Headbox of a paper machine

摘要

A dosing appts. (5) for addn. or removal of fluids to or from a paper machine applicator (1) has at least two openings with a transverse spacing connected to at least one applicator chamber into which the paper pulp flows during operation. The dosing appts. has at least one fluid reception chamber (6) contg. dosage openings (9,9',9'') equipped with adjustable throttle devices (4) to control the dosage of the added or removed fluid.