claim: 1. In a devic@ of tho character indicated, pipe rotatable about its longitudinal axis, hollow meniber surrounding said pipe and rotatable'in the opposite direction therefrom, 15 air vanes carried by said hollow member near the extremity of the rotatable pipe, a tapered nozzle carried by the pipe and having its delivei-y end slightly beyond the air vanes, and iiieans- for feediiig fluid fuel to 2o said ' p PIP 2. In a device of the character indic,,tted, i)i@,e rotatable about its longitudinal ax;8, o ow merilber surrounding said pipe and rotatable in the opposite direction therefrom, 25 air vanes ca,t-ried by said hollow inember near the extrernity of the rotatable pipe, a tapered iiozzle carried bv the pipe and liaving its delivei-y end slightly beyond the air vanes, and i-.aeans for feeding fluid f uel to 30 said pipe, said nozzle baving a secondary nozzel rigidl.1, connected therewith and extendin I _o slightly therebe@ond.. 3. n a inacliine of the chitracter described, ia pipe n-lounted and rotatable on a substan35 tially horizbntal axis, said axis having a @lono@itii-c',inal bore for carrying iluid f uel, sa.id pipe having an internal spiral groove comninnicating Nvitli the longitudinal bore of the axis and receiving fluid fuel therefrom, a 40 conn'ection from the longitudinal bore to a sotirce of fuel supply, flaring nozzle on the (@lelivery end of said pipe, and means for rotating said pipe. 4. 'In a macliine of th6 character described, 45 a pipe mounted and jrotatable on a subs n. @al tially horizontal aitis, said pipe receiving fluid ftiel fr4m a @ource of fuel suppl@,@ a end of saia pipe, ure d to the outer 50 roje cting beyond said @ipe, fan surrou atable on substanii a axis, and means, for rotating ely to said pipe and 55. independently thereof. 5. In a mechanism of the. character desciibed, a stibstantially horizontal'bearin ; @a sleeve i-nounted and rotatabl.e. therein, an air EL(,ritator. carried by said sleeve, a suppoi-fing 60 n-iember extending substantially axially tliroiigb said sleeve, a second sleeve, said s@eeond sleeve sui-roiidding said supporting member and being rotatable thereon within the first sleeve, a nozzle carried by said second sleeve, and means for rotating said sleeves 65 relatively to each other. 6. In a mechanism of the character described, a substantially horizontal bearing, a sleeve mounted and rotatable therein, an air agitator cari-ied b3, said @leeve, a supporting 7o m ember extending substantially axialIT th rotigh said sleeve, a second sleeve, said seeo nd sleeve s-urroundin-a said sul:)porting memb er and being rotatable thereon within the fii st sl6eve, a nozzle carried by said second 7 5 sl eeve, a niotoi- mounted in proximity to the af oresaid parts aiid connections from.the moto r to said sleeves whereby said E@leeves may b e rotated in opposite directions. 7. In a mechanism of the character de- 80 s cribed@ a substantially horizonial bearing,.a sl eeve mounted and rotatable therein, an air a gitator carried by said sleeve, a, supporti-ng m ember extenafiig substantially axially tli rough said sleeve, a second sleeve@ said see8 5 - ond sleeve surrounding said supporting memb er and being'rotatable thereon within the fi rst sleeve, a nozzle carried by said second sl eeve, a motor moiinted in proximity to the af oresaid' parts and connections from the 9 0 m otor to said sleeves