Abstract: A support bar unit for supporting at least one functional device in a machine for the production and/or the processing of a fiber material web includes a first partial support beam and a second partial support beam. The first partial support beam supports the functional device, while the first partial support beam is supported on the second partial support beam. Further, the first partial support beam surrounds the second partial support beam, at least sectionally.

Abstract: A doctoring device for an apparatus designed to apply a liquid or viscid medium onto a moving base surface includes a metering unit having a coater rod and a coater rod bed. The metering unit is attached to the support beam and is positioned so that it can be pressed against the base surface. A pressure-elastic support arrangement is disposed between the coater beam and the coater rod bed. The coater rod bed is supported pressure-elastically by the support beam via the support arrangement in at least two support directions that are perpendicular to each other. The spring rate of the support arrangement is adjustable in at least one of the support directions. A preferred support arrangement includes pressure hoses which are assigned to each of the two support directions. The pressures in these hoses can be adjusted, independently from each other, to a pre-determined level via a pressure source.

Abstract: The invention concerns an applicator mechanism for the coating of running webs of paper or cardboard, with an applicator chamber which carries at least 0.01 bar of pressure, is formed on a roll and defined in running direction by a doctor element on the trailing side of the coating chamber with respect to the direction of movement of the outer surface of the web or roll, and a barrier wall disposed at the leading side of the coating chamber with respect to the movement of the outer surface of the roll or web.

Abstract: A roll doctor assembly as dosing element for a coater serving to coat a traveling web (e.g., paper web) features a rotatable doctor bar (14) that extends transversely across the web width. The doctor bar (14) is fitted in a doctor backing (12). The doctor backing (12) extends as well transversely across the web width. According to the invention, the doctor bar (14; 14'; 14") and the doctor backing (12; 12'; 12") are part of a modular system, so that the doctor bar is exchangeable for another with different outside diameter and, consequently, the doctor backing is exchangeable for another with different bearing diameter. The different doctor backings are adapted to one another to the effect that the axes of rotation of the different doctor bars (14; 14'; 14") assume the same position relative to the support beam (10).

Abstract: A spreading system or coating system, preferably for webs of paper or cardboard, with a doctor element fashioned as a doctor blade. A substrate element B to be coated serves as backing for the doctor blade secured in a mounting. A first load system is located near the (exposed) dosing edge of the doctor blade. A further load system acts on the doctor blade between the mounting and first load system. A pressure bar is fastened to the doctor blade in the area of its exposed dosing edge, preferably between 0 and 40 mm away from it, or bears on it, and the first load system acts on the pressure bar.