FIELD: agricultural engineering. SUBSTANCE: novelty resides in that boards 5 and 6 are made at least in the form of two combs with rectangular teeth 7 directed towards grating, arranged at even spacing and located one after another, with teeth of following board 6 displaced within half a spacing in relation to teeth of preceding board 6. Boards are interconnected in pairs by arc-shaped section 8, with convexity facing upwards. Boards 5 and 6 are mounted with distance between them increasing in direction grating. EFFECT: enhanced efficiency of operation and improved quality of harvested grain. 3 cl, 4 dwg
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Authors
Dates
1994-08-15—Published
1991-05-28—Filed