| 摘要 |
An offset press unit which has a main frame defining a pair of spaced apart walls having bores therein, a pair of plate cylinders are disposed within the frame and are rotatably supported in spaced apart relation, and a pair of blanket cylinders are disposed within the frame each is rotatably supported for rolling contact with the other and with one of said plate cylinders, internal support means are secured to one of the walls and include at least one cylinder supporting bearing, external support means are secured to the other of said walls including at least one cylinder supporting bearing and one of the printing cylinders is rotatably supported by the cylinder supporting bearings. A method of constructing the offset press unit includes providing rotatable support for at least one printing cylinder by providing an internal support means having at least one cylinder supporting bearing and securing said internal support means to one of said walls of said main frame, providing an external support means having at least one cylinder supporting bearing and securing said external support means to the other of the walls with at least one of the cylinders supported upon the cylinder supporting bearings of the internal and external support means.
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