Patent ID: 7210406

Claim:
A cylinder pair of a printing group of a rotary offset printing press comprising: a forme cylinder having a forme cylinder axial length in an axial direction of said forme cylinder and a forme cylinder circumferential shell having a forme cylinder circumferential length, said forme cylinder being divided along said forme cylinder axial length into a plurality of forme cylinder sections; a transfer cylinder having a transfer cylinder axial length in an axial direction of said transfer cylinder and a transfer cylinder circumferential shell having a transfer cylinder circumferential length, said transfer cylinder being divided along said transfer cylinder axial length into a plurality of transfer cylinder sections; at least one printing forme on each of said forme cylinder sections; at least one printing blanket on each of said transfer cylinder sections; a plurality of axially extending grooves beneath said shell surfaces of said forme cylinder and said transfer cylinder; at least one printing forme end receiving opening for each said printing forme on said forme cylinder shell and terminating in one of said forme cylinder grooves; at least one printing blanket end receiving opening for each said printing blanket on said transfer cylinder shell and terminating in one of said transfer cylinder grooves, at least one of said forme end receiving openings rolling off on one of said blanket end receiving openings, all of said forme end receiving openings following each other in said axial direction of said forme cylinder being aligned; at least three said printing blankets aligned side by side axially on said transfer cylinder in said transfer cylinder axial direction, each said printing blanket having a circumferential length of said transfer cylinder circumferential shell; an axial length of each said printing blanket end receiving opening being equal to said axial length of each said printing blanket, said printing blanket end receiving openings of adjacent ones of said transfer cylinder sections being offset from each other by 180° in said circumferential shell, ones of said blanket end receiving openings spaced apart by alternating ones of said transfer cylinder sections being aligned in said axial direction of said transfer cylinder; and a number of said printing formes aligned axially on said forme cylinder is at least equal to said number of printing blankets aligned axially on said blanket cylinder, each said printing forme having a circumferential length of half said forme cylinder circumferential length, an axial length of each said printing blanket being a whole number multiple of an axial length of each said printing forme.