Patent ID: 7284744

Claim:
A lifting device comprising: two longitudinal cable pairs with hoisting cables which are arranged in a V-shape relative to one another and which engage at a load suspension apparatus and which are taken off from drivable cable drums for lifting and lowering the load suspension apparatus and which have free lengths of cable lying in longitudinal planes which are located at a distance from one another; two transverse cable pairs with hoisting cables which are arranged in a V-shape relative to one another and which engage at the load suspension apparatus and which are taken off from drivable cable drums for lifting and lowering the load suspension apparatus and which have free lengths of cable lying in transverse planes which are located at a distance from one another and extend at right angles to the longitudinal planes; and two mechanically separate hoists being provided for the hoisting cables of the two longitudinal cable pairs and for the hoisting cables of the two transverse cable pairs, each of the hoists being drivable by its own driving motor, and wherein the driving motors are controlled by a common control device.