Reusable mandrel for use in a printing press

Details Reusable mandrel for use in a printing press Reusable mandrel for use in a printing press

1996-11-13

1998-06-30

Burr, Edgar S.

Printing

Printing members

Rolling contact

101378, 1014151, 279 211, 2425731, B41F 1310, B41F 128, B23B 522

Patent

active

057718075

ABSTRACT:
A reusable mandrel for use in a plate cylinder of a printing press. The reusable mandrel includes two semi-cylindrical shells spaced slightly apart to form a tube having two opposing longitudinal slots. Disposed inside the tube is a controller that may be activated in order to selectively adjust the diameter of the tube. The tube is preferably set at an initial diameter so that the tube may incrementally accept plate material from a supply mandrel. Thereafter, the controller may be activated in order to decrease the diameter of the tube so that the tube may be removed from a spool of used plate material.

REFERENCES:
patent: 4386566 (1983-06-01), Moss
patent: 4648736 (1987-03-01), Harsch et al.
patent: 4794858 (1989-01-01), Katz
patent: 5516086 (1996-05-01), Tankersley

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