1,913,599 3 C(Mbtistion g,,ise,,; from being drawii olit of tl-te I)tirnin(,, Iiiln and enteriii(, iiito ttie wisto lie,,it fli@ic. Along the wiste licat t.iii)iiel.;tj-e 5flues 28 foi, witlidi@,,ii%,iii(, 1-i(@;it fll(-)iii cooling kiliis into the wa,,te lieat tiiiiii(@l ,tii(idelia-ei-ing it to t,lie l@ilii beiiig Av;ttet, @itioke(l. There is one (-oniiecting flii(, 28 fi,oiii kiln to tlie, @v,,i-,te lieitt nii(, 27 to I)e foi, .,t 10 diial I)urpose. Fij,st, to the lipat oiit of a (,ooli@iig l@iln -iiito flite 27: to provide an iiilet froiii the iva,.,tc, lieit flit(, 27 iii.to the killi for wqter siiioliiii(.- Bi-anclling ()ff froin the li(@lit flii(@ oi.- 15 tunnel is a fliie 34 for coiivei,iiig liot,-,iii- oiw,,iste heat to a drying cli;iilll)ei-. Tlii,,, fliie is controlled by tbree daiiil)er.,@ 35, siiiiilti@ to the dampers 29. The faii foihot air or coi-nbiistion g@ises from oll(@ ]@illi 20 and delivering titem to inotlioi, is sliowil ill Figtires 11 .tnd 12, and consists of a fiii ")7, siipported on a ti@i@ick 36. This fan liti", ',Ill inlet @38 adapted to be coniie,(,to(I to ,in oiitlet 33 in a passagewav for med by the fliie.,@ @)b 25 and 6 or to ari ouilet 32 at oiie'si(le of the waste heat flue. In operation the varioits kilns are iii (lifferent heatconditions at any time of ol)eration. In order to clearly brin out the opei,- 30 ation of the series of l@ilns, it is siippo,,;e(I that kiln B is buriiing, Lln A is cooliii(,,; kild C is preheated; IKilil D is w ter sniol;@ing, while Iiiln E is being filled and Iciln F is being emptie(-I. At this st,,ige of opei,ation 35 onc of the fans is for(@ing.aii- into the (Ii-,,tft flue, aild for th,,i.t purpose is att,,icbe(.1 to th(,, fai-i platform, a.,@ slioii-ii in Figiire 4. The kiln A has its dampei- 1,3 clos.ed an(I damper 14 open so that fresli air pass(,s iii 40 beneath the flooi, of the IKilii iip tbrotigli the floor, down throtigh t-h@; coiyibtistioii c.hiinber ind out into the wiste beat tiinnel foipreheating, water si'noking -,ind (Iryiii.g piii-poses. 45 Duriii(-r the tii-ne that the ]@iln B i,, I)iirning a fan is-applie(I to the outlet of kiln C so that hot gases are drawn from kiln B, throtigli the ]Kilii for prehe,,tting piirposes. The btii@iiing kiln h,,is been beatecl to i tem50 eratti,re of about two thoiisand degi,ee,,, ind by drawiiig the hot gases. from the biii-iiiiig kilti, throu-h the preheatidg Ifiln, tlie, teiiiperature of the prelicat,iiig kilii is raise(] to aboiit 800 degrees. This ol)eratioii (,oiitirill(,s 55 until the biirning in kiln B is fijiislie(I iii(i the iiiaterial in ]@ilii C has becii i)i-elie,,ite(I f(iburnin(, purposes. At the sai-tic tiifie I)ot iiiand waste heat are being dr,,twii 'fi-oiii the coolin(@ kiln A, and driven iiito the wat,ei60 sn1oking kiln T). By nieans of the liot, aii, and tlie, waste heat ihis @kiln is lieaied to ,t temperattire of abotit 200 degieeq. II)is is siiffieient to remove the reii-iiiniiig iyioi,.,tiii-e from the material in the kil-n I)repai-,,itory for 65 the step of preheating. Aftei, tlip I)Lll'ltillg fins beeii fi nished i.n ]@,:iIDB, kilii C be,(@oliies the btii-iiiiig l@iln; kiln D tli(,, 1)j-(,Iieatiiig l@iln, and li@iln E (lie siiloliii . ig kiln; kiln F is !I)cfilllii,alilliiiii(lkiliiAbe(-onie-theempty- 70 l@iiii iii(i kilii 11 is t,lie cooling kiln. 