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Show STILL AFTER THE SMOKE ; Now Trying Out Shale Burning With tho Coal. A text has just been made in Salt Lnkc Cit of burning n mixture of conl nnd oil shale to prevent smoke. A mixture of soft coal and shale broken to approximately one-inch mesh, was spread tiKn the firebox of tho Semloh Hotel IhiiIct. The conl was thrown into the firebox as under ' ordinsrv circumstances, nnd the shale, in qusntitv about one-fourth of the , amount of the coal, wns thrown on tho top of the eoe(l. In several mo- ' ments the stenm gnuge began to rise ' stcndilj. When the iwirty went out , into the street no smoke could be scon issuing from the stnek. ' As soon ns the charge of shnle hnd ' been burnt out the furnace wns fired , with conl without nnj shnle. Immcdl-ntcl.v Immcdl-ntcl.v n black column of smoko rolled out of the stHck The urtucs of the mixed fiii)!, conwsting of shnlo nnd conl, is its simplirilv of use, its economy, econo-my, nnd its jwrfect combustion, nc-cordmg nc-cordmg to P. O. Perkins, who tins patented the procens nud spent con stdorable money in exieriitients nnd tryng to interest rnpitnl in the plsn. lhc oimplicitv of the plsn for ell-minsling ell-minsling smoke is ktIisi its chief drawback People nra skeptirnl Hint so sinie nil oieralion rnn give so excellent rmiiltn This slielc-ct.nl fm I can Ik iini! in snv funiice. Ihcre is mi iiicliMiilil(lc miiiplv of oil .tide in I tnh, nml n the shnle rnn be pro dtierd i hcnicr nnd mnrketeil nt n lens eo4t I linn conl, not onlv will the um of linxid nhnle nnd ronl wdve the smoke pf.hirm hrre in Snlt Ike CHi, bill it wilj tnenn n more efficient fuel nt n relucel nml Home enginecra hnve rniMHl objection to lining lmli tin llo fiinmrc on the ground I Tim t the mlmrnl wilt clinker nnd elog the firr grate- It i lound tbal the hnK, orthdiid to the nine hmhI it burns to n light MilwlNhcc eHml, broken to ihiw ilcr end sibling little h4i nml inicliiik-nn. inicliiik-nn. The Patontee Explains. Itv bunting oil shnle with rwl in propurlMimt of sIh.hI one of lislc to font l en I, m ierfert rombtistion U seMrc ComI, when umnI lUotie, lies on the fire some mx to eight minutes before ii liegtns to hmse, Mild dunug this Kriod Mud for n lime MfterwMrd it gms oft IteNv.v gns nnd cnrlHih which not having the flmne to bum them, iiMpf nwn.v in smoke When oil khnle M used with the coal in the pnHirliou hIni IhIhI, h Vivv dif-fimnt dif-fimnt ncliou takes place. As stniu ns the xhnle is thrown in the fireliox it blns(i up with n steHilv, ImiI llsnie which bums the gns mid tnrhoii that is cnt off bv the coJ, making n ier feet coinliiihlion nud iNHdtivelv no smoke lo eliminnte smoke in nu ordinary furunro using mwl alone, it is mcowwirj nud mi ordend by the ritXi'iiiHotors to optn the door of the nrchox from tvo to four inches. Tills calies cold nir lo rush over the fin' nnd prevent the smoke showing. The reason for the smoke not sltowing is beeitiiM! the nir thins it out. The gns mid carbon are (hero just the same, and wnh up tho chimney unhiirued nud invisible, mid so iimn.v heat units are therebv hwt In my odnlwi, st lest half tho efficiency of the itml is lost while tho door renwins omui. With the use of oil slmle nnd eon! the door of the firebox is cIinhhI tight, weming full offielenej of the fuel 1'iirther attention It. eallwl to the greater effieieue.v of the oil liie-eoNl luel, in the fact that the perfect combustion com-bustion sot tired mid eliminating the moke leave the heating suiface of the boiler ilemi, nlluwing i' lo vork in higluwl etficienc.v Ml id' iiiii.m, ilireb making n big sMviug in I nil ! After firing with eonl alone the ikieMiii gauge droM back fnun ten lo fifteen miiiiiiIx. l'inng with the oil lisle find it iloeM not drop batk It ri-es ut oiieo. 'lhi must mean muih iMiter riMilts from the luel. |