| Patent Number |
Title Of Patent |
Date Issued |
| RE29235 |
Multiple tree harvester of the flexible arm type |
May 31, 1977 |
| A mobile harvester which is capable of severing trees at their base, one at a time, and gathering trees, one at a time, while the previously accumulated trees are rigidly held together. The harvester has tree gathering means located vertically above a shear blade mechanism and this g |
| 4491163 |
Method and apparatus for felling trees |
January 1, 1985 |
| There is provided a felling head for attachment to a boom. The felling head includes an upper part and a lower part. The upper part has at least one brace portion and a grapple adapted to clasp a tree trunk against the brace portion. The lower part includes a circular saw blade mounted i |
| 4451194 |
Integral heel tree length grapple |
May 29, 1984 |
| There is provided a grapple for lifting and maneuvring elongated items, which includes a main frame and a sub-frame, the two frames being pivotally mounted with respect to each other about a substantially vertical axis. The sub frame includes grappling jaws and heel elements which ar |
| 4446897 |
Improvements in disc felling heads |
May 8, 1984 |
| There is provided a method and apparatus for felling a tree. A tree is cut through with a circular saw, and then substantially immediately after the cutting, the tree is clasped by a grapple means. The apparatus for cutting the tree may include an offset exposed arc of the circular saw, |
| 4221245 |
Tree harvester with saw and shear |
September 9, 1980 |
| Tree cutting equipment that may constitute a part of the head of a tree harvester includes a saw assembly and a shear assembly, the shear and saw being movable towards each other, preferably in substantially the same plane. A stop associated with the shear assembly and engageable with th |
| 4167960 |
Rail-riding limber and topper |
September 18, 1979 |
| In an apparatus for de-limbing trees, there is provided a carriage moving longitudinally on a rail, and having a pair of de-limbing arms adjacent one end which are mounted for pivoting movement with respect to the carriage. Each arm defines a concavity adapted to pivot into contact with |
| 4148526 |
Apparatus for sorting trees |
April 10, 1979 |
| Apparatus is provided for sorting trees in situ in the forest immediately after being cut, the steps of limbing and topping optionally being included prior to the sorting operation. To this end a vehicle is provided having at least four dumping bunks. Trees of different sizes or species |
