| 摘要 |
A rotating cutterhead projects forward from a tractor or other suitable vehicle and fells trees as the tractor is moved over land to be cleared. The tree-felling cutterhead rotates in a direction such that its leading face moves upward and then rearward to kick the butt of a felled or falling tree upward and then move it rearward onto an apron. The apron forms the bottom of a flared throat leading to a chipping cutterhead. An overhead live feed roll or a swinging feed rake positively feeds each tree rearward along the apron to the chipping cutterhead. Upright cutterheads may be carried at the sides of the flared throat to delimb a tree, or at least to crush the limbs inward, as the tree is moved rearward by the upper feed roll or rake.
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