Abstract: A support for current conductor rails at an essentially double T-shaped beam girder is welded together of two mirror-symmetrical profiles. A support, carrying the current rails, surrounds the top flange of the beam girder (1) and rests with an angled clamping face (7) at an angled holder strap (4) of the top flange. The support (6) is held by U or V-shaped clamps (12) at the holder strap (4) of the top flange. This arrangement provides for a suitable attachment possibility for current conductor rails above the bottom flange of a double T-shaped beam girder.

Abstract: A current contact line arrangement includes a plurality of energy and control current contact lines for engagement with current collectors of a movable energy consumer such as a crane, trolley carriage or the like which is not intended to pass beyond a predetermined point and is characterized by the fact that at least one of the energy or control current contact lines (5) is covered by an insulator (9) which is longer than the brake path of the movable energy consumer.

Abstract: A guided working device (1) is driven by an operable traction motor (2) for movement along a travel rail (3). The working device carries a driver (4) provided with articulated heads for a measuring carriage (5), which measuring carriage always travels the same distance as the working device (1). The measuring carriage travels on a control rail (11) and includes a measuring device (6). A plurality of sliding conductors (17) are also receivable by the control rail (11). The measuring carriage carries a preferably toothed measuring wheel about at least a circumferential portion of which a preferably toothed measuring belt is wrapped. The measuring wheel (7) is pressed, by guided wheels (8) in front of and behind the measuring wheel, against a toothed belt supporting surface which is associated with the control rail (11).

Abstract: A joint for two electric current bus bars facing each other with one end each, includes similarly constructed sheet metal plug elements of rectangular cross section, respectively inserted in the bars, but projecting therefrom, and a U-shaped connecting element being a current conductor or an insulator clampingly engages the plug elements for interconnecting them, and having windows receiving strip like extensions of the plug element.

Abstract: A holder for conductors on a rail has multiple claw pairs arranged in staggered and laterally offset relation, for minimizing the space requirement. Claws for holding adjacent conductors are aligned but separated for individual resilient deflection; several fasteners for the holder on the rail are disclosed, all providing for snap action kind of insertion.

Abstract: Control signals are transmitted to and from a vehicle in that stationary transducers are mounted on a parallelogram suspension for a collector line in a particular relation thereto, while a complementary and cooperating transducer is mounted next to a collector shoe on a vehicle, so that the collector line adjustment is used to ensure particular alignment of the transducers when passing.