| 摘要 |
In the j-laying of a pipeline from an offshore floating vessel, the method for raising a pipe section from a horizontal position proximate the deck of the floating vessel to alignment with a mast for being connected to the end of the pipeline, comprising providing a main support arm which is pivoted from a horizontal position to a position parallel to the mast, providing a rotational axis mounted on the main support arm, providing grabbers mounted on the rotational axis to engage the pipe section on the deck, rotating the grabbers about the center of the rotational axis from a position below the rotational axis to a second position above the rotational axis, pivoting the main support arm and the pipe section to a position parallel to the mast, and delivering the pipe section to the mast.
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