Abstract: An agricultural implement including a central chassis member having a support structure with support arms connected to the support structure for movement between a working position and a transport position, the support arms having operating elements defining a working width between the operating elements and the main chassis member. The support arms are adjustable in the working position between a length corresponding to minimum working width and a length greater than the minimum working width. In the transport position a distance between the operating elements and the main chassis member is less than the minimum working width. A first stop defines the position of the minimum working width and a second stop arranged vertically with respect to the first stop retains the support arm in the transport position when the distance between the operating elements and the main chassis member is less than the minimum working width.

Abstract: An agricultural implement includes a first frame member and a second frame member pivotally connected to each other and an actuating assembly configured to rotate the second frame member. The actuating assembly includes a first link pivotally connected to the first frame member, a second link pivotally connected to the second frame member, and a third link attached to an actuator. Two of the first, second, and third links are pivotally connected by a connecting pin, which is received in a slot formed in the third one of the links. The actuating assembly is configured to prevent the pin from moving along the slot and to allow rotation of the second link relative to the third link, when the second frame member is arranged between a retracted position and an expanded position, and to allow the pin to move along the slot, when the second frame member is arranged in the expanded position.

Abstract: An agricultural implement has a hitch frame, a center frame pivotally attached rearward of the hitch frame about a hitch pivot axis. Wing frames are pivotally attached to ends of the center frame and a center actuator is pivots the center and wing frames from a rearward extending operating position to an upward extending transport position. Caster wheels are pivotally mounted on front sides of the wing frames about caster and transport axes. In the operating position, the caster axes are oriented vertically and the transport axes are oriented horizontally, and in the initial transport position, the caster axes are oriented horizontally, perpendicular to the hitch pivot, the transport axes are oriented vertically, and caster wheel actuators pivot the caster wheels 90 degrees about the transport axes to align the caster axes with the hitch pivot axis. The caster wheels support the wing frames in both operating and transport positions.

Abstract: A ground scraper (10) including: a bowl (12) for holding excavated ground material; a cutting edge (14) mounted at a mouth of the bowl (12) for excavating the ground material; an apron (26) pivotally mounted to the bowl (12) for closing the mouth of the bowl (12); and a hitch assembly (28) including a draft tube (32) and a pair of draft arms (34) extending from the draft tube (32) and pivotally coupled to the bowl (12). Each draft arm (34) including a first portion (36) angled with respect to a second portion (38).

Abstract: A method includes converting a single input flow into two output flows. The method further includes sequencing the output flows to completely raise a machine prior to folding of wings associated with the machine.

Abstract: A machine for the harvesting of plants comprises an arm movable between work and transport configuration, a tool comprising lateral ends and being able to occupy a work position and another position, a connecting device via which the tool is connected to the arm and enabling a first movement of the tool relative to the arm, during which the lateral ends move vertically relative to the arm in the same vertical direction relative thereto, the connecting device can operate a second transverse and horizontal movement of the tool relative to the arm and making it possible to operate this second movement independently of the first movement. The connecting device comprises an arm articulated on the support arm about a first transverse and horizontal axis when the support arm is in the work configuration, and this arm can, by pivoting about the first axis, moved vertically relative to the support arm.

Abstract: An agricultural implement with ground-engaging implements tracks in a direction down slope when pulled by a traction vehicle over uneven, or sloped, terrain. The implement's path from the track of the vehicle depends upon, among other things, the slope of the terrain. To compensate for this tendency to drift down slope away from the pulling vehicle's track, the implement frame is provide with controllable forward and aft pivoting wing sections to which the ground engaging implements are attached. Using a GPS receiver, precise positioning information is used to position the wing sections so that the ground engaging members are directed up slope to move the implement's track upwardly in correcting its track, with the wing sections then automatically re-positioned when the implements are on the proper track.

