GOSS GRAPHIC SYSTEMS LIMITED Patent applications |
Patent application number | Title | Published |
20120132136 | Roller for an Inking System of a Printing Machine - A roller to contact an oscillating ink transfer drum in an inking system for a printing machine is disclosed. It comprises a cylindrical body having a longitudinal axis and a curved outer surface. A recess is formed in the curved outer surface at an end of the cylindrical body that extends axially inward from said end of the cylindrical body by a depth that gradually reduces in a circumferential direction extending around said axis. | 05-31-2012 |
20120118187 | Method of Removing a Printing Plate from a Plate Cylinder of a Printing Press - A method of removing a printing plate, each having leading and trailing edges located in respective lock-up slots in a plate cylinder of a printing press, from said plate cylinder, is disclosed. The method comprises the steps of extracting a first of said leading and trailing edges, rotating the plate cylinder in a first direction such that an extraction element located proximal to the surface of the plate cylinder passes beneath the extracted first edge until the printing plate is lifted off the surface of the plate cylinder by the extraction element, with the second edge still in its lock-up slot, to cause the second edge to move within its lock-up slot as the plate is lifted to loosen said second edge within its lock-up slot, rotating the plate cylinder in a second direction so that said plate drops back and, rotating the plate cylinder in the first direction again so that the extraction element pulls said loosened second edge out of said lock-up slot. | 05-17-2012 |
20120090487 | PRINTING PLATE MODULE, PRINTING PRESS, AND METHOD OF MOUNTING PLATES - A printing plate module is disclosed. The module comprises a printing plate support member ( | 04-19-2012 |
20110290135 | METHOD OF FURTHER INSERTING A PARTIALLY INSERTED LEADING AND/OR TRAILING EDGE OF A PRINTING PLATE INTO RESPECTIVE LOCK-UP SLOTS IN A PLATE CYLINDER OF A PRINTING PRESS - A method of further inserting a partially inserted leading and/or trailing edge of a printing plate into respective lock-up slots in a plate cylinder of a printing press to allow register slots in said edges to engage with lateral pins or a register mechanism in said lock-up slots is disclosed. The method comprises the step of positioning a pushing element relative to the curved surface of the plate cylinder, on which a printing plate is disposed with its leading and/or trailing edges partially inserted into their respective lock-up slots, such that said pushing element will engage and push a raised portion of said printing plate, adjacent to said partially inserted leading and/or trailing edge, down onto the surface of the plate cylinder and the leading and/or trailing edge further into their respective lock-up slots, as said plate cylinder rotates. | 12-01-2011 |
20100313779 | APPARATUS FOR DETECTING PRINTING PLATES AND A PRINTING PLATE MONITORING SYSTEM FOR A PRINTING PRESS - Apparatus for detecting the presence of a partially loaded printing plate in individual printing plate mounting positions on a plate cylinder of a printing press is disclosed. The system includes a discrete vacuum circuit associated with each individual printing plate mounting position. Each vacuum circuit includes suction elements that are positionable spaced from the surface of a plate cylinder so that, when a leading edge of a printing plate has been received in a lock-up slot in a plate cylinder and the plate cylinder is rotated to partially wrap said printing plate around said plate cylinder, a trailing edge portion of a printing plate is deflected away from the surface of the plate cylinder, due to its resilience, against the suction elements. It is thereby possible to generate a negative pressure in the vacuum circuit closed by said trailing edge portion of the printing plate against the suction elements. The existence of a negative pressure can be used to indicate the presence or absence of a partially loaded printing plate in each of the printing plate mounting positions. | 12-16-2010 |
20090071359 | PRINTING PLATE UNLOADING APPARATUS AND METHOD - Apparatus for removing printing plates ( | 03-19-2009 |
20090025593 | PRINTING PRESS - A method of controlling a printing unit is disclosed. The printing unit comprising a plurality of printing couple pairs, each printing couple pair comprising a plate cylinder and a blanket cylinder and an inking system associated with each printing couple pair operable to supply ink to printing plates mounted on the plate cylinders of said printing couple pairs. The printing unit also comprises a primary module carrying the printing couple pairs and, a pair of secondary modules carrying the inking systems, the secondary modules being movable relative to the primary module from an operative into a non-operative position in which each secondary module is separated from the primary module. The printing unit further comprises apparatus for loading/unloading printing plates from the plate cylinders of the printing unit and the method includes the step of unloading printing plates from the plate cylinders of the printing unit using said apparatus whilst the secondary modules are moving relative to the primary modules into their non-operative positions. | 01-29-2009 |
20080257180 | Dampening Control for a Printing Press - Apparatus for dampening a printing press comprises a spray bar ( | 10-23-2008 |