THRESHING DEVICE Russian patent published in 1995 - IPC

FIELD: agricultural engineering. SUBSTANCE: device comprises concave and drum with threshing members arranged in rows on its cylindrical surface along helical lines of opposite threads. Threshing members have the form of plates and the helical lines of each row are directed contrary to the helical line of adjacent rows and middle of the drum in longitudinal and peripheral directions. The end plates of longitudinally adjacent rows in the middle of the drum form wedge-shaped tools whose apices are directed along rotation of drum. EFFECT: improved design. 2 cl, 3 dwg