Internal roller tool for bending a strip into a tube

摘要

An internal tool for bending a strip passing in a strip-travel direction into a tube has a support juxtaposable with a face of the passing strip, at least two roller holders pivotal on the support about respective offset holder pivot axes generally parallel to the strip-travel direction, and respective rollers carried in the holders and rotatable about respective roller axes generally perpendicular to the respective holder axes.