Printing press with plate cylinder skew and throw off

Details Printing press with plate cylinder skew and throw off Printing press with plate cylinder skew and throw off

1982-09-30

1984-07-10

Pieprz, William

Printing

Rolling contact machines

Rotary

101218, B41F 1328, B41F 1338

Patent

active

044585900

ABSTRACT:
A printing press comprises a frame. A plate cylinder is mounted in the frame for rotation about a first axis and a blanket cylinder is mounted in the frame for rotation about a second axis. The plate cylinder and the blanket cylinder have a contact pressure therebetween for printing operation. A skew eccentric is supported by the frame and is associated with at least one end of the plate cylinder. The skew eccentric is operable to change the relative angular positions of said first and second axes. A means is connected with said skew eccentric for maintaining the contact pressure between the plate cylinder and the blanket cylinder substantially unchanged upon rotation of the skew eccentric.

REFERENCES:
patent: 1798974 (1931-03-01), Corse
patent: 2568761 (1951-09-01), Peyrebrune
patent: 2874636 (1959-02-01), Royer et al.
patent: 2986086 (1961-05-01), Siebke
patent: 3072050 (1963-01-01), Wolff
patent: 3163110 (1964-12-01), Thompson
patent: 3183297 (1980-01-01), Skiera
patent: 3323452 (1967-06-01), Pasquinelli
patent: 3470816 (1969-10-01), Piecha et al.

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