'I'he cl(@s(,i,ibeci iii cojin etion wi t e I)iti,niiio. of kilii B is iepea-te fl.v iiie@iiis of the ari-,,tiigeiiieiit of kilns li(@i-ein .,et otit,, iio oi, a vei-v siiiall loss of heat 7-5 tik(@@@ 1)1,i(-e the lieit i,9 - condiicted fi-oiii oji(@ ],:ilii (iii,ectly to ajiotlier, wliere the fieat is iise(I for variotis plirposes. In order to f-acilitate this niovemeiit of hot gases froi@a ori(@ ],:Ilii to another, iiiova,ble fans are pro- 80 -,-i(led, NiIiieli dii-ectly di-aavn the hot air and froin one kili@ into ,in ,tdjacent l@ciln, oi- azioth(@i- l@ilii colsely adl,,icent@ this iiieaiis tliei-e is l@)i-ovidecl a n-ietho(I I)v the liot fi-oni a biiriiing kilii 85 (I'l-e(@tly (-OIIN7e@'(@(i to aiiotlier kiln for I)iti-I)oses and the liot air from :t i-e(-eiitlv I)tiz-iied kiln to still anotlier l@iln for Ay.a tei@iii ol@iDg. rho essentitil. or primary st(,I) s iii tlaeii- pi,efei-red seqiieiiee, ai-e as fol- 90 IoNi ,s: I)rawii)g cool ,iii- fi,oiii the atmosphei-c tlit-otigli a fitie ,-)b %at the ol)eiiiiig 33, lelding it tlii-oti(-Ii tli(@ bottoiii draft fltie'system of :I (loolill(, l@iln, tlit-oii(Th the w,,ire tlierc,.ii), tNi-liei-c the cool air is li(,,Ite(l, and the stet) 95 of iii(lii(@.iii(Y this tii, thiis lieited, tlii@ougli j, ]@ilii foi, siiiokin- or dryii)g :iiiotlic tep 0 I)III@poses; 'Ill(] 'llso of tll(@ s f fil-ill(, q Iiijii to a Iligli t(@ilipei-(ittii-e aii(I dl',Iwin(. .111 ()f t', the lieit tlierefi-oiii tbi-oitgli inotliei, kilii foi. I)j,elicatiiig. @lt is I)aiti(ttilarly @l I)al,t of tlte iiietlio(-l to t,ake, by - ipl)t-ol)i-iate stel)s, fi,otii oiie l@ilji ln(i it to 1):iqs tlti,oii(,@li (iiie oiiiioi,e, ot,ber kilils wit!-,oitt liaviii(, 1)@iss(,(l tlii,oitgli iiit.ci,veiiiiig klliis. No 1015 loii(@ fliics ,ii@e neces,@,,try, aii(I iio loii(Y (,oi)ti(,(.-tiiig fliie,,, or ttiiiiiels (ire uqe(i it, :Illy ])el-io(-l ill the opei-@ition of this ot- ii) aiiy 1)ei,iod in the lic,.atiii(l, of the I (1(@sit@e i(@ (-oiiiprelienci witlliii nl,), tioii iiio(lifi(-,ttions as iii@iv be einbi-a(@e(-] Nvitl)iii iiiy cl;tiiiis (iiid the of my II)- i-ciit ioti. flaA-iii@, tit(is fiilly de,@(,ril)(@(I lnv i llA@ej)tiol), I (-I:iiiii @,,is iieai, aild (lesii-e i(@) se(.tire I)Y f,ette!-@,@ l'iit(,iit, i,,: 1. Iii :i l@ili), a I)tii@iiiiig lia-%@ijio- a, flo(ii- wit li ()I)eiiiiigs tlici-tiii,,i will at-OLind tho fif)oi- :itifl ,iii iit,(-ii:itc doitic oii the AA@all, iii(i 120 i)i(,,i iis witli tli(, w(ill foi@ deliN-(,ril)g li(,.tt (@(ii i:illv to ,ill 1)@7trts of the (loiiie i(ija(,eiit, tl)(, iiie,,i iis a fl-,isli ;iyi(i I)IO (@ks S"li(I IN,@ills. I ii ;i l@ilti, t flooi- liavitig ol)cjlill,"s tllerc,- 125 iii, ii . i iiititilii- (@liaiiiiiei@ lit@-itig all ililet, fl@le, , -iii oiitl(,t flii(, b(,tioatli tli(@ flooi- li:i\-iiig cojiNi-itli q"li(I ;I 1)1:lilj NN@,111 I)Rl'- ill@', :I (loille tllei@eoll "Irolill(I tll(@ fl')ol', I flisli 1'Vtll sl)accd froill the iiiiiii wall and forming 130

tlierewitli a rombLi,,;tioii (-haiiibei-, aii(i a partitioii betiveen tlie, tnvo (-Iianibers liaviiig opeiiiiigs le-,t(liiig fi,oiii oiie to the otlier. 3. lit t kllii, a flooi- liaviiig opeiiiiias tliei,t,- ii). tii iiiniilti@ (-Iiiiiiiber having an inlet. an oiitlet lieneatli tl)e flo-)r having connections NN-itli sai(I a iiiain wall havinc,r a (if)iiie tliereon, a flash wall spaced frotii the iii,tin wall an(I forming therewitli a combtis10 tion cliaml.)er (@onnected to the annular chainbei@ bv small spaced openin(rs, and means iii the coiiil)iistioii chamber for producing lieat an(I distribiitiii- it equally to all parts of the doiiic adjacent the main wall. Ir) 4. In a kiln, a fl,)or having openings thereiii, in otitlet I)eiieath the floor haviiig connections with the openings, a main wall aroun(I the floor, a dome on the main wall, a flash ivall sl)@eed from the iiiain wall and f ormin(, 20 tliei,eAN,ith i combustion cliamber, a pluralitv of biiriier.9 in ;aid main wall around the combtistioii chamber, a gas pipe having a c,)nnection with each burner, an a;r pipe having.a connection -with each burner, and a portable 25 fan adapte(I to be connected to the air pipe for deliverii) fresh air thereto. 