whereby said sleeves m ay be rotated in opposite directions, said s econd sl6eve carrying at its forward end a fti el disintegra,ting nozzl.e, said nozzle coope rating with the fiir from the air agitatorto 0 5 b reak up fluicl fuel and mingle it with said air. 8. The method of forli@ing a mixture of ai r and fluid fuel, comprislnff twice mechanic all breaking up the fuel t@ produce an oil m ist and drivin(,r air tlleretlirouoh in direct 1 00 a nd reverse spirals, iind4ar iiigh ;elocity, the oi l mist bein,g interrilpted by an air spiral i mmediately af ter each mechanical break, the a I ir having a high velocit when interrupting th e oil mist at- the first break and having a 1 05 lo wo-r velodity when int,@rrupting the oil mist at the secoiid break. 9. In a machine 6f the ch,, . tracter described, a. riaid@y mounted substahtially 'horizontal , 11 pi pe, a pipe mounted and totatable tbereon, 1 10 s aid 16,st named pipe receiving fluid fuel from a source.of fuel supply, a naring nozzle on 't he delivei@y end of aid rotatable pipe, a ring s ecur.ed to said iioz@le and projectin- bey o)ad tli'e lend,thereof, and Wans lor rotating 1 15 s aid last mentioned[ pi@e. 10. In a machine o the chatacter described, a rigidly rnounted substantiall@ horizontal pi pe@@ a,,pipe motinted and rotatable tbercon, s aid last named pipe having an internal 1 20 s pii@al crroove r - eceiving. fluid fuel ftom a source fuel stipply, a flaring nozzle on tho delivery end of said rotatable pipe, and means for rat@tin- said last i-hentioned pipe. In witn@s's whereof, I hereunto subscribe 125 my name to this specificatilon. H]ILMER F. RODLER.

Patented Nov. 27, 1928. 1 693,053 UNI'TED STATES, PATENT OFFICE'. HILMER P4 RODLER, OF 3)AVENPORT, IOWA. IT,UID-:.-4 UEL E:EATING AI?PARATUS ALID 'METHOD OF -FORMING A COMBUSTIBLE XIXTURE. A13plication filed August 12,1926. Serial No. 128,857. The present iiivention pe3-tains to a metliod of mixin@ air aiid a fiuely divided fluid fuel to form a combustible mixture a-ud improvements in the inechanism for breakidg up fluid f uel and ior mixiai- air with the finely divided fuel. Aiiiong the objects of this inventioii are to provi(le an ii-@ipt-oved niethod of mixing air and f Liel; to pi@6vide improved apparatus for breakilia Lip fluid fuel; to pi@ovide imlo pi-ov6d apparatus for mixiiig air witli a fluid f uel; to i)rovide an appai-atus wliieh -@vill produce @su@ll a mixture of air and f iiel that the niixture wi 'II burii i-uore neai-ly in the middle a5 of a f urnace and tiius avoid caking of uuburnecl f uel upon the f-ur-nace walls, and sucli fui-tiier objects, advantagies, and capabilities as ivill hereafter appear aiid as are inherent in the construction and inethod disclosed lierein. 2,3 My i-uveiition further :@esid@6s in the combination, colistruction, and arrangemeiit oi@ parts illustrated in the accon-1ptiiyllig draiving and, wlill(@ I have shown therein wliat is now consi 'dered the pr@ferred ehibodiment of 23 this invention,.l desire it understood that this disclosure is illustr@itive only aiid shall not be takel'i as limitilig the scope of theinvention. In the,drawings annexed hereto and forming a part hereof, Fig. I is a vertical longi30 tudinal sectio'n of an apparatus eriabodyiug lily pi-eselit irivelition; Fi- 61 2 is an end elevation taken fi-om the rio-ht of.Fi-.