Up and over glazed door - comprises blind frame of screwed shaped units and mitred welded wing units

摘要

The door is of the raising and sliding, or up-and-over type, with a blind frame fixed to the masonry, and wing frames, which may be fixed and/or displaceable, with the glazing set int othem. The set of components is designed so that any suitable ironmongery and fittings, and simple standard blind frame units, can be used. The blind frame is made up from top and bottom shaped section units, and two identical side units. These are interconnected by screws engaging in screw channels. The wing, or sliding, frames are made up from homogenous shaped-section units mitre-cut at the corners, where they are welded together.