Other constructional features or details

BPERFORMING OPERATIONS TRANSPORTING B66Lifting technology B66CCRANES LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES

B66C13/00Other constructional features or details

B66C13/005Cranes carrying advertisements or the like B66C13/02Devices for facilitating retrieval of floating objects B66C13/04Auxiliary devices for controlling movements of suspended loads, or preventing cable slack B66C13/06for minimising or preventing longitudinal or transverse swinging of loads B66C13/063electrical B66C13/066for minimising vibration of a boom B66C13/08for depositing loads in desired attitudes or positions B66C13/085electrical B66C13/10for preventing cable slack B66C13/105electrical B66C13/12Arrangements of means for transmitting pneumatic, hydraulic, or electric power to movable parts of devices B66C13/14to load-engaging elements or motors associated therewith B66C13/16Applications of indicating, registering, or weighing devices B66C13/18Control systems or devices B66C13/20for non-electric drives B66C13/22for electric drives B66C13/23Circuits for controlling the lowering of the load B66C13/24by dc motors B66C13/26by ac motors B66C13/28utilising regenerative braking for controlling descent of heavy loads and having means for preventing rotation of motor in the hoisting direction when load is released B66C13/30Circuits for braking, traversing, or slewing motors B66C13/32for operating grab bucket hoists by means of one or more electric motors used both for hosting and lowering the loads and for opening and closing the bucket jaws B66C13/34through differential or planetary gearing B66C13/36Single-motor-drive control systems B66C13/38Systems controlling independent motors B66C13/40Applications of devices for transmitting control pulses Applications of remote control devices B66C13/42Hydraulic transmitters B66C13/44Electrical transmitters B66C13/46Position indicators for suspended loads or for crane elements B66C13/48Automatic control of crane drives for producing a single or repeated working cycle Programme control B66C13/50Applications of limit circuits or of limit-switch arrangements B66C13/52Details of compartments for driving engines or motors or of operator's stands or cabins B66C13/54Operator's stands or cabins B66C13/56Arrangements of handles or pedals