5. In a kiln structure, a plurality of kilns, each i@iln consisting of a main wall, a dome oii the inain wall, a flash wall spaced from the 30 inain wall aiid forming therewith a combiistion chaiiiber, and a flgor having opeiiinas tliei-ein, aii inlet for eacli kilii leadino- to the coiyibitstioii cliamber, aiicl aii otitlet for each kiln coniiected to the opeiiings in the floor and 35 coniie-eted to the inlet of an adjacent kiln. 6. In a kilii stritettire, -,t I)Itirality of kilns, eael-i kiln cons;sting of a, main wall, a cloiiie nii the main wall, a flash - ,iall spac ed f rom the iiiain w,,tll aiicl foi,iiiing tlierewith a coni40 btistion cliaml)er aiid a floor having openings tlierein, an iiilet for each 1,-iln leidiiig to the (@ombitstioii cliaiiiber, an outlet for ea(-Ii kilii (-oiinected to the opening,-, in the floor and c()iiri(-,(-te(I to the inlet of an adjacent kiln, ai),c] 45 a waste lieat fliie coiinected to eaell kiln. 7. Tn a @iln stritettire, a pltiraliky of kiliis, each kiln coiisistiiig of a main WRII, a doiiie on the iii,,Lin iN-all, a flash wall spaced from the niain wall and foriiiiiig tlierewith ,i com50 biistion cliaii-il)er an(i a floor having ol)enings thei-eiii, an inlet for eteli kiln leadiiig to the (!onibiistioii (!Iiaiiiber, aii oiitlet for each kiln coiinecte(,l to the ol)eniiia@; in the floor aiid (,onnected to the inlet of aii adjacent kiln, a. 55 Wa,,te heat fliie, an(i a flue, having -,t dampeithereiii (,oiiiiecting eacli kilii to the waste heat fltie,. 8. In a kilji striietiire. a lurality of kilns, p a wa@,te lieat flite, a bi,aiieli flii@e between each 60 kllji atid the waste heat fltie, and a triple danil)er ineans iii each brancli fltie.. 9. Iii a iiiln sti-uctitre, a plitrality of kilns, a wqste lieit flue, a brancli flue between each kiln and the waste heat flue, and a triple 65 damper means in each branch flue, said triple dam.pei, ineans hanritig a limited amount of o])eii sl)aee to the atmosphere controlled by a iii(VIII)le I)Iate to break the stietioii created on eitlipi, -,I(le, of the damper. 10. Iii a kilii ' striiettire, a pltirality of kilns, 70, a NAaste heat flite, a branc@ flue between eacb kiln an(I the waste heat flue, and a.tr.iple claiiiper in each braiieh flue, said triple dainper ineaiis liaving a limited amount of free space to the atmosphere controlled by an 75 iron plate which may I)e rnoved to give the proper opening to break the suction in the flue. 11. In a kiln striieture, a main wall, a flash wall spaced from the main wall to form a' 80 combtistion cliimber, a plurality of burners projectin(r throtigh tfie inain wall to the combustion cliamber. aiid spreaders between the wall for each btirner to divide the hot gases into streaii-is. 85 12. In a kiln structure, a main wall having a dome, a flasli wall witbin and spaced from the n-iain Avall, a plurality of burners - projectiii- throii(rh the main wall, means between tn t, the the -walls to direct the hot gases upward- 90 ly, and spreaders adjacent the upper edge of the flash wall to divicle the 1-iot (rases from each btirner iiito siliall dispersed streams. Iii testimonv whereof, I affix my signature. HIIINRY C. KLEYMEYER. 1)5 100 105 110 115 120 125 130

