Show A 01 U A t economical or flotation floa tion requires 10 a filter theres only one many kinds have been tried there are a few others still in use but no new plant is considered up tip to date without an oliver and many old plants are scrapping their slow intermittent filter for the OLIVER continuous FILTER continuous decantation cyanide plants have why has the oliver replaced other filters or de proven one fact conclusively viz their losses in watering systems in 60 mills milis and why have 95 cyanide and zinc pay for an oliver in less than a filter units been sold on reorders year the saving in gold is profit from the start our many recent sales alethe are the best evidence automatic continuous efficient operation and Is flotation replacing not if new simple sturdy construction tell the story our oliver cyanide filter installations are a criterion new booklet oil flotation oliver filtration gives details send for it the oliver filter will show a saving in your mill copper gold silver lead or z zinc inc want to know how write to us giving details of your case MR F oliver continuous A it U filter company first and market streets san francisco Franci cal no royalties to pay on ANY work of an oliver filter |