Abstract: The invention relates to a crane comprising a base for attaching the crane to a harvester or similar work machine, a main boom having two ends, one end pivoted to the base, an articulated boom having two ends, one end pivoted to the said main boom , an actuator cylinder for moving the main boom relative to the base having a cylinder part, a second actuator cylinder for moving the articulated boom relative to the main boom, a pressure cylinder in connection with one actuator cylinder, arranged to follow this actuator cylinder in order to produce pressure for the second actuator cylinder, wherein the pressure cylinder is arranged to form an essentially coaxial multi-chamber cylinder with the actuator cylinder to be followed.

Abstract: The article of manufacture is a kit that when installed upon a combine will enable the grain tank's folding auger to be raised and lowered by a push of a button in the cab. The kit contains a collar to encircle the auger tube, two universal joints, a linear actuator, and a mounting plate. To install the kit, one bolts the mounting plate to the bottom of the combine's grain tank. Next, the collar is bolted around the auger tube. Then, the installer mounts the linear actuator with a universal joint on each end between the collar and the mounting plate. The installer next installs the safety limiting switch and wires the system. Once all the wiring is completed, the installer returns to the combine's cabin and tests the system. The system contains a safety system that informs the operator of the combine when the auger is in operating or folded position.

Abstract: Latching apparatus and methods are disclosed herein. An example apparatus includes a first latch portion including a first tooth and a first pin disposed in a first aperture defined by the first tooth and a second latch portion including a second tooth and a second pin disposed in an second aperture defined by the second tooth. The second tooth of the second latch portion is to mesh with the first tooth of the first latch portion to substantially orient the first pin and the second pin along an axis. The example apparatus further includes an actuator adjacent a first end of one of the first latch portion or the second latch portion to move the first pin and the second pin along the axis to lock the first latch portion to the second latch portion.

Abstract: A method and apparatus for automating some of the tasks that heretofore required operator action at headland turns or similar events are provided. The present invention automates operation of lift assist wheels and/or gull wings, such as those found on a stack-fold implement, based on the position of the tractor hitch to which the implement is coupled. An operator may control the position of the implement, such as at a headland turn, by raising and lowering the tractor hitch using a remote control. The invention enables the planter to compare the tractor hitch position relative to an implement position and control operation of the implement accordingly without additional user inputs.

Abstract: A stack-fold implement having a central bulk fill hopper assembly is provided. The bulk fill hopper assembly is mounted to the center frame section of the stack-told implement and does not affect the narrowness of the stack-fold implement when it's in a stacked, transport position, The hopper assembly includes a pair of bulk fill hoppers or tanks supported by cradle that is in turn supported by a pair of wheels. The cradle is removably coupled to the center frame section by a plurality of rigid frame members.

Abstract: A folding implement frame having seven sections in a use position and nine sections when folded. The frame design allows a frame having a width of greater than 27 meters to be folded into a transport position having a width of less than eight meters and a height of less than six meters. The hydraulic system transfers weight to the center frame section during folding and unfolding to enhance stability. The hydraulic system uses accumulators to minimize the amount of oil reduction in the tractor reservoir resulting from extension of the hydraulic cylinders of the implement. Implement raise and lower cycle times are minimized by a helper cylinder to lift the frame main section when the entire implement weight is on the main section and allowing a smaller cylinder to lift the frame main section in the use position for shorter cycle times to raise and lower the implement.

Abstract: A stack-fold implement having a central bulk fill hopper assembly is provided. The bulk fill hopper assembly is mounted to the center frame section of the stack-fold implement and does not affect the narrowness of the stack-fold implement when it's in a stacked, transport position. The hopper assembly includes a pair of bulk fill hoppers or tanks supported by cradle that is in turn supported by a pair of wheels. The cradle is removably coupled to the center frame section by a plurality of rigid frame members. A retractable ladder may be stowed beneath the hopper assembly.

Abstract: A stack-fold implement having a central bulk fill hopper assembly is provided. The bulk fill hopper assembly is mounted to the center frame section of the stack-fold implement and does not affect the narrowness of the stack-fold implement when it's in a stacked, transport position. The hopper assembly includes a pair of bulk fill hoppers or tanks supported by cradle that is in turn supported by a pair of wheels. The cradle is removably coupled to the center frame section by a plurality of rigid frame members.

