Patent ID: 6810800
Filing Date: 2004-11-02
Classification: B41F

Abstract:
A cylinder of a rotary printing press comprising:a cylinder base body having a cylinder base body outer circumference; a plurality of spiral shaped strips on said cylinder base body outer circumference; a cylinder outer body supported by said plurality of spiral shaped strips, and spaced from said cylinder base body by said plurality of spiral shaped strips, said cylinder outer body being non self-supporting and having a small wall thickness defined by an inner surface and an outer shell surface and an axial length, a ratio of said wall thickness to said axial length being in a range of 1:200 to 1:1200; a multiplex-threaded spiral shaped conduit on said cylinder base body outer circumference and defined by said plurality of spiral shaped strips; a plurality of separate spiral-shaped flow paths, through which tempering medium can flow, said plurality of separate spiral-shaped flow paths being defined by said multiplex-threaded spiral shaped conduit on said cylinder base body circumference and said inner surface of said cylinder outer body, said outer shell surface of said cylinder outer body being adapted for conducting printing ink; and means for separately supplying a tempering medium to, and for removing a tempering medium from each of said plurality of separate spiral shaped flow paths.