Abstract: A shredder head for passing over a terrain containing vegetation and rocks so as to silviculturally process said terrain. The shredder head includes an elongated support shaft, a rotor, and a plurality of first and second sections provided longitudinally along a peripheral support surface area of the rotor. The second sections are each disposed between pairs of first sections so as to have an alternation of first and second sections longitudinally along the rotor. Each section includes at least one supporting element for supporting at least one processing tool configured for cooperating with the terrain via a rotation of the rotor for processing the terrain and corresponding vegetation and rocks present therein.

Abstract: A tandem wheel assembly including a support frame; a pair of wheels; a motor mounted onto the support frame for providing power to the wheels so as to impart a rotation of the wheels; and a power transmission system operatively connected between the motor and the wheels for transmitting power from the motor to the wheels. The power transmission system has a rotatable power transmission shaft including first and second components each having a longitudinal axis, the first and second components being connected to each other via coupling means for enabling the first and second components to rotate together as part of the rotatable power transmission shaft, while allowing the longitudinal axis of the second component to be displaced at an angle ? with respect to the longitudinal axis of the first component, so as to sustain a transversal load component subjected to the rotatable power transmission shaft.

Abstract: A land clearing tractor and process are provided for selectively clearing a land of brush and trees. The tractor has a traction unit for moving the tractor along a direction of travel. A supporting frame is connected to the traction unit. The frame has first and second sides, and a raised section between the first and second sides. A first shredder head is operatively connected to the first side of the frame and oriented parallel to the direction of travel. The first shredder head is movable between elevated and lowered positions for clearing brush and trees in a first band. A second shredder head is operatively connected to the second side of the frame. The second shredder head is parallel to the first shredder head and is spaced apart therefrom. The second shredder head is movable between elevated and lowered positions for clearing brush and trees in a second band spaced apart from the first band. Thereby, the tractor leaves between the first and second bands a residual band of brush and trees.

Abstract: A mobile silvicultural apparatus for use in a land of trees comprising mature trees and immature trees. The apparatus includes a steerable wheeled support frame, an articulated boom, a motor system, and a control system. The steerable wheeled support frame has a horizontally extending ground-clearing section, and first and second opposite vertical side sections. The ground-clearing and side sections define a tunnel-shaped passage through which the immature trees are allowed to pass as the support frame travels thereover. The articulated boom is mounted to the support frame for selectively manipulating the mature trees. The motor system is used for imparting motion to the support frame and the control system is used for controlling the steerable support frame, the motor system, and the articulated boom.

Abstract: A land clearing tractor and process are provided for selectively clearing a land of brush and trees. The tractor has a traction unit for moving the tractor along a direction of travel. A supporting frame is connected to the traction unit. The frame has first and second sides, and a raised section between the first and second sides. A first shredder head is operatively connected to the first side of the frame and oriented parallel to the direction of travel. The first shredder head is movable between elevated and lowered positions for clearing brush and trees in a first band. A second shredder head is operatively connected to the second side of the frame. The second shredder head is parallel to the first shredder head and is spaced apart therefrom. The second shredder head is movable between elevated and lowered positions for clearing brush and trees in a second band spaced apart from the first band. Thereby, the tractor leaves between the first and second bands a residual band of brush and trees.