发明名称 SYSTEM FOR ASSEMBLING AND DISASSEMBLING A MAST
摘要 An apparatus for assembling or disassembling a mast comprising a plurality elongate mast sections adapted to be attached together in end-to-end configuration. The apparatus includes a lifting assembly for raising or lowering the mast from its bottom end, and a plurality of winches for reeling in or feeding out guy lines attached to the mast. The apparatus also includes a computer for controlling the operation of the winches so as to ensure the length of guy line fed out of the winches is such that the mast is supported in a substantially vertical position.
申请公布号 CA2003302(A1) 申请公布日期 1990.06.15
申请号 CA19892003302 申请日期 1989.11.17
申请人 FIBER MATERIALS, INC. 发明人 VERRY, EDWARD H.
分类号 E04H12/20;E04H12/34;(IPC1-7):B66F11/02;B23P21/00 主分类号 E04H12/20
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