Photocopying – Contact printing – Exposing on sensitized printing press plate or cylinder
Patent
1990-04-03
1991-01-22
Hayes, Monroe H.
Photocopying
Contact printing
Exposing on sensitized printing press plate or cylinder
355 86, 355 88, G03B 2704
Patent
active
049874438
ABSTRACT:
A method and apparatus for forming and imaging press plates whereby the image is exposed on the press plate under conditions which duplicate the manner in which the plate will be mounted to a specific press cylinder so as to insure alignment of the image with the rotational axis of the cylinder and wherein the apparatus includes an exposure device including a platen having a forward beveled end to which is engaged the forward bent end of a preformed press plate and which also includes rear tensioning pins which are engageable through preformed holes formed in the trailing edge of the press plate. The apparatus further includes a pair of reference pins to which a stripped film is mounted with the reference pins being relatively adjustable so as to alter the alignment of the pins so that an angular adjustment of the image of the film may be made with respect to the forward bent end of the press plate to compensate for any deviation in alignment in a given press cylinder between the press plate receiving slot and the rotational axis of the cylinder.
REFERENCES:
patent: 3520606 (1970-07-01), Gush et al.
patent: 3794486 (1974-02-01), Luther
Sawyer Myron A.
Sawyer, Jr. Sterling S.
LandOfFree
Method and apparatus for imaging press plates does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and apparatus for imaging press plates, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for imaging press plates will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1557549