Apparatus for signal and current transmission between end points which can move relative to one another

Apparatus for signal and current transmission between end points capable of moving relative to one another having a flat ribbon line arranged in between. The ribbon has at least two conductors, embedded in an insulating sheath. The ribbon is subdivided into winding areas, connected by a U-shaped reversal point and is accommodated in a cassette, having a rotor and stator. The rotor and stator enclose between them an annular winding area for the ribbon. A strip of insulating material is arranged in the winding area of the cassette and has at least two sections which are offset with respect to one another in the circumferential direction of the cassette and have reversal points and associated winding areas. The strip is placed around turning points, fitted to the stator. The strip supports the ribbon such that turns of the ribbon do not fall on one another.