Abstract: A planetary type gear unit comprising a planet carrier with a planet bogie plate and at least one planet shaft, whereby on both sides of the bogie plate a planet wheel is mounted on the planet shaft by taper roller bearings, whereby the planet shaft is provided with an axially displaceable piece on each of its extremities forming an abutment which provides an axial support for the inner bearing rings of the taper roller bearings and with a tensioning elements by which the axially displaceable pieces can be displaced to one another for controlling the pre-tensioning on the taper roller bearings.

Abstract: Wind turbine drive which is formed of a rotor with a rotor shaft and of a transmission box with a planetary gear unit which is connected to the rotor shaft, which drive is of the type whereby the transmission box is supported by the far end of the rotor shaft and is provided with a reaction arm, whereby the rotor shaft is bearing-mounted with at least one bearing which is directly fixed to the nacelle and a second bearing which is either fixed to the nacelle or which is part of the transmission box, whereby the planet carrier of the planetary gear unit is bearing-mounted in the gearbox via one bearing at the most.

Abstract: A planet carrier of a planetary stage, the planet carrier having a bogie plate, both sides of which planet wheels can be mounted, characterized in that the planet carrier with its bogie plate is made as one monolithic piece.

Abstract: A planet carrier of a planetary stage, the planet carrier having a bogie plate, both sides of which planet wheels can be mounted, characterized in that the planet carrier with its bogie plate is made as one monolithic piece.

Abstract: A planetary type gear unit comprising a planet carrier with a planet bogie plate and at least one planet shaft, whereby on both sides of the bogie plate a planet wheel is mounted on the planet shaft by taper roller bearings, whereby the planet shaft is provided with an axially displaceable piece on each of its extremities forming an abutment which provides an axial support for the inner bearing rings of the taper roller bearings and with a tensioning elements by which the axially displaceable pieces can be displaced to one another for controlling the pre-tensioning on the taper roller bearings.

Abstract: Wind turbine drive which is formed of a rotor with a rotor shaft and of a transmission box with a planetary gear unit which is connected to the rotor shaft, which drive is of the type whereby the transmission box is supported by the far end of the rotor shaft and is provided with a reaction arm, whereby the rotor shaft is bearing-mounted with at least one bearing which is directly fixed to the nacelle and a second bearing which is either fixed to the nacelle or which is part of the transmission box, whereby the planet carrier of the planetary gear unit is bearing-mounted in the gearbox via one bearing at the most.

Abstract: Lens fixture for removably attaching a lens at an apparatus, which consists at least of, on one hand, a seat at the lens or at an adapter piece and, on the other hand, an attachment mechanism at the apparatus, which mechanism at least is composed of a carrier structure with an opening for providing the lens or adapter piece therein, and an elastically working pressing system comprising one or more substantially radially working pressing elements, which pressing system can cooperate with said seat of the lens, the adapter piece, respectively, and, in coupled condition of the lens or the adapter piece, exerts a permanent axial pressure force onto this latter, wherein the lens fixture comprises pressing elements formed by spring wire.

Abstract: Lens fixture for removably attaching a lens at an apparatus, which consists at least of, on one hand, a seat at the lens or at an adapter piece and, on the other hand, an attachment mechanism at the apparatus, which mechanism at least is composed of a carrier structure with an opening for providing the lens or adapter piece therein, and an elastically working pressing system comprising one or more substantially radially working pressing elements, which pressing system can cooperate with said seat of the lens, the adapter piece, respectively, and, in coupled condition of the lens or the adapter piece, exerts a permanent axial pressure force onto this latter, wherein the lens fixture comprises pressing elements formed by spring wire.