Abstract: A flexible pipe comprising a first set of stress bearing elements extending substantially the whole length of the pipe, for accommodating maximum hoop stress resulting from flow of pressurized fluid through the pipe, and a second set of stress bearing elements extending substantially the whole length of the pipe for accommodating longitudinal stress resulting from a flow of pressurized fluid through the pipe.

Abstract: A method of reducing the liquid content of air-permeable material in tubular form, especially for reducing the moisture content of tubular fabric, involves moving the tube of material longitudinally through a device for applying suction to the outer surface of the tube, either in a single area which extends all round the tube or in a plurality of areas which together extend substantially all round the tube.Means for carrying the method into effect may comprise one or more hollow members defining a frame to surround the tube of material from which liquid is to be removed. Each hollow member has apertures in its inwardly-facing wall, each of which apertures communicates with the hollow interior of its hollow member, and means is provided for creating a sub-atmospheric pressure in each hollow member.