Abstract: An improvement for allowing service jobs to be performed on and around the tower top of wind-power plants, where it is very important that sufficient space is available to the personnel for the tools and the machine parts during service and maintenance jobs on the machinery and the turbine. At least one section (1) of the engine hood is articulated to an engine support floor (3) with the aid of a hinge connection (4), thus allowing the hood section (1) to be folded outwards and downwards to assume a horizontal position wherein it serves as a floor.

Abstract: The invention relates to a regulating device for maintaining constant the rotary speed in turbines of the type comprising a turbine hub and a number of turbine blades which are axially, but rotatably connected to the hub and have such a shape and are so aranged that each turbine blade in a flowing medium and by the action thereof is acted on by a torque about its longitudinal axis against the action of a spring device and acts on the turbine hub by a torque acting about the axis of rotation of the turbine.

Abstract: The disclosure relates to a loading apparatus comprising an outer boom and an extension boom (telescopic boom), wherein the C-shaped bight of the hydraulic line, which bight extends in a rearward direction longitudinally of the outer boom and the telescopic boom, is housed in its entirety in a space defined by the walls of the telescopic boom and the outer boom and so arranged that, in all positions of the C-bight at the movements of the bight during extension and retraction of the telescopic boom, the opposite parts of the loop in the area of transition to the C-bight are defined by two relatively fixed walls situated between adjoining surfaces of the telescopic boom and the outer boom.