FLOATING LIFTING FACILITY OF HIGH CAPACITY

摘要

FIELD: floating lifting facilities used for hoisting, mounting and transfer jobs. ^ SUBSTANCE: lifting facility includes floating base (ship's hull) carrying several derricks mounted on swivel pillars balanced by means of externally-mounted varying counter-weights suspended from auxiliary derricks lifting the large-sized cargo during joint operation in synchronism; distance between points of suspension of cargo may be changed depending on length and distribution of mass of large-sized cargo being lifted; they move on carriages over rails mounted on keel piece along ship's hull; they may be stowed in transportation position. ^ EFFECT: extended technical capabilities. ^ 5 cl, 4 dwg