Abstract: A reel arrangement includes a main reel and a secondary reel which are mounted on a common reel axle. A winding diameter of the secondary reel is smaller than a winding diameter of the main reel. A line runs from a stationary first line end via a line loop to the secondary reel to be wound up and unwound there. The line is then routed to the main reel and secured to the main reel and/or the secondary reel. The secondary reel is winding spirally and the main reel is winding cylindrically. The line loop is under the influence of a tensioning force directed in opposition to a winding direction of the secondary reel and pulls on the line loop such as to always spirally wind the line. A weight body is connected to the line loop for displacement in longitudinal direction of the line to generate the tensioning force.

Abstract: A drive arrangement for displacing a contacting device from a raised position to a lowered position includes a four-joint linkage having first, second and third arms interconnected such as to displace the contacting device as the first, second and third arms pivot. An actuator is connected via an actuating lever to the first arm and acted upon by a spring force which counteracts an actuating force applied by the actuator on the actuating lever. The actuating lever is pivotally connected to the first arm and supportable on the first arm via a catch when the first arm is displaced into a raised position and detachable from the first arm when the first arm is displaced into a lowered position, so that the actuating lever assumes a release position in the lowered position of the contacting device, with the contacting device maintained in the lowered position by its weight force.

Abstract: The disclosure relates to a slip ring assembly, which has a slip ring body and at least one slip ring arranged on the slip ring body and a contact module having contact elements. The contact elements contact a slideway of the slip ring. A cleaning device is provided for cleaning the slideway. According to the disclosure, the cleaning device has a cleaning brush having a brush filling contacting the slideway.

Abstract: An energy transmission device for a watercraft includes a tower arranged on land, a telescoping boom connected to the tower for pivoting about a horizontal axis and about a vertical axis, said boom including a free end, and a first plug connected to the free end of the boom and designed to electrically contact for transmission of electrical energy a second upwardly oriented plug on the watercraft via a vertical plugging motion from above by pivoting the boom relative to the tower.

Abstract: A line supply arrangement for electrically powered motor vehicles includes an electric line on a support arm above the motor vehicle. A trolley on the support arm positions the electric line such that a free end thereof hangs down from the trolley for connection to the motor vehicle and charging of an energy store. The trolley is movable relative to the support arm in horizontal direction or the support arm is movable and the trolley relative to the support arm in horizontal direction. Arranged on the trolley is a line reel to lower the free end of the electric line to the motor vehicle, and a hose reel is fixed on the support arm for supply and discharge of cooling liquid to and from the electric line. The trolley is movable relative to the hose reel. A heat exchanger is arranged distal to the trolley for cooling the cooling liquid.

Abstract: A line supply arrangement for electrically powered motor vehicles includes an electric line on a support arm above the motor vehicle. A trolley on the support arm positions the electric line such that a free end thereof hangs down from the trolley for connection to the motor vehicle and charging of an energy store. The trolley is movable relative to the support arm in horizontal direction or the support arm is movable and the trolley relative to the support arm in horizontal direction. Arranged on the trolley is a line reel to lower the free end of the electric line to the motor vehicle, and a hose reel is fixed on the support arm for supply and discharge of cooling liquid to and from the electric line. The trolley is movable relative to the hose reel. A heat exchanger is arranged distal to the trolley for cooling the cooling liquid.

Abstract: An apparatus for electrically connecting a polyphase vessel distribution system of a vessel to a polyphase land supply system having a supply system connection disposed on land to be connected to a vessel system connection of the vessel distribution system at least in sections by at least one cable connection, enables a fast and secure connection of the land supply system to the vessel distribution system. During normal operation, vessel movements can be reliably compensated by at least one articulated arm used as a support for one or more cable connections. The articulated arm has arm segments interconnected by at least one articulated connection. A joint drive is associated with each articulated connection for mutually pivoting the arm segments interconnected by the articulated connection, which is associated with the joint drive.

Abstract: The invention relates to a device for inductively transmitting electrical energy to or from a mobile object (3) that is located on a roadway or rail, is at a standstill or in motion, and comprises a load and/or an energy store, comprising a floor inductor (5) that is associated with the roadway (1) and comprises a plurality of first induction coils (4) that are arranged along the roadway (1) or rail, are connected to a current source, and have a magnetically conductive iron core (6) for generating a magnetic field directed toward the moving object (3). An inductive wheel (8) attached to the moving object (3) comprises a stationary second induction coil (9) having a magnetically conductive iron core (10) and magnetically conductive wheel disks (11, 12) that are directed toward the roadway (1) or rail and connected to said magnetically conductive iron core on both sides.

