1. Pulleys to lead a driving belt or rope in a new direction or to keep it from leaving its desired direction.

2. Tracks that support and determine the path of a skip bucket and skip bucket bail.

3. Tracks guiding the chain or buckets of a bucket elevator.

4. The runway paralleling the path of the conveyor which limits the conveyor or parts of a conveyor to movement in a defined path.

1. Steel, wood, or steel-wire rope conductors in a mine shaft to guide the movement of the cages.

2. Timber, rope, or metal tracks in a hoisting shaft, which are engaged by shoes on the cage or skip so as to steady it in transit.

3. The holes in a crossbeam through which the stems of the stamps in a stamp mill rise and fall.