Inker for rotary printing machine, and method

Details Inker for rotary printing machine, and method Inker for rotary printing machine, and method

1984-02-01

1985-06-04

Fisher, J. Reed

Printing

Inkers

Roller

B41F 3136, B41L 2732

Patent

active

045207291

ABSTRACT:
To permit, selectively, thicker or thinner ink films being transferred from an inker supply (1, 2) having a doctor blade (2) to a plate cylinder (10) via ink application rollers (8, 9) and an ink roller train, without readjustment of the position of the doctor blade (2) with respect to the ink roller (1), the ink roller train has a main train of ink rollers, and auxiliary trains or sets of paired ink rollers, the main ink roller train being so arranged that some of the rollers can be physically shifted to define a gap in the ink transfer path through the main roller train, and, instead, the gap is bridged by rollers of the auxiliary roller train (B). Inserting more rollers, serially, in the path of ink between the ink roller (1) and the plate cylinder (10) provides for a thin film of ink for offset printing; a lesser number of rollers provides a thick film of ink, for example for use in di-litho printing.

REFERENCES:
patent: 2436455 (1948-02-01), Seybold
patent: 3150589 (1964-09-01), Senogles
patent: 4129077 (1978-12-01), Fischer
patent: 4350094 (1982-09-01), Fischer
patent: 4361090 (1982-11-01), Klingler et al.

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