Abstract: A floating support structure for an offshore wind turbine, comprises a float intended to be partly immersed and on which a wind turbine mast is intended to be assembled, and a counterweight connected to the float and intended to be immersed under the float. The float comprises a toroid or polygon-shaped main structure with at least five sides, a central tubular structure having a diameter adapted to receive the mast of the wind turbine and comprising a section able to be ballasted in order to adjust the waterline of the float, a first series of horizontal struts distributed about a vertical axis and connecting the main structure to the central structure, and a second series of oblique struts distributed about a vertical axis and connecting the main structure to the central structure at an angle comprised between 15° and 60° with the horizontal struts.

Abstract: A floating support structure for an offshore wind turbine, comprises a float intended to be partly immersed and on which a wind turbine mast is intended to be assembled, and a counterweight connected to the float and intended to be immersed under the float. The float comprises a toroid or polygon-shaped main structure with at least five sides, a central tubular structure having a diameter adapted to receive the mast of the wind turbine and comprising a section able to be ballasted in order to adjust the waterline of the float, a first series of horizontal struts distributed about a vertical axis and connecting the main structure to the central structure, and a second series of oblique struts distributed about a vertical axis and connecting the main structure to the central structure at an angle comprised between 15° and 60° with the horizontal struts.

Abstract: The invention concerns a new type of metal clad door. The metal clad door according to the invention is built from a unique internal metal frame with two external panels of galvanized sheet metal on either side of the frame. A sheet of insulating material such as polyurethane foam fills the space defined by the internal frame and the two external panels. The external panels are surrounded by a wooden edging which is mounted to the internal frame. The wooden edging surrounding the metal clad door provides easy fitting and adjustment since modifications which are to be made to the external dimensions are carried out very quickly by planing the wooden edging. Further, the door, according to this invention, gives a sound insulation much superior to the traditional doors with either wooden or metal external panels.