B - Operations – Transporting – 63 – B
Patent
B - Operations, Transporting
63
B
114/46.8
B63B 21/08 (2006.01) B63B 21/22 (2006.01) F16B 45/02 (2006.01) F16G 15/04 (2006.01)
Patent
CA 2032608
The present invention provides a line laying device used for platform mooring systems which consists of a pair of claws, each with twin hooks. One claw swivels about a spindle on the other claw, where the one claw has its hooks joined together and is provided with a shoulder. A pivotal lock biased by a spring is provided with a small wheel at an end remote from a second end mounted on the one claw by means of a second spindle. The other claw is provided with a stop to limit travel of the lock. A ring to which a wire rope may be tied is carried by the other claw. Also provided by the present invention is a line laying device for lowering a chain into a body of water wherein the chain is secured at one end to a surface vessel which includes a pair of claws pivotally coupled to each other for engaging an intermediate link of the chain. A pivoted lock on one of the claws engages a shoulder on the other claw to maintain the claws in clamping engagement on the link until such time as the chain is lowered to the point where the chain is substantially vertically extended whereupon an adjacent link above the link engaged by the claws will pivot about the link engaged by the claws into engagement with the pivoted locking member to disengage the locking member from the shoulder, thereby allowing the claws to be disengaged from the link and retrieved by means of a wire rope secured to one end of one of the claws.
Gowling Lafleur Henderson Llp
Petroleo Brasileiro S.a. - Petrobras
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