| Show GIANT SHOVELS STRIP MINES OF TON 1 N SIX HOURS METHODS PROGRESS attention of coal operator operators focused on developing of new mechanical anical mining methods th 10 rt delete m eal tal equipment to reduce production costs iston manning mantling th D attention of coal oper storn it of mhd tient ral stated tate nr or cordial cordea to professor probes or R 8 levi is of thea the ualle of school of mines who returned from a two tn o mouth months trip made for the tile purpose of stu dlug coal raining mining method methods in illinois the i of michigan the 1 11 1 r lity elty of chicago st sk uil and slid other points bere here o 0 SIR opportunity tunit Z existed to observe frogren of riia eft ailing letb odi were visited by the ro feor bile la in abc cat A just Is la IQ utah the coal operator I 1 of the ait east is up against the problem I 1 of overproduction 1 laid said professor lexi lewis the brit best talent aad and kill skill of the engineering profess loas li 1 engro e a IM ned in dolring ng the many intricacies that are alre rising to beset th thi industry methods of attack if cf course vary with the rom com banies anle and men in charge strip mining the proem process by witch coal i Is mined as j ore ii Is mined at the uth UA copper mint at tit Bigg liani i Is prat heed where condl thi aitor ibis b letb od and coal seams do not lie deep below the surface face some rL equipment hae has been developed dei eloped for la strip mines 10 flu lift tight lards of overburden burden to the load 1 aad are f booms on these silo e ele a are arr ninety feet lony long large built i thoe these shortie operated explained professor lewie or a full fail circle and lean cleall off a swath xo about ans fait fet I 1 wido in tarr wake follow shovel which loid the tile eoal coal from the cam leam on 0 the return trip the swat nil led 44 filed so that overburden oter burden jno iril i minimum djs distal tim shovel sh vels idith IT I 1 h A boom feet loag iry andu and alid U T le I 1 tot cubic cuble byard yard dipper are now being built for IT nine lines othera seam lie iles at a 11 ilp alp 1 ii it of afi eferin file feet below the tile surface method methods of operation 0 aeration at the iv orl beat ent mine zt aa I 1 e are a retla 1 ion tion this in mine tie ope opera tigi at alj J dt ili of feet has I 1 a production product on TOK lr rf 12 00 tons I 1 in eix six hours 1 4 limited bv the amount of ore itil o 0 a be In holsted holi Isted ted only in ant eal till difficulty hag has prevented pro into tod th h t utpal of tons in eight hours i ittai at which the staff ha hap its trained tra likeL mechanical cal ers i 1 at he n 1 4 near dowell 1 at cited ard t lej offer a contrastino cob tito os I 1 TAO at anc ne ev Ct rient at 0 the hat hiten mine I eal teal loading and A ad mining equip mit i Is adored 0 red at the yew vew orient mn int power powel t uit told by pi di L E gindrat 1 manager cr of tho kathleen chati ill tp IP develop and ue ilse devices needed I 1 gre great t faith put and ana ne patience wt E 1 because 1 of the initia problem lift arising 1 ng to pioneer new equipment but 1 because of the ftp aln of labor union unions eldr 1 elrea se himself a is believing of nih anical ill peen ted ckon taj way out of the dioran horani of loy lon ince high costs and lion h ii I 1 which the coal oal is fl f I 1 the accomplishment of th wilham william ion on antt cutting machier ma chirr chire er at the kathleem Kit Kith lileen leem is amazing this ma chine thine one of the tile raitt complicate comp I 1 h have ave seep cuts by anicil metho ethol ni A six foe liv jr foot enar dij coal st ams at the rate TRIO of eight I 1 it I 1 t 4 an on hour no n blasting is neep lit loading machine of tic the a at is by alt tho 1 alto 0 fai ors il 14 of 1 11 1 chin Illin ifal feal loader is oi s 1 0 t tyl 1 1 what ean call 1 done by b enfil hill aladin I 1 i ns its oppose d b by V hand and loaline loal loa lintz lip I 1 etite that in one ono pin mal I 1 mje hine bolit t ariit am W tons of toil in 11 eight ann with rut but adur ienir int I 1 rr ordinary ordin arr lilo methods the lest test record that coill ill bc made was to produce toni ton of t cal u g from ten tell to men 1 |
