Abstract: A coupling for conduit tubes (16, 16?) for carrying optical fibres or optical fibre units, comprising a body which has two entries (18, 18?), both entries having associated therewith means (20, 20?) to secure the body to conduit tubes inserted into the entries, the body being further provided with a space or chamber (42) between the entries through which one or more optical fibres or optical fibre units may pass, the body having a third entry (34) arranged to enable insertion of sealing material into the space, and means, such as deformable seals (26, 26?), to maintain the sealing material within the space.

Abstract: A multi-tube terminal connector for connecting tubes into which optical fibres are to be installed by the blown fibre technique, comprising a first part (4) arranged to receive and fit onto a cable (1) of closely packed tubes, and a spreader (5) provided with guideways to splay the tubes received by the first part from their initially closely packed state to a spaced relationship where the spacing is greater than the spacing at the initially closely packed state, the arrangement being such that provision (3) is made so as to connect the connector to at least one further element.

Abstract: An apparatus for installing, by the blown fibre technique, at least one optical fibre or optical fibre unit (5) into a tube or tubular passageway (6), comprising a length of optical fibre/optical fibre unit on a reel or cartridge (8) which is contained within a pressure vessel (2), the length of optical fibre/optical fibre unit being preterminated at its inside tail by a connector (32).