Patented June 13,, 1933 11913@599 UNITED, STATES PATENT OFFICE HENRY C. KLEYMEYER., 01? EVANSVILLE, INDIANA KILN Application filed. March 30, This'illveiition i-clates to iiiiprovemeiits in IcilDs and iii the arral!-P@nent aiid coiinection t@ of a pluralitv of l@ilns and the i-netliod of heatilicy tlie,kilns in continuous sequence. It is an obje(.,t of t-Ilis inveiition to provide, in connectioii with ,t iiie,,ins for produeiiig heat and clisti-ibutin(,, the beat in equal Sti,eims ,ii-otizi(I the iiit,eriot- of the kiln, and conductiiig the lie@it streaiiis toivard the cen10 ter and doiviiwat-dly tlirou-h the bottoiii of the l@iln. For this ptit-pose there i.9 provided witbin the kili@, ,iiid spaced froiii the wa'[Is thereof, a flash ivall providin(y a combustion chamber into. ivhicli iiidividtial burners pro13 ject. Iniii-iediately above each btirner and suppoited I)y tlid flash wall in connectioli with the i-nain wall, ar,@ spaced tiles or slabs forming openiiip@.,; for ti-ie distribtition of the go heat as it i-ises the t-vvo walls. Tt I's al,@o @iii obj@,et. of this iii@,ention to provi(le. iii coline(-tloii ivitti a pli,ir.1,1]ity of intej,cbnnecte(i iiie.,tiis i(lapted to be associtit(,,([ Ni-itli otie kiiii foi, N-,,ithdj,,,i@viiia heat fron,i anotliei, l(iiii aiid for ivatei- siiiokiiig or 25 prebeatijig pill-poses. It is Illotli i, ob (I of' t,liis iiiveiition to provide, iii (@onT)eCtiOll Witi'l I I)Itii@tility of kili)s, iiie,,i,iis for witlidi-awiii(, lieit fi-oin a (-ooling ]@iln 1)@r (-.iiiqiiig i, ciii-i-elit ()f air 30 throtigli the l@iln in ,i dire(,,tioii rovei-se to the heating ciii,rent, aiid (iii-ectiii(r tbp, streaiti of bot air tli@,.reby create(- ] I into ,i l@iln for water smokiiig piii-po-,es. TI@ie heated air taken froin a cooling l@ilii in,.iy alsobe iised 35 for force(I draft in firiiig a kiln witb coal or natural gas, or it may be conveyed to a drying chamber or dryer to (Iry the green ,",are as it is made. It is a further object of tlliq iiiveiition . to 40 provide, in connection ivitli a pltirality of k . iins, a waste be,,i.t collectiiig a,nd disirib1-itiiig fliie haviiig a (,@oiiiiecting flite t-o each kiln to serve a clti,,tl piirpose, one to take waste lieit oitt of the l@ilii tliqt is coolizily; the, ot.het45 to allow waste heat to enter the kil'n foi, inater oses. Tri eacli coiinectiiig fliie f (laidpei-s ai-raii(ye,(] to prevent (- oi)il)ttstion gis iiito the wiste an(I distribtitiiig flLt(,, dtiriiig 5(l the fii,iii(v op ratioii. These pliti-@il damp193 2. Serial No. 602,04i. er s are so situated that each one aids the otl ier in prevei)tinz the escape of the combustio n gas fr om th@'kiln being fired into the w aste heat'flue. I t is also an object of this invention to pro5 5 vi de a method of heatinz one or more kilbs by drawina theretlirou('@ the waste heat or co n-ibustioi@ gases f rorn-an adjacent or a reinote kiln which is burning or being cooled. Th e metliod includes the step of drawing cool 60 air @ throuch a cooling kiln and tl-ie step of for cing the cool air, heated by passinz thr ough said cooling li:iln, into another kil@ for water smoking purposes. It also includes th e step of heating one kiln and the step of 65 pr eheating another kiln by