发明名称 Multiple action hoist
摘要 A method and apparatus for transferring the ends of power lines between first and second supports including a frame having a pair of independently operable hoist mechanisms which each include a tension line with an attachment element at the end thereof, with the drums being rotatable by respective ratchet mechanisms for enabling the transfer of the end of a tension line from one support location to a different support location.
申请公布号 US8991790(B2) 申请公布日期 2015.03.31
申请号 US201313756794 申请日期 2013.02.01
申请人 发明人 Herman Andrew
分类号 H02G1/08;H02G1/02 主分类号 H02G1/08
代理机构 Leydig, Voit & Mayer, Ltd. 代理人 Leydig, Voit & Mayer, Ltd.
主权项 1. A hoist apparatus for transferring the ends of power lines between first and second supports at different locations comprising: a frame, a pair of independently operable hoist mechanisms supported by the frame, a first attachment element affixed to one end of the frame for enabling securement of the frame at a location adjacent the first support, said hoist mechanisms each including a respective tension line receiving drum rotatably supported by the frame and a tension line having an attachment element at one end and being coupled at its opposite end to the drum for winding and unwinding about the drum, said drums each having a respective ratchet mechanism for enabling selective ratcheted rotational movement of the drum for winding and unwinding the tension line from the drum such that one tension line may be secured to a power line to be removed from the first support and the attachment member of the other tension line may be simultaneously secured to a location adjacent the second support at the different location.
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