A - Human Necessities – 01 – D
Patent
A - Human Necessities
01
D
A01D 75/18 (2006.01) F15B 13/044 (2006.01)
Patent
CA 2320379
A crop harvesting machine includes a crop transport or feed mechanism including a feed roller to which a toothed wheel is fixed. A detent in the form of a pivotally mounted lever carries a cam or tooth, the detent being pivotable between a first position wherein the cam is engaged with the toothed wheel so as to block rotation of said feed roller, and a second position wherein the cam is disengaged from the toothed wheel so as to permit free rotation of said crop feed roller. A one-way hydraulic cylinder is coupled to said detent in parallel with a tension coil spring and is controlled by a solenoid control valve, coupled in a control circuit forming part of a metal detector circuit, so as to be pressurized for moving said detent to its first, blocking position when said metal detector sensor senses an undesirable metal object in the crop, and so as to be coupled to sump so that said spring moves the detent to its second position, permitting rotation of the crop feel roller, when no metal is detected.
Bohrer Stefan
Weissig Jorg
Borden Ladner Gervais Llp
Deere & Company
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