The endless-rope system generally used on moderate and constant gradients where
the floor is good. In this system, the rope runs underneath the tubs or cars in
the center of the rails. Curves are negotiated by a series of small vertical
pulleys between the rails and are best of large radius. Clips are generally
preferred to lashing chains, and the system suits automatic clipping and
unclipping. CF: overtub system Sinclair, 5
Source:
Dictionary of Mining, Mineral, and Related Terms