Show 11 IX 1131 31 A tharo c hu alu a 1 been ft certain amount of arru cyb st C tad na 37 yet ono scarcely knows know w why cached to tho the op apt ration named above md th which ich wo we ore ro about to des critte As A gen cral role ralo at ill all events until latr lat r stars ille of blost blast farnacci has haa icae alceo in trusted let bo men inca who bod bed rien it mt it were from tho the ranks having latla in dt D t cnut originally loan cam cukr tk ro or t itla T a doder fillers bril who either bar wit ra R oa 01 z times tun very cretul rc tUtta win 0 ran of ilie a cht AVS ce I 1 of lh tho arr oy oi e crati r j t oon they hay we acro 1 I an and borkel rather by uie the rulo rule of thumb than tiny any other oilier IW produced a or tun on bjur part it ft beilla that they stend some secret anc thod of treating tr cAline their furo aco as and nd cir ar hunly to our oar own knon liln an unwillingness to give even area to their employers more bulor U to abo burners pressure of blast etc than was waa actually actu illy ingao coin gulory on them lowood on this point we wa recollect one ODO wry ciry furnaca ioan her in m south boulb walt a aho aty refused to give giro in at the goico anything moro more then the average Trago ft burden of the an any y of diato chang wire we it carefully or RA fm bo to liked to it liol lio to abrow alio llio limply imply meant giving douds without p arti culan things are very acry much change I 1 at ditico uce vito and theory y of abo I 1 libat ast f ada rda ell hu has formed thu the subject or of pl nd atry tarr accursio investigation a at the bands of buch nun nin u urn bell the more cre operation ration of blowing la in L t r P arting Lug operations in ablest furnace ties laj DOI wo we think howai bowser tir becu nery cry fre described 1 tied nod it is to that proem of iron no tile article arti clo that we love furnace stack built and completely hued fitted according to the designs decided upon abo be first and most dec bobary proceeding in ia commencing is 11 to it well and 1 dried any dam paces renall 2 the hearth bring if ing almost uro sure to a setting talog ortho of tho iron there and probably no end of trouble and labor iu in castim la in and tapping fineco whilst if tile uppa pun par bo not dot rise dry ultra a ditl lit bo be tin extra risk nel or of and a ko dincy on tile iho beat to 90 working point to ft a and of tho masonry attended 1 or of course by an dicapo cape of gas md and other oilier ua alio tint of it firo on OD the liet irth for which a 1 ny I ful fail illde ill do me aso g en trally acon in abo ill habit comfy of stepping up tip ilia to djoro with lire clay leaving tile tho setting retting 01 a thu the auyer themselves until it a vs as determined ditc to go ghou on with tho the regular tilling this binally oi nally witla coal colio orcha or cliar coal rocial wo we liaro havo found lound it adrun blu to fill up in inthe be hasl in stanco to the fail all capacity CapaC ItT or 01 like furnace with full fuel lono alone and then trier after I lacing tho the itly cres to drove oil oa ft R weak pillar of hima nith aluir coal a pressure ot of from a quarter to half ft pound to botho alio inch will bo found bufu chent but with colo or coal a somewhat stronger pillar will probably ho bo found desire blo ble tito result of thus thia will to lv 1110 gradual formation in ill tho the health hloi th of a certain quantity of clinker and allias alli cs which bo be periodically by forming a scaffold ofir kager bar over abo top of tho admi plato bill borling boot badt fuel tie to furnace wu roughly to clear out from tho the breast the hole of the baarth it an ex good plan to lo allow altow A portion of tho the uio tile hole of oco court only until tho the uret first 0 tho the iron reaches the livai limle th iu as it is 18 th bly heated and auy tendency to chill the metia or cana cacao it to kt ell is id hereby proven prevented lain that tho the hibart b is thoroughly lit staled abed tho the ore and charges may be L commenced although no believe that lint tit in some instances these lee are filled the blast is ii arson on OD the manager of courm to in tho the itley of fact already in iu tho ilia farnaro being for its ha perfect drying and preparation tor for tho the descent of tho the iron with charcoal furnaces is ia but little difficulty at this point but sto stonecoal tod had colo coho require ire gnat cue caro to prevent alive sion and tho congo quant scaffolding indeed bituminous coal will me times bake into largo majc and cakes through vilich it is 11 absolu absolutely toly blo ble that tny say air can pau pass combustion Is banco choc licu and have hato frequently on the ar reaching reach nig the elmp tims to bo be up tip by means of ringers at land bare and drugged out over the damp plata plat another plan to 18 to put on a proportion tit in each charge tit of old costi cutini tig or pig iron which of course cornea down vc very gi fluid old and lot mid and fairly cats through aud breake away any acau ulda that may have bavo fornies fordred A corials amoust of anxiety usually atta clice to the earlier cuts from ft a newly blonn ln in bladt not only as regard ren aiila it the quality of the metal which may but iho which arlace at those these stages resulting from abo want of sufficient neat beat and the codie cause quent setting or chilling of tho the iron BA as it reaches tho the in getting gelling the in tapping ping bar driven io in 0 wo o have bavo wm in exists of ehni sort eort a quantity of charcoal pilad in front r of f the iho top tap hole and by leading a small jot jet of blast round to it from the turro ucb such an of lost boat produced as aa r 1 to hayany a aa sy yany any obstruction after how low evar say ray a work at moderato mo dirato rato should all gu go va tho pig arcy affey or good bealtho white and aho canair well rapa rated and running fraly the cordon nuy may bo put UP tolls full weight and la IQ say nay three aeiko the furnace ought to reach tho the kropi r outturn out turn ilow how this haa flat been in creace of lato site way may bo be from the ibo fact bonio twenty ant tona of forgo pig iron 0 r c ax k alc wc at more than production bailit at odie american works notably those tt fit Carondo Caron dolt lct A bita and aad buo long loin of pig are regularly run ran out every week and the proprietors anticipate from some borne now stocks erected a largo larg increase on this at too another another not lot measure rRean uro of economy los been taken it Is well known to all practical men luat the point at which a blaa furnaca unit first to wear out of ibo zono zone a my a y about two foet feet in height lich liw JIN cleame dalily d I 1 I 1 ay above the tu yeres and to check this tendency or jackets of wrought or cost tram with watertight water tight comper caauw running them and liott constantly co with makr catraro wat are placed in fit the iho ex exterior tenor wells slid and this to in found nod to checkor mocha modify tho dist distraction ruction of the fire blick imide I 1 no 0 LAVO have ourselves kell something jum alfr to th able 16 tried in tho shape abapo of water bb 6 placed above the tny erca with the elltee generally centrally haa however ever of lowering tho ilia of the alio iron produced la in a police paper uch ouch as the we via cannot of coura to in t kr aar into tho the varied placation cla cation of if lot hot or old cold blaag and position po of itoi but wo we may perhaps in pay that our experience certainly goes to prove proto what over may bo be its ita on oa clita quality itty that hot bliest vastly vantly tho wo we have bave to d aribu i e r u practical magazine Ln anglish glish |