drawing the combu stion gases froi.ii the kiln being heated thr ough the kiln to be preheated. These 'and ottier advantages will appear 70 fro ii-i the following description taken in coniie etion with the di,awinL)'s, Refei-ring to the drawings: Figure 1 shows a set,ies of kilzis arranged tie cordiiig to the preferr'ed plan in a single ro w. 75 Figiii-c 2 sliows a cloiible i,ow or sei,ies of li:ili )s arranged in a iiio(lified plan, so there na be a coiitinitoiis c)peration of the kilns Ivit -Y _hollt any interi,tiptioii. 80 F igure 3 is q loiigittidinill section tllr ougli oiie of tli'e, Icilns. F igure I is a top plan view of one of the lcilns. F iomre 5 is It vertical section throtilyh one 8 5 sid e of one of the l@ilns, showing ti@,e consti,t iction of the kiln away from the distrib uting flue. F igiire 6 is ,t top plan view of oiie of the kil ns and part of anotber, with Sections thereof I)roken away to show tbe interior con- 90 stitiction of the kilb. Figui,.e 7 i.s a fra,giiient,@i,i,y view showing a horizontal section tbj',oi.ig@ oiie, side of one of t]-te ]@iljis, iiist beiie,,itli the siirface of the gioiind, so that the draft flue tnd a, part of 95 the corribiistion chamber are Shown. Figiire 8 is a vertical section through one of tli(,. kilii showing tlle application of tli( @ burner t,o the kiln. 100 Figure 9 is a horizorital section throtigh a

2 1,913,599 part of the, waste heat tunnel, an adjacent part of the kiln and the connection between the waste heat tunnel and the kiln. Figure 10 i s a section on the line 10-10 of Figure 9. Figure 11 is a rear elevat-ion of the fan truck. : Figure 12 is a. side elevatioii. of the fat.@. truck. 10 Figure 13 is a vertical section through one side of the kiln, showing anotlier form of spreader. Figure 14 is a vertical section on the line 14-14 of Figure 13. 16 Figure 15 is a view similar to Figure 13 but showiiig a slightly modified form of spreader from that shown in Figures 13 and 14. Figure 16 is a section on the line 16-16 20 of Figure 15. In Figure 1 there is shown a series of kilns arranged in line and connected to one another. These kilns are indicated by the letters A, B, C, D, E aiid F. 25 In r@igure 2 a rino- series of kiln-s is shown. In this series, in add.ition to the kilns sl-iown in Figure 1, there are five other kiln,@ designated G, H, I, J and K, connected to each ottier in the same manner that the kilns 30 of Figure I are, and connected to the kilns of Figure I at the end of the series. In Figtire 3 there is shown a I ongitudinal, vertical section of one of the kilns. Each kilti has the usual wall 1, which is eiretilar in 35 shape, with a base 2 made of brick, or other suitable iiiaterial. The walls are iistially made of brick. The floor of the kiln is indicated bvilthe numeral 3, which has openings 4 exteri(.Iin(r downwardly and terrninating in 40 -branches 5-that converg'e into a central chaiiib ' er 5a, from which there is an outlet or distributiiig flue 5b. This flue 56 is connected to the inlet flite 6 of an in-imediately adjacent kiln. This 45 inlet fliie, terminates on the inside of thp- wall of the kiln in a circular chamber 7. Immedihtely above the eireiilar chainber, and between a flash wall 8 which surrounds the floor of the kiln and the wall of the kiln proper, 50 is a combustion chamber 9. This combiistion chamber is separated f rom the circular chaiiiber 7 by means of a floor or partition 7a, which has a plurality of equally spaced holes or openin,gs 7b therein for the passage of 56 hot gases. This partition 7a with the equally spaced holes tberein aids in the (- Iistribiition of the combustion gases for prelieating purposes, and also in withdrawing the hot air from the kilns for cooling purposes. 