Device (1) for showing a marking (A) in the form of a distance to be observed between a game apparatus (15), in particular a football, and participants on a playing field (22) of a sports facility (2), having a display device (3) for projecting light beams (L) representing the marking (A) onto the playing field (22), wherein the projected light beams (L) display the distance to be observed and can be projected in the shape of a circle, at least in sections, in particular at a distance of 9.15 m around the game apparatus (15) on the playing field (22), wherein the display device (3) is jointly movable with a transport device (8) that is movable above the sports facility (2).

The lifting device includes a first drum around which a wire is wound, a first motor that rotates the first drum, a second drum around which the wire fed from the first drum is wound, and a second motor that rotates the second drum. The first motor is driven to rotate the first drum so as to lift the wire, and the second motor is driven to rotate the second drum to lift the wire fed from the first drum.

The invention relates to a cable drum for a cable winch of a cable drive, having a drum body and two guard plates which surround the drum body on the face sides and delimit a winding space therebetween, wherein at least one of the guard plates has at least one inner wall part which is adjustable axially in the direction of the drum longitudinal axis such that the distance between the guard plates is adjustable.

The invention relates to a cable drum for a cable winch of a cable drive, having a drum body and two guard plates which surround the drum body on the face sides and delimit a winding space therebetween, wherein at least one of the guard plates has at least one inner wall part which is adjustable axially in the direction of the drum longitudinal axis such that the distance between the guard plates is adjustable.

A management system for a closed environmental facility includes one or more motorized tubular hoist mechanisms operable to adjust the height of environmental modules above one or more groups of plants. A central controller provides signals over a wireless communication network to command the hoist mechanisms to move the environmental modules to a desired position. In further embodiments, environmental sensors provide data to the central controller and the controller automatically calculates desired positions of the environmental modules based on the data and commands the hoist mechanisms to achieve the desired positioning.

A management system for a closed environmental facility includes one or more motorized tubular hoist mechanisms operable to adjust the height of environmental modules above one or more groups of plants. A central controller provides signals over a wireless communication network to command the hoist mechanisms to move the environmental modules to a desired position. In further embodiments, environmental sensors provide data to the central controller and the controller automatically calculates desired positions of the environmental modules based on the data and commands the hoist mechanisms to achieve the desired positioning.

A winch for a power generating system using a tethered airborne device, the winch comprising a drum rotatable about its main axis a guiding apparatus arranged to guide an airborne device tether to wind and unwind around the drum; wherein the drum is rotatable relative to a pivot point to move in a first plane and the guiding apparatus is disposed relative to the drum to move along part of an orbital path around the drum in a second plane substantially perpendicular to the main axis of the drum, thereby allowing alignment of the winch with respect to an unwound length of the tether.

A winch for a power generating system using a tethered airborne device, the winch comprising a drum rotatable about its main axis a guiding apparatus arranged to guide an airborne device tether to wind and unwind around the drum; wherein the drum is rotatable relative to a pivot point to move in a first plane and the guiding apparatus is disposed relative to the drum to move along part of an orbital path around the drum in a second plane substantially perpendicular to the main axis of the drum, thereby allowing alignment of the winch with respect to an unwound length of the tether.

Disclosed is a motorized winch system having a frame, a motor, and a drum with a first end and a second end connected to the motor. The system has a winch cable configured to wind around the drum with a first end connected to the drum, having a winding portion and a distal portion. The system has a winch cable locator assembly with a cam bar rotatably mounted to the frame, a cam follower connected to the cam bar such that the cam follower slides from the first end to the second end of the drum and reverses to slide back to the first end of the drum, and a cable guide coupled to the cam follower, configured to guide the cable onto the drum. The system has a removable cam gear with an operating position operably connected to the motor, and a manual position disconnected from the motor.

A handling device includes a winch comprising a frame, intended to be attached to a structure of the surface vessel and a first drum capable of turning relative to the frame about a first rotation axis and an assembly comprising at least one second drum which surrounds the first drum and is capable of turning relative to the frame about a second rotation axis substantially parallel to the first rotation axis, the winch being capable of being in a decoupled state wherein the first drum and the second drum are rotationally decoupled about the first rotation axis and the second rotation axis so as to allow a traction cable to be wound around the first drum during a first winding step wherein the first drum is rotated about the first axis, the second drum being capable of being in an open state wherein the second drum has a receiving opening that a towed body is capable of passing through in order to enter the interior of the space that surrounds the first drum and that is surrounded by the second drum, the winch being capable of being in a coupled state wherein the first drum and the second drum are rotationally coupled about the second rotation axis so as to allow a flexible elongate body to be wound around the second rotation axis during a second winding step wherein the second drum is rotated about the second axis.