Abstract: A security and escape apparatus for use with a window mounted in a wall at a position spaced above a support surface is disclosed. According to one aspect of the invention track members of a first bar section are S-shaped in cross-section so as to carry a second bar section thereon and thereby allowing the bar members of the bar sections to be uniform in length. According to another aspect a release mechanism comprises an abutting portion which is positioned beneath the bar sections to retain the sections across a window opening. The abutting portion is positioned horizontally outwardly of the bar sections such that the bar sections can extend to form a ladder beneath the window opening. According to another aspect the apparatus includes a window frame mounting arrangement cooperative with the obstructing position for resisting dismantling of the apparatus.

Abstract: A security and escape apparatus for use with a window mounted in a wall at a position spaced above a support surface is disclosed. According to one aspect of the invention track members of a first bar section are S-shaped in cross-section so as to carry a second bar section thereon and thereby allowing the bar members of the bar sections to be uniform in length. According to another aspect a release mechanism comprises an abutting portion which is positioned beneath the bar sections to retain the sections across a window opening. The abutting portion is positioned horizontally outwardly of the bar sections such that the bar sections can extend to form a ladder beneath the window opening. According to another aspect the apparatus includes a window frame mounting arrangement cooperative with the obstructing position for resisting dismantling of the apparatus.