-I Fig. 3 is an end elevation of the device for disintegrating tiie guid fiel and forming a primary mix35 ture of air tli@@k@with; and IA'ig. 4 is a longitudiiial section of a modification of a portion of the device shown iii Fig. 1. Referring more in detail to the drawings 2 numeral I denot6s-the base of the present con10 struction and nunieral 2 an up-standing wall secured to the base aiid supporting variotis' parts of my construct@@oli. . A pipe 3 leads into the space above the base 1 and back of the Avall 2 a@iid carries a collar 4 for adjtisting 45 tlle supply of air -ivhich is delivered to the air vanes 5. 'I'lie pipe 3 serves to carry gas @for mixture ivitli ilr to form the ii-iitial ignition chai@ge. IVIieii this becomes igiiited beyond the 3)lixing nozzle and fluid fuel is 50 broken up alid i-iiixed therewitli, the I-atter is io-nited iind the gas can be shtit off, eitl-ler ,lutomq-ticallyorma-uually. Also,if desired, the gas can be left on and form a part of the lilixture wliieh is burned -ror heating purposes., 55 i@'i-ojectino- froin the back of the wall 2 is a llaiige 6 to Nvh.'Leh is secured, by means of @ei-ews 'iiL, a liollow bocly Luember T in and on w lilch is iilounted the operating meeliaiiism of jily constriietioli. 6urliiouiiting the body (; o 7 i-s a iiiotor 8 to the sliaft 9 of wlilch are SeC L!rC@Cicti'lvingpulleyslOaiidli. Pi-eferably in tegi,.tily coiinected at 12 witli the body 7 is a b o(ly i3 iipon wlilch is niounted a valve 14 for iLgLilatili,,- aiid controlliiig the supply of 6 r) , t, li qltid fliel to Llie buriier nozzle. Tilis body 1 3 is 1)rc@ferably spaced froin the body 7 as sli owii at 15 and a pair of pulleys 16 and 17 a re iiiounted tliereiii and cooperate with the p ulleys 10 ai-id 11, being coiinected thereto by 7 0 b elts 18 and 19. The body 13 is dr.illed and tapped longit L[Ciinally at 20 for the receptioii of a fuel c al-i-yllig pipe 21 to wliieli.-fu-.1 is fed t,hrough' th e valve i4 which conti-ols the supply of 7 5 li qltid fuel froiii the n-iaiii -f-uel supply tank. T he pipe 21 is preferably flan ' ged as sliown at 2 2 so that it will be screwed ii-ito the body 13 ju @;t the riglit di8tance. Tust forwardly of the flange 22 are- openii-igs froin the interior so of the pipe to the exterior thereof, these openin,),s forii-iing a passageway for oil to escape froiii the iiitei-ior to the -exterior of the pipe. aild thus serve as lubricating inealis betiveen the exterior surface of tllis pipe and the in- 85 tei-lor surf ace of the tube whicli turns tliereon. As shoiv-n at 24 a portion of the interior stirf ace of the t Libe 23 is cut aivay in order to avoid feeding the oil with too inuch fore4@ alon the surface of the tube 21 and also in oo ordei- to reduce the ail-iount of stirface of the two titbes iii contact aiicl causing li-iction. Tlio internal sui-face of the tubo 23, where not ctit away is pi-ovicle(I witli a spiral groove to cari,y the oil froin the perforations near D5 the iqange 22 to the opposite end of the tube. Oii accoliiit of the direction of the spiral and the dii-ectioil of i,otition of the tube 23 the oil is fecl foi,ivard aloiag the ei)ntactino, surfaces as 1) i sci-ekv. This prevents friction be- 100 t%,,reeii tll(,@ i-otating tube aiid the fixed supportiii(r tube upon wliieh the rotating tube turns. A laterally openizfg nozzle 25 carries tlle oil from the interior of the fixed tube

