Pendant control system for pendant supported boom

Details Pendant control system for pendant supported boom Pendant control system for pendant supported boom

B - Operations, Transporting

66

C

212/24

B66C 23/04 (2006.01) B66C 23/82 (2006.01)

Patent

CA 1228839

ABSTRACT OF THE DISCLOSURE A pendant control system for pendant supported multi-section telescopic boom is disclosed for paying out or hauling sufficient pendant rope in response to detect- ing changes in the boom-mast angle from a desired angle Y thereby preventing the free end of the boom from raising due to extension and dropping due to retraction of the boom when the outer end of the boom is supported by pen- dant ropes. The system also provides means for pivoting the mast between a raised boom supporting position and a lowered transport position while maintaining tension on the pendant lines.

431436

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