Method and device for setting up a web of paper having lateral d

Details Method and device for setting up a web of paper having lateral d Method and device for setting up a web of paper having lateral d

1996-07-12

1998-06-23

Peterson, Kenneth E.

Cutting

Processes

Making and using a registration cut

83371, 834671, B26F 102

Patent

active

057689644

ABSTRACT:
A method and a device (10) for setting up a web (1) of paper having lateral dragging holes (2) in a paper processing and/or printing apparatus. The device (10) is capable of making a reference hole (3) at the midway line (4) between two successive lateral holes (2a,2b). According to the method, when the web (1) is dragged by a paper dragger (7), reference hole (3) passes under a sensor (6) which signals the passage of it to a control unit. The control unit stores such passage and starts the linear measurement of the web from that moment, by an encoder. The control unit operates a perforating apparatus (8) which makes on the web transversal perforations (9) at the chosen distance for one another. Transversal perforations 9 are made coinciding with the midway line of two successive lateral dragging holes.

REFERENCES:
patent: 3763728 (1973-10-01), Blackman
patent: 3854359 (1974-12-01), Tagami
patent: 4634162 (1987-01-01), Arnold
patent: 4768410 (1988-09-01), Wood
patent: 5036739 (1991-08-01), Clar
patent: 5470300 (1995-11-01), Terranova

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