the trough plate 28 i e the resting surface of the spring the doctor beam can be moved away from the roll on the other hand in the absence of any space between the setting rod 25 and the stop screw 27 there will be no spring abutment with the roll and if there is no distance between the sleeve 24 and the trough plate 28 there will be no movement of the doctor beam away from the roll this arrangement thus allows the support element 14 to operate in any one of four different ways namely fully resilient i e movement in both directions is permitted resiliency against the roll i e only movement towards the roll is permitted resiliency away from the roll i e movement is only permitted away from the roll and full rigidity i e no movement is permitted either towards or away from the roll the coarse shredder trough which has previously been used solely to transport pulp is also now used in accordance with the present invention as a reference point for the doctor sections the coarse shredder trough already has the form of a beam construction and the additional use of the trough to suspend the doctor sections means that the trough must be strengthened with stronger side beams the trough 5 thus becomes the rigid part and transfer of the web is effected by doctor sections that are suspended individually from the trough 5 the modular construction also enables the doctor arrangement to be used with presses of mutually different sizes where the number of presses is the sole parameter because the doctor sections are thus short and constructed from a single plate the temperature problems existing with traditional box constructions no longer.