| 摘要 |
This invention provides apparatus for supporting extremely heavy weights, such as a lengthy horizontal pipe string for ocean floor mining or dredging, from a downwardly facing horizontal ledge surface. The apparatus comprises a pair of support plates arranged evenly about the surface to be supported. Each plate is reciprocally movable toward and away from the object to be supported and is pivotably supported about two transverse horizontal axes. One axis preferably extends radially relative to the centerline of the surface to be supported.
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