An innovative drum for use with a hoist assembly is disclosed. The drum incorporates a layered rope design wherein each layer utilizes the support of the subsequent layer for accurate positioning of individual wraps. Multiple lines are achieved by combining any number of individual drums together along a support structure.
HOIST ASSEMBLY DRUM
2019-05-09
Patent
Electronic Resource
English
IPC: | B66D Haspeln , CAPSTANS |
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