the end flange 4 adjacent to it see fig6 in making this calculation the increase in cable width in the axial direction of the drum in the transition zone from one winding to the next subsequent winding must as a rule be taken into consideration with the result of this calculation together with the cable width and other fixed given parameters such as certain physical properties or dimensions of the cable the control device calculates the length of the transition zone 13 in the circumferential direction as well as all the variables derived therefrom to control the relative movement between the cable drum 1 and the guide system 7 which is dependent on the cable drum rotation with respect to winding spacing and transition zone length and location as schematically shown by outputs fo and fo respectively as an important datum for this control function the diameter of the core 2 is fed to the control device c in order to determine the placement and the length of the transition zone 13 of the individual windings for the first layer 9 in the form of a corresponding angular range for the upper layers of windings the control device c can calculate the diameter of a layer and correct it with the aid as needed of measurements for instance of the linear cable speed and the rotary speed of the cable drum finally the data fed to the control device c may include data relating to the deviations of the end flanges 3 4 from planes perpendicular to the longitudinal or rotational axis 5 these data are then used in the movement control for attaining the course of winding described with respect to fig7 as may.