Abstract: A boom unit for a tree processing machine having a boom with a square cross-section. The boom unit has a boom support with a front boom mounting at the front end of the support and a rear boom mounting at the rear end of the support. The boom is movably mounted through the front and rear boom mountings and is positioned to have a corner of the boom on the bottom and an opposite corner of the boom on the top directly over the bottom corner. The front mounting has a pair of front, bottom rollers arranged in a v shape to cradle the boom with the bottom corner of the boom between the rollers and a single, top, guide member above the bottom rollers and centered with respect to the bottom rollers to ride on the top corner of the boom to hold the boom against the bottom rollers.

Abstract: An apparatus for gripping a tree, the apparatus being attachable to a carrier boom, the apparatus being usable with a cutting device for cutting a portion of the tree, the apparatus comprising: a body, the body being mountable to the carrier boom; a pair of gripper arms mounted to the body, the pair of gripper arms being selectively movable between an open configuration in which the tree is insertable therebetween and a closed configuration in which the pair of gripper arms is able to grip the tree therebetween; and a support arm operatively coupled to the body for supporting the cutting device, the support arm including a cutting device mount for mounting the cutting device thereto, the support arm being configured, sized and operatively coupled to the body in a manner such that the cutting device is rotatable relatively to the pair of gripper arms about three different rotation axes; whereby, when the pair of gripper arms grips the tree, the pair of gripper arms stabilizes the support arm relatively to the

Abstract: A method and system are provided for taking out or culling, transporting and drying of culled or removed wood from a forest, where the wood is ground or cut into small fragments or units, such as chips, powder, or the like, and then transported out of the forest to a collecting and/or processing site. The ground or fragmented wood is transported over long distances, out from the forest, to a remotely placed collecting and/or processing site. The ground or fragmented wood being transported by a flow of air, and wherein the flow of air transporting the fragmented units is supplied with energy to secure reduction of the water content of the fragmented units during the transport.

Abstract: A sawing and chipping device for harvesting and chipping trees including a rotatable saw for cutting a tree, conveyor for conveying the cut tree and a chipping element for chipping the cut tree. The saw includes top and bottom surfaces and a peripheral edge. The chipping element is mounted on the saw top surface. When engaging a tree with the saw during rotation thereof, the tree is cut and subsequently conveyed by the conveyor onto the saw top surface to be chipped by the chipping element. In another aspect, the saw is mounted to a housing having an opening to receive tree chips leading to a container positioned beneath the saw bottom surface and including an outlet. The bottom surface includes turbine blower means for blowing the chips through said outlet during rotation of the saw. In another aspect, the conveyor is configured to convey a cut tree inwardly and downwardly. Saws for such devices are also disclosed.

Abstract: A tree harvester head (12) comprises first and second saws (32, 38), each of which comprises a cutting chain (42), and a lubrication system (44) configured to lubricate the cutting chains (42) of the first and second saws (32, 38). The lubrication system (44) comprises a source of pressurized lubricant (46) and a diverter valve (48) configured to divert flow of pressurized lubricant, from the source of pressurized lubricant (46), between the first and second saws (32, 38) for lubrication of the respective cutting chains (42).

Abstract: A ring saw includes a disc body having a circumferential edge with a first circumferential bearing groove. A cutting ring is mounted for rotation about the circumferential edge of the body. The cutting ring has an inner annular surface that carries both a circumferential gear profile and a second circumferential bearing groove. Ball bearings are positioned in side by side relation in a circumferential bearing race defined by the first circumferential bearing groove and the second circumferential bearing groove. A circumferential seal is provided between the body and the cutting ring, which is adapted to prevent abrasives from entering into the bearing race and interfering with ball bearings. At least one driving gear is carried by the body and engaged with the circumferential gear profile to impart rotational movement to the cutting ring.

Abstract: A rotary dangle head having continuous rotation includes a rotator, a continuous rotary hydraulic union and a dangle head. The rotator includes a support base, a slewing ring, a mounting plate and a ring rotator. The slewing ring includes an outer bearing ring and an inner bearing ring. The dangle head includes a retention bracket and a processing head. The processing head is pivotally retained by the retention bracket. The outer bearing ring is attached to a bottom of the support base. The inner bearing ring is attached to a top of the mounting plate. The ring rotator drives the outer bearing ring. The retention plate is attached to a bottom of the mounting plate. The continuous rotary hydraulic union is connected to hydraulically driven components mounted to the processing head.

