Device for manufacturing conical poles

A device for manufacturing a conical pole member by roll-forming sheet metal, comprising:

• a conveyor path along which said sheet metal is transported;
• and
• a plurality of roll-forming groups provided on either side of a longitudinal center line defined by said conveyor path, each said roll-forming group one one side being displaceable towards and from each other roll-forming group during roll formation and including at least one forming roll pivotably mounted on a frame member, wherein at least first and second of said roll-forming groups on one said side are pivotably mounted about an axis substantially perpendicular to said longitudinal center line and at respective desired angular positions so that said first group roll-forms sheet metal conveyed thereto at the first angle relative to said center line, and said second group roll-forms sheet metal conveyed thereto at a second angle relative to said center line, said first angle being variable relative to said second angle.