Abstract: A window contains a decorative grille bar assembly which is mounted atop a single glazing panel to simulate the presence of separate window panes. The grille bar assembly comprises a plurality of hollow metal extrusions which are connected to one another, and to the window frame, by plastic inserts which are press-fit in hollow ends of the grille bars. The inserts are connected to the grille bars and to the window frame by tongue-and-recess connections.

Abstract: A window assembly includes a pair of horizontally slidable window units. The window units includes respective inner and outer frame sections which are superimposed when both window units are closed. A latching mechanism is mounted in the inner frame section and includes a rotatable latching arm capable of entering a recess in the outer frame section for latching the window units together in a manner drawing both window units against an intermediate divider wall. When the latching arm is in an unlatching condition, it is capable of being used as a handle to open the associated window units.