Joy extensible conveyor

Joy extensible conveyor

[′jȯi ik¦sten·sə·bəl kən′vā·ər]
(mining engineering)
A type of belt conveyor consisting of a head section and a tail section, each mounted on crawler tracks and independently driven; used between a loader or continuous miner and the main transport.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.