In a friction winder, the skip accelerates to a steady speed over a time span of 15 s from the start. The torque vs. time diagram for the winding cycle is shown...

Ore is hoisted from 620 m depth using a single skip of 7 tonne pay load. The skip winding system has constant acceleration/deceleration of 1 m/s2 and a constant...

Match the following safety arrangements for a surface-to-underground shaft hoist with their corresponding safety functions.