in which the direction of feed is controlled by a copying device, e.g. by a pattern (features of copying devices B23Q35/00)

Full Title

Planing or slotting machines cutting by relative movement of the tool and workpiece in a horizontal straight line only > with tool-supports or work-supports specially mounted or guided for working in different directions or at different angles; Special purpose machines > in which the tool or workpiece is fed otherwise than in a straight line, e.g. for planing profiled stock > in which the direction of feed is controlled by a copying device, e.g. by a pattern (features of copying devices B23Q35/00)