METHOD AND APPARATUS FOR RAISING OR LOWERING A LOAD PARALLEL TO A WIND TURBINE TOWER.
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United States of America
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Issued Date -
Jan 2, 2020
app pub date -
Nov 10, 2017
filing date -
Nov 10, 2017
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Abstract
Provided is a method for raising or lowering a load parallel to a wind turbine tower, including raising or lowering the load using a cable, and exerting a force acting on the load towards the tower using guiding means supported at the tower. In the present method, a raising or lowering operation is assisted and the undesired movements of the load during raising or lowering are reduced.
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