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A roller driven by an engine through a reversible gearbox that is engaged via a belt or chain by a clutch that engages and disengages the belt base on changes in the engine RPM.
A roller driven by an engine through a reversible gearbox that is engaged via a belt or chain by a clutch that engages and disengages the belt base on changes in the engine RPM.
Mechanical drive roller
SIMON SHANE D (author)
2017-08-01
Patent
Electronic Resource
English