Abstract: A pin for a coupler assembly for rotatably coupling a beam of a circle assembly of a grader machine with a bracket of a moldboard assembly of the grader machine includes a body defining a head portion and a shank portion. The shank portion integrally extends from the head portion. The head portion is adapted to be seated over one or more of the beam and the bracket. The shank portion is adapted to pass through the beam and the bracket to rotatably couple the beam and the bracket about the shank portion. A grease gallery is defined through the head portion, extending into the shank portion. The body defines multiple grease passages branching out from the grease gallery up to corresponding sections of an outer surface of the shank portion where the beam and the bracket are correspondingly adapted to lie in rotatable registration with the shank portion.

Abstract: A marine plough includes twin, complementary steering mechanisms, one or more soil-engaging fins, which are able to be steered, and a tow rope attachment mechanism that enables adjustment of the position of the tow rope retention point relative to the plough. This alters the position at which the line of a tow rope crosses the longitudinal axis of the plough, so that the plough can operate at offset tow positions. The tow rope attachment mechanism includes a bridle having two bridle limbs terminating at respective bridle limb retention points. The adjustment of the position of the tow rope retention point relative to the plough is done by moving the bridle rope retention points or adjusting the relative length of the bridle limbs. The bridle limb retention points can be moved, using cylinders, from towing positions to lifting positions at which the tow bridle can be used to lift plough in a substantially level attitude.

Abstract: A mounting system for securing planting units in planting machines, each unit including at least a portion removably secured to a carrier beam, the system allowing to quickly and simply change the distance between working units in order to adapt the machine to a better use thereof the beam having at least one slot extending along the beam and receiving a bolt connected to a curved plate bearing against a rear face of the beam, and to the beam, the bolt passing through the slot of the beam.

Abstract: A row cultivator 10 is drawn behind a prime mover illustrated by the wheels 11 with rows defined by mounds illustrated in terms of the lines 12 before the cultivator and the reshaped mounds being illustrated by the lines 13 located behind the cultivator. As can be seen the rows before the cultivator include an irregularity. In this case there are wide rows shown at 14 and relatively narrow rows shown at 15. The cultivator 10 includes a fixed rigid tool bar 16 and a moveable tool bar 17 travelling behind the fixed tool bar 16 and pivotable relative thereto via connecting bars 18, 19 and 20. Where the rows to be reshaped are all evenly spaced the connecting bars 18, 19 and 20 would be positioned parallel to the rows. The moveable tool bar 17 is displaced to the left.

Abstract: Integral hitch and standard mounting structure for a toolbar includes a first embodiment having a hitch tube connected to a three point hitch and to a rear toolbar. Brackets located a substantial distance outwardly of the hitch connect the hitch tube to the toolbar in parallel, rearwardly offset relationship to provide sufficient space between the tube and toolbar for lateral adjustment of tool brackets. Upright plate structure fixed relative to the front face of the toolbar has slotted extensions which project above and below the toolbar. Tool standard mounting bracket structure includes an upper L-shaped member having a horizontal leg positioned against the top of the toolbar and an upstanding bolt-receiving leg positioned against the upper slotted extension. A lower L-shaped member having a downturned bolt-receiving leg is fixed to the top of the tool standard and is positioned against the bottom of the toolbar and against the lower slotted extension.

Abstract: An apparatus for retaining a grader blade includes a support bracket, a first upper retainer secured to the support bracket and a second upper retainer secured to the support bracket. The apparatus also includes a first lower retainer secured to the support bracket, the first lower retainer being movable relative to the first upper retainer, and a second lower retainer secured to the support bracket, the second lower retainer being movable relative to the second upper retainer. The apparatus further includes a first adjustment member which contacts the first lower retainer, wherein rotation of the first adjustment member causes movement of the first lower retainer relative to the first upper retainer, and a second adjustment member which contacts the second lower retainer, wherein rotation of the second adjustment member causes movement of the second lower retainer relative to the second upper retainer. A method of retaining a grader blade relative to a support bracket is also disclosed.

Abstract: The invention concerns an apparatus which is both land and roadworthy and which is for use in land management. The apparatus comprises wheel or drum members on which it travels which members are provided with friction free or self-cleaning ridges which when travelling over land provide an impression of a kind which safeguards against soil erosion and improves land irrigation.

Abstract: A seed covering apparatus for covering seeds with soil after an agricultural seed planter places the seeds within an open seed trench and before the planter closes the seed trench. The apparatus includes a disk with a center guide hole and a sealed bearing attached within the guide hole. An adjustable mounting assembly fixes the sealed bearing to the planter so that the disk can rotate about the bearing along one side of the seed trench. The mounting assembly orients the disk at an acute angle to the seed trench so that rotation of the disk along the side of the trench transfers soil from the side into the bottom of the seed trench. The transferred soil completely covers the seeds within the trench prior to closure of the trench by the planter.

Abstract: An implement for general purpose broadcast or precision row crop cultivation comprising a central frame and two hingedly connected wings, or outer frames, all adapted for attachment of plow shanks at essentially any lateral position. The center frame includes cantilevered gauge wheel mounts extending beyond the hinge region so that gauge wheels for the center section are positioned in front of the side sections. Additional gauge wheels are carried by the wing sections at their ends opposite the center section. Hydraulic cylinders are provided for lifting the wing sections to an upright transporting position and latches are provided on the center section for holding the wing sections upright when the hydraulic cylinders are deactivated. Three point hitch members are provided on the front edge of the center section adapted for connection to standard tractor three point hitches with the cultivator spaced very closely to the rear of the tractor.

Abstract: The horizontal diagonal angle (z) of the rear frame (16) of an articulated plow (11) is greater than the horizontal diagonal angle (y) of the front frame (14), thus providing a lead angle (x) between the frames (14, 16). This construction reduces the overcut by the plow bottoms (17) that would otherwise occur due to the lateral flexing of the rear frame (16). The lead angle (x) can be adjusted between predetermined minimum and maximum values by moving an eccentric (51) between predetermined positions of pivotal adjustment. The eccentric (51) is part of a pivot joint (33) which together with a pivot joint (32) establishes the transverse pivot axis (31) between the articulated plow sections (12, 13).

Abstract: Structure for fastening the blade of a motor grader to a support carried on the vehicle while enabling sideward sliding movement of the blade includes support brackets each of which has a slot for receiving a slide rail that is secured along the back of the blade. To sustain wear and to facilitate compensating adjustments for such wear, a pair of replaceable wear strips are situated in each slot between the bracket and rail. The two wear strips are locked together by interleaved portions and each has an angled end portion abutting a separate side surface of the bracket. This construction locks the wear strips in place without requiring any additional fastening means to prevent wear strip movement out of the slots during sliding movement of the blade and rails. The pair of wear strips may have similar configurations enabling interchanging of the two strips after a period of time to distribute wear more evenly.

Abstract: An improved support for mounting the grader blade assembly of a motor grader on depending support arms of the motor grader circle. A bearing housing structure which is several times wider than the height of the blade assembly consists of a transverse hollow structural member with integral upright bearing housings at its ends which are substantially wider than and pivoted on the arms so the structure may be tilted. Forwardly open lower jaws in the bearing housings have planar top and rear surfaces and front lower webs which are generally complementary to surfaces of a lower support rail on the blade assembly; and forwardly open upper jaws provide upper and lower front webs and a planar rear surface which are generally complementary to surfaces of an upper support rail on the blade assembly. Working forces are transmitted from the rails through the jaws and bearing housings to the support arms; and vertical forces are transmitted almost exclusively through the lower jaw.

Abstract: Apparatus for maintaining an implement which is coupled to a tool bar in a controlled position behind a prime mover, having a pair of rock arm devices each including a rod coupled to the bottom lift arms of the tractor's three-point hitch, each of the rods being rotatably received by a sleeve upon which is mounted a normally upright plate. Positioned a distance above the sleeve on the plate is a second rod extending rearwardly and rotatably received by a second sleeve. The second sleeve is rigidly secured to the tool bar by a bracket device. A cylinder and piston having one end of the cylinder pivotally fastened to the tool bar and the piston pivotally fastened to the nearest plate, with a rod coupling both plates together. As the piston expands and contracts relative to the cylinder, the tops of the plates are displaced in the same direction.

Abstract: An improved support and bearing for mounting the grader blade assembly of a motor grader on the depending support arms of the motor grader circle. Upright bearing housings are mounted on the arms and positioned forward thereof. Each housing has a forwardly open upper jaw and a forwardly open jaw the interiors of which are lined with anti-friction wear strips, and the blade assembly support rails are slidable in the wear strips, the latter being retained by detachable side plates on the housings. One of the lower wear strips is adjustable to maintain a snug sliding fit between the lower rail and all the wear strips in the lower jaws. The wear strips for the upper jaws are mounted in carriers that are vertically movable in the jaws to accommodate lack of parallelism in the support rails.

Abstract: An improved blade clamping mechanism for a motor grader blade which has blade support rails carried in pivoted blade support means for lateral sliding movement, and in which confining surfaces in the blade support means restrict both vertical and fore-and-aft movement of the rails in the support means. A clamp lever is pivoted on the circle of the motor grader and has a clamp arm which can be turned in a vertical plane against the bottom of the lower support rail with a high mechanical advantage to force the rail against an overlying confining surface; and a single action hydraulic cylinder and piston unit which turns the lever simultaneously presses a clamp shoe against the rear of the upper support rail. The clamps are normally locked by hydraulic pressure on the piston, and released by moving a manually controlled valve to a drain position so that a return spring acting on the clamp shoe can move the shoe and the lever to a release position.

Abstract: A tying mechanism on a baler having a bale forming chamber incorporates an improvement for removing end play between the components of the tying mechanism. The tying mechanism includes an elongated drive shaft and a plurality of side-by-side units mounted along the shaft and operable to carry out tying of strands of material that band a bale being formed in the bale chamber. The tying units are movable axially along the shaft for adjusting them to predetermined operational positions relative to one another. The improvement relates to a pair of annular adjustment cams being mounted about and releasably secured to the shaft between the units.

Abstract: A cultivator or harrow has two groups of tined soil working members in a row that are driven to rotate about upwardly extending shafts. Each group is located on an opposite side of a frame portion center from the other. Between each soil working member, a driving shaft is positioned and pinion gears housed in the frame portion to turn all the shafts of one group in the same direction, but opposite to that of the driving shafts and the other group. The driving shafts can be fitted with additional soil working members and those soil working members on upwardly extending shafts can be replaced with smaller supports so that adjacent soil working members rotate in opposite directions. Alternatively, the smaller supports can be fitted with extension structures and two groups of soil working members are again formed. A dispensing mechanism can be mounted on the frame portion to deliver material between a rear supporting roller and the tines.

Abstract: A bracket is carried by the motor grader and has upper and lower slots formed therein to slidably receive an upper and a lower slide surface respectively of a slide rail arrangement which is secured to the back of the moldboard. A hydraulic jack is attached to the bracket and has an extendable and retractable rod which is operatively associated with a clamp device positioned for direct engagement with the upper slide surface for forcing the lower slide surface into rigid clamping engagement with the lower slot in the bracket upon extension of the rod.