A device for the rotation of the web material in screws - or other suitable shape.

摘要

Apparatus for twisting a strip (10) of flat material into a helix or other suitable shape comprising one or more feed rollers (11-15) adapted to feed the strip in to means for guiding (18) and locating the strip in the plane of its longitudinal axis, and from whence the strip passes into twist rolls (28,29) which are angularly rotatable with respect to the guide means and which are provided with surfaces which grip the strip and when so angularly rotated twist the strip about its longitudinal axis.