Apparatus for coating paper webs

Apparatus for coating paper, comprising:

• a frame mounted in a support means so as to be pivotable about a first pivot axis and capable of being set in selectable positions;
• a holder mounted in said frame so as to be pivotable about a second pivot axis, which second pivot axis lies parallel to the first pivot axis;
• a clamping device for clamping at least one doctor blade in the vicinity of one of its ends, which clamping device is mounted in said holder so as to be pivotable about a third pivot axis and is capable of being set in selected positions, said third pivot axis lying parallel to the first pivot axis;
• said holder includes a support body which supports the doctor blade in its operating position, where it has two opposite bends, on its side opposite the paper web at a point between its free end and its end which is clamped in the clamping device;
• and
• for the distance (a) of the free end of the doctor blade from the line of contact with the support body, for the distance (b) of this line from the point where the doctor blade projects from the clamping device, for the distance (c) of this projection point from the third pivot axis and for the distance (d) of the third pivot axis from the plane defined by said line of contact and said first pivot axis,
• the conditions a+b.ltoreq.c and d<500 mm
• hold true.