FIELD: transport.
SUBSTANCE: invention relates to travelers with bearing beam displacing on rails and crane trolley with two winches moving on said beam across direction of beam displacement. Traveler with bearing beam displacing on rails and crane trolley with two winches moving on said beam across direction of beam displacement, every drum of said winches having an opposite-direction groove. Both drums can reel on/off the rope reeved in, at least, one lower pulley.
EFFECT: perfected design.
4 dwg
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| 0 |
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SU307671A1 |
