Improvements in and relating to bleaching vats, settlement and filtering vessels

摘要

500,152. Filters ; gravity-separation apparatus ; bleaching - vats. GEWERK SCHAFT KERAMCHEMIE-BERGGARTEN. April 12, 1938, No. 11238. Convention date, April 14, 1937, [Class 46] [Also in Group IV] A bottom b for bleaching-vats and settlement and filtering vessels consists of plates c of ceramic material formed with cylindrical or conical projections d. An outlet e for liquid is bridged by bars g.