| 摘要 |
A grapple clamp to be mounted on an arm member, and comprising a clamp member and a universal joint assembly mounted between the arm member and the clamp member will be described herein. The clamp member comprises opposite side clamping tongs pivotally interconnected. The universal joint assembly comprises two joints. Each of the two joints has a pivot axis substantially perpendicular to the other for articulating the clamp member in a variety of directions. Hydraulic devices may be used to articulate both the clamping tongs and the clamp member.
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