Abstract: A platform device includes at least one floatable platform, which is provided for supporting at least one energy generating unit at least partially above a water level. The at least one floatable platform comprises a plurality of tubes providing a buoyant force and comprises a carrier structure, which is fastened to the tubes.

Abstract: Apparatus for raising and lowering boats in water. The apparatus consists essentially of at least one float that is attached to the hull of the boat and is guided along the surface of the hull of the boat at least partially below water level when a force is applied to it. Preferably at least two floats that are permanently or displaceably attached to the apparatus support in the longitudinal direction and are provided on the side of the support which is intended to accommodate the hull of a boat. The entire device is designed so it is adjustable in height and is connected to a stationary land-based mooring point with an articulated joint. This device is especially reliable for raising a boat out of the water and docking the boat above the water line without risking canting. This result is possible in an inexpensive and very simple manner with the invention. The usable width of the entire device is greatly reduced from previously known such devices.

Abstract: Apparatus for raising and lowering boats in water. The apparatus consists essentially of at least one float that is attached to the hull of the boat and is guided along the surface of the hull of the boat at least partially below water level when a force is applied to it. Preferably at least two floats that are permanently or displaceably attached to the apparatus support in the longitudinal direction and are provided on the side of the support which is intended to accommodate the hull of a boat. The entire device is designed so it is adjustable in height and is connected to a stationary land-based mooring point with an articulated joint. This device is especially reliable for raising a boat out of the water and docking the boat above the water line without risking canting. This result is possible in an inexpensive and very simple manner with the invention. The usable width of the entire device is greatly reduced from previously known such devices.

Abstract: A rope clamp, in which the rope (7) is guided through rope openings (13) of several clamping members (11) which can be pivoted parallel to one another, secures the rope (7) automatically. To enable the holding force to be increased and the clamping effect to be accurately adjusted, the rope openings (13) have a considerable length and the clamping members (11) are inclined, in their open position which permits a free passage of the rope, against the rope pulling direction (10). Preferably, plane clamping plates of approximately the same thickness as the rope are used. The cylindrical rope openings are made obliquely in the clamping plates and, in the inclined open position of these, are aligned with one another along the same axis. A hand lever (12) can be moulded onto the front clamping plate. Furthermore, a spring can be provided, which presses on the rear clamping plate in the rope pulling direction and, at the same time, serves to detain the lever in the open position.