traveling gantry crane

traveling gantry crane

[′trav·əl·iŋ ′gan·trē ‚krān]
(engineering)
A type of hoisting machine with a bridgelike structure spanning the area over which it operates and running along tracks at ground level.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.