arcwall coal cutter

arcwall coal cutter

[′ärk‚wȯl ′kōl ‚kəd·ər]

(mining engineering)

A type of electric or compressed-air cutter for under- or overcutting a coal seam in narrow work.

McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.