Momertz-Lentz system

Momertz-Lentz system

[′mō‚merts ′lents ‚sis·təm]
(mining engineering)
Placement of two winding engines alongside the top of the mine shaft using the shaft collar as a common foundation; results in practically vertical ropes and less rope oscillation.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.