Automatic selective duplicator

Claim 1

A ROTARY DUPLICATOR COMPRISING, IN COMBINATION, A ROTARY PRINTING ROLLER INCLUDING A SET OF CIRCUMFERENTIALLY DISPOSED PRESSURE MEMBERS, EACH PRESSURE MEMBER BEING MOVABLE BETWEEN A RETRACTED POSITION AND A RADIALLY PROJECTING PRINTING POSITION; HOLDING MEANS ON SAID PRINTING ROLLER FOR HOLDING A FLEXIBLE MASTER SHEET ON THE PERIPHERY OF SAID PRINTING ROLLER WITH PRINTING SECTIONS OF SAID MASTER SHEET LOCATED ON CORRELATED PRESSURE MEMBERS; A ROTARY COUNTER-PRESSURE ROLLER COOPERATING WITH PRESSURE MEMBERS IN SAID ADVANCED PRINTING POSITION TO FORM A PRINTING LINE; FEEDING MEANS FOR FEEDING COPY SHEETS TO THE PRINTING LINE; OPERATING MEANS INCLUDING ELECTRO-MAGNETIC MEANS FOR MOVING SELECTED PRINTING MEMBERS TO SAID PRINTING POSITION WHEREBY PRINTING SECTIONS OF THE MASTER SHEET ARE PRESSED AGAINST THE COPY SHEET AT SAID PRINTING LINE; A CONTACT DEVICE INCLUDING STATIONARY CONTACT MEANS, AND ROTARY CONTACT MEANS CONNECTED TO SAID PRINTING ROLLER AND ROTATING IN SYNCHRONISM WITH THE SAME, AT LEAST ONE OF SAID CONTACT MEANS INCLUDING A SET OF CONTACTS RESPECTIVELY CORRELATED WITH SAID PRESSURE MEMBERS AND PRINTING SECTIONS; AND SELECTOR MEANS INCLUDING SENSING MEANS FOR SENSING MARKINGS CORRELATED WITH SELECTED PRINTING SECTIONS OF SAID MASTER SHEET AND ELECTRICALLY CONNECTED WITH SAID CONTACTS OF SAID CONTACT DEVICE AND TO SAID ELECTROMAGNETIC MEANS FOR EFFECTING ENERGIZING OF SAID ELECTROMAGNETIC MEANS SO THAT SELECTED PRINTING SECTIONS ARE PRINTED IN THE PRINTING LINE.