Abstract: A rotary printing press with two or more printing units arranged concentrically, in parallel planes, to two or more impression cylinders which are mounted at one end on a shaft, and with one or more web-shifting devices, the impression cylinders being provided with sleeves of different outer surfaces which can be placed thereover for the use of different printing processes.

Abstract: A device for treating material by UV radiation has a UV radiating lamp with a reflector formed by a polished metal reflector having an outer surface of dull black chromium covered by layers of hafnium dioxide and silicon dioxide of which one is bonded to the black chromium surface.

Abstract: An apparatus for inserting stencil ferrules into the ends of a screen printing cylinder comprising chamber means, having a floor and a ceiling; base means secured within the chamber means and adaptable to releasably support a first stencil ferrule which engages one end of the screen printing cylinder; pivoting guide means positioned concentrically above the base means by a longitudinally adjustable support means, the guide means being adaptable to releasably support a second stencil ferrule which engages the other end of the screen printing cylinder, the support means being secured within the chamber means; means for supplying a heated fluid to the chamber means; and means for evacuating the heated fluid from the chamber means.

Abstract: Composite strips are spliced end-to-end each composite strip being formed by a first strip having a pressure-sensitive adhesive inner side and a second strip having an adhesive-repellent inner side on which the first strip's inner side is stuck for easy subsequent removal. To form the splice, a length of the first strip having the pressure-sensitive adhesive inner side is removed from one of the composite strip ends so as to leave a length of the second strip extending therefrom with its adhesive-repellent inner side exposed, this length of the second strip being lapped on the adjacent outside of the other of the composite strip ends while positioning the composite strip ends to form the joint and with this length spanning the joint. Thereafter, flexible splicing pieces are applied spanning the joint on both sides with the one on the side of the lapped length of the second strip extending therebeyond so it is stuck on the outside of the lapped composite strip's outside.