Abstract: An accumulator arm for a felling head has inner and outer arms which are hydraulically driven open and closed. The inner and outer sides of the outer arm are curved away from an accumulation pocket and toward a harvesting arm, wherein the accumulator arm can be pulled around a newly cut tree to add the tree to the accumulation pocket with a lesser amount of hydraulic force and with lesser damage to the trees.

Abstract: A rotation system for a felling head mounted to a boom, the rotation system including: an adapter which is pivotally mounted to the boom; a housing fixed to the adapter; a gear system enclosed between the housing and the felling head and operable to allow the felling head to rotate with respect to the housing about an axis of rotation; and a plurality of actuators mounted to the housing and engaging the gear system, the plurality of actuators being operable to drive the rotation of the felling head, the plurality of actuators engaging the gearing system at positions below the axis of rotation so as to provide a vertical support therefor.

Abstract: A saw speed readiness system for use with a forestry machine comprises a controller configured to receive a threshold selection signal, and change a speed readiness threshold from a first saw speed to a second saw speed in response to the threshold selection signal, the speed readiness threshold representing a non-zero saw speed above which a disk saw is considered to be ready for a tree-felling operation but below which the disk saw is considered not to be ready for the tree-felling operation. An associated method is disclosed.

Abstract: A tree processing vehicle comprising a prime mover and a pair of tracks for propelling the tree processing vehicle, the prime mover being in a driving relationship with the tracks. The tree processing vehicle also comprises an operator cabin comprising a front side, a rear side, and a pair of lateral sides between the front side and the rear side. A first one of the lateral sides defines an access opening allowing an operator to enter or exit the operator cabin. The operator cabin also comprises a door for closing the access opening and a set of controls for allowing the operator to control the tree processing vehicle. The tree processing vehicle also comprises a pair of arms pivotally movable across a range of angular positions.

Abstract: The accumulator and harvesting arms in a front cut felling head are offset to one side of the machine so as to hold a bundle of cut trees more to one side than the other so as to create more room in front of the accumulator arms to the side of the bundle in which to cut and receive a freshly cut tree.

Abstract: A tree and brush cutter is attached to a dipper stick of an excavator or backhoe to be operated by a curl cylinder on the dipper stick. Blades on the cutter face the boom side of the dipper stick where an operator can observe their opening and closing. A link system on the cutter transmits an advancing motion of the curl cylinder into a cutting motion of the blades and a retraction motion of the curl cylinder to opening of the blades.

Abstract: An apparatus for extracting plant species of varying heights and varying diameters adapted to be mounted on a conventional land vehicle includes a frame and an extracting member rigidly attached to and extends outwardly from a bottom edge of the frame. The extracting member includes a first elongated extracting portion having a knife-like free end, a pair of second extracting portions each positioned adjacent a respective edge of the first elongated extracting portion and having a cutting edge formed generally perpendicular to the respective edge of the first elongated extracting portion, and a pair of third extracting portions each connecting an end of the cutting edge of the second extracting portion with a respective end of the bottom edge of the frame. A pair of elongated member are attached to the rear surface of the frame for attaching it to the land vehicle.

Abstract: A saw attachment for pruning trees, shrubs and undergrowth that can be used on a hydraulic vehicle, having auxiliary line connections for accepting attachments. The attachment has cutting blades located at the ends of a swing arm, which is mounted on a plate capable of holding a single, fixed angle of orientation from 0° to 90° with respect to the imaginary plane of the direction of travel of the vehicle. Depending on the type of host vehicle on which the attachment is used, the attachment can be mounted using either a connector plate or an articulated extension arm.

Abstract: A flip-out function converter apparatus is attached to and functions in combination with a tree-mountable frame apparatus for use by arborists in handling loads in a wide variety of arbor rigging procedures. When positioned in its operational mode, the function converter apparatus enables additional functional rigging procedures to be performed which could not be effectively and efficiently performed with the original frame apparatus. When the function converter apparatus is positioned in its stowed mode in an unused recessed region of the frame apparatus, the frame apparatus can be used in its original application mode without interference from the function converter. In an embodiment of a frame apparatus with spikes, the function converter in its operational position enables the frame apparatus to be used in rigging procedures on live trees without the frame spikes producing damage to the bark and cambium layer of the live trees.

