E - Fixed Constructions – 04 – D
Patent
E - Fixed Constructions
04
D
20/20.6
E04D 3/363 (2006.01) B21D 39/02 (2006.01) E04D 3/362 (2006.01) E04F 13/12 (2006.01)
Patent
CA 1317433
-11- A B S T R A C T METAL SHEETING A metal sheet (1) having a first upstanding hook formation (3) along one edge (2) and a second, upstanding hook receiving formation (6) and a valley (7) along an opposite edge (5) the arrangement being such that the sheet can be fastened directly to a support without the interposition of separate clips and so that the first formation of one sheet can hook over the second formation of an adjoining sheet and cover its valley characterised by latching means (11, 12, 13, 14, 15 and 16b, 17, 19, 21) acting between the formations so that after interlocking the sheets said one sheet can be rotated about the hook receiving formation of the other sheet through at least 25° before the formations can be disengaged.
599559
Baley Michael John
Buxton Peter Godfrey
Saini Tarlochan Singh
Sim & Mcburney
Talfab Holdings Limited
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