US PATENT SUBCLASS 460 / 63
.~ With prethreshing cylinder

Current as of: June, 1999
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460 /   HD   CROP THRESHING OR SEPARATING

59  DF  THRESHING {13}
63.~ With prethreshing cylinder

DEFINITION

Classification: 460/63

With prethreshing cylinder:

(under subclass 59) Subject matter in which a smaller size

cylinder and a concave or a feeding surface with protruding fingers is mounted prior to main threshing elements to assist in threshing operation.

(1) Note. Patents having rethreshing or multiple threshing cylinders of similar construction are classified in subclasses 13 and 76.

SEE OR SEARCH THIS CLASS, SUBCLASS:

75, for transverse threshing section

14, for rethreshing by separate diverse threshing means

141, for cylinder and concave for nongrain products.

46, for shelling by concave and cylinder. 24, for flax thresher.

SEE OR SEARCH CLASS

99, Foods and Beverages: Apparatus,

574+, for separation by rotating means.

209, Classifying, Separating, and Assorting Solids,

288, for cylinder or drum sifters.