Show to 0 e in in P porphyry p h ary F SULLIVAN 50 with ew a ROTATORS MINU T AT 0 R S DR these pictures show unusually difficult drilling with sullivan quick rotation DR rotators at the tintic gintic standard mine dividend utah the work is in an open pit which supplies waste for slope filling under ground holes 30 41 to 40 feet deep are being drilled reaul regularly arly with the hollow in ln steel with 4 cross bits are employed and the A drills are run dry INC 10 the rock is broken and sticky but no difficulty is encountered in keeping the holes free from cuttings the great reat drilling power and liiv the strong strong and rapid front end rotation of rotators make these 4 3 L W results possible ol 01 01 thus far over tons 01 have been quarried with these machines sullivan rotators are available SULLIVAN CATALOG SERVICE in 7 different types to suit OW if interested send for our catalogues cataloguer catal various classes of drilling work on the items below check those you want vant ask for B bulletin il letin D air compressors el nair hoists f 0 0 A water dustless i jet drifters el el D sullivan machinery comp company can y dr drill ill sharpeners Sharp eners 0 el a di diamond iamond drilling fl a west 2nd and south street salt lake GRY city coal cutters D kaba i |