| 摘要 |
A lifting apparatus for non-metallic piles (10) including a pair of lifting devices (26, 28) which grip opposed faces (22, 24) of the pile (10). A sling (36) supported from an overhead crane (44) is connected to the lifting arms or handles (30) of the lifting devices (26, 28) for lifting of the pile (10). The lifting handles (30) are secured to cams 72 which include gripping teeth (76) effective upon lifting of handles (30) to engage the inner face (24) of pile (10) for gripping the pile (10) between backing edge (58) and inner face (24). A modification shown in FIGS. 5 and 6 provides a threaded screw (86A) which is received within an opening (89A) in the pile (10) for lifting of the pile (10).
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