| 摘要 |
<p>An apparatus for mounting on the free end of an extendible and retractable boom for handling trees comprising a first rigid frame assembly, a second frame assembly mounted on said first frame assembly at one end thereof and having a pair of arms pivotally mounted thereon, and a third frame assembly mounted on the opposite end and having a pair of arms pivotally mounted thereon. A further pair of arms are pivotally mounted on the third frame assembly and have cutting members for severing a tree. The apparatus provides a felling head having a pair of grapples spaced apart from one another longitudinally along a tree grasped thereby and a device for severing the grasped tree. Tree feed means is mounted on the first frame assembly for propelling a tree endwise between the arms of the second and third assemblies embracing such tree. The arms pivotally mounted on the second frame assembly have cutting edges for removing limbs from the tree as it is propelled endwise.</p> |