Abstract: A folding implement frame having seven sections in a use position and nine sections when folded. The frame design allows a frame having a width of greater than 27 meters to be folded into a transport position having a width of less than eight meters and a height of less than six meters. The hydraulic system transfers weight to the center frame section during folding and unfolding to enhance stability. The hydraulic system uses accumulators to minimize the amount of oil reduction in the tractor reservoir resulting from extension of the hydraulic cylinders of the implement. Implement raise and lower cycle times are minimized by a helper cylinder to lift the frame main section when the entire implement weight is on the main section and allowing a smaller cylinder to lift the frame main section in the use position for shorter cycle times to raise and lower the implement.

Abstract: A stack-fold implement having a central bulk fill hopper assembly is provided. The bulk fill hopper assembly is mounted to the center frame section of the stack-fold implement and does not affect the narrowness of the stack-fold implement when it's in a stacked, transport position. The hopper assembly includes a pair of bulk fill hoppers or tanks supported by cradle that is in turn supported by a pair of wheels. The cradle is removably coupled to the center frame section by a plurality of rigid frame members.

Abstract: A seeder including a chassis including a substantially horizontal transverse beam on which seeding elements are distributed in a regular manner, the transverse beam including a central section and two lateral sections arranged on either side of the central section in a work position, and being raised substantially above the central section in a transport position, each lateral section being connected to the chassis by a respective arm and being displaceable transversely and vertically with respect to the chassis by a deformable mechanism controlled by an operating jack. In the seeder one deformable mechanism is offset with respect to the other deformable mechanism, taking into account a direction of advance.

Abstract: A stack-fold implement having a central bulk fill hopper assembly is provided. The bulk fill hopper assembly is mounted to the center frame section of the stack-fold implement and does not affect the narrowness of the stack-fold implement when it's in a stacked, transport position. The hopper assembly includes a pair of bulk fill hoppers or tanks supported by cradle that is in turn supported by a pair of wheels. The cradle is removably coupled to the center frame section by a plurality of rigid frame members.

Abstract: A folding implement frame having seven sections in a use position and nine sections when folded. The frame design allows a frame having a width of greater than 27 meters to be folded into a transport position having a width of less than eight meters and a height of less than six meters. The hydraulic system transfers weight to the center frame section during folding and unfolding to enhance stability. The hydraulic system uses accumulators to minimize the amount of oil reduction in the tractor reservoir resulting from extension of the hydraulic cylinders of the implement. Implement raise and lower cycle times are minimized by a helper cylinder to lift the frame main section when the entire implement weight is on the main section and allowing a smaller cylinder to lift the frame main section in the use position for shorter cycle times to raise and lower the implement.

Abstract: A hinge assembly with two pivot axes is provided for a folding frame. One pivot axis, a working pivot axis, allows the outer wing frame to rotate while in operation to follow the ground contours by rotating relative to the adjacent frame section without creating any interference between adjacent tools mounted to the frame sections. The second pivot axis is a folding pivot axis above the frame and about which the outer wing frame rotates to fold the outer wing into the transport position. This hinge assembly when used on a five section implement frame allows the outer wing frame to both follow the ground contour and to fold into an acceptable transport position.

Abstract: A stack-fold implement having a central bulk fill hopper assembly is provided. The bulk fill hopper assembly is mounted to the center frame section of the stack-fold implement and does not affect the narrowness of the stack-fold implement when it's in a stacked, transport position. The hopper assembly includes a pair of bulk fill hoppers or tanks supported by cradle that is in turn supported by a pair of wheels. The cradle is removably coupled to the center frame section by a plurality of rigid frame members. A retractable ladder may be stowed beneath the hopper assembly.

Abstract: A hydraulic control apparatus for a foldable farm implement has a first hydraulic control system is used to control weight transfer to a plurality of ground engaging tools mounted to stationary and wing frame sections of the farm implement. A second hydraulic system is used to fold and unfold the wing sections for placing the implement in a compact position for transport and storage. A hydraulic control is provided that interfaces with both hydraulic systems to control sequencing of the functions provided by the first and second hydraulic systems.

