| 摘要 |
A docking head and plate assembly suitable for supplying services to pipeline laying equipment. A docking head which supplies services to welding and other equipment inside the pipeline has service connections attached to a bushing plate assembly which causes the service connections to engage or disengage with corresponding connections in a docking plate which is aligned adjacent the docking head and locked in position while the service connections are engaged. A drive assembly in the docking plate engages the bushing plate assembly to cause movement of the bushing plate assembly and service connections.
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