Metal profile for reinforcing and anchoring plastics window frame may be used in fixed and movable frames and has unequal U-section with tongues bent inward and upward in shorter side wall

摘要

The metal profile (1) is of U-shaped cross-section, with sharp right-angle bends joining the flat floor (5) to the straight sides (2,4). The first side is shorter than the second side. There are equally- spaced U-shaped cuts in the first side wall, defining tongues (3) which are bent inward and upward, with their ends level with the top of the second side wall.