Abstract: A device for transmitting signals or current between end points which can be moved relative to one another is specified between which at least two flat ribbon lines (4-7) extending in turns and accommodated in an essentially circular cassette are arranged which have at least one electrical conductor, t the end points, continuing lines can be connected to the flat ribbon lines (4-7)—The cassette consists of a rotor (1) which is rotatable about its axis, and a stationary stator (2), which enclose between them an annular winding space (3) for accommodating the flat ribbon lines (4-7) One of the flat ribbon lines being arranged between one end point each of the rotor (1) each and one end point of the stator (2), in such a manner that it rests against he rotor (1) with at least one first turn and, after passing through a U-shaped reversing point, against the stator (2) with at least one second turn, the direction of winding of which. is opposite to that of the first turn.