A - Human Necessities – 01 – D
Patent
A - Human Necessities
01
D
130/22, 74/223
A01D 41/12 (2006.01) A01D 41/127 (2006.01) A01F 12/56 (2006.01)
Patent
CA 1178158
Abstract of the Disclosure A harvester in the form of a self-propelled combine (11) has a crop header (24) and conveying means (31, 32) feeding crop material to a threshing rotor (34). The speed of rotation of the rotor (34) is adjustable by changing the speed of a variable speed belt drive (50) in the drive train from an engine (16) to the threshing rotor (34). The variable speed belt drive (50) is of a type whose speed ratio cannot be changed unless it is running. A special rotor clutch (71) is interposed between the variable speed belt drive (50) and the threshing rotor (34) to permit the variable speed drive to be disconnected from the threshing rotor. Thus, when the rotor (34) stops rotating because of excess crop material, the rotor clutch (71) may be operated to break the power train between the variable speed belt drive (501 and the threshing rotor (34) and the variable speed belt drive (50) may be run and adjusted to a lower output speed. Upon reengagement of the rotor clutch (71), higher torque can be delivered to the threshing rotor (34), thus, greatly increasing the probability of turning the rotor (34) to overcome the crop material jam.
418806
Huhman Michael L.
James Larry R.
Allis-Chalmers Corporation
Swabey Ogilvy Renault
LandOfFree
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