Abstract: In order to enable a satisfactory degree of barking when removing the limbs and bark from wood in a barking drum having internally a plurality of log lifters and a plurality of slots arranged around and along the drum for the discharging of waste material freed, said drum comprising two axially aligned drum halves each comprising a main treatment section with a transition section located between them, said transition section is provided with a separating section comprising an arresting surface for the waste material and an annular outlet opening cooperating with the arresting surface and arranged in the dividing plane between the two drum halves, for discharging limbs and bark caught by the arresting surface.

Abstract: A device in a paper manufacturing machine is described for removal of maculature collecting underneath the paper web on rupture of the paper comprising a cloth alternatively stretched beneath the machine and removable at one end thereof by a wind up roller to remove and discharge the maculature from the machine and stretchable beneath the machine by wires connected to the other end of the cloth and to driving means.