in revei-se directions 65 alterr@ately over said hearths. 9,. A iiietalli.ii@gical fti i,iiace h,-,viiig assoeiite(I @L sul)plenieiit,,iry i-ecc@ldtacle ilo@,,Miiig a poi-ti.oi-i of P, fllic foi- Nvaste heatiiig ),zises tli-I iiid iiieans POS'- 70 tioned ft,oiii the e--@tei-ior of siid furnace for controlliiig flOIA,- of liquid there-from to s,,Iicl recepttel said .-ecei)[acle i-i 0 bei o- ri-o-k,ided witli @iiaeaiiq for pourii'lg liqtiid tlierefrom. Iii testiiiionv ijhereof I h,@ve siaiied my 75 iiaine to this SI)ecifie,,ition-. BENJAMIN TALBOT.

Patented June II.. 1929. IP7162391 UNITED STATES PATENT OFFICE.' TALBOT, OF !Y-T-,DDLESERO-UG@'ll, ENGLAND. 131ETALL-LT--.RGICAL FURNACE. A-,oplicatio'n filed Ja--i,,i,,Lry 31, 1,C25, Serial No. 51981, and iii t,,reat Britaiii April 24,1924. This -I-nvciitioii relates to iiie'L:allurgic,,tl 'Ltirnaces ,ind particulti-Ity. to ftiriiaces of larf,ye Cli.p@teit@, foi- tli(,, ,iiinU'Lacl.-LI-L-e o'L ii-o-@i or s'Lecl, (T tile fi@@ceci or of tl-ie oi@ si(le-till@iiig types, ird Aibether revergible or Uiiifl OIV. Oiie -)bject of tlif-, inve-i-i'tion ill@ to oby'lite tl,@c II ccssit e of@ t,,tppiiig tlle inet@,tl - fi,o,.--q fi:Li-iiace ipto a sel)"I,rate la@Lle. I s 1),,,, p t 0 -f 10 Anotlier object 's to provide a the ftii'nice strtie'LltLre P,-ieaias Ai,l-iei.@eby tlio AAr,,).ste, -rliriiace -ases m,,iy be uti I' -cl to p c,- iz, r h-@it or inell piy iron, o-f deoxidizers such as forro-iiiai-io,aA-)ese, spiegel or s'licon pr lor .@:1 1 5 @Lo tlic,,ii, aeiiiiix'utire the iiiaii-i char(-'le of the flirnpce. Bo'L-li these objects qrc, a(@li,@evecl by conL@' u,-t' II (y Pzr , I , tlio, furnte AY, itli oii,- or more b.-@tlis OLe't-acliaf-)Ie,--@rci-n the m-,tir. flillialee 20 v,,-Iiieli al-e. iii - (--Iii-ect -,,ommuiiicati on @,,,itli tl-ie (,,qs s,)a(@e of the sai-d -1 I)y t@ titerefi@oiii, aict I ,ieate@- i I e -w, Li- s'L- e (I.,@i s e E; coi)ti-ol'iablv@ colip-eelled v@i"-Ih tiie L@?,- rL!i so that iiio'te i.@ie'al can be pbur d @L I n e ol., 2@5 'L-a,,-,ped fi-,oiii the ilieartl-i o--F the a-.ic.1 stoi,eci fo,@- ,t P,,,r;@'od o'L 'L'Iiiie befoi@e I)c,-InL@ i)o-Li,@,ec! fi:O,.n 'Lhe b-ath. '-Il,ese tilict otlie,-:,6bj,-,Cts o' the i-,iveii[ion lr,)o specificall@, desci-ibed NAi4c-h rel30 -,rellec to the acc6mpLpying iyhicli illtis'L,r,t4,-e tiltii@c,- 'Lurile@ces 01 4@lic @'uypo, bitt it i iin(lerstood tii,,tt L-rc@ 1-)y YTL@Y o-i' '11ILis@Lratioii i ill'@7,.'I!'L-ioD is -ilot t6 be a'@l(L :1,5 tzl,' 3@('s@Ll@ictecl to 'Ltiry@ili(@(IS of tlle t",' ])e thereiii 'tii t"-.ese drav,,Ii@,Y,-@ I a (I 2 i.-e zi loiin a ,ioii ai7i('L.a sec-,Lional pl,,Lll 11(2@-'-@)OClui",elv ol ti,, 6iid-tiltin(@- iriti-,iace, iiiad saiiie oia I n F' se, of e --3. of nace of tl)e, di,anviiigs Gxce, a 11 -ix d. Fi(,c,. 4, 5 @tnd 6 are s;.mil r vie-ws' to th6 s pports, wliiel@ ai,@ f e o l-' as, i (I e -i I t, if, ti@p-,tee) Fi(T. 6 beiii(Y a -,eeo-f t'lie joiiit fis 5tiitI' T- - rig. 4. a tioll 0-,'- lyi@3 6-6 o - it)le foi@ fixed -fiirii,,ice altlioticli in th,,t@u,cas(,, 4- -S. 1-3 - tl co strtic t illovable joiiit is not, ab@oliitely @ qi-i' ed, Fi( 10 -1, @ ill ge;ier, n e ir as ioo 45 tio, i of '-he l@iioivii type, being tl.o is liot tiltecl, exce@'u for coilvei-i:.iirnace s to rocl@ oia:tl - roller betrii)f, a (Fi 0, ielIC6 of r litil e 11 c-.iioviiig or changing tlle b@ 1) ii-liei-i til@ino, is i@eciuij:ed, and Pred at e@ich Wlien deoxi dizers ire chargecl into the bath f-I all e r or, I - s or oil -pe, t-liey iiialt be 'it oC!tice(I tilii,oii@ li the dooi-s by C8!