Apparatus for deflecting or inverting moving webs

A system for inverting a moving web of indefinite length material comprising:

• a first diverting roller and a second diverting roller each comprising a rotatable roller body having a longitudinal axis and at least two channels formed in the surface the roller body oriented axially and extending the length of the roller body, at least two pairs of pulleys located at the ends of such channels, and a belt mounted between each pair of pulleys and lying in the channel;
• one or more rollers for conveying the moving web between the first diverting roller and the second diverting roller, such that
• when the moving web, starting in a first orientation, is directed around the first diverting roller at a non-normal angle of incidence to the first diverting roller longitudinal axis, the one or more rollers and the second diverting roller, it emerges, at a non-normal angle of incidence to the second diverting roller longitudinal axis, in a second orientation which is inverted from the first orientation, the sides of the web facing directions opposite from those they faced upon entering the system.