Abstract: The strength members of the optical fibre cables to be jointed comprise inner and outer layers of high-tensile wires (9, 10; 9', 10') arranged on respective pressure-resistant tubes (5; 5'), each containing an optical fibre package (not shown). The strength members are jointed by trapping the wires between a quill (15) and a ferrule (16) pressed towards the quill. The quill (15) is of a relatively hard steel and serves to partially reinstate the pressure tube between the ends of the cables, whereas the ferrule (16) is of a relatively soft steel. For jointing of two dielectric covered elements the ferrule is subsequently encapsulated in a dielectric moulding (27). A thin-walled reinstatement tube (17) is arranged between the quill (15) and one tube (5'). The cavity in the reinstatement tube (17) is larger in diameter than the cavity in the tubes (5 and 5').

Abstract: A fibre optic lightweight submarine cable (2) is terminated to a tail cable (4) and anchored to a repeater housing (9) with preformed high-tensile steel anchor wires (1,3). The wires are clamped at one end (10) between a collar (7) and frusto-conical clamping segments (11) and strapped at the other end with binders (14). Over the tail cable portion is a spring (6) located on ferrules (6A, 7A) and acting to prevent the anchor wires crushing the tail cable (4).

Abstract: Two cable ends have their cores jointed in a conventional manner. The ends of armor wires, laid up on the cores, are laid with overlap over the core joint. A sleeve with radiused and increased external diameter ends is arranged over the overlap at the core joint. The ends of the armor wires are turned back over the ends of the sleeve such that they come to rest on the outermost surface of the sleeve and are secured thereto by strappings. The outer surface of the sleeve may be coated with an adhesive and gritted to increase the adhesion between the armor wires and the sleeve. The thus spliced armor wires may be provided with a protective winding. The armor splice is such that only a low elongation of the armor wires is possible when longitudinal force is applied to the cable, thus making it particularly suitable for an armored submarine cable including optical fibres.

Abstract: Ferrule and method of jointing two fibre-optic communications cables having optical fibres arranged in a tubular strength member, employing a tubular ferrule body, which body comprises one or more longitudinally-split portions, to transmit the strain between the strength members of the two cables. The strength member at each cable end is provided with a clamping arrangement; the optical fibres of the two cables are jointed; in one embodiment a split ferrule body is assembled over the fibres and joints, and a compression nut screwed onto each end of the ferrule body to clamp the body portions together and to the strength member clamping arrangements.

Abstract: A termination between a lightweight submarine coaxial cable (1) and a tail cable (2) connectible to a submersible repeater includes slip inducing means (8, 14) arranged on the joint (4) and a portion of the submarine cable (1) adjacent the joint such that armour wires arranged on a predetermined length of the submarine cable (1), including the portion, and on the joint (4) will slip during transfer of tensile load from the cable (1) to the repeater housing and not cause compression forces that can damage the joint (4). The length of the armour wires applied directly to the submarine cable sheath is chosen to be sufficient to transfer the tensile load on the cable safely to the repeater housing.

Abstract: A cable termination between a main coaxial cable and apparatus, such as a repeater housing. The outer conductor of the main cable is shielded by an effectively continuous tube of electrically conductive material extending from the end of the outer conductor of the main cable to the housing apparatus. A flexible bellows assembly can be used at the end of the tube connected to the repeater housing to accommodate relative movement between the cable and the repeater housing during installation.

Abstract: A method of jointing two fibre-optic communications cables (1), having optical fibres (2) arranged in a tubular strength member (4), employing a mechanical ferrule (9, 13) to transmit the strain between the strength members of the two cables. Each cable end is terminated into a ferrule sleeve portion, the optical fibres are jointed, and then the ferrule sleeve portions are secured together.

Abstract: A water-tight termination of a coaxial submarine cable to a tail cable including a piece-part polyethylene molding over a polyethylene/copper/polyethylene laminate and continuity braid. Applied heat externally bonds the laminate to a plastic internal core forming the dielectric and to the piece part to form a water barrier.

Abstract: A submarine cable is terminated to a tail cable outside a repeater housing anchorage. A flexible shroud covers the joint and a cable stopper holds the main cable to a tear-shaped anchor member through which the tail cable passes.

Abstract: A termination between a submarine coaxial cable and a submerged repeater housing. It employs an anchor assembly for transferring the load in the cable core to the repeater housing, and a protective boot assembly for surrounding and supporting the cable where it extends away from the anchor assembly. The boot assembly is rigidly connectible to the housing. Movement of the cable within the boot tube is permitted to a greater extent near the free end of the boot assembly than near the housing, by means of a flexible tube and bellmouth assembly, in order to cater for the stresses associated with the cable handling and recovery.

Abstract: An electrical connector which can be safely used under water. The conductor pins of one-half of the connector are engageable with sockets in the other half of the connector. The sockets are disposed in a cavity filled with a semi-mobile compound. The pins pass through a self-sealing diaphragm before entering the cavity and engaging the sockets. Pressurizing means is provided in the cavity to compensate for any loss of the compound during usage of the connector.