facing-point lock

facing-point lock

[′fās·iŋ ‚pȯint ‚läk]
(civil engineering)
A lock used on a railroad track, such as a switch track, which contains a plunger that engages a rod on the switch point to lock the device.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.