Show Collects Valuable Dust DustA I. I Ii A fan effectively el collects the filings filing s an and and grindings' grindings In n H shop where ble metals ire are le worked and saves sates the portion usually lost In the tho cracks In the floor The Tile el electric c motor and controller controller con con- con operate the grinding wheel At the left is a n smith small operated motor ex ex- haust fan fart which draws the particles Into n it shaped funnel opening placed as us ne lr the thu work as possible This discharges cs Into nto n rack on the floor S The simplicity of this arrangement and the savings reuniting resulting from Its use recommend It highly wherever pre pre- re- re dons cious or semiprecious metals are worked Most Bost Jewelers do not need the ar ar- because the saving would he too but out manufacturers have found tile the investment in paid beyond nit nil expectations Washington Star |