| 摘要 |
<p>A machine for hewing square timbers (1) from round trunks, with the aid of rotary cutters (2,3), before which there is a set of guiding rollers (4) for the trunk to be hewn. The machine comprises two cutter pairs (2,3) disposed immediately after each other and the axes of which form an angle of 90.degree., and the set of trunk guiding rollers (4) consists of at least one pair of pulling wheels (5) with padded circumference and of a thereafter disposed track-resembling pair of sets of pulling rollers(6), all of which together move in transversal direction following the thickness of the trunk that is being hewn, parallel, feeding forward the trunk that is being hewn.</p> |