60 Arranged at suitablo, points aroiin'd the upper edge, and bet-sveen the wall 1.,qnd the flaih wall 8, are horizontal spreaders 10 or iircuate spreaders 10a and 10b, as shown in Figures 13 to 16, inclusive, which serve to 65 divide the incoming hot gases int6 a large nui-nber of small streaiiis that pass upwardly and engage the donie or crown 11, which is coiicave in -shape and tends to catise the streams of risinoggases to converge towards 70 the top of the dome, and take a downward cotirse through the n-iaterial being burned, and out through the openings 4 in the flo'or, into the braiiehes 5, to the central chamber 5a. and outlet 5b, which leads into the I inlet 75 of the adjacent kiln. On top of the doiiie or crown is an openip,,- or hole, closed by a lid or cap 12. In the in-, let flue is a daiiipe@ 13, operated fi,oin the (yround leN7el. There is a siniilar damper 14 1711 the outlet flue 56. Between the flues 5b 80 an(-l 6 are openings or fan coiinections 33, later to be described. , For the purpo,,e of providin,-, as to the kilns a gas niaiii 15 is pi-ovi(led on one side of the single roiv of l(ilns, or on both sides 85 of the double row of kilns. Froin thes.e gas mains a brancli 16 exten(Is to a kiln main 17 for each kiln. These kiln mains extend in a circle around the top of tlie, wall, ancl have extending tlierefroin a pluraj'.ity of branches 90 18, each b.avin(y a v,,ilve 19 therein to control the flow of (ras tliei-ein. Each brinch 18 terminates iii- @t burner 20, -,vlileli projects tlirotigli the wall of the kiln, as siiown in Fi-tire 3. 95 Around eacli li:iln and below the ground surface is aii air I)il)e or di-aft flile 21, which lias extendin" til)Nvardl@, tliei-efroiii a branch 22 for eacli I)iti,iier. The ait- an([ the (yas -1@- coii-ie together iii the I)ttriier iii aiiiaiiner sinii- 1(( lar to that of t Btiii,@(@n btiriiei-. In order that 1)i-elieated iir iiiay be supplic@d throiigli the (]raft fltie, there is connected witli eacli di-aft flite a fan @ase 23, wlii(@li is adapted to siil)poi@t tliereon a fan 24 105 having- aii otitlet I)ipe 25 f roiii the fan, and aii inlet 26 into the draft flue. Bv iiieaii-, of this fan and its coi)iieetion witil the draft fltie, preheated air I is I)rovided to the draft flue for coii-ibiistion ptirposes for eitlier nat- 110 tiral gas or othei- ki,nd of fuel. Adjaceiit one side of the series of kilns as sliown in Figtire 1,1 or between the two rows of kiliis as slio-,N-n in Fi(Yure 2, there is a waste heat flue or tiinnel 2-( connected to the inte- 115 rior of eacli Icil.n by nieaiis of a coiliiecting fltie 28 leading to the coiiibii,,,-tion chai-nber 9. Iii each connecting fltie there are three dampers 29, arrangeci in sl)aced relatioiiship to each other. as shoinn iii Figures 9 aiid 10. 120 These danipers extend through slots 31 in the roof 6v tol) of the connectiii-, flue and fit iii slots 30 in the sides and in the bottom thereof. The roof or top of the connecting flue between the daml)ers has a liniited amount of 125 open space to the atiiiosphere controlled by sliding plates, whicii prevelit or break the siietion created on either side of the dampers in the connecting flue. These dampers are primarily for the purpose of preventing the 130