1,693,058 and directs it outwardly against the coiiical interior surface 26 of the disintegratin(y nozzle which is secured to the el-id of tube 23, preferably by scre)v-threadiiig, as showli at 27. The disinte(,ratiii(T liozzle coiiiprises a rearward frusto-conical portion aiid a ring 28 secui-e-d thereto adjacelit its f orivard elid, preferably by ineans of inte-r-,tl posts. The rearivard end of the rincy flares o,,itzn 10 wardly ratlier sliii-ply aiicl the for'",ard end increases more slowly' in diameter. A vei-ituri 29 is provided in the Avall 2 opposite the ring 28 and around this is iiiouiited a fii-e brick or other fire resisting'structure 30 liav15 ing a flaring opening 31 ivhei@,eii-i the i-iii-N(,d gases may expand aiid commeiice to buri-i. . An air admission opci-iin,,,- 31-) is foi-ii-icd iii the wall 2 and is covere(-]. by a pivotecl pl.-Lto 3i,@ the latter bein(y noi-iiiglly closc@(I or si-il)- 20 stantial@Iv so b@ a spiiii(r or eqitii-aiciit iiie,,iD-s 34' Tli@ pivoted I)Iate or g@ite 3' iiiav be fzistened open iii aditisted pos@'tioii by iiieaiis of ,t screw 3r) or eqiiivaleiit iiie@ins. Opcniii(,- i)(; aligiis ivith the op(-,iiiiig 32 an(] poi-iiiit,, ,iir to 25 pass theretliroti(-Ii an(.1 [Iii@oti@,,h the ol)eiiinr,, 32 to supply the combitstioii neecl,,; of tlio de-. vice. A bronze or similir @")7 is ii-ioun@Led in the body 7 and seives to siipl)oi,t the rot,-,t30 able sleeve 38 wliieli li,,i,s @@eciii-(-,d tliereto it its ,it its -f rearivai-d encl the piill(@y IC) @iii(I , orward end the flan(yec.1 @3leeN@e 3(). This lattei, carries the air vaiies C) at its foriv,,ir(I encl. the vanes rotat@Iii,(y in the opl)o@;ite (Ilrection T'roli) 35 the disintecrrator by rea@,on o-f the cros,@ed belt IS whicli reverses the dit-celio,i of roti,tioi,i of the pulley 16. The chaniber 40 in the loiver portion of tl-ie body 7 is filled Nyi[li llt,,brlc,,ttinu oil 40 throiigh the fillin(y ol)oniD,!,,@ 41 :IDCI this oil. is carried to tl-ie ]7carin(,, 37 I)y the wielc 42. This ivick is iiiserte(I tlii,oii(-Ii -i-n openin@r-,- in the bottoii-i of ti)(@ I)o(l,@, 7. Tlicopenin is clo@,ecl by@ i-neaiis of a scroNV tlii,eli,d9 i@ that the fuel is thrown oft tangentially from the forward end of the surface 26 of the disintegratin<y nozzle a,nd iiiixed with air passing tlirouo'li tlid space between ihis ancl the ing 28. is also important that the a i I' 7 0 Icai,ing the Ytnes 5 has a couiiter swirl to that of tlle disintear@t6d@ fuel. Due to tl-ie sliape of the openinobetNve6l-i the disinf6- ai-ator nozzle tiid thelli-in- 28, the air passes el throu.,Ii this ()pening wiT@ a Iiigh velocity. 7,") and tlii.s, in conjiinction with the opposite rotation of the air an(I fuel, causes an intiiiiate iiiixture thoreof., The heavier particleg of fuel thro-\-,,n off from the forward eiid of the disintegrator nozzle will strike the rin(v 8( .28 ancl will itiove along the surface thereof and be furtlier broken up at. its forward eD cl aiid tbronvii off 'angentially, -with a soiiieivhat spiral iiibti6n. The air passino- thi-ou(rli the i-enturi 29 will have a couD.ter@sNvirl t"@o that 6 of the fuel and a further and inore ii).timatc, iiilxture of these will take place on tllis aecotiiit. This methocl 6f aiid apparatils for bi-eali-ing tip fltiid fuel alid mixiiia the saiiie i'vitb air is extremely iffiportant siiiee it pro- 9( dii ces a th6rough i-nixture a.