Cable anchorage
AssigneeStc PLC
InventorCharles J. Brown
Life of this patent
Estimating the term…
Abstract
A cable anchorage for anchoring a submarine cable wire strength member comprises conically tapered parts (2,4,5), at least one of which has a surface (2C, 4B), roughened by tungsten carbine grit evenly distributed over and firmly bonded to the surface, prior to assembly of the parts of the anchorage. The grit size is chosen so that a sufficient locking mechanism is achieved but the grit indentations in the wire strength member are not deep enough to weaken the wires (3B, 3C).
Claims11
A clamp assembly for a wire tensile strength member comprising first and second clamping parts for clamping between them the wire member, means for holding the parts clamped together, at least one of the parts having a clamping surface roughened by grit firmly honed to said surface and harder than the material of the wire member.
A clamp assembly for an annular tensile strength member formed of a plurality of wires, said assembly comprising housing parts defining a through-hole with an axially tapered surface, a hollow circular ferrule insert having an axially tapered outer surface, a ferrule insert retaining means adapted for retaining said insert in said hole such that the surface of the hole and said outer surface taper in the same direction, wherein at least one of said tapered surfaces has hard grit bonded thereto and uniformly distributed over said at least one surface.
A method of clamping a wire tensile strength member to a clamp assembly comprising first and second clamping parts, at least one of said parts having a clamping surface roughened by grit firmly honed to said surface and harder than the material of the wire member, said method comprising introducing said wire member between said parts and moving the parts relative to each other to clamp the member between said parts and so that the grit becomes at least partially embedded in the wire member.
Dependencies are inferred from the claim text.