Drive-unit located within the step-belt of an escalator
Driven handrail means for escalators
Driven handrail means for escalators
Driving mechanism for driving moving handrail
Driving system for elevators in particular and other...
Driving system for passenger transportation
Dual actuator mechanical switch
Dual control system for cranes
Dual ramp cam actuator
Dual-motor a.c. drive for automatic hoists
Dumbwaiter door
Duplex driving system for an electrically-operated moving...
Dynamic assignment switching in the dispatching of elevator...
Dynamic braking of electric hoist motors
Dynamic selection of elevator call assignment scan direction
Dynamically programmed motor operated valve control
Dynamically reevaluated elevator call assignments
Early car announcement
Eddy-current brake for hoists and the like
Electric brake control for elevators