Drum polishing apparatus
AssigneeDr.-Ing. Manfrid Dreher KG apparatebau und chemisch Verfahrenstechnik fur Oberflachenbehandlung von Metallen
InventorManfrid Dreher
Life of this patent
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Abstract
Drum polishing and tumbling apparatus having a cylindrical casing rotated about its central axis. A screw conveyor is located within the casing substantially from one end to the other. The screw conveyor is rotated about its axis relative to the casing. The screw conveyor extends radially outward into proximity to the surface of the inner wall of the casing. Seal means is provided if desired between the blade of the screw conveyor and the surface of the casing. The screw conveyor is journaled in bearings located in the end walls of the cylinder and is independently and selectively rotated.
Claims15
Drum apparatus for the mechanical surface treatment of particulate material by a suitable media comrpising a cylindrical casing adapted to be rotated about its central axis, an inlet at one end for the supply of media and material and an outlet at the other end for the removal of said media and material, a screw conveyor located within said casing adapted to be rotated relative to said casing to move said media and material, said screw conveyor extending substantially the length of said casing and radially outward into proximity with the surface of the inner wall of said casing and comprising an axle and a spiral blade integrally formed therewith, said axle being journalled in bearings located at each end of said casing comprising a central hub surrounding said axle and support means extending radially outward in connection with said casing, said support means having an opening therein adapted to align with said inlet and outlet means on rotation of said casing, and means for variably rotating each of said casing and screw conveyor independently of the other, to obtain selectively variable relative speed therebetween.
Dependencies are inferred from the claim text.