Inking system for rotary offset printing machine

Details Inking system for rotary offset printing machine Inking system for rotary offset printing machine

1981-01-14

1982-10-12

Apley, Richard J.

Printing

Inkers

Fountains

B41F 3102

Patent

active

043533000

ABSTRACT:
To prevent escape of ink from a backing plate of an ink trough in which a duct roller is rotatably positioned, a flexible element, for example of plastic, in the form of an elongated rail with two extending plate portions, is connected, respectively, to the backing plate and to the doctor blade, for example by adhesion to the doctor blade and by clamping with a clamping rail to the backing plate, thus permitting removal of the doctor blade together with the plastic element for replacement of the doctor blade. The adjustment mechanism, preferably utilizing adjustment screws having threads of opposite direction of rotation in different positions in a threading block and a threading plate attached to the doctor blade, provides for accurate adjustment, protected against contamination by the ink by the plastic element bridging any gap between the backing plate and the doctor blade, while permitting respective zone adjustment of the position of the doctor blade with respect to the duct roller.

REFERENCES:
patent: 1825999 (1961-10-01), Fankboner
patent: 2210243 (1940-08-01), Huck
patent: 2479822 (1949-08-01), Enkur et al.
patent: 3559573 (1971-02-01), Hantscho
patent: 3589288 (1971-06-01), Lake
patent: 3922966 (1975-12-01), Despot
patent: 4050380 (1977-09-01), Pfizenmaier
patent: 4058058 (1977-11-01), Hantscho
patent: 4089264 (1978-05-01), Jeschke et al.
patent: 4242958 (1981-01-01), Jeschke

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