Abstract A floating mooring arrangement, for example for transferring liquified natural gas between the sea bottom and a ship, comprises a tower resting on the sea bottom, and a pair of concentric annular members surrounding the tower and floating on the surface of the water. The outer of these has a buoyant arm rigidly connected thereto, to which the ship is connected. The inner of these is secured by anchors and anchor chains. Conduits extend from the sea bottom up through the tower and from a swivel at the top of the tower to pipes on the outer annular member, and thence to the ship. Clearance between the tower and the annular members is such that the latter cannot touch the tower within the range of movement afforded by the anchor chains.
Floating mooring arrangement comprising a first annular part held in place by anchors and anchor chains, a second annular part which is rotatable relative to the first part about a vertical axis and which has means thereon for mooring a ship thereto and further comprising a tower placed on the sea bottom and extending upward through said first annular part, conduits extending from the sea bottom upward via the tower, the upper end of said conduits through a swivel and flexible conduits being connected to pipes on the second annular part, said annular parts having inner diameters such that within the range of movability allowed by the anchor chains to the first annular part, said parts cannot touch the tower, said first and second annular parts riding on the surface of the water and being vertically movable relative to the tower.
Claim 2
Dependent Claim
141 words
Floating mooring arrangement comprising a first annular part held in place by anchors and anchor chains, a second annular part which is rotatable relative to the first part about a vertical axis and which has means thereon for mooring a ship thereto and further comprising a tower placed on the sea bottom and extending upward through said first annular part, conduits extending from the sea bottom upward via the tower, the upper end of said conduits through a swivel and flexible conduits being connected to pipes on the second annular part, said annular parts having inner diameters such that within the range of movability allowed by the anchor chains to the first annular part, said parts cannot touch the tower, said first and second annular parts riding on the surface of the water and being vertically movable relative to the tower.
Claim 3
Dependent Claim
22 words
An arrangement as claimed in claim 1, said second annular part comprising a ring with an arm having buoyancy tangentially connected thereto.