Rotary letterpress having a mirror image cylinder arrangement

Claim 1

A ROTARY LETTERPRESS PRINTING PRESS FOR COLOR-RELIEF OR OFFSET PRINTING COMPRISING, IN COMBINATION, AT LEAST ONE PAIR OF SERIES PRINTING UNITS, EACH PAIR OF PRINTING UNITS COMPRISING A FIRST PRINTING UNIT AND A SECOND PRINTING UNIT SPACED FROM THE FIRST UNIT AND DISPOSED IN SERIES THEREWITH, MEANS TO DELIVER SHEET STOCK INDIVIDUALLY TO SAID FIRST UNIT FOR PRINTING AN IMPRESSION THEREON, MEANS TO AUTOMATICALLY TRANSFER AND DELIVER SAID SHEETS INDIVIDUALLY FROM SAID FIRST PRINTING UNIT TO SAID SECOND UNIT FOR PRINTING ON A SAME SIDE ON WHICH THE FIRST-MENTIONED IMPRESSION IS PRINTED THEREON, EACH PRINTING UNIT COMPRISING PRINTING ELEMENTS INCLUDING A PLURALITY OF CYLINDERS COMPRISING AT LEAST THREE CYLINDERS COMPRISING A CENTRAL CYLINDER, AN UPPERMOST CYLINDER COMPRISING A FORM CYLINDER COOPERATIVE WITH SAID CENTRAL CYLINDER, A LOWER CYLINDER COOPERATIVE WITH SAID CENTRAL CYLINDER AND INKING MECHANISM COMPRISING INKING ROLLERS UPWARDLY OF SAID UPPERMOST FORM CYLINDER, SAID SECOND UNIT HAVING ALL OF ITS CYLINDERS INCLUDING ITS CENTRAL CYLINDER, FORM CYLINDER, LOWER CYLINDER, AND INKING MECHANISM INCLUDING INKING ROLLERS DISPOSED VERTICALLY SYMMETRICALLY WITH SAID FIRST UNIT IN A MIRROR ARRANGEMENT OF SAID FIRST PRINTING UNIT, A SINGLE OPERATORS STAND HAVING A SINGLE PRINCIPAL LEVEL INTERMEDIATE OF SAID TWO UNITS FROM WHICH ALL OF SAID CYLINDERS AND SAID INKING MECHANISM ARE ACCESSIBLE, SAID PRINCIPAL LEVEL OF SAID OPERATORS STAND BEING DISPOSED AT A LEVEL LOWER THAN ANY OF ALL OF SAID CYLINDERS, AND SAID MEANS TO AUTOMATICALLY TRANSFER SAID SHEETS INDIVIDUALLY FROM SAID FIRST PRINTING UNIT TO SAID SECOND PRINTING UNIT COMPRISING DRIVEN MEANS DISPOSED IN EACH OF SAID PRINTING UNITS AT LEAST PARTIALLY ABOVE SAID PRINCIPAL LEVEL OPERATORS STAND IN A MIRROR IMAGE ARRANGEMENT FOR EFFECTING TRANSFER OF SHEETS BETWEEN SAID LOWER CYLINDER OF EACH UNIT AND SAID MEANS TO AUTOMATICALLY TRANSFER SAID SHEETS INDIVIDUALLY FROM SAID FIRST PRINTING UNIT TO SAID SECOND PRINTING UNIT AND COMPRISING DELIVERY MEANS DISPOSED BELOW SAID OPERATORS STAND.