Sash-bar.
（Carpentry.) The vertical and transverse pieces within a window-frame which hold the panes of glass in place. They are rabbeted or grooved on one side to receive the glass, and are mitered to each other and to the frame. See sash. Those for the Crystal Palace, in 1851, were made by a special machine devised by Paxton and Birch, in which a series of revolving cutters shaped a piece which was afterward divided by circular saws into four parts, each constituting a complete bar, other saws of less diameter at the same time making the grooves for the glass. They were painted by drawing them through a trough filled with color, and afterward passing them between a series of brushes set at right angles to each other, which removed the superfluous paint.
