millboard

A stout pasteboard made of strong materials, such as refuse flax, cotton, and hemp, rope, or bagging; and used for the stiff por tion of book-covers, and for other purposes. It is also used for packing between the flanges of pipes, being previously soaked in oil. Mill -board cutter : A machine for cutting heavy board, for book-covers and pasteboard boxes. mill-cake, s . 1. The incorporated materials for gunpowder, in the cake form, previous to granulating. 2. The ma of hulls and parenchyma remaining after the expre ion of linseed-oil. *mill-doll, v . i. To do work on the tread-mill. "I am sent hither to mill-doll." - Fielding : Amelia, bk. i., ch. x. *mill-dolly, s. Work on the treadmill.