plate 14 in particular lower lip support plate 14 1 of lower nozzle wall 11 of headbox nozzle 10 is provided with a chamfer 34 forming a second bevel 35 in region 33 facing table leaf 3 of central assembly 2 the respective lower lip support plate 14 of lower nozzle wall 11 of individual headbox nozzle 10 is equipped on the upper and outlet side with a preferably positionable lower lip 43 fig7 is a schematic sectional side view of inventive headbox 1 which is depicted in partial sectional view in fig2 in regard to the general structural design of the illustrated inventive headbox 1 we refer you to the design and description of known headbox 1 illustrated in fig1 in regard to the inventive design of headbox 1 we refer you to the design and description of the inventive headbox 1 illustrated in fig2 it can be clearly seen that individual ribs 29 of inventive headbox 1 are connected indirectly with bed plate 20 the indirect connection occurs on the inlet side by means of at least one machine wide hinge 44 and one pedestal 21 and on the outlet side by means of several lifting elements 45 arranged at a distance from each other and which are.