Inter-Mountain Republican | 1907-02-07 | Page 8 | Smith Reports on Tunneling Machine

q SMITH REPORTS ON t TUNNEL Nfl 1 M MACHINE MACHINEr r r- r J Test Showed Progress of Five Feet An Hour Through I t. t Granite J. J jP F P won on Smith Jr who wio re- re turned from a 0 trip to Colorado where 1 vent t to t witness the thc per per- Up or il ti the Karns tunneling machine j Any iy object oC or our trip was to In Inspect sped the tho mechanical structure and witness H Aha thi ho ol operation of the constructed ma- ma hIno at the India mine near Colorado 7 COlorado in Lu n structure the tile machine is so sim Ie o as to be 1 absolutely or of U through op operation rulon there being behig but two wearing the parts 4 ing rate face and amI the hearings bearings find and tasy Kt of or acc access ss end and quick 0 or ot replace replace- J ent 1 7 In operation it Is surprisingly erf ef cr- er- er f I In spite to of ot many defects in preparation and nOlI manipulation it hewed hawed 5 its Is own passage through solid rock at the sate rate te of ut five tIve feet teet per ver hour durin during r the time It was being run for tor our ourThe The moyles or cutters used on this timis 1 l occasion had already cut out some forty feet foet of or tunnel and anti looked good foe tOJ to considerable erable service yet Tho rock in which the machine Is g Is an Impure grapite possibly harder barller thin than some of our limestone or or quartzite but o of such hardness as Subjects the thc m machine chine to a aery very ery severe ere tORt test It stood tood up HO so well under the I test jest that I am nm finally convinced that f 4 the tho machines will easily perform the time 1 service expected of them Mr r Belcher Deicher president cn t of ot the Utah company brought back a sample sack j of ot the cuttings from the machine which shows plainly the character of the rock and antI the notion action of or tho the ma- ma S. 5 chine