(under subclass 45) Subject matter having a revolving drum provided with a toothed convex surface and a stationary shell with a ribbed concave surface such that an ear of corn can move between the revolving cylinder and shell and the action of ribs and teeth serves to tear the grains of corn from the ear.
(1) Note. The device may include a drum and a counter-drum disposed horizontally one within the other.
SEE OR SEARCH THIS CLASS, SUBCLASS:
63, for prethreshing cylinder; subclass 75 for apparatus with transverse threshing section; subclass 141 for apparatus having cylinder and concave used for separating nongrain crop material; subclass 14 for rethreshing apparatus having separate diverse threshing means.
SEE OR SEARCH CLASS
99, Foods and Beverages: Apparatus,
574, wherein separating means is rotated in order to separate the external portion from the remaining food. 209, Classifying, Separating, and Assorting Solids,
274, for sifting devices which are curved concavely or convexly on the surfaces to which material is delivered.
