Description
Class B66B : ELEVATORS; ESCALATORS OR MOVING WALKWAYS
Subclass 1/10: Control systems of elevators in general (safety devices B66B 5/00; controlling door or gate operation B66B 13/00; systems of general application G05) Control systems without regulation, i.e. without retroactive action electric with devices, e.g. handles or levers, in the cars or cages for direct control of movements specially adapted for mining hoists