CRANE AND METHOD FOR HANDLING OF ONE OR MORE WIND TURBINE COMPONENTS
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United States of America
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Issued Date -
Apr 3, 2025
app pub date -
Jan 11, 2023
filing date -
Jan 11, 2023
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Abstract
A crane, in particular an offshore leg encircling crane for use on a jack up-vessel, includes a revolving superstructure with a crane housing to which a boom is connected. The crane includes a hoisting system and a luffing device for pivoting a boom up to an upright position and down. The luffing device includes first left-hand and right-hand luffing cable sheave sets provided at opposite sides at a top of a luffing frame structure, and second left-hand and right-hand luffing cable sheave sets provided at opposite sides of a head structure of the boom. A variable length luffing system extends from the luffing winch via the first left-hand and right-hand luffing cable sheave sets to extend in a luffing direction to the second left-hand and right-hand luffing cable sheave sets.
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