Abstract: A load carrier (10) for transporting logging residues comprises a horizontal frame (14) and a load-accommodating rack (15) mounted on the frame. The rack (15) includes a rack bottom (20) and a pair of upstanding rack side members (21, 22) mounted on the rack bottom along respective opposite sides of the rack bottom. An upstanding rack support (23) is provided on the frame (14) along a longitudinal side thereof. An upper end of one of the rack side members (21) is pivotally connected to the top end of the rack support (23). The rack (15) is pivotable relative to the rack support (23) and the frame (15) through an angle greater than 90° about a horizontal axis between a lower load-accommodating position with the rack bottom (20) resting on the frame (14) and a position for gravity dumping of a load of logging residues held in the rack (15) onto the ground by the side of the load carrier.

Abstract: A forestry machine includes a frame, and a felling saw carried by the frame. The felling saw includes a saw head. A tree counter associated with the saw head includes an audio sensor providing an output signal representing an audio parameter associated with a cutting action of the saw head. An electrical processing circuit is coupled with and receives the output signal from the audio sensor. The electrical processing circuit determines a tree count associated with the saw head, dependent upon the output signal from the audio sensor.

Abstract: A harvester for a forestry machine comprises grapples, a cutting device, trimming devices, and advancement devices for grasping, cutting, trimming, and advancement in the axial direction, respectively of a tree stem. Further, the harvester includes a measurement device for measuring the length of the tree stem and a measurement device for measuring how the transverse dimension of the tree stem varies along its length. The measurement device includes a movable measurement device for contact-free detection of the outer contour of the tree stem, from which the diameter is calculable. The measurement device is located between the trimming device and the advancement device for counteracting dirtying of the measurement device. A method for measuring the transverse dimension of a tree stem is disclosed.

Abstract: A tree felling machine has a main pump for operating functions of the machine such as the drive wheels or tracks, the steering, the brakes, and the lifting and extension of the boom, and a separate saw pump for driving the cutting element, for example, a circular disc saw driven by a hydraulic motor. Both pumps are driven by the same prime mover, i.e. the same internal combustion engine, and the power division between the two pumps is determined by the operator and by the hydraulic control system. In particular, a control provided in the cab is controllable by the human operator to limit the maximum power that the saw pump can draw from the prime mover. In addition, the power that the saw pump can draw from the prime mover is limited by a combination of the displacement setting of the main pump, the output pressure of the saw pump, and the pressure exerted on the load by the main pump.

Abstract: Disclosed is a method and apparatus for cutting a tree using a helicopter and a tree cutter suspended from the helicopter. The tree cutter includes a frame which is selectively orientable about a horizontal axis of rotation by an elongate member extending perpendicular to the horizontal axis. A support line from the helicopter is mounted to the elongate member. The support line may be slid to a plurality of locations along the elongate member. Each of the plurality of locations corresponds to a unique orientation of the frame. A pair of gripping arms extend from the frame. A saw is pivotally mounted to the frame so as to cut a tree secured in the gripping arms. The method includes selectively orienting and suspending the cutting apparatus proximate to a tree to be cut, gripping the tree with the gripping arms and cutting the tree with the saw.

Abstract: The use of a harvester head, processor head or merchandiser to deploy or place probes into a standing tree, felled stem or trunk, log, cant or the like whereby a time of flight of a stress or acoustic wave can be measured for the purpose of comparing a relationship to a threshold for the purpose of attributing a characteristic to be harvested, processed or broken down tree, stem or trunk, log, cant or the like.

Abstract: An arrangement for controlling two drive units which interact with one another, one of which includes a hydraulically driven motor (2). The motor drives a varying load, and one or more valves (6, 7) control hydraulic fluid flow through the motor during operation and for starting and stopping of the motor. One of the valves is a flow control valve (7) for flow control of the hydraulic fluid flow through the motor. The second drive unit (37) performs a working movement which, under the action of hydraulic flow influences the loading of the motor. The flow of the hydraulic fluid to the second drive unit is controlled in a coordinated way with the control of the flow through the motor.

Abstract: One preferred embodiment of the present invention includes a cutting system with an hydraulically powered cutting member such as a cutting wheel or blade. The cutting member is arrangeable in a first configuration for substantially vertical cutting, and the cutting member is arrangeable in a second configuration for substantially horizontal cutting. One option includes a rotating joint allowing the cutting member to be arranged between the first configuration and the second configuration. In certain preferred embodiments, the cutting system is on a frame mountable in combination with a support vehicle, such as a skid steer loader.