Abstract: In a method of operating a winding drum, in particular of cranes, for a line to be reeled in or paid out, a hydraulic motor is activated by a control block which has a hydraulic valve assembly comprised of two pressure control valves respectively arranged in a feed line and a return flow line, for operating the winding drum. The pressure control valves are provided to set a pressure differential on the hydraulic motor in order to maintain a defined tautness of the line being reeled in or paid out.

Abstract: An apparatus for electrically connecting a polyphase vessel distribution system of a vessel to a polyphase land supply system having a supply system connection disposed on land to be connected to a vessel system connection of the vessel distribution system at least in sections by at least one cable connection, enables a fast and secure connection of the land supply system to the vessel distribution system. During normal operation, vessel movements can be reliably compensated by at least one articulated arm used as a support for one or more cable connections. The articulated arm has arm segments interconnected by at least one articulated connection. A joint drive is associated with each articulated connection for mutually pivoting the arm segments interconnected by the articulated connection, which is associated with the joint drive.

Abstract: The invention relates to a device for inductively transmitting electrical energy to or from a mobile object (3) that is located on a roadway or rail, is at a standstill or in motion, and comprises a load and/or an energy store, comprising a floor inductor (5) that is associated with the roadway (1) and comprises a plurality of first induction coils (4) that are arranged along the roadway (1) or rail, are connected to a current source, and have a magnetically conductive iron core (6) for generating a magnetic field directed toward the moving object (3). An inductive wheel (8) attached to the moving object (3) comprises a stationary second induction coil (9) having a magnetically conductive iron core (10) and magnetically conductive wheel disks (11, 12) that are directed toward the roadway (1) or rail and connected to said magnetically conductive iron core on both sides.

Abstract: Arrangement for the relative relocation of a current collector relative to the trolley wire includes an electric drive coupled to a pivoting shaft of the current collector pressed against the trolley wire by force of a spring; with a rapid-action lowering unit in the form of a piston-cylinder aggregate integrated into a actuating member and provided in the form of an energy storage reservoir under pressure, so that the energy storage and the electrical drive are coupled with a sensor coupled to the current collector.

Abstract: Arrangement for the relative relocation of a current collector relative to the trolley wire includes an electric drive coupled to a pivoting shaft of the current collector pressed against the trolley wire by force of a spring; with a rapid-action lowering unit in the form of a piston-cylinder aggregate integrated into a actuating member and provided in the form of an energy storage reservoir under pressure, so that the energy storage and the electrical drive are coupled with a sensor coupled to the current collector.

Abstract: The invention relates to an arrangement (1) for the contactless transmission of data between a rotating component and a stationary component by means of light signals which are transmitted by a projector (2) and detected by a receiver (4). According to the invention, a ring-shaped light-conducting body (5) which consists of a transparent material and has integrated reflecting prisms is integrated between the projector (2) and the receiver (4). The exit surface (10) of the light-conducting body (5) opposite the receiver (4) is matt. The projector (2) is allocated to the stationary component and the receiver (4) is allocated to the rotating component This enables light signals to be permanently transmitted from the stationary component to the rotating component, with a high data rate at a high relative speed.

Abstract: A signal conductor for high-frequency signals has a first carrier layer and a second carrier layer each having a suitable dielectricity. At least one electrically conducting signal path is provided and is positioned at a lateral spacing between first and second electrically conducting ground paths. The electrically conducting signal path and the first and second electrically conducting ground paths are positioned between the first and second carrier layers. A first shield is connected to the first carrier layer at a side of the first carrier layer facing away from the second carrier layer. A plastic sheeting is connected to the second carrier layer at a side of the second carrier layer facing away from the first carrier layer. A second shield is connected to the plastic sheeting remote of the second carrier layer. The plastic sheeting has connection lugs, and the second shield has a cutout at a location where the connection lugs are arranged on the plastic sheeting.

Abstract: A device for digital data transmission includes a U-shaped support rail and a plastic strand which can be clamped into the U-shaped support rail. A strip-like metal contact conductor is mounted on a portion of the inner side of the plastic strand located frontally opposite and at a distance from an insertion gap for a collector shoe which is longitudinally movable in the support rail. The contact conductor contacts a contact body of the collector shoe. Compared to the plastic strand, the contact conductor has a significantly smaller thickness. A shielding member is provided between the inner side of the plastic strand and the support rail. The shielding member has shield contact surfaces which interact with a contact piece of the collector shoe. The contact conductor is clamped into a longitudinal channel of the plastic strand which is bent into a circular shape. The plastic strand is locked to the support rail.