Splice device for splicing together under-sea optical cables

A splice device for splicing together two under-sea optical cables, each of the cables including a bundle of optical fibers inside a protective tube covered with a protective "inner" sheath, armoring wires which are stranded to form at least one layer on said inner sheath, and a protective "outer" sheath covering the armoring wires, the cables having their component parts separated from one another over those of their end portions which are to be interconnected, said splice device including a multifiber weld between the bundles of fibers of the cables, which fibers are left to project from their respective protective tubes, a metal support extending between the protective tubes and over the end portions of said protective tubes, and receiving the end portions of the armoring wires on its periphery, longitudinal locking means for longitudinally locking the support relative to the protective tubes, and pressure radial clamping means for pressure clamping the armoring wires radially on the support, wherein said support has an outside diameter greater than the outside diameter of the inner sheaths of the cables, is mounted so that it abuts between the inner sheaths of the cables, which inner sheaths constitute said longitudinal locking means, and receives the end portions of the armoring wires longitudinally tensioned and disposed in a single layer on its periphery, and wherein said radial clamping means are constituted by an outer metal sleeve mounted and crimped on said support and on the armoring wires between the support and the sleeve.