-tid d,oes not force the itiixture olit with such velocity that the flaine largely breaks against the opposite In this coiistruction, the flame ocelirs apl)i,oxiiiiat,ell, in the middle of th(- space be- 95 t@ @-een the fire- resist@ing element 30 and the opl)osite Nvall of the furnace. The intinftte niixtui-c al-id the burnin(v thereof out of c . olitlet -%vitli -,tny surface j@'esults in a coiiiplet,-@ coml)us'Lioii and no eakilig of the fuel on the 1(0 surface. In the constructioii. sliown in Fig. 4, the stipl)orting iiie,-mber 21a is apertured at 4t) for a, portion onl@, of its length, the reiiiaiiidei, tliercof bein- soiid. A cross operiin- 46 con- 10.5 nected witli'@t'he loii(-,itudirial opeiiin(y 45 leads he fti@l ot,.tw. t, irclly to the spiral groo@ve oii tlio interior stirf,,tee of tlle ttibe 23". in this coiisti-uctioii, the pulley 17 i-otates the tiil)e, 45 ed pltig 43 which iiiay I)c i-ern'ovecl 'Lo (Iraiii the 2,3a qiniilarly to the way in wliieli the other 110 oil an(:l any sedii-nent @vlilcli iiia,)7 collect in cons;ti@itetion opez-ates. The fuel passin-(v 'che opening 40. the oi)enings 45 a-nd 46 ancl the sl)lral In operation of the al)ove (.Iesci@II)e(l@ con- 4i is (@arrie,(l for-,vii-dlv bv the [@itt('Istrtiction, the gas is tiiriied oii iii I)] j)e P)@ I)i,ef- iii(I deliirci@e(I tb the iiitei-ior siii,f,,icc, 0-6 is 50 erably aiitoii-iaticilly, qllcl l@lie iiiotor 8 stal@'LeC.' iii tli(@',,)i-e@7ioiisly descril)e(-l consti-uctioli. It 115 attliesaii:ietiii-ie. Tliisc,,ttig(,@,,iotzitioiiortli(,, l@-i'll I)e DoteC[ 'li,,Lt in this coiistructioii tli(,, fan, the vanes 5 of ivliicli foi@ce the tlr oiit- T@tel is c-,Li-rie(I eiitii-ely by the cpoove 47 iiid wardly tlirotigli the @@eiitiiri, the that tliei-e is no ei,.t-awiy I)ortioii 24- "(Ir gas and air inivardlv,, tliroiigli 11-te bo'Lt@ill O'i' the -@iieti-on effect of the ')'1-001-(,@ ra5 bocly 7. Any stiital;le ],(,Ynitoi-, sticii iis t, liot oil is clraii-n Ti@o3ii t float 48 tlii,otio,ll 120 c l ,vire or a sp.-trlc plu,,-. is loc,,-ttecl 'i-, fr6iit cf 1)ipe 49 to. -tlle ocly 13, iiic,- cease' fee(lill., the (Ii,inte,,i@atoi'.Ii(, t-t)c@r of b(,'i-,,, c,,itised I)y iiici@eased sl)Qcd or e I -ig -nitor catises tlio, ii ix'tire i@ottitioi i of. ttit)e 23a oped ii , - 1 Tliis,@ i( The fe(,(l Of "Inc[ oil of air tnd (ras to 1)@ i(.nite(I ,,@s it otitgoveriie Cl. by the spe(,,(l of i-ot-@ttion of 60 waidly throtigli this OI)eniii(I ,is tlic, oil ttil)c 2"),' an(I tl).e air vaiies, wliieh, are botli 125 is fed to th@ disintegritor@",Ii)d 1)j-ol@(,ii iij) cot,@ti-olle(I 1),y the iiiotor, a proper - ii-iixtlii-e therebyitisjiiixedNvitliqii-cli,ii,(@ii ' ,, of air aiid oil ivill -.it all tiiiies resiilt, iii,'@ by the vaiies r) ,ind I)ecoiyies @t coii il)ttstil)le, being atitoitiatic iiiid not i,eq@,iii-iiif@ mixture wliich is i(rnite(I I)y tli(, I)iii.-niiia I gii@D. tny iii@,,nual adjtistnient. A v@nrial)le Sl)(@O(I 05 A very important feature of this iiiveiltioii (@o@,er.-Lior 50 is -@;,)rovided, wlie,.teby the spee(IL 130

3 1,693,053 of the motor can be regulated to produce the size of flame and amount of heat desired. It is of course understood that the specific descri@tio-n of struciure and method set forth ibove iiiay be departed from without de@artfrom the spirit of my iiivention as set forth in this pecification and the appended claims. H,,iving now described my invention, I 10