Patent ID: 7427232
Filing Date: 2008-09-23
Classification: A01F

Abstract:
1. An agricultural combine, comprising: a separating system including a rotor and a concave; a cleaning system including at least one sieve disposed below the separating system for receiving a flow of crop material therefrom, and a fan operable for generating a flow of air upwardly through the sieve for carrying elements of chaff upwardly away from the sieve, the sieve being configured for allowing downward passage of clean grain of the crop material therethrough, and the sieve including a peripheral edge portion over which tailings can fall; and a conveying system disposed below the sieve and configured for separately receiving clean grain which passes downwardly therethrough and tailings which fall over the peripheral edge thereof, and jointly but separately conveying the clean grain and the tailings to a clean grain transfer conveyor, and a tailings transfer conveyor, respectively, wherein the conveying system includes a plurality of troughs containing helical augers disposed above and in connection with the clean rain transfer conveyor and the tailings transfer conveyor, the augers being operable for simultaneously conveying clean grain and tailings separately along the troughs into the clean grain and tailings transfer conveyors, respectively.