Abstract: An attachment for front end loaders and for tree cutting devices attached to a front end loader provides a hydraulically extending serrated edge which may be positioned below the ground surface in front of the loader or the tree cutting device to remove small saplings and cut through roots around a tree. The attachment may also be retracted into an upright position out of the way of the front end loader, a front mounted accessory or a front mounted tree cutting device when using the accessory or tree cutting device and extended forward to push a material or a tree being cut in a direction in front of the accessory or tree cutting device and away from the front end loader.

Abstract: A ring saw includes a disc body having a circumferential edge with a first circumferential bearing groove. A cutting ring is mounted for rotation about the circumferential edge of the body. The cutting ring has an inner annular surface that carries both a circumferential gear profile and a second circumferential bearing groove. Ball bearings are positioned in side by side relation in a circumferential bearing race defined by the first circumferential bearing groove and the second circumferential bearing groove. A circumferential seal is provided between the body and the cutting ring, which is adapted to prevent abrasives from entering into the bearing race and interfering with ball bearings. At least one driving gear is carried by the body and engaged with the circumferential gear profile to impart rotational movement to the cutting ring.

Abstract: The invention provides a brush cutter and chipper that attaches to the end of an articulating arm or boom on equipment. The cutter may utilize existing hydraulic power and controls. The cutter includes a housing with external feed assembly that feeds material through a gate to an internal cutting assembly. The feed assembly has a tensioned upper roller that may move arcuately and a stationary lower roller. The rollers preferably rotate oppositely and each has peripheral cleats to facilitate feeding. The housing mounts an internal rotating drum that may be rotationally linked with the rollers. The drum has a cutting surface, which may be a peripherally wound toothed chain, that cuts entering materials smaller pieces. The drum rotates against the bottom side of the fed material to insure that the material is cut into small pieces. The small pieces exit through a chute at the bottom of the housing.

Abstract: An apparatus for removing obstructions caused by both high and low lying vegetation, the apparatus including a conventional industrial type vehicle, such as a tractor or backhoe loader, a swing frame swingably connected about a substantially vertical axis on the vehicle, an arm, such as backhoe boom, pivotally connected about a substantially horizontal axis on the swing frame, a telescoping boom connected with the arm, means of detachably connecting the telescoping boom with the arm and cutting means mounted about a first end of the telescoping boom. The apparatus is supported, powered and controlled using the standard attachments, power systems and controls of a conventional industrial-type vehicle.

Abstract: This invention relates to a digging or gripping tool with at least one cutting edge, wherein rollers are disposed along the outer edge of the cutting edge in accordance with the invention.

Abstract: A deforestation apparatus includes a tractor having a power source, a torque converter connected to said power source and driving a power take-off shaft, a cutting implement operably coupled to said power take-off shaft, wherein said torque converter amplifies torque to the power take-off when the cutting implement decreases in angular velocity relative to the power source.

Abstract: A saw attachment for pruning trees, shrubs and undergrowth that can be used on a hydraulic vehicle, having auxiliary line connections for accepting attachments. The attachment has cutting blades located at the ends of a swing arm, which is mounted on a plate capable of holding a single, fixed angle of orientation from 0° to 90° with respect to the imaginary plane of the direction of travel of the vehicle. Depending on the type of host vehicle on which the attachment is used, the attachment can be mounted using either a connector plate or an articulated extension arm.

Abstract: A log gripping attachment for a tree grinder includes a first thumb or jaw section pivotally mounted to the support frame of the grinder. There is a complementary second jaw section carried by the support frame and pivotally opposing the first jaw section. A drive mechanism selectively pivots the first jaw section open relative to the second jaw section such that a log may be received between the first and second jaw sections. The jaw driving mechanism may be alternately operated to pivot the first jaw section closed relative to the second jaw section. As a result, a log between the first and second jaw sections is gripped by the opposing jaw sections.

Abstract: An arrangement in connection with a crosscutting saw of a harvester. Herein, a lattice-like structure composed of strips is provided in a saw casing of the crosscutting saw, the structure being substantially on the same section plane as the rotational movement of a chain of the crosscutting saw. The strips are arranged in the saw casing in such a manner that substantially each movement path tangent generated at a lower edge in a guide bar of the chain or at an outer track on the side of the saw casing in the chain wheel is arranged to encounter a surface in the strip. This provides a structure that enhances a controlled removal of sawdust or other pieces flowing to the saw casing during sawing.

