Abstract: An apparatus and method is shown to retrofit a printing press to provide for perforations in a paper at the time of printing, which perforations aid the end user in tearing out coupons or redeemable items from the paper. An existing pipe roller is removed and replaced with a perforator assembly and a perforator roller. The assembly has perforator wheels that are adjustable left and right between limits, and can be lowered when perforations are desired. A threaded drive shaft moves the perforator wheels left or right. Cylinders lower the perforator wheels during perforating. Adjustments may be made electronically, as where to set the perforator wheels.

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.