Cages in example sentence
The engine-man, standing at his post, listened to the ringing of the signals, and his eye never moved from the indicator where the shaft was figured, with its different levels, by a vertical groove traversed by shot hanging to strings, which represented the cages; and at each departure, when the machine was put in motion, the drums--two immense wheels, five metres in radius, by means of which the two steel cables were rolled and unrolled-- turned with such rapidity that they became like grey powder.