Metal lattice

E - Fixed Constructions – 04 – C

Patent

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E04C 2/42 (2006.01) B21D 53/00 (2006.01)

Patent

CA 2169919

Metal lattice formed of overlying slats (11 and 12) of hollow tubular form. The slats (11) are provided with apertures (18 and 19) in opposite side faces and the slats (12) with apertures (20) in one side face only so that when fastened together by a rivet (21), the rivets are hidden from one side. In an alternative connection arrangement, the slats (11) may be provided with tongues for location in slots in the slats (12). A method and apparatus for manufacturing metal lattice is also disclosed.

Treillis métallique se composant de lames (11 et 12) superposées, de forme tubulaire creuse. Les lames (11) sont pourvues d'ouvertures (18 et 19) ménagées dans leurs faces latérales opposées, et les lames (12) sont pourvues d'ouvertures (20) dans une face latérale seulement, de telle sorte que, lorsque ces lames sont fixées ensemble à l'aide d'un rivet (21), ces derniers sont cachés d'un côté. Dans un autre mode de raccordement, les lames (11) peuvent être pourvues de languettes qui viennent se loger dans des encoches dans les lames (12). L'invention concerne également un procédé et un appareil permettant de fabriquer ce treillis métallique.

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