@:e oven ga ")!-,.Iecl tlirou.?@ii btiri-iers b aiid air fro-@ll a ie- o, p,.@efei,,),bly beTo,@!e the et, i '@r ri-edi i r , ' a l ' S a i i g l e 0 5 , These 'uo the batli, so tli@it they ill@t be preheatecl oly 'It.ie a y -Li i e i s -@iO, @Lii, duc'Ls coiiiipiiTiic,.-@te -vvith a bath iiiel,ed. The bath 01, ba-ths e ma be ti.l'z d e'll7iiieh is ef,@rried by the struc'uure of the for iiLieltiii<,)-, I)y the heat b'i the iv,,tste fLirii,,tce iurn,-,c(,, 1),,it can be removecl Avhen necessaI (yages, el-i@ti-ges of pig-ii-6n whiel-i ivlieil iieltfoi- rep,,tir, and repl,,,,ced ' or can be exchan,-@ed @ul!ai-isfei-red by@i-iieaiis of laclie@ to tilo i@io 55 for t i-.LeAN, one. At one'encl this bath is co--..ii-@iaiii ch,,t,,@ze iii the furnaep, 1-.eartia. nected by it joint in ven'ical plan-, at TliLe inveiitioli i8 iiot limitecl to a, sin(,Ie batli - fight ano-les to the ax@is of tiltino- so as to pe riiiit t@l'is 1-,iolTellie@it Avith aii i)ip e 01@ I the like g @ (Fi,s. 2 aiid 3) leadino,- to the i-eAvhicli is not silo-,vii since, its 0011- 60 ,ti-l-,iilyeiiil-liit are of the usual icip-cl. At the other end 6f tl-ie bath e is i discliti,(-e @,,)o-cit 16 Avhich is iioi-in@tlly tiiiiped oraji(,t 6iie oi- inore teci in'. noz7,les i each n inally closcd by ,t stoi3pei- 76. The eoiiimlini- 65 Cal -ion bctiaeen the bath'aiid 'ulie hearth of the fui-iiae(-, is a diiel 7 leaclino, froin @l Avf-iie'ii inay iloie be closed by tamping by i tool illi@erted tl-i,.-o-Lio-h door qi,,. Th e-@ip-tal opem, tion Of 'L'he f-urnai--e 'need 7o e 9 i,6t be describ6d as it is well l@:iio,,vn. When It -is desire,-L to YvitlidraAv inolten metal froin it, it 'I@s 'L-'llterl in t.L-e clesired directioii aild the t,,iiii)ino- is reiiioved froni the dtict l@'at th e-ncl of- the ftirnace; metal is al- 76 loA,,Tec[ ',o f-loiv 'ulirou(-'-Il:the duct into the batli e. the stopl.)i-,r k be-iiio- iii pld66'a-.id flie spo-u[@ /, ', LI in a, then be, ly tar@ipecl. The et,.tl M v t cci @ ,,ed oi, potl,,iecl as tlio,,igh the,,bath were aa e. 80 I ('11 The slide daiaiper qz@in a 1,-,teral e.-Ktensio-q (f- the batli e is no,,rn,@lly i@aised it is lowered o cut of,' radi,-tuloi-i fr6ii@ the hot bdth when tlle P-O,-zle s'L@ol)p(@7-,s are bein(, p-Lit, in place; The sicle-tiltiii@4 furnao-- shown in Fio's. @5 45 @,ind 6 is similarly cons@.ructecl but as 'Lhe axis abo-,it Nih-Leli the til.tino- occ-Lii@s is lengt betv,@ee-n Avis(, of the -,Llie ioiiit tli.,-, bl'ith e aiacl the coniiection a is best made -rc a'Ull(@ ceii't - of the 13atli, as slioivn in Fig. 5 590 ti'le joint iiiay open sli@,ylltl3T @li-iring the tiltin,), moveii-ient but tl-ie coiinectioii g being mo-,,,ible tl-.e joi,,t@is (,,tsil closed Eiiain. y iLl the ii g-I- 4 @ veiktio.-ii iie,@d iiou di frer i'i@olli tli,-, tilt;lll(. ful- 951: s I)L l@esp