Bar to UNDERSTOETNING THE FIRST CHANGE OF STONE BY bricklaying OF openings

摘要

A lintel is provided for supporting arches over doors, windows and other openings in the wall. The lintel has a substantially L-shaped cross-section and is made of relatively thin plate. Tension bands are at one of their ends attached to the end of the horizontal leg of the lintel and at their other end connected to the end of the vertical leg of the lintel.