Grinding mill
OwnerVirgilio Rovereinventor
Life of this patent
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Abstract
The mill includes coaxial inner and outer cones mounted in telescopic relationship, each having facing helical ribs with the ribs on one cone crossing the ribs on the other cone so that material received intermediate the two cones at the apex of the cones passes to the base. The two cones are preferably relatively adjustable to control particle size.
Claims4
A grinding mill comprising two coaxial cones, means for mounting said cones in telescopic relationship so that the distance between the walls of the cones is smallest at the base of the cones, the outer cone being rotatable and having internal helical ribs and the inner cone being stationary and having external helical ribs, the ribs on one cone crossing the ribs on the other cone so that material passing between the two cones is conveyed from the apex to the base of the cones.
Dependencies are inferred from the claim text.