CRANE SYSTEM Russian patent published in 1999 - IPC

FIELD: aerostats; gas balloon assembling system. SUBSTANCE: room 20 has floor 22 and roof 24 with longitudinal, vertical and cross axes 26 (A, B, C). Groups of rails 30-38 for crane trolleys in form arcs are provided. Rail arcs are centered with cross axis 26 C and are installed inside room 20. Groups of rails 30-38 for trolleys are located along longitudinal axis 26 A. Crane trolleys 40A - 1 - 48A - 1 are installed for travelling along rails 30-38 of each group. Each trolley has winch installed on trolley and provided with pulled forward and backward wire rope. Control system is provided to displace crane trolleys in rows centered with longitudinal axis 26 A of room along groups of rails 30-38 to designed places along cross axis 26 C and to adjust length of winch wire ropes in each row as a function of distance of each row along cross axis 26 C of room 20. EFFECT: increased capacity at assembling aerostat balloons. 5 cl, 11 dwg