B - Operations – Transporting – 21 – D
Patent
B - Operations, Transporting
21
D
B21D 5/14 (2006.01) B21D 11/08 (2006.01) B21D 11/10 (2006.01)
Patent
CA 2461664
Roofing metal sheets of the kind having upstanding flat edges ending with beads are bent by having their flat edges rolled so that they will be gradually thinner towards the beads. The sheets will be bent also if the beads are not rolled.
La présente invention concerne des tôles de toit métallique du type présentant des bords plats verticaux se terminant par des moulures convexes. Lesdites tôles sont cintrées par laminage de leurs bords plats de sorte qu'ils deviennent progressivement plus fins vers les moulures convexes. Lesdites tôles peuvent être cintrées même si les moulures convexes ne sont pas laminées.
Ortic 3d Ab
Ortic Ab
Ridout & Maybee Llp
LandOfFree
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