Hollow sections for door posts - have longitudinal grooves which facilitate fitting of hinges and lock

摘要

The door (13) is mounted in a fixed frame consisting of two uprights (20,21) and a lintel each of which is formed from two hollow sections (1,2). When fastened together by a screw (11) the hollow sections grip the opposite sides of the wall (10). The hollow section (1) has a recess formed by two surfaces at right angles to each other. One of these surfaces (15) forms a stop for the door. The other surface (17) has a longitudinal groove (18). This groove provides means of fitting the door hinge (16) to one door post and means of fitting the lock to the other door post. USE/ADVANTAGE - Hollow sections for door posts with contours which facilitate the fitting of the hinges and the lock.