发明名称 Mast lifting apparatus and method
摘要 A mast lifting apparatus (1) for use in positioning and securing mast elements end on end to form a mast or tower. The apparatus includes a releasably attachable mast attachment block (3) adapted to support and guide a moveable beam (4) having a top end and, in use, to allow the beam to be raised relative to the mast attachment block that, in use, is attachable to a mast section. The top end of the beam is adapted with a pulley or sheave means (8), and a first means (11) adapted to lift a mast element into position and a second means (18) adapted for raising the beam.
申请公布号 NZ555764(A) 申请公布日期 2009.01.31
申请号 NZ20070555764 申请日期 2007.06.08
申请人 TENERGY NEW ZEALAND LIMITED 发明人 EATON, GEOFFREY PAUL
分类号 (IPC1-7):E04H12/34 主分类号 (IPC1-7):E04H12/34
代理机构 代理人
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