Chase

A rectangular iron frame in which pages are securely fastened, so as to convey the whole safely to and from the press or machine, and to keep the type fixed during the process of printing. A chase should bear equally on the imposing surface or stone and the press-table; the cross-bars should be perfectly true, so as to give good register; and the inside in all its parts must be quite straight and square. The cross-bars ought never to be used for any other purpose than that for which they were originally inteneded.