Abstract: A pneumatic axially oscillated, frictionally rotated roller is disclosed and may be used in the ink or damping systems of a printing press. The roller features an internal air piston-cylinder construction that causes the axial motion but permits the roller to freely rotate. Further, several air cylinders can be stacked on each side of the roller to permit even a small diameter roller to be pneumatically oscillated. The roller, when used as an ink form roller, may be operated to oscillate in synchronization with an adjacent oscillating, vibrating roller to continually diagonally redistribute the ink so as to eliminate or minimize "ghosting". The foregoing is accomplished by controlling the oscillation of the form roller to move axially in a direction opposite of that of the vibrating roller. The lengths of the strokes of the two rollers may differ or be the same.

Abstract: Disclosed are methods and apparatus for controllably locking a shaft to a bearing surface moveable thereupon to permit or prevent axial movement of the bearing with respect to the shaft. In one embodiment an axially extending flap is formed in the shaft which is activated by a wedge to expand the diameter of the shaft and thereby lock the shaft to the surrounding bearing surface. In another embodiment a slot is formed in the bushing surrounding the shaft and the internal diameter of the bushing decreased with a wedge screw to lock the bushing to the shaft.

Abstract: A method and apparatus is disclosed for flattening perforated web fed materials so that when cut into sheets they stack easily without a tendency to fall to one side. The method and apparatus is particularly adapted to be installed on a web fed printing press equipped for forming perforations in the printed web, the apparatus being located between the perforating and sheeting and stacking stations of the press.

Abstract: An improved decal and method of decal manufacture includes a base sheet of polyethylene (polymeric) type material with a urethane (polymeric) high solids content carrier layer in the shape of the decal printed thereon. The graphics for the decal are printed on the carrier layer and a high tack adhesive is then overprinted on the ink layers forming the completed decal. The decal is applied to a surface and the base sheet is separated from the applied decal.

Abstract: An improved decal and method of decal manufacture includes a base sheet of polyethylene (polymeric) type material with a urethane (polymeric) high solids content carrier layer in the shape of the decal printed thereon. The graphics for the decal are printed on the carrier layer and a high tack adhesive is then overprinted on the ink layers forming the completed decal. The decal is applied to a surface and the base sheet is separated from the applied decal.

Abstract: A dry transfer decal includes a flexible carrier layer as a substrate with a high adhesion characteristic urethane layer on the substrate. Ink layers are printed on the urethane layer and a high tack adhesive is screened over the printed ink layers. The decal may be transferred from the substrate to a surface by applying a local pressure through the substrate on the decal thereby impinging the decal onto the surface. Specific formulations for the urethane layer and the various ink layers are disclosed.

Abstract: A method for producing a multicolor heat transfer decal comprises printing specially formulated thermoplastic inks successively onto a pre-release coated carrier sheet. The inks give optimum print quality using plastic printing plates and a rotary letterpress or flexographic printing process.