Crop threshing or separating – Threshing
Patent
1988-05-27
1990-02-27
Bui, Thuy M.
Crop threshing or separating
Threshing
460 61, 460 65, A01F 704, A01F 1240
Patent
active
049042246
ABSTRACT:
A harvesting machine for feeding seed plants such as grain into the machine includes a threshing unit and a sieve set for threshing the seed plant and for separating the seeds from the rest of the vegetable material. The seeds are removed from the machine and the residual vegetable material is removed. The threshing unit includes a drum and beaters or flails. The drum is conical and is fitted in the apparatus in a vertical position so that it widens from the bottom towards the top, and the flails are installed on the outer surface of the drum. The sieve set is formed of at least two sieves which are at least partly conical and are nested and a threshing space is located in between the drum and the sieve set. An outer shroud is conical, and the threshing unit and the sieve set are fitted inside the shroud and in between the sieve set and the shroud there is a collecting bin for the seeds and an opening is provided for removing them.
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patent: 4284086 (1981-08-01), Williams
patent: 4422462 (1983-10-01), Decoene
patent: 4461306 (1984-07-01), De Busscher
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