A method for constructing a wind turbine concrete floater including a central connector from which radial arms extend, the central connector carrying a central stability tower, and each arm carrying an outer stability tower. The method includes prefabricating the arms, central connector and at least parts of the stability towers, pre-assembling the central connector with one arm to form a primary pre-assembly, mounting temporary flotation devices onto the arms to provide additional buoyancy to them, floating the primary preassembly and floating the other arms of the floater, and assembling offshore said primary preassembly with said other arms.

In a membrane type heat insulation system for a cryogenic liquefied gas carrier cargo tank and a liquefied gas fuel container, a secondary heat insulation layer comprises a plurality of panels which are stacked in multiple layers while each pair of upper and lower panels is arranged to intersect each other, whereby heat loss which may occur in the gap between the panels can be minimized and deformation due to a temperature difference can be minimized.

In a membrane type heat insulation system for a cryogenic liquefied gas carrier cargo tank and a liquefied gas fuel container, a secondary heat insulation layer comprises a plurality of panels which are stacked in multiple layers while each pair of upper and lower panels is arranged to intersect each other, whereby heat loss which may occur in the gap between the panels can be minimized and deformation due to a temperature difference can be minimized.

The invention has for object a system and a method for the realization of floating platforms formed by the aggregation of floating forms in reinforced concrete, the union set of the modules is made integral forming a single plate inserting and pulling special steel cables that cross the entire platform in sheaths arranged in the walls of the modules themselves, the pulled cables, locked in this position, compress the plate to increase resistance, the present method and system are also characterized by the fact that the quota of the platform does not vary with the tides and the loads to which it is subjected.

The invention has for object a system and a method for the realization of floating platforms formed by the aggregation of floating forms in reinforced concrete, the union set of the modules is made integral forming a single plate inserting and pulling special steel cables that cross the entire platform in sheaths arranged in the walls of the modules themselves, the pulled cables, locked in this position, compress the plate to increase resistance, the present method and system are also characterized by the fact that the quota of the platform does not vary with the tides and the loads to which it is subjected.

The present invention relates to a novel apparatus and method for installing split line cutters on marine propeller shafts. The apparatus features a clamshell design comprising an upper and lower half, each with an inner cavity configured to accommodate a portion of the split line cutter. A hinge mechanism connects these halves, facilitating easy opening and closing around the propeller shaft. Key to this invention is a captive screw retaining mechanism within the clamshell, designed to hold screws in place even when unfastened, thereby simplifying the installation process and preventing loss of components. The apparatus includes a screwdriver opening aligned with a bolt cavity, allowing for engagement of captive screws. Additionally, the invention features temporary closure mechanisms, for secure handling during installation, and a retaining hole for attaching a line. This invention offers significant improvements in the installation of line cutters, emphasizing safety, efficiency, and ease of use.

A floating marine platform and a method for manufacturing a floating marine platform by means of templates are provided. The floating marine platform comprises a central column, multiple peripheral columns circumferentially around the central column, and radially extending outriggers from the central column that connect the peripheral columns with the central column. The templates comprise an inner outrigger template, an outer outrigger template, a central column template and a peripheral column template. On a first location under a first temperature a first pair with the inner outrigger template and the central column template is formed, and on a second location under a second temperature a second pair with the outer outrigger template and the peripheral column template is formed. Subsequently the central column, the peripheral columns and the outriggers are formed by means of the templates, under different temperatures.