SETT FOR MONTERING AV FORANKRINGSPLATTOR FOR ISYNNERHET SEKERHETSDETALJER PA KORRUGERADE YTTERTAK

摘要

Plates are used which are shaped to match the corrugation so that they either locate against the top of a corrugation and a part of the flanks on either side of it, or extend across a depression between two corrugation peaks to locate against the corrugation tops on either side and a part of the flanks on either side of the tops. The plates have pre-drilled holes which after positioning are used as a guide for holes to be drilled in the corrugation tops. U-shaped retainers are used with threaded upwardly projecting arm ends. These arm ends are passed through the holes in the corrugation top and the plate above it, to be tightened by nuts.