Show the karris karns tunneling machine warren C dogue bogue for years in charge of the local branch of the mine smelter supply company and who is now located at denver where he has an office and acts as consulting purchasing agent for mining companies putting in mine and milling equipment was in salt lake a few days ago and while here was given a royal reception by his many friends and acquaintances mr bogue is greatly interested in the karns tunneling machine and recently visited boulder colorado for the purpose of seeing one of these machines in actual op opar r aaion and he expresses himself as being thoroughly satisfied as to its success and u utility in speaking of this machine to the mining review mr dogue bogue said I 1 was in boulder on february esth and saw the karns tunneling machine in operation taking the machine as a general proposition it certainly does the work for which it is intended the machine seen in actual operation having a cutting face of six feet in diameter and striking t seventy five blows a minute was cutting hard granite at the rate of twenty inches an hour the usual number of blows is from to 15 per minute but owing to the shortage in compressor capacity it was unable to work up to regular speed working under normal capacity the machine ought to make with ease three feet an hour in ground of the same character and the machine should be in actual operation twelve out of twenty four hours this machine weighs seventeen tons and is so constructed that it is handled with the utmost ease in its operation there will be no undue wear in its working parts as all of its wearing parts are constructed of the very best class of material and the moving in parts are rotated on ball bearings As to its capacity for boring one can readily understand der stand how a machine of this character will revolutionize tunnel work the saving of time alone is of such moment and ot of ak A 6 N the utah karns tunneling machine such importance that the machine should certainly come into use very rapidly J R belcher of salt lake manager ot of the utah karns tunnelling Tun nelling machine corn com any informs the mining review that it is the intention to have the eight froot foot machine manufactured for the company and which is now at denver in operation in some utah camp at the earliest possible moment |