Patent ID: 7537556
Filing Date: 2009-05-26
Classification: B42C,B65H,G03G

Abstract:
1. A paper folding assembly adapted to receive paper sets after they have been marked, compiled and saddle stitched, said assembly comprising: an upper clamp mechanism, at least two folding cylinders located below said upper clamp mechanisms, gap adjusters comprising a sensor and a controller and a space between said upper clamp mechanism and said folding cylinders, said space adapted to receive said sets after they have been marked and processed a gap or nip located between said folding cylinders, said upper clamp mechanism comprising at least two driven nip rollers with a folding blade or knife there between, said upper clamp mechanism configured to move downwardly to permit said driven nip rollers and said knife to contact an upper surface of said set and configured thereby to directly measure a thickness of said set by a clamping action of said upper clamp mechanism, once said thickness is measured by said upper clamp mechanism and said thickness is conveyed to said gap adjusters, said gap adjusters are configured to continuously alter said gap or nip in accordance with said thickness and to accommodate said set as it is deflected downwardly by an action of said knife to centrally fold said set between said folding cylinders.