Reversible lockup system for magnetically securable printing pla

Details Reversible lockup system for magnetically securable printing pla Reversible lockup system for magnetically securable printing pla

1985-07-15

1986-12-16

Crowder, Clifford D.

Printing

Flexible-sheet-securing devices

101382MV, 101DIG12, B41F 2702, B41F 2712

Patent

active

046288155

ABSTRACT:
An improved printing cylinder/plate lockup combination in which the plate cylinder has a groove running laterally across its width. A magnet contained in a magnetic insulator is secured to the cylinder within the groove. The magnetic insert contains four register pins in a configuration which provides for plate cylinder reversibility while fitting into a small arc of the cylinder's surface. The magnetically securable plate is prepared with a variety of openings adjacent the trailing and leading ends of the plate which secure the plate in predetermined registry without the need for critical manufacturing tolerances.

REFERENCES:
patent: 2621592 (1952-12-01), Faeber
patent: 3160096 (1964-12-01), Norton
patent: 3496866 (1970-02-01), Nystrand
patent: 3670646 (1972-06-01), Welch, Jr.
patent: 3882775 (1975-05-01), Lytle et al.

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