The present disclosure relates to an arrangement for transferring fluid to a guide bar in a chain saw. A channel can extend from a chain saw body to the fastening arrangement of the guide bar. The channel can include a cavity through the entire channel, a first end of the cavity being connected to a feed channel provided in the chain saw body and a second end thereof to a counter channel provided in the fastening arrangement. The counter channel, in turn, is arranged to extend to the guide bar. The channel is thus arranged to guide fluid flowing in the feed channel provided in the chain saw body through the channel and further through the counter channel provided in the fastening arrangement to the guide bar.

A work implement for a work vehicle includes a boom having a chassis attachment end and an arm attachment end, an arm including a boom attachment end and a tool attachment end, and a work tool coupled to the tool attachment end of the arm. The boom attachment end is pivotally coupled to the arm attachment end of the boom. At least one of the boom and the arm includes a first portion and a second portion movably coupled to the first portion between a first orientation with respect to the first portion and a second orientation with respect to the first portion. At least one fastener is coupled between the first and second portions to selectively secure the second portion in the first orientation and the second orientation with respect to the first portion.

A work implement for a work vehicle includes a boom having a chassis attachment end and an arm attachment end, an arm including a boom attachment end and a tool attachment end, and a work tool coupled to the tool attachment end of the arm. The boom attachment end is pivotally coupled to the arm attachment end of the boom. At least one of the boom and the arm includes a first portion and a second portion movably coupled to the first portion between a first orientation with respect to the first portion and a second orientation with respect to the first portion. At least one fastener is coupled between the first and second portions to selectively secure the second portion in the first orientation and the second orientation with respect to the first portion.

A guide bar for a chain saw comprising two opposite elongate surfaces and a slot formed between said opposite sides running along the periphery of the guide bar, in order to receive and retain the chain during cutting. At least one of the elongate surfaces is furrowed across its surface in the direction of the cutting movement of the guide bar. The invention also relates to an apparatus for operating the chain saw in a forestry machine.

A guide bar for a chain saw comprising two opposite elongate surfaces and a slot formed between said opposite sides running along the periphery of the guide bar, in order to receive and retain the chain during cutting. At least one of the elongate surfaces is furrowed across its surface in the direction of the cutting movement of the guide bar. The invention also relates to an apparatus for operating the chain saw in a forestry machine.

A cutting tooth includes a tooth body having a mounting side, a front face spaced from the mounting side, and a plurality of lateral faces extending between the mounting side and the front face, the tooth body having an interior hardness, and a coating applied to at least one of the lateral faces to form a lateral hardface, the lateral hardface having a hardface hardness greater than the interior hardness, an edge of the lateral hardface closest to the front face and a portion of the front face adjacent the edge of the lateral hardface defining a cutting edge region of the tooth.

A timber working device, comprising a frame, having a feed axis, a drive system, configured to feed at least one stem along the feed axis, at least a pair of upper knives or lower knives movably attached to the frame, wherein the knives are configured to be controllable each by an actuator to open and close around a stem, a tilt mechanism comprising a controllable tilt bracket pivotably attached to the frame, to control a tilt position of the frame in relation to the tilt bracket.

The improved thinning or clearcut head is configured a tree harvesting vehicle supported by a plurality of wheels and tires. The improved thinning or clearcut head is adapted for use in cutting down a target tree. The improved thinning or clearcut head comprises a tree harvesting vehicle and a lateral pivot apparatus. The tree harvesting vehicle comprises a harvest vehicle and a cutting tool. The lateral pivot apparatus attaches the cutting tool to the harvest vehicle such that the cutting tool rotates around a lateral axis of rotation that is parallel to the center axis of the target tree. The improved thinning or clearcut head aligns the cutting tool with the target tree such that the alignment axis between the clamping arms of the cutting tool and the target tree is offset from primary sense of direction of the harvest vehicle.

The improved thinning or clearcut head is configured a tree harvesting vehicle supported by a plurality of wheels and tires. The improved thinning or clearcut head is adapted for use in cutting down a target tree. The improved thinning or clearcut head comprises a tree harvesting vehicle and a lateral pivot apparatus. The tree harvesting vehicle comprises a harvest vehicle and a cutting tool. The lateral pivot apparatus attaches the cutting tool to the harvest vehicle such that the cutting tool rotates around a lateral axis of rotation that is parallel to the center axis of the target tree. The improved thinning or clearcut head aligns the cutting tool with the target tree such that the alignment axis between the clamping arms of the cutting tool and the target tree is offset from primary sense of direction of the harvest vehicle.

A forestry machine configured to cut timber, where the forestry machine comprises a felling head including a support frame having an accumulation pocket, an accumulating arm, and a harvest arm. The forestry machine further comprises a stator having coils thereon adapted to produce a time varying stator magnetic field, a rotor having at least either a set of slots or a set of permanent magnets mounted thereon facing the stator and adapted to produce a radially directed flux or an axially directed flux. The rotor is rotatably coupled to the stator in axial alignment therewith by the time varying stator magnetic field. The rotor comprises a saw blade.