Doctor blade for use in an inker of a printing machine

Details Doctor blade for use in an inker of a printing machine Doctor blade for use in an inker of a printing machine

1986-07-17

1987-06-30

Burr, Edgar S.

Printing

Inkers

Fountains

101155, 101169, 118261, B41F 3104

Patent

active

046761608

ABSTRACT:
To provide for a tight fit between adjacent tongues (4, 4') subdividing a doctor blade (1), one edge (9) of a tongue (4) facing a slit (5) between the tongues is coated with a material substantially softer than the material of the doctor blade, for example galvanically deposited copper, with a thickness which is in excess of the width of the slit (5) separating the adjacent tongues (4, 4'). Upon closing of the tongues with respect to each other, after having been spread, the tongues will shear off the softer material so that the then formed remaining separation between the tongues will have effectively or quasi zero dimension, thus forming a tight fit between the tongues, while still permitting individual adjustability with respect to a roller against which the doctor blade is to operate.

REFERENCES:
patent: 1871013 (1932-08-01), Shakespeare
patent: 2283830 (1942-05-01), Taylor
patent: 2837024 (1958-06-01), Dougan
patent: 3356067 (1967-12-01), Krasnow et al.
patent: 3529315 (1970-09-01), Dunlap et al.
patent: 3855927 (1974-12-01), Simeth

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