Abstract: A tree removal attachment is provided which can be easily affixed to construction equipment such as a small loader or skidster. The tree removal attachment has at least one moveable blade which is powered preferably by the hydraulic system of the loader for use in tree removal. The tree removal attachment replaces a bucket or other loader equipment and can be operated in relatively small, confined areas. The method of use prevents the necessity of backfilling a large hole as usually formed by bulldozers as they extract the roots attached to a tree trunk during removal from the ground. The tree removal attachment can be adapted to work on various heavy equipment such as skidsters, bobcats, track-hoes, excavators, back-hoes, bulldozers, tractors, truck loaders, forklifts, cranes and other heavy equipment.

Abstract: The present invention relates to a grapple (1) with cut-off saw (30) in which the motor (20) for driving the saw (30) is mounted inboard, and within the head portion (2) of the grapple. In a preferred embodiment drive from the motor (20) passes through a hollow pin (10) which also supports one of the jaws (4). The head portion (2) thereby acts as a housing for the motor (20) protecting it from impact.

Abstract: Tree processing equipment with two position pivot point for actuator ends includes a retention bracket, a processing head and at least one actuator. A bottom of the retention bracket is pivotally attached to the processing head. One end of the actuator is pivotally attached to the retention bracket and an actuation end is pivotally attached to the processing head. A first pivot hole and a second pivot hole are formed through the processing head or the retention bracket. A pivot pin is inserted through an actuator end and the first pivot hole for harvesting and processing in normal terrains. The pivot pin is inserted through one of the actuator ends and the second pivot hole for processing trees in mountainous terrains.

Abstract: A vehicle-mounted cutting tool is disclosed. The tool broadly includes a supporting member mounted to a vehicle, a pivotable member pivotally coupled with the supporting member, and a slidable member slidably coupled with the supporting member. Contact with an object, such as a tree, and motion of the vehicle causes the slidable member to slide. Sliding of the slidable member causes the pivotable member to pivot such that it crosses at least a portion of the slidable member to cut the object.

Abstract: An attachment for front end loaders and for tree cutting devices attached to a front end loader provides a hydraulically extending serrated edge which may be positioned below the ground surface in front of the loader or the tree cutting device to remove small saplings and cut through roots around a tree. The attachment may also be retracted into an upright position out of the way of the front end loader, a front mounted accessory or a front mounted tree cutting device when using the accessory or tree cutting device and extended forward to push a material or a tree being cut in a direction in front of the accessory or tree cutting device and away from the front end loader.

Abstract: The present invention is a vegetation cutting apparatus for connection to an all terrain vehicle. A frame attaches to the front grill of the all terrain vehicle. Specifically, a first frame member attaches to the front grill while a second frame member, which extends forward relative to the all terrain vehicle, attaches to the first frame member. A shear attaches to the forward end of the second frame member. A hydraulic system actuates the shear to perform the cutting of vegetation.

Abstract: A metal frame having at least one wheel attached in a way that permits the frame to be moved from one location to another. Attached to the frame is a chain saw that can be used in more than one cutting position using remote controls attached to the metal frame and controlled by the operator. The operator controls the saw's cutting position either vertically or horizontally with a tension rope that moves the saw to the desired cutting position. The saw's throttle is controlled by a flexible cable attached to a throttle assembly at the saw and a handle attached to the right side of the metal frame allowing the operator to control the cutting speed of the chain saw from high rpm to idle speed.

Abstract: A butt plate for a felling head includes a ramped portion in an accumulation pocket. The ramped portion is sloped downward generally toward a line extending in the direction of forward travel of the head. The butt plate allows for high accumulation of trees while retaining stable bunches.

Abstract: A stabilizing mechanism for the circular saw of a felling head is provided. The mechanism includes at least one gyroscopic stop disposed slightly above the saw on one of its sides in order to prevent the tilting of the saw in the opposite direction due to the gyroscopic effect when the saw is angled forward. Gyroscopic stops may be provided on each side of the saw and be combined with back stops extending over the rear extremity of the saw.

Abstract: An accumulator arm for a felling head has inner and outer arms which are hydraulically driven open and closed. The inner and outer sides of the outer arm are curved away from an accumulation pocket and toward a harvesting arm, wherein the accumulator arm can be pulled around a newly cut tree to add the tree to the accumulation pocket with a lesser amount of hydraulic force and with lesser damage to the trees.

