Improvements in grinding mills

摘要

474,837. Conical mills. LISTER, F. V. May 15, 1936, No. 13784. [Class 59] In a mill of the continuous-feed high-speed rotary type comprising a rotor and stator with parallel or nearly parallel grinding surfaces a, b1, the material is fed only to one side of the rotor b, the operative face portion of which is imperforate and is provided with blades c which are tangentially disposed and curved in cross-section. The blades may be tapered from one end to the other and may be adjustably secured on the rotor.