| 摘要 |
A support structure for lifting precast blocks includes a longitudinal support arm having a cable suspended therefrom at a multiple suspension points. Several cradles are connected to the cable in positions such that each cradle is positioned between and below a pair of the suspension points. Each cradle may be attached to a sheave that movably connects it to the cable. Each cradle may receive a portion, such as a handle, of a lifting tool below the support arm.
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