Rotary web printing machine with photoelectric controlled feeding means

Claim 1

A TICKET OR LIKE PRINTING MACHINE FOR EFFECTING A PRINTING IMPRESSION ON EACH OF A SERIES OF DISCRETE PRINTING AREAS OF A STRIP-FORM ELEMENT WHICH IS PROVIDED WITH A SERIES OF SPACED MARKINGS THEREON, EACH MARKING DEFINING A DIFFERENT SUCCESSIVE ONE OF SAID PRINTING AREAS, WHICH MACHINE COMPRISES A ROTATABLE DRUM CARRYING A PROJECTING PRINTING IMAGE EXTENDING OVER A PART ONLY OF THE CIRCUMFERENCE OF SAID DRUM, A COUNTERPRESSURE MEMBER CO-OPATING WITH SAID ROTATABLE DRUM TO FORM A PRINTING ZONE TO IMPRESS SAID PRINTING IMAGE IN SAID STRIP-FORM ELEMENT, INTERMITTENTLY OPERABLE STRIP FEEDING MEANS FOR MOVING SAID STRIP-FORM ELEMENT FORWARDLY THROUGH SAID PRINTING ZONE AND CONTROL MEANS FOR CONTROLLING THE OPERATION OF SAID STRIP FEEDING MEANS TO START AND STOP THE STRIP FEEDING MOVEMENT IMPARTED THEREBY, SAID CONTROL MEANS INCLUDING PHOTO-ELECTRIC MEANS FOR SENSING ONE OF SAID MARKINGS IN SAID STRIP-FORM ELEMENT TO PROVIDE AN OUTPUT CONTROL SIGNAL, ELECTRICALLY OPERATED MEANS COUPLED TO SAID STRIP-FEEDING MEANS AND SUPPLIED WITH SAID CONTROL SIGNAL TO CAUSE CESSATION OF FEEDING MOVEMENT OF SAID STRIP-FORM ELEMENT BY SAID STRIP FEEDING MEANS AT A POSITION WHERE THE NEXT DISCRETE PRINTING AREAS IS IN CORRECT POSITIONAL RELATIONSHIP TO THE PRINTING IMAGE IN SAID DRUM, SAID CONTROL MEANS FURTHER INCLUDING CONTACT MEANS COUPLED TO AND OPERATED BY THE ROTATION OF SAID DRUM AND ALSO CONNECTED TO SAID ELECTRICALLY OPERATED MEANS TO CAUSE RE-COMMENCEMENT OF STRIP FEEDING MOVEMENT BY SAID STRIP FEEDING MEANS AT LEAST BY THE TIME WHEN THE LEADING EDGE OF SAID PRINTING IMAGE ARRIVES AT SAID PRINTING ZONE.