A bottom block assembly includes a bottom block defining a cavity and at least one opening passing through a portion of the bottom block. The assembly further includes a plurality of sheaves disposed at least partially within the cavity, each sheave having a central opening. The assembly further includes a sheave pin passing through the at least one opening in the bottom block and the central openings in the sheaves to rotatably couple the plurality of sheaves to the bottom block. The assembly further includes a plurality of captivating frame assemblies to be coupled to the plurality of sheaves, each of the plurality of captivating frame assemblies including a housing and a plurality of rollers rotatably mounted to the housing. Each captivating frame assembly is associated with a corresponding one of the sheaves. The assembly further includes a plurality of wires for coupling the plurality of captivating frame assemblies to the plurality of sheaves. Each wire is reeved around one of the sheaves and reeved through the corresponding captivating frame assembly.
Bottom block assembly
16.03.2021
Patent
Elektronische Ressource
Englisch
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