Show wit 14 1 4 41 4 L mf 74 A ao 41 64 X k xv aa 4 aw 0 o V ilk Is three rounds a week wee slow drilling SULLIVAN DRILLS have been up against stiff g ground r i aund pretty good for these lb DW 64 in many parts of the world but there are few districts of course there is a reason or several of them where a round of holes means as much as in the rand gold camp in the transvaal 1 the sullivan indea independent spool valve which gives such stich fast snappy action to the piston six DW have been finishing a round every second 2 the splendid material and exact working fits fits of all shift in drive that into dyke at the nourse ames mmes mines a ran moving parts which enables the drill to keep to its th the e rock necessitates one foot changes of steel this strenuous job day after day sounds slow but the drills that had this drive before 3 the positive powerful rotation which makes true there of them instead of six got a round in were eight round holes and helps the bit to do its full job only once in three shifts I 1 but most of all that quality of smooth running even performance the illustration shows no 19 level cross cut in the for mance by which operators recognize a superior drill crown mines this is 10 by 16 ft and 32 holes averaging before they have bottomed the fir first hole which is the expression 10 ft deep cut holes 12 st ft deep per round are of over thirty years of experience and skill in being drilled with 6 DW drill shift starts at 7 design and manufacture of good rock drills A M rig up and drill and tear down by 12 noon the rock is central area county rock as hard bard as any in the DW 64 is all that a rock drill can be the camp ft of advance were made with these machines send for bulletin E in 27 drilling shifts SULLIVAN MACHINERY COMPANY intermountain office warehouse and service station DOOLY BLOCK SALT LAKE CITY |