Control devices for speed-changing geared mechanisms, e.g. specially adapted couplings for synchronising devices, devices to simplify control, control of auxiliary gearboxes

Child Classifications

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• F16H 2708/02 only the toothed wheels remain engaged
• F16H 2708/10 only the toothed wheels may be disengaged
• F16H 2708/16 wherein the gearing is not described or not essential
• F16H 2708/24 with a preselection system, mainly semi-automatic, e.g. with automatic preselection, but controlled at the intended moment, with force amplification