Abstract: An inking system for a rotary printing press is provided in which an ink application roller moves along in a frictionally engaged manner between an ink friction cylinder, which moves back and forth in the axial direction, and a plate cylinder to transfer ink to the plate cylinder for producing two quarter-cylinder-wide prints of maximum width and one half-cylinder-wide panoramic print of maximum width. Ink-free zones between the type matter on the plate cylinder are spaced from each other by less than distances between ink-free zones on an ink ductor. The ink application roller has annular grooves in its jacket surface and is disposed so that it moves back and forth at the same axial traversing frequency as the ink friction cylinder, but with a lesser traversing length.

Abstract: A cylinder spindle is usable in a device for tensioning bodies on a printing cylinder. The cylinder spindle is divided into a plurality of cooperating spindle segments. These segments are able to be easily removed from the tensioning device through a space between the end of the cylinder and its typically associated bearer ring.

Abstract: A method and apparatus for placement of a doctor blade bar against an ink dispensing roller utilizes doctor blade supporting base bodies which have resiliently supported doctor blades and which are shiftable between rest and work positions along doctor blade base support beams by blade base shifting devices. The doctor blades are moved into engagement with the screen roller along a curved path. The resilient support of the doctor blades eliminates blade warping and possible damage to the working edge of the blades.

Abstract: A doctor blade bar assembly supports spaced doctor blades which are resiliently carried by slidable base bodies that can be moved to throw-on or adjust the doctor blades with respect to a screened ink roller. A pair of blade base shifting devices are secured to doctor blade base support beams. The shifting devices utilize rotatable eccentric cams to move the base bodies along guide surfaces on the beams. The doctor blades are moved in a linear manner to resiliently engage the screened ink roller at a negative contact angle. End plates on the base bodies cooperate with the spaced, resiliently supported doctor blades to form an ink receiving chamber.

Abstract: A sector blade bar assembly supports spaced doctor blades on slidable base bodies which can be moved to throw-on or adjust the doctor blades with respect to a screened ink roller. A pair of blade base shifting devices are secured to doctor blade base support beams. The shifting devices utilize fluid actuated pistons to move the base bodies along guide surfaces on the beams. The doctor blades are moved in a linear manner to engage the screened ink roller at a negative contact angle. End plates on the base bodies are slidably supported and are spring biased into contact with the screened ink roller when the doctor blades are thrown onto the screened ink roller.

Abstract: A doctor blade bar for a short inking unit employs an eccentric disk to engage an abutment on a doctor blade holder to retract a doctor blade that is held by the holder and a cooperating doctor blade guide into a retracted position with respect to a screen roller, Disengagement of the eccentric disk from the abutment allows the doctor blade to be moved by a pressure spring into contact with the screen roller.

Abstract: A two chamber ink container for a short inking unit of an offset rotary printing unit is generally funnel shaped and has an ink reservoir chamber and a feedback chamber. A separating plate divides the ink container into its two chambers. A lower portion of the separating plate defines a flow passage for the ink and doctored-off ink and water back to an ink pump and thence to a chambered doctor blade.

Abstract: An apparatus for the clamping and placement of a doctor blade bar against an ink-dispensing roller utilizes spaced lifting or camming strips on doctor blade base support beams and cooperating counter strips or cam followers on doctor blade supporting base bodies to support the doctor blade bar as it is moved toward or away from the screen roller. Doctor blade base shifting devices use rotatable clamping bodies which can be turned to form extensions of the base support beams on which the doctor blade bar can rest when it is in a mounting position.

Abstract: An apparatus for placement of a doctor blade bar against an ink-dispensing roller utilizes spaced lifting or camming strips on doctor blade base support beams and cooperating counter strips or cam followers on doctor blade supporting base bodies to move the doctor blades toward or away from the screen roller. The slopes of the two inclined lifting strips on each support beam are preferably different from each other.

Abstract: A doctor blade for an inking unit of a rotary printing press utilizes one or more plates or elastic bars to limit whirl flow of the ink in the distribution chamber. The plate and/or elastic bar partially divides the ink chamber. As a result, the creation of whirls is controlled and limited.

Abstract: A printing ink feeding assembly for an anilox roller uses a plurality of individual anilox inking units. Each unit has its own individual chambered doctor blade, ink trough, ink pump and drive motor. The widths of the units and their positioning beneath the anilox roller are variable to provide flexibility of anilox roller inking.

Abstract: A chambered doctor blade utilizes parallel, axially extending spaced working and sealing doctor blades, together with spaced end plates to define an ink chamber. Free axial ends of the working doctor blade extend beyond the ends of the end plates and remove built-up ink beads. This removed ink flows down the surface of the inwardly inclined end plates.

Abstract: An inking unit uses circumferentially offset elongated flexible doctor blades to form an ink chamber into which the screened surface of an ink roller immerses itself. Free ends of the spaced flexible doctor blades can be forced into or out of contact with the screened roller surface in accordance with the pressure of the ink in the ink chamber.