Standard cotton mill practice and equipment, with classified buyer's index (1918)
National Association of Cotton Manufacturers, National Association of Cotton Manufacturers. Year book of the National Association of Cotton Manufacturers · Boston : The National Association of Cotton Manufacturers · leaf 253
GRAVITY FILTERS (Patented) … Gravity filters are built in unitswith capacities varying from S.OOO to1,000,000 gallons per 24 hours each.Combinations for practically any ca-pacity with required sedimentation canlie furnished. Patented brass conicalstrainers and patented valveless coag-ulant feed apparatus are special feat-ures…