mortising machine (mortising mas hen")

A machine for cutting or boring mortises in wood. Such machines range from a pivoted lever, worked by the hand or foot and operating a chisel moving in upright guides, to power gang-boring machines for making a number of mortises at once in heavy timber. These larger machines employ either chisels, that cut out the mortises by repeated thrusts, or routers and boring-tools. Mortise-wheel.