A - Human Necessities – 01 – D
Patent
A - Human Necessities
01
D
56/47.5
A01D 34/76 (2006.01) A01D 34/66 (2006.01) A01D 43/10 (2006.01) A01D 82/00 (2006.01)
Patent
CA 1168455
32 ABSTRACT A crop cutting apparatus has two vertical axis rotary drum cutters 13, each having an upper rotor with a crop conveying surface 13, and a lower rotor carrying knives 21. Gears drive the upper and lower rotors at different angular velocities. The lower rotor has an annular rim 18 having an upper surface shaped to continue the outline of the conveying surface 19. The knives 21 protrude outwardly from beneath the rim 18 and rotate with the rim. A wiper brush 34 mounted on the conveying surface 19 projects outwardly over the rim 18 for lifting and transferring crop to the surface 19. The upper rotor may have conditioning brushes 35 for conveying crop and conditioning crop by relative movement between the brushes and the crop. The upper and lower rotors may be rotated in opposite senses to effect at least partial shear cutting.
383595
Fuller Robert F.
National Research Development Corporation
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