AERIAL HOISTING DEVICE Russian patent published in 2006 - IPC E21C41/26 B64B1/50 

FIELD: methods of surface mining, particularly to transport rock from open-cast mine.

SUBSTANCE: hoisting device comprises drive, haulage rope and load container with spherical balloon. The balloon is enclosed in teardrop-shaped shell. The head shell part is directed towards upper horizon, bottom part thereof is opened and provided with stiffening ring and stringers.

EFFECT: reduced power input and provision of favorable drive operation conditions, reduced haulage rope cross-section and, as a result, reduced hoisting device size as a whole.

2 dwg