Perfected provision in the unión of elements members of marcos. (Machine-translation by Google Translate, not legally binding)

摘要

Improved arrangement in the unión of integral elements of frames, essentially characterized in that between each two elements or stringers constituting the frame assembled to miter is inserted tightly a piece or integral block of plastic configured at right angles and equipped with a notch or slot for fit in it the corresponding internal prominence provided in each of the said stringers or constituent elements of the frame in which a threaded hole is provided for the passage of an over-fixing screw of the piece or block to each element or stringer, establishing itself in this way a firm and stable bond between the component elements of the frame. (Machine-translation by Google Translate, not legally binding)