FIELD: transport engineering. SUBSTANCE: device has drum 4 on which load cable 5 is wound and braking device. Cable is passed through guide sheaves 6 and is provided with trolley 17 with counterweight. Drum 10 has mechanical braking device. Guy rope from load gripping member 12 passes first through guide sheaves 14 on boom to drum and after winding of several turns on drum it passes to pulley block 18 placed between guide sheaves and trolley 17 with counterweights. EFFECT: enlarged operating capabilities. 4 dwg
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0 |
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Authors
Dates
1995-11-27—Published
1993-09-08—Filed