Abstract: In a milling apparatus for removing root swellings from timber logs the log is received on two spaced apart supports with the butt-end of the logs freely overhanging from the supports. A holder-on urges the log against the supports. The holder-on as well as the supports comprise means for rotating the log relative to the holder-on as well as the supports. Under the overhanging butt-end of the log a milling cutter cylinder is arranged for machining the rotating log on the bottom side of the log so as to remove the swellings but no useful wood material.

Abstract: In a method of edging boards and of cutting the wane edge of the board into chip form in connection therewith, there is used an edging-mill (2) having a circular sawblade (3) which separates the wane from the board (1) in the form of a so-called rib (1a). Located downstream of the circular sawblade (3) in the feed direction of the board is a chipping module having a cylindrical milling head (15) which is provided with cutters and which is intended to reduce the rib (1a) to chip form. For the purpose of feeding and guiding the board, there is provided between the circular sawblade and the milling head at least one upper and one lower feeding and guiding roller in addition to infeed rollers and outfeed rollers which are located in the feed direction upstream of the circular sawblade and downstream of the milling head respectively.

Abstract: A method and apparatus for optically scanning a board having at least one wane, comprising illuminating the board from at least one side in a direction substantially parallel to a sawn planar face of the board, receiving light reflected by the wane by an objective, and forming, by means of the objective images of at least the terminal parts of selected illuminated transverse zones of the board substantially in the image plane of the objective, placing a plurality of photosensitive elements generating electrical signals in proportion to the light received substantially at the image plane of the objective, forming the photosensitive elements as one rectilinear array of photosensitive signal generators oriented in the direction of the image of the illuminated transverse zone, and moving at least one of the objective and the array of generators relative to the board such that the point of intersection of the imaging axis of the objective and the board scans the board in the longitudinal direction thereof whereby