Abstract: A composite ink fountain blade for a printing press wherein the blade has a multiplicity of blade segments fixed between an upper cleaning plate and a lower support bar. Each of the segments is provided with smooth, ground or polished, machine finished, straight and parallel sides for sliding abutment against each other during the adjustment of an extending portion of the blade segments. Adjustment of the blade segments controls the flow of ink from the ink reservoir through the ink fountain blade first pickup roller nip.

Abstract: There is disclosed, printing apparatus including a drum having oppositely facing semicylindrical saddles mounted thereon with elongated spaces between the edges of the saddles. The longitudinal edges of the saddles are beveled radially inwardly on themselves and an elongated laminated alternate pole magnet array is mounted in the space between the saddles. A flexible printing plate is provided along one edge thereof with an inwardly bent angle for engaging the beveled edge of the saddle and the opposite edge of the plate is provided with a lockup pad for magnetically engaging the elongated magnet in the space.

Abstract: This invention is directed to a method for developing printing plates by stripping away uncured material using a carefully controlled gas stream. An optional supplemental blotting system is provided.

Abstract: Apparatus for developing a relief letterpress plate carrying a liquid polymer, comprising an air knife positioned to move over a stationary platen carrying the plate and blowing the polymer from the plate into a sink. Alternately the air knife is stationary and the platen is positioned to move under it.

Abstract: This invention is directed to an apparatus for developing printing plates by stripping away uncured material using a carefully controlled gas stream. An optional supplemental blotting system is provided.