Abstract: The tank is a modified form of the lobed tank described in British Pat. No. 1522609, whereby the tank ends are of simpler constructional form. Thus, the tank comprises, top, bottom and two opposed side walls (1 to 4) each consisting of parallel, part-cylindrical lobes (11) which are connected and tied together by tie-plates (13, 14) and elongated armed insert elements (16, 17 and 17a). The invention is characterized in that each one of said other two opposed side walls (5, 6) comprises at least two part-lobes (11c) which present straight edges to which the common straight end edges of a series of two-way corner transition (12c) and part-transition (12d) pieces are joined, and in that the end of each part-lobe (11c) has a respective part-transition piece (12d) joined thereto to present a curved edge to which a part-spherical three-way corner (12b) can be joined to close-off the side wall (5 or 6).

Abstract: The invention relates to liquefied gas containers, particularly liquefied gas ships, having a foamed plastics insulation system. The invention provides an arrangement for the corners/top edge of the insulation in which the foam plastic insulation material for each wall area is foamed onto a rigid outer support shell so that it stops just short of the corners/top edge of said shell. The edges of the foam are anchored by reinforcement mesh or the like bonded to the inner face of the foam, the mesh extending over the edges of the foam and being bonded by adhesive into the shell corners. In the case of the corners, a coving is laid across each corner and is bonded to the inner faces of the adjacent wall areas. Further foamed insulation is then built up behind the coving to the required thickness.