Abstract: A window including a movable monolithic or laminated window, equipped along at least one part of its periphery with a molded profile obtained by encapsulating the window, presenting a structure which allows easy and permanent assembly by fitting and/or gripping it with a connecting piece which is part of the mechanism which provides the mobility of the window.

Abstract: A unitary pivot corner member having a separate pivot pin for engaging the sash balance of a double-hung sash window assembly and a slide guide integral with the member for riding in a guide rail of the master frame jamb of the window assembly. A pair of the same members are installed at opposing bottom corners of a sash window. Each of the slide guides rides in a guide rail and functions to retain the engaged guide rail in square alignment relative to the sash window whereby to eliminate gapping between the sash window and master frame jamb as the sash window is slided.