(under subclass 92) Apparatus having an annular or cylindrical member which separates the threshed grain from the straw.
(1) Note. The device may or may not be integral with the threshing cylinder and may not be of similar construction but essentially performing the function of the straw walker; however, device does not necessarily exclude the straw walker also being present. See subclass 85 for straw walker, per se.
SEE OR SEARCH CLASS
99, Foods and Beverages: Apparatus,
567+, having means to separate external portion from food products.
209, Classifying, Separating, and Assorting Solids,
288, for rotating drum sifters.
241, Solid Material Comminution or Disintegration, 185.5+, for apparatus in which the material is subjected to rotary striking member; subclass 220 for apparatus in which one of the cooperating surfaces rotates about an axis.
