Abstract: A system for monitoring the operational status of shear pins for ground-engaging assemblies of agricultural implements includes a ground-engaging assembly including an attachment structure pivotably coupling the ground-engaging assembly to a frame of an agricultural implement, a ground-engaging tool pivotably coupled to the attachment structure at a pivot joint, and a shear pin at least partially extending through the attachment structure and the ground-engaging tool to prevent pivoting of the ground-engaging tool about the pivot joint. The system also includes an orientation sensor configured to generate data indicative of an orientation of the attachment structure, and a computing system communicatively coupled to the orientation sensor. The computing system is configured to monitor the orientation of the attachment structure and determine a change in an operational status of the shear pin based on detected changes in the monitored orientation of the attachment structure.

Abstract: A knife for creating berms in agricultural fields for strip -till farming includes wings on opposing sides of the knife edge that are configured to fracture and raise soil in a wider path for building a berm behind the knife. The wings can be swept back, angled downward from front to back, and angled downward from inside to outside, for better loosening compacted soil below the surface and creating improved berms rearward of the knife. The knife edge can be replaceable by removal of a single pin. If a difficult object is encountered, such as large rocks or tree roots, the knife can swing reward with respect to a supporting shank to minimize damage to the knife. Upon swinging reward, an agricultural product delivery tube rearward of the knife for depositing agricultural product into the berm can swing forward to minimize crimping of the delivery tube.

Abstract: The present invention relates to an annular barrier for providing zonal isolation in an annulus in a well downhole between a well tubular metal structure and another well tubular metal structure or a wall of a borehole, comprising a tubular metal part configured to be mounted as part of the well tubular metal structure, an expandable metal sleeve connected with and surrounding the tubular metal part forming an annular space there between, the expandable metal sleeve is configured to be expanded in the well downhole from a first outer diameter to a second outer diameter to abut against the well tubular metal structure or the wall of the borehole, and an expansion opening in the tubular metal part wherein the annular barrier further comprises a valve system comprising an isolation valve having a first position and a second, comprising an isolation bore, an isolation piston arranged in the isolation bore dividing the bore into a first bore part and a second bore part in the first position, the isolation piston i

Abstract: An agricultural implement has a marker assembly that is pivotable in a generally rearward direction when the marker assembly collides with a relatively massive field obstruction. The interconnection of the marker assembly to a central frame of the implement allows the aforementioned pivoting to reduce damage to the central frame and/or the marker assembly during such collisions.

Abstract: An agricultural implement has a marker assembly that is pivotable in a generally rearward direction when the marker assembly collides with a relatively massive field obstruction. The interconnection of the marker assembly to a central frame of the implement allows the aforementioned pivoting to reduce damage to the central frame and/or the marker assembly during such collisions.

Abstract: A mechanical overload member apparatus for use with a planter apparatus including a coulter bar and coulter/fertilizer units mounted thereto, the coulter bar pivotally mounted to the underside of a wheel supported carrier frame designed for transport in a transport direction where a hydraulic cylinder is linked between the frame and the bar for moving the bar between a ground clearing transport position and a ground engaging position where the frame, cylinder and frame form a linkage path, the overload member linked within the linkage path such that a draft force applied to the bar in a direction opposite the transport direction causes a secondary force on the member and, when the secondary force exceeds a threshold force, the overload member failing and thereby rendering the linkage path non-rigid.

Abstract: The present invention relates to a seed drill comprising at least one metering device driven by a mechanism equipped with an input shaft, with a pinion and with a control handle. The seed drill is notable in that the control handle is connected in terms of rotation to the input shaft. The present invention makes it easier to check the operation of the metering device.

Abstract: A field marker for mounting on an agricultural implement includes an elongated arm adapted to project outwardly laterally of the implement when in its operating position and is adapted to carry a field marking device at its outer distal end for making a score mark on the ground. A mount for the arm at an inner proximal end thereof allows pivoting of the arm about first and second transverse axes whereby to allow