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MANUAL MECHANICAL FALL ARREST FOR TELESCOPING TOWERS
MANUAL MECHANICAL FALL ARREST FOR TELESCOPING TOWERS
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机译:伸缩塔的手动机械防坠落
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摘要
A fall arrest for a telescoping tower with a plurality of sections, which usesan apparatusattached to an external tower section, comprising a plate made of metal oranother suitablematerial, which can be rotated into place beneath or within an internal towersection by a leveror actuator, to stop the aforementioned internal section and a plurality ofadditional internalsections, from collapsing below the engaged plate and into the base section.
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