发明名称 SELF-ALIGNING APPARATUS
摘要 A self-aligning apparatus for a lifting system includes a structure which includes a first element having a first projecting free end and a second projecting free end which each receive at least one sheave at a point of attachment to the first element, and at least two first points of rotation. The at least one sheave cooperates with at least one wire. The at least two first points of rotation are arranged above the at least one sheave's point of attachment to the first element so that the apparatus self-aligns during use in an uneven loading event.
申请公布号 US2017030152(A1) 申请公布日期 2017.02.02
申请号 US201515302168 申请日期 2015.04.08
申请人 MHWIRTH AS 发明人 OTTERSLAND GJERULF
分类号 E21B19/00;B66D3/08;E21B19/08 主分类号 E21B19/00
代理机构 代理人
主权项
地址 KRISTIANSAND NO