FIELD: shipbuilding. SUBSTANCE: shipboard hoist-lower unit has telescopic cargo derrick secured on bearing upright of support turnable platform by means of drive lever. Derrick is connected with swivel lever forming two arms; cargo suspension is mounted on one arm; second arm is linked with hydraulic cylinder of drive used for turning it relative to drive lever consisting of two parallel telescopic sections. EFFECT: enhanced reliability. 4 cl, 11 dwg
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