Grill protecting window from break-in - is constructed from metal bars and tubes which fit one in another

摘要

The metal grill for protecting a window against a break-in is so designed that it can be fitted in the opening of an existing window. The grill is constructed from solid bars (1) with a piece of tube (2) welded to one end with the tube lying along the side of the bar. Two such elements can be joined together by placing the free end of the solid bar of one element inside the tube of the other element. A second bar can be fitted with one end in the tube and the other end in a hole in the masonry surrounding the window. USE - House security.