Abstract: A foldable implement frame is foldable about multiple axes to provide a compactly folded implement. The implement is foldable from a wide, field working position to a relatively narrow position for transport between fields, along roadways, and through field gates or storage doors. The frame is generally comprised of a center frame section that may be hitched to a prime mover, a pair of inner frame sections, and a pair of outer frame sections. The outer frame sections may be folded about their connections to the inner frame sections, and the inner frame sections are foldable about their connections to the central frame section. The central frame section may be rotated to rotate the inner and outer frame sections forward to an upright position, and the inner and outer frame sections may then be folded forward to fold the frame into a narrow position for transport and/or storage.

Abstract: An agricultural implement arrangement is disclosed that may provide wheel assemblies that are stored in front of wing assemblies and row units mounted thereon. The arrangement may include actuators to extend the wheel assemblies in order to lift the row units off the ground to move to a transport position. When in a fully-folded position, the wing wheel assemblies may interleave. The arrangement may also shift the weight of the wing assemblies while in transport position to the hitch of the tractor and center the rearward weight over the central wheel assembly.

Abstract: A ground engaging work vehicle including a frame, a plurality of tractive elements, a movable extension, a hydraulic fluid using attachment, a hydraulic fluid pump and an accumulator. The plurality of tractive elements are coupled to the frame. The tractive elements engage the ground. The movable extension is connected to the frame. The hydraulic fluid using attachment is coupled to the movable extension. The hydraulic fluid pump is selectively fluidly coupled to the attachment. The accumulator is selectively fluidly coupled to the attachment dependent upon at least one fluid flow requirement of the attachment.

Abstract: A telescoping adjustable length trailer hitch with an hydraulic actuator for adjusting the length of the trailer hitch. The hitch being adjustable to provide for a longer hitch for road travel and for a shorter hitch for use in farm fields what used with a chemical applicator. The adjustable length hitch having an outside roller on the top of the tube which telescopes into the main tube and a roller on the bottom of the outside roller for rolling on the inside of the main tube to prevent binding as one tube moves inside the other. The telescoping tubes having a hinged safety link connecting the telescoping tubes so that they will not separate. The distal end of the trailer hitch having a bracket for adjusting the height of the trailer hitch relative the towing vehicle and a safety chain for ensuring trailer and towing vehicle will not become separated.

Abstract: An agricultural implement arrangement is disclosed that may provide wheel assemblies that are stored in front of wing assemblies and row units mounted thereon. The arrangement may include actuators to extend the wheel assemblies in order to lift the row units off the ground to move to a transport position. When in a fully-folded position, the wing wheel assemblies may interleave. The arrangement may also shift the weight of the wing assemblies while in transport position to the hitch of the tractor and center the rearward weight over the central wheel assembly.

Abstract: An agricultural implement includes first and second outer harrows positioned adjacent front and left sides and front and right sides of a frame, respectively, at generally opposite diagonal directions. Third and fourth harrows are similarly positioned adjacent rear and left sides and rear and right sides of the frame, respectively, at generally opposite diagonal directions. The implement may include inner harrows positioned to close gaps left by the outer harrows and positioned at generally opposite diagonal configurations. Each harrow includes a plurality of discs and a chain with a plurality of links. Each outer harrow chain is held in relative tension by a spring interconnecting a respective chain end and the frame. Left and right sides of the frame are foldable upwardly and inwardly for transport and storage.

Abstract: An agricultural implement includes a hitch boom to which a pair of wing booms is pivotably connected. The wing booms are designed to fold forward from an extended position to a transport position. The wing booms are supported above a surface by wheels that provide the aforementioned support when the wing booms are in an extended position as well as the transport position. Maintaining surface contact of the wheels in both positions reduces the load placed on the hitch to which the hitch boom is coupled as well as the hitch boom itself. Multi-link draft links are connected between the hitch boom and the wing booms to provide support for the wing booms when the wing booms are in the extended position. The relative length of the draft links dictates how far the hitch telescopes when the wing booms are folded to the stowed or transport position.

