System for adjusting orientation of continuous webs in printing machines comprises support bars with triangular cross-section and convex upper surface made from microporous material, compressed air being blown through it from below

摘要

The system for adjusting the width and orientation of continuous webs in printing machines comprises support bars (09) with a triangular cross-section and a convex upper surface (06). This is made from microporous material and compressed air is blown through it from below. The micropores have a diameter below 500 microns.