US3420370A Froth flotation cell Google Patents
1,028,590. Froth flotation apparatus mixing and agitating apparatus. KLOCKNER HUMBOLDTDEUTZ A.G. Feb. 5,1964 , No. 4872/64. Addition to 959, 920. Headings B1C and B2H. The swash plate impeller of the froth flotation chamber described in the parent Specification is modified by the provision of ribs on its underside as well as its upper side and by providing a supply of air to



































