Adaptive clamping mechanism for printing plates

Details Adaptive clamping mechanism for printing plates Adaptive clamping mechanism for printing plates

1996-02-26

1997-11-11

Hilten, John S.

Printing

Flexible-sheet-securing devices

101216, 101DIG36, B41F 2712

Patent

active

056852266

ABSTRACT:
An adaptive clamping assembly especially suitable for use in clamping a lithographic plate material around a cylinder. A lead clamp for receiving the leading edge of the plate is fixed along the outer surface of the cylinder parallel to the cylinder's longitudinal axis of rotation. A tail clamp for receiving the trailing edge of the plate is disposed along the outer surface of the cylinder parallel to the lead clamp. The tail clamp is mounted to a take-up assembly that is rotatably mounted within the cylinder bore so that the tail clamp can be selectively positioned along the outer surface of the cylinder relative to the lead clamp. Further rotation of the take-up assembly through rotation of the cylinder tensions the plate around the cylinder for proper imaging or printing.

REFERENCES:
patent: 3154012 (1964-10-01), Fischer
patent: 4018158 (1977-04-01), Borneman
patent: 4202268 (1980-05-01), Becker
patent: 4204471 (1980-05-01), Becker
patent: 4250810 (1981-02-01), Fowler et al.
patent: 4332197 (1982-06-01), Dulin
patent: 4489653 (1984-12-01), Cappel et al.
patent: 4938135 (1990-07-01), Wieland
patent: 5052299 (1991-10-01), Kojima

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