Abstract: A method of mounting a composite heat-insulating wall structure for a tank for the transportation of liquefied gases, wherein a wall of heat-insulating material is injected directly onto the secondary barrier formed by the ship's double hull, the primary barrier being secured on the insulating wall. This insulating wall is injected through the medium of moulds.

Abstract: A relatively thin, flexible, impervious, sheet-like laminated building material comprising at least three continuous overlying layers of yielding material adapted to withstand very severe cold conditions, bonded together and consisting of at least one first mechanically strong supporting endmost layer; at least one impervious film-like layer and at least one second endmost lining layer providing at least a mechanical and at least temporary protection.

Abstract: A system for loading and/or unloading at sea a transportation vessel conveying incoherent products comprising ship mooring means, an arrangement for transferring or handling incoherent goods comprising a loading and/or unloading tower supported by the bottom of the sea and partially submerged as well as a movable loading boom associated with said tower, said mooring means being separated from or independent of said cargo transfer or handling arrangement.

Abstract: A conduit for conveyance of a fluid and especially liquefied natural gas and comprising an internal circulation pipe for said fluid surrounded with a sheath of insulating material protected by an outer rigid covering, said sheath comprising several fluid-tight lap joints of coaxial structure and variable lap surface and said circulation pipe being interrupted at joint emplacements thus communicating with corresponding fluid-tight annular cylindrical spaces defined between a respective stationary coaxial sleeve surrounding a gap of said circulation pipe and two corrugate or waved compensators respectively connected between one sleeve end and the external surface of said circulation pipe at either side of said gap.

Abstract: A method of processing an impure effluent fluid provided in two gaseous and liquid phases, respectively, for regenerating same to a pure re-usable substance, consisting in converting the gaseous phase into a liquid phase; subjecting each liquid phase separately to an independent fractional distillation for extracting said pure substance therefrom in the vapor state as an overhead product; condensing said pure substance into liquid condition, separately collecting the condensate from each fractional distillation by gathering same to form a separate storage and taking at least one part therefrom which will be cooled through heat exchange with a refrigerating fluid and jointly recovered.

Abstract: A fluid-tight heat insulated tank wall structure comprising a rigid outer wall, an inner membrane-like impervious primary barrier wall and an intermediate heat insulating material carrying said inner wall and consisting of: an inner end layer of balsa wood or polyvinyl chloride, one composite laminated layer of sandwich panels composed of two spaced plywood plated and filling material interposed therebetween; and an outer end layer of cellular material.

Abstract: A method of building a composite wall construction comprising the steps of applying patches of a deformable cement-like stuffing or packing compound onto the outer faces of lining elements and then applying said lining elements to a rigid self-supporting wall while gradually squashing said patches of compound by means of pressure exerted thereon through abutment means by screwing nuts thereon.

Abstract: A device for supporting a rigid tank for very cold or hot fluids in a vehicle comprising a continuous annular horizontal foot-plate surrounding and integral with a tank and freely resting on a continuous annular bed-plate forming the top of the resiliently bearing base secured to the vehicle structure and surrounding the tank, heat insulating material being interposed between said foot- and bed-plates and consisting of blocks juxtaposed to form a ring with the top surface of which the foot-plate is in sliding contact.

Abstract: An enclosure for confining radio-active products or waste comprising a fluid-tight underground rigid supporting outer shell of reinforced concrete opening to the outside through a reinforced concrete chimney, an innermost vessel for containing said radioactive products or waste, surrounded by said shell and made from thin corrugated stainless steel sheet material, an intermediate vessel made from thin corrugated stainless steel sheet material, located between said shell and innermost vessel and surrounding the latter, means for cooling said vessels through fluid flow circulation by natural convection within ducts adjacent to at least one of said vessels and means for feeding and/or discharging said radio-active products or waste into or from said innermost vessel.