donati

Drive machinery, except for land vehicles, in particular, electric motors; electric motors with built-in brake (brake motors), except for land vehicles; electric motors with built-in gearing (geared motor), except for land vehicles; gearboxes, microspeed gear boxes, namely two or several brake motors connected to each other with mechanical gears, except for land vehicles; moving gear components (machine parts), namely box frames open on one side with built-in running wheel (wheel blocks), rail travel mechanism composed of driven and idle wheel blocks, included in this class; moving gears as parts of machines or mechanical equipment for trailing cables and current collectors, included in this class; moving gears for lifting gears, in particular, lifting apparatus being moveable along a monorail or double rail of a crane, included in this class; load lifting and lowering machinery and mechanical equipment, lifting gears, in particular, chain hoists and cable winches, winches, cranes, wall slewing cranes, slewing pillar cranes, column-type swinging cranes, stacker cranes, gantry cranes, overhead travelling cranes, single-beam overhead travelling cranes, double-beam overhead travelling cranes, roof cranes, jib and telescopic cranes, pneumatically operated cable pulls with a control system for the handling of loads appearing to be nearly agravic, lifting gears with a rigid, telescopic lifting axle, suspended railways, in particular, overhead monorails, pneumatically and electrically operated brakes, in particular, brakes for electric motors driving lifting gears; parts of machinery for lifting technology, namely load suspension devices of metal, in particular, lifting hooks, grabs and grippers, gripper fingers, parallel grippers, clam shell grabs, multi-rope grabs, power clamshells, grapples, power grapples, internal tensioning spindles, pneumatic or electrical pivoting and rotary units, mainly consisting of drive motors and gearboxes, included in this class; parts of machinery for lifting technology, namely load suspension devices with a magnet, in particular, round magnets, rectangular magnets, and several magnets suspended on a crossbeam. Electric conductor rails and electric current collector trolley therefor for supplying power to a moveable apparatus and moveable switches, in particular each for lifting gears; switches, power switches, contactors (electromagnetic switches), one-way pole reversible contactors (electromagnetic switches), pole shifter contactors (electromagnetic switches), suspended switches, radio telecontrol switches; infrared telecontrol switches; conductors of electric current, in particular, trailing cables and electric contact line systems; electrical and electronic instruments for controlling lifting gears, electrical and electronic instruments for load measuring; electrical and electronic instruments for measuring the service lives of an electric drive and a lifting gear; electrical and electronic apparatus for starting and stopping a drive depending on the rotations completed by the drive, in particular, transmission limit switches; electrical and electronic apparatus for monitoring materials-handling systems and equipment, in particular, drives, lifting gears, chain hoists, cable winches and crane systems, aforementioned apparatus also for defining maintenance intervals, calculating the remaining service life and recording of error protocols; electrical and/or electronic devices for electric motor speed control, in particular, frequency converters for three phase AC motors.