Lining machine for copper plate engraving

This is a small lining machine designed by H. T. Ryall, the engraver, for filling in skies on steel or copper plates. It consists of a wooden frame, supported at the four corners so that long plates can be worked; upon the frame as a guide slides a saddle, and along the saddle slides a small carriage that carries the graver. The carriage is moved to and fro by the pull of a band moved by a pulley and winch handle at the right hand side, the carriage being kept down on its guides by the finger of the left hand. A cross-bar working in inclined slides supports the graver clear of the plate when desired. The motion of the saddle is controlled by a lever on it, which is connected to a steel strip, which works in a clamp on the frame. The clamp is tightened and the lever moved, so moving the saddle through a small distance ; the clamp is then released and the lever moved back, and so on, a very fine feed being thus obtainable, and one of varying amount, as the motion of the lever is controlled by an adjustable screw.