FIELD: agricultural engineering, in particular, equipment used for threshing of non-uniformly ripened crops cultivated for seed production.
SUBSTANCE: threshing-and-separating apparatus has frame with drive and upper and lower threshing rolls arranged in pairs. Surface of threshing rolls is made in the form of projections. Each row of projections is angularly offset in cross section. Height of projections is equal to diameter of seeds. On threshing, seeds completely fall into slots of lower roll.
EFFECT: simplified construction and eliminated fractioning of seeds.
2 cl, 3 dwg
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