Sieve plate baffle attachment for grain combines

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Details

130 27Z, 130DIG6, A01F 1232

Patent

active

044806434

ABSTRACT:
A conventional grain harvesting combine is disclosed herein comprising a wheel supported body, a grain harvesting means on the forward end thereof, at least two parallel substantially horizontal spaced perforated sieve plates adjacent the rearward end thereof, and a fan means adapted to direct air upwardly and rearwardly through the sieve plates to remove chaff from harvested grain thereon. The improvement to this conventional structure as disclosed herein comprises an end gate on the combine which acts in conjunction with at least two baffle members which extend laterally across the body member adjacent the rearward ends of the sieve plates to substantially reduce the amount of air flowing upwardly and rearwardly through the rearward end of the uppermost sieve plate. The baffle members can be either of solid or perforated construction or a combination thereof.
The rearward end of the upper sieve plate has a replaceable portion of perforated construction so that it can be readily replaced to accommodate the specific type of grain being harvested.

REFERENCES:
patent: 1230437 (1917-06-01), Schuette
patent: 2318661 (1943-05-01), Beckmann
patent: 2670845 (1954-03-01), Busack et al.
patent: 2950720 (1960-08-01), Sheard
patent: 3367496 (1968-02-01), Cockle et al.
patent: 3603063 (1971-09-01), Stroburg
patent: 3610252 (1971-10-01), DeCoene
patent: 4250897 (1981-02-01), Glaser

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