Lateral perforation vertical registration device for offset pres

Details Lateral perforation vertical registration device for offset pres Lateral perforation vertical registration device for offset pres

1985-03-01

1986-07-08

Fisher, J. Reed

Printing

Selective or progressive

Numbering

101226, B41F 1312, B41L 4902, B41G 700

Patent

active

045986380

ABSTRACT:
A lateral perforation vertical registration device for an offset press in which the position of lateral perforations formed on printing sheets can be accurately set without the need for running a number of test sheets. A lateral perforating position reading plate is provided made of a transparent material and having both lateral and vertical scales. A printing sheet is placed on the perforating position reading plate prior to printing to determine the position of lateral perforating. A vertical scale provided on the outer peripheral surface of a numbering device mounting cylinder is then adjusted relative to a fixed pointer to correspond to the value read on the reading plate.

REFERENCES:
patent: 4177730 (1979-12-01), Schriber et al.
patent: 4426929 (1984-01-01), Fujisawa et al.

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