Show above swaging a bit under the vertical ham merdie mer die below double taper bit made on the sullivan sharpener bits made on the anvil W were aare tough but remember wh when en all bits were hammered out on anvils those were tough bits and they grew t tougher with every sharpening hammering made thern them so but even the most skillful smith could not make bits with the accuracy to gauge and the uniformity they receive from the tool steel dies and dollies of the sullivan all hammer sharpener nor could he handle bandle bits with one fourth the speed of this machine yet the toughening effect of the smiths sledge ham mer blow is not lost in the sullivan sharpener upsetting settin z and swaging are done entirely by hammer blows from powerful fast hitting air hammer Y your our steel grows grow s tougher with every shar sharpening pening it without 11 olds holds edge and gauge longer drills farther re sharpening and is less apt to break drill dal for you the sullivan sharpener means faster i ing ng less drill sharpening labor less labor r for collect coliece mer ing and distributing steel and less steel anve invest t tn he there is only one ALL HAMMER sharpener sullivan write for catalog J A contest staged between double taper bits bit s made yle taper alnet the sullivan sharpener and standard 14 10 increased bits showed that the double taper bits per nage 37 per cent increased tons of rock broken bok a 2 steel sharpened per cent and made possible W 10 ya in reduction in starting gauge and a on each steel instead of an 8 in sullivan machinery co coal chicago lake city ut W second south street salt |