Method and apparatus for diverting and separating sheets of a printable medium
AssigneeHeidelberger Druckmaschinen AG
InventorsDavid Clarke Pollock, Kevin Lauren Cote, Richard Daniel Curley
Life of this patent
Estimating the term…
Abstract
The present invention is directed to providing a method and apparatus for diverting and separating sheets of printable material, such as signatures severed from a web, in a cost effective, efficient manner which does not create the potential for damage to the signatures or jamming of the press. Exemplary embodiments can implement a signature diversion and separating in a single step, without reorienting the signatures. Thus, for example, where the signatures include a folded edge, the orientation of that folded edge can be maintained throughout the diverting and separating process.
Claims17
Apparatus for diverting sheets of printable material comprising
- at least one stage for feeding a first set of plural sheets and a second set of plural sheets of printable material with a first velocity vector;
- and
- at least one additional stage for actively imparting a second velocity vector to said first set of plural sheets and a third velocity vector, different from said second velocity vector, to said second set of plural sheets, said additional stage including at least one drive device having at least one predetermined area for contacting said printable material.
Method for diverting sheets of printable material in a web fed rotary printing press, comprising the steps of:
- feeding a first set of plural sheets and a second set of plural sheets of said printable material with a first velocity vector;
- and
- actively imparting a second velocity vector to said first set of plural sheets and a third velocity vector, different from said second velocity vector, to said second set of plural sheets, using at least one drive device having at least one predetermined area for contacting said printable material.
Dependencies are inferred from the claim text.