Abstract: An apparatus includes a tongue, a pivotable beam linked to the tongue, a cylinder configured to move the pivotable beam from an operating position to a transport position, which is narrower than the operating position, and a latchable member connected to the pivotable beam. A locking assembly includes first and second dogs which can receive the latchable member. The second dog can move relative to the first dog from an open position to a closed position in response to movement of the latchable member such that movement of the latchable member out of the second dog opening is blocked by the first dog while the second dog is in the closed position. The apparatus includes a locking member that moves in response to movement of the cylinder from an unlocked to a locked position to lock the dogs in the closed position.

Abstract: A tension member arrangement is disclosed that can be mounted between a central portion of an agricultural implement and a wing. The wing is configured to be raised and lowered by an actuator. The tension member is mounted to support structures on the central portion of the implement and on the wing once the wing is raised, to maintain the wing in the raised position. Stress may then be relieved from the actuator without the wing descending from the raised position. The tension member may be completely removed from the implement or may remain attached and employed only when needed to maintain the wing in the raised position.

Abstract: A boom breakaway assembly for a spray boom used by a vehicle. The boom breakaway assembly includes a reciprocating system having a first position and a second position, a retention system, and a bias system. In the first position, the bias system applies a maximum effective bias rate to the reciprocating system and the retention system applies a holding force upon the spray boom to maintain the spray boom in a desired outward position. In the second position, the bias system applies a minimal effective bias rate to the reciprocating system and the retention system reduces or disengages the holding force upon the spray boom, thereby allowing the spray boom to move from the outward position to a breakaway position when the spray boom encounters an obstacle. The bias system returns the reciprocating system to the first position once the spray boom clears the obstacle.

Abstract: An agricultural implement, such as a planter, having a telescoping tongue for placing the implement in either a transport or field use configuration, includes an hydraulic pump located on the planter frame, preferably toward the rear, for powering the planting functions. A mechanical drive line from the PTO of the tractor to the remote hydraulic pump is disengaged as the planter frame begins to move from the planting position. The drive line permits the tractor to make full 90° turns in the field.

Abstract: The forward folding tool bar for grain planters includes a main frame. Left and right pivot frames are pivotally attached to the main frame for pivotal movement about vertical axes. Wing assemblies are pivotally connected to the pivot frames for pivotal movement about horizontal fore and aft axes. A tongue assembly includes a rear tube fixed to the main frame. A forward tube is telescopically received in the rear tube. A mast is fixed to the forward end of the forward tube. A pantographic linkage includes draft links pivotally attached to the mast and a hitch member. A hydraulic cylinder raises and lowers the mast. The draft links include slots that receive bar portions attached to the rear tube, in a lowered working position. Telescopic tension connector links attached to the mast and the wings prevent pivotal movement of the pivot frames when telescopic movement is blocked.

Abstract: A seed tank arrangement is provided with improved access to seed tanks of an agricultural planter and the contents thereof, while simplifying the manufacturing of such tanks. The seed tank has a fill opening formed in the upper surface of the tank for loading and accessing seeds in the interior of the tank. Features of the tank are mirror images about a diagonal plane of the tank, which enables the same tank to be used for both the left and right sides of the planter. This is achieved by rotating the left tank 90 degrees with respect to the right tank. The design provides improved access to the interior of the tanks for filling and servicing the seed.

Abstract: A folding marker for connection to an agricultural implement toolbar with a marker shoulder pivot, an inner arm and a double acting hydraulic cylinder both pivotally connected to the shoulder pivot. A middle arm bracket is pivotally connected to the inner arm and the cylinder. A middle arm is connected to the middle arm bracket, with two beams extending from the bracket and terminating at an outer arm pivot, with a third beam connected between the bracket and a crossbrace. An outer arm pivot bracket is pivotally connected to the outer arm pivot, an outer arm connected thereto and having two legs connected between the outer arm pivot bracket and a plate assembly. The legs define a channel therebetween, and an adjustable arm is slidably connected within the channel. An extension element is insertable within the channel and lockable with the plate assembly, with a marking element connected thereto.

