| 摘要 |
A pipe handling clamp for use on a deep water pipe laying vessel. The arrangement includes an array of piston members constrained to move along a first axis towards and away from a fixed support, and an hydraulically operated wedge member is driven transverse to the first axis so as to act between each piston member and the fixed support to effect motion to clamp a pipe. The axial piston and radial piston having complementary inclined surfaces, keyed to one another, so as to push and pull the radial piston in response to hydraulic pressure in the respective chambers.
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