Abstract: A tree cutting attachment for a skid steer loader. The attachment comprises a universal mounting plate by which the attachment quickly and simply is removably attachable to the loader. A circular saw blade is supported at the end of a non jointed arm that extends forwardly from the mounting plate. A hydraulically driven, direct drive motor is supported on the forward end of the arm above the blade and an overhung load adapter may be interposed between the motor and the blade. The blade is mounted for rotation on a vertical axis and preferably is a circular blade with a toothed edge. Leaving the cutting edge of the blade exposed about its entire periphery allows the blade to approach and cut upstanding trees from three sides. A brush guard, preferably of expanded metal, extends upwardly from the arm high enough to protect the operator of the loader.

Abstract: An apparatus for cutting wooden piles underwater and a method of use are disclosed. The apparatus has a frame and brace configured for engaging a pile. A pressure medium activated cutting device is connected to the frame and oriented at an angle such that a pile can be cut at a point below the bottom surface. The frame and brace are placed on opposite sides of the pile and connected to each other with a chain or cable. The apparatus has lines attached thereto and the other ends of the lines are attached to a boat or other flotation device. Using the disclosed apparatus to remove pilings causes significantly less turbidity than devices or methods currently available. Additionally, using the disclosed device also eliminates the need to decontaminate silt removed from the water using the currently available methods or devices.

Abstract: A transformer unit for sawing, wherein the transformer unit comprises: a first machine element for performing a continuous rotational motion, and a second machine element for performing a limited alternating rotational motion, wherein the transformer unit can be coupled to an arrangement supplying driving energy for the transformer unit, wherein the first and the second machine elements are coupled to a chain saw with a guide bar, wherein the first machine element is for rotating the chain saw, wherein the second machine element is for feeding the guide bar and for returning the guide bar to the starting point of the sawing after the sawing. The second machine element is a wing torsion device operated by pressurized medium, comprising an annular space for the pressurized medium.

Abstract: A tree cutting attachment for a skid loader or other types of self-propelled work vehicles to be used at construction and landscaping sites. The device is used to cut down brush and trees of up to about 12 inches in diameter. The tree cutting attachment is made up of a motor driven rotor assembly which is journaled within a frame of the attachment. The rotor assembly comprises a cage-like mounting system having pockets in which tempered steel blades, approximately ten inches in width are bolted in a side-by-side relation. Two rows of blades are mounted 180 degrees apart proximate the periphery of a rotor comprised of a series of parallel, generally circular plates that are welded to longitudinally extending rods. The knife blade elements are bolted to the blade holders with the non-sharpened end of the blade elements abutting a flat steel bar that forms part of the cage.

Abstract: A tree harvesting apparatus and method is particularly adapted for use in crowded housing and industrial areas where there is concern for relatively heavy cut tree portions causing damage when allowed to free fall to the ground. The tree harvesting apparatus and method enables a cut portion of a tree such as a tree top to be weighed after being cut but before it is lowered or allowed to free fall to the ground dependent on its weight. A camera mounted on the harvesting apparatus enables the cutting and weighing operation to be observed by an operator on the ground. The tree harvesting apparatus mounts on the outer end of a boom which in turn mounts on a turntable which can rotate 360°, thus making the apparatus and method useful for harvesting a plurality of trees from one location of the apparatus.

Abstract: An assembly for felling a segment of a tree trunk in a safe and controlled manner and method of using the same. The assembly comprises a vertical support structure having an elongated base portion, an elongated mast portion connected to the base portion or integrally formed therewith and having at least a portion extending upwardly therefrom, and a horizontal lip extending from the base or integrally formed therewith for contacting engagement with a conventional notch formed in the trunk. The method of felling a tree trunk comprises positioning the tree felling assembly along the trunk, cutting a conventional notch in the trunk below the assembly, the notch having a lower surface, repositioning the assembly along the trunk so that the lip is in contacting engagement with at least a portion of the lower surface, securing the assembly to the trunk below the segment, cutting the segment from the trunk, and lowering the segment from the trunk along a take-away cable operatively engaging the assembly.

Abstract: A feller buncher includes an elongate support having an axis, a first side, a second side, a first end and a second end. A first tree receiving cavity is positioned along the first side of the support. A second tree receiving cavity is positioned along the second side of the support. A circular saw is positioned at the second end of the support. The plane of the saw is transverse to the axis of the vertical support. Movable grapple arms are positioned on each of the first side and the second side of the support above the circular saw. The grapple arms are adapted to hold trees while they are being felled and then maintain bunches of felled trees in each of the first tree receiving cavity and the second tree receiving cavity.