Fittings To Windows. The sash bars which carry the glass are more or less numerous, according to the number of panes of glass in each sheet. Since the introduction of plate glass at a comparatively cheap rate, many windows have each sheet formed of one pane only, dispensing altogether with crossed sash bars, filling up the frame as in fig. 1, Plate XLVII. In fig. 1, Plate XLIX., we give a section of the "sash bar" of the window in fig. 1, Plate XLVII.

The glass pane, c, rests in the re-batted part at b, and is secured in its place by the putty, d; e e is elevation of the bar. The intersection or meeting of horizontal bars, g g, and vertical, h h, is shown at f. The window (lower sheet) is lifted by means of "finger rings," as shown in fig. 2, Plate XLIX., in which a is the lower bar of sash frame, b the plate of the ring c, secured by screw nails to a a. The section or side view is shown at a, b', c. In fig. 367 we illustrate the pulley frame a a, which carries the pulley h over which the rope or chain / sustaining the sash frame is passed; b b, the "pulley piece;" c c, the outside bead; d d, the "inside bead;" e, the brass bearing for the axis of the roller for window blind to revolve in. Fig. 367a illustrates the "catch" by which windows are secured, by preventing the upper and lower "sheets" from being separated; e e, the top of upper bar of lower " sheet;" g g, the top of the lower bar of upper sheet; to e e a plate a is screwed, to which is cast a horn 6, projecting a little above the plate a a, leaving a space into which the part d of the catch can slip, this being moved by the handle c; f^ a small spring to bring back the catch d when released from the horn b.

38 Fittings To Windows 192

Fig. 367.

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Fig. 367a.