SETT ATT VID EN FORPACKNINGSMASKIN AVLESA FOTOCELLMARKERINGAR PA EN MATERIALBANAS DEKORSIDA JEMTE ANORDNING FOR GENOMFORANDE AV SETTET

摘要

An apparatus for reading photocell markings applied at equal intervals on the decorated side of a material web run through a packing machine for the continuous manufacture of separatable packages provided with transverse crease lines in which a cylindrical monitoring element which contacts and is rotated by the crease lines functions to periodically actuate an electrical switch which in turn activates a photocell located close to the web when a photocell marking is calculated to pass.