Abstract: A system for distributing seeds is configured to be transported by an agricultural vehicle along a direction of travel. The system includes a main frame extending along the direction of travel, a first wing frame extending from a first side of the main frame in a first direction that is substantially perpendicular to the direction of travel, and a second wing frame extending from a second side of the main frame in a second direction that is substantially perpendicular to the direction of travel. The system further includes at least one row unit arranged on the first side of the main frame and supported by the first wing frame, at least one row unit arranged on the second side of the main frame and supported by the second wing frame, a first seed reservoir arranged on the first side of the main frame, and a second seed reservoir arranged on the second side of the main frame.

Abstract: A forwardly folding tool bar which may be moved between field and transport positions. The tool bar includes a center tool bar section having a hinged telescopic tongue extending forwardly therefrom for connection to a tractor. Right and left wrap-around winglet tool bar sections are pivotally secured to the right and left ends of the center tool bar section and are pivotally movable between field and transport positions. Right and left wing hinges are also pivotally secured to the center tool bar section. Right and left intermediate hinge sections are pivotally secured to the outer ends of the right and left hinge sections, respectively. Right and left outer hinge sections are pivotally secured to the outer ends of the right and left intermediate hinge sections. Inner, intermediate and outer tool bar sections are secured to each of the inner, intermediate and outer hinge sections.

Abstract: The forward folding tool bar for grain planters includes a main frame. Left and right pivot frames are pivotally attached to the main frame for pivotal movement about vertical axes. Wing assemblies are pivotally connected to the pivot frames for pivotal movement about horizontal fore and aft axes. A tongue assembly includes a rear tube fixed to the main frame. A forward tube is telescopically received in the rear tube. A mast is fixed to the forward end of the forward tube. A panographic linkage includes draft links pivotally attached to the mast and a hitch member. A hydraulic cylinder raises and lowers the mast. The draft links include slots that receive bar portions attached to the rear tube, in a lowered working position. Telescopic tension connector links attached to the mast and the wings prevent pivotal movement of the pivot frames when telescopic movement is blocked.

Abstract: A transport lock joint is provided for an implement with a center section and wing sections adapted for stack folding to transport positions over the center section. The lock joint includes an insert element mounted on one of the wing sections and a retainer element mounted on the other wing section. With the implement in its stack-folded transport position, the insert element is received within the retainer element and the wing sections are mutually restrained against relative movement, particularly relative movement associated with the over-the-road travel. Unfolding the implement to a field working position disengages the lock joint by extracting the insert element from the retainer element.

Abstract: An agricultural implement apparatus comprises a center section, inner foldable wings, outer foldable wings, and foldable wing extensions oriented substantially horizontally when in the field position. When in the transport position, the center section is horizontal, the inner wings extend vertically from ends of the center section, the outer wings extend downward and inward from upper ends of the inner wings such that lower ends of the outer wings are adjacent to each other, and the wing extensions extend downward and outward from the lower ends of the outer wings toward corresponding ends of the center section. A wing locking and folding apparatus includes an over-centering locking mechanism, and maintains an implement wing extension in alignment with an implement wing when in a field position, and folds the wing extension upward to a transport position.

Abstract: A lift system includes parallel connected cylinder circuits with cylinders mechanically tied together on a first lift wheel arm. The base end of a third cylinder connected to a second lift wheel arm is connected in parallel with the pair of cylinders. The rod end of the third cylinder is constrained for movement with the rod end of a fourth cylinder also connected to the second wheel arm. The rod end of one of the pair of cylinders is connected in series with the base end of the fourth cylinder to thereby constrain the third and fourth cylinders on the second lift wheel arm to move in unison with the pair of cylinders on the first lift wheel arm. Series cylinder circuits move the wing cylinders in unison with the main frame cylinders to keep the implement level. The hydraulic circuit is also plumbed to retract outer wing wheels during wing fold operations to eliminate outer wing wheel interference.

Abstract: A transport lock joint is provided for an implement with a center section and wing sections adapted for stack folding to transport positions over the center section. The lock joint includes an insert element mounted on one of the wing sections and a retainer element mounted on the other wing section. With the implement in its stack-folded transport position, the insert element is received within the retainer element and the wing sections are mutually restrained against relative movement, particularly relative movement associated with the over-the-road travel. Unfolding the implement to a field working position disengages the lock joint by extracting the insert element from the retainer element.

Abstract: An assembly for locking a suspension arrangement operatively connected between a boom assembly and a carrying frame that are supported on a boom support implement or vehicle is provided. The implement or vehicle also includes a lift linkage operable to move the carrying frame and connected boom assembly between a lowered, operative position and a raised, inoperative position. The lock assembly includes a lock pin and a bracket assembly. The lock pin is mounted at the lift linkage. The bracket assembly includes a first bracket and a second bracket. The first bracket is mounted at the boom assembly and the second bracket is mounted at the carrying frame. In the raised, inoperative position of the boom assembly, the first and second brackets are configured to receive the lock pin in a locked position to restrain the boom assembly from swinging or rotating with respect to the lift linkage.

Abstract: A flexible rockshaft includes joint structure facilitating the adjustment of the rotational angle of rockshaft segments relative to each other. A link inserted between a rockshaft segment and the rockshaft flex member rotates on the same or a parallel pivot as adjacent rockshaft segment, and an adjustable length connecting mechanism on the link provides angular adjustment. In one embodiment, shims supported on the link are selectively clamped between a threaded stop and an internally threaded link. The number of shims may be easily varied to change the angular position of one rockshaft segment relative to the adjacent segment. In another embodiment, a simpler threaded member with positioning nuts is located on the additional link and provides inexpensive angular adjustability.

Abstract: The transversely extending frame of a machine has a number of hingedly interconnected frame sections that may be raised and lowered by lift cylinders to convert the machine between a wide-spread working position and a folded-up transport position. Two lift cylinders for raising and lowering inner wing frame sections relative to the central main frame section are anchored at their inner ends to a hydraulically operated holding cylinder that effectively adjusts the positions of the anchor points of the lift cylinder in a lateral sense. Thus, when the holding cylinder is fully contracted, the inner wing frame sections may be lowered by their lift cylinders until the lift cylinders are fully extended, but the outer ends of the inner wing frame sections remain tilted upwardly to a certain extent. Thus, outer wing frame sections connected to the outer ends of the inner wing frame sections also remain slightly lifted off the ground until fully unfolded from the inner wing frame sections.

Abstract: A seeding machine comprising a transversely extending main frame and left and right transversely extending wing frames. The main frame and the wing frames are provided with a plurality of planting units. Left and right main seed hoppers are mounted to the main frame. The left and right main seed hoppers are transversely separated from one another by a longitudinally extending gap located along the longitudinal centerline of the seeding machine. A pneumatic seed on demand delivery system automatically directs seed from the left and right main seed hoppers to the planting units. A walkway is positioned in the gap between the left and right main seed hoppers to facilitate operator access to the lids of the main seed hoppers.

Abstract: A foldable implement frame and hitch having a front end for attachment to a draft vehicle having dedicated transport wheels movable between a stored position wherein the transport wheels are out of contact with the ground and a transport position wherein the dedicated transport wheels engage the ground and support the implement frame. The dedicated transport wheels are longitudinally movable along one of the telescoping main frame members toward and away from the draft vehicle to change the center of gravity of said foldable implement frame. Additional pivots in the wings provide greater contouring following capabilities.

Abstract: A multiple section, front-folding implement has gauge wheel assemblies located on the front side of laterally extending beams of the sections during field operations. As the wing sections are folded forwardly to prepare the machine for transport, the gauge wheel assemblies are simultaneously swung around to the ends of the beams into outboard positions so that they extend generally forwardly from the beams when the beams are fully folded. Thus, instead of taking up space between the folded beams, the gauge wheel assemblies are moved into clearance positions that enable the wing sections to be folded more closely together, reducing the overall roading width of the machine when folded.