Abstract: A piston for a cylinder, in particular for a hydraulic piston storage or a hydraulic cylinder having a multipart configuration with two piston parts (11) made of material nontransformable under pressure, subjected to the pressure prevailing in the cylinder, which piston parts comprise, between them, a radially expandable sealing member, with the piston parts (11) arranged such that the pressure in the cylinder axially acting on them effects an increase in the pressure of partial areas of the sealing member against the cylinder wall, wherein the sealing member is made of a support part (12) consisting of the deformable material for a piston seal (20) and at least one piston seal (20) inserted in a groove (19) formed on an outer circumferential surface of the support part (12), and that the cylindrical support part (12) has tapers (13) on both sides with across-piece (14) remaining between them for accepting the two engaging piston parts (11) in such a way that the support part (12) overlaps the piston parts (1

Abstract: A method of wiring a building and a building so wired where there is a pre-made loom (1) which has a plurality of spaced apart sockets (15, 16, 17) at regular intervals along a length of the loom (1) and which is strung through the building placing thereby conveniently positioned female sockets (15, 16, 17) at regular locations along the length of the loom (1) and where outlets are then connected at a most conveniently any one of the sockets (15, 16, 17) by having for each a male plug (25) to be connected thereto where the male plug (25) itself connected electrically to a unit such as a mounted switched outlet, or electrical appliance or the like.