| 摘要 |
FIELD: transport. ^ SUBSTANCE: proposed installation 1 comprises shaft 10, counterweight 12 and cabin 11 connected by draw cables with counterweight 12 so that, with moving cabin, counterweight 12 moves in opposition while cabin 12 in approach zone A moves in shaft past counterweight 12. Sais approach zone A has enlargement E of shaft cross section Q to reduce shock of air pressure originating in approach zone A when cabin 11 moves past counterweight 12. ^ EFFECT: decreased noise and vibrations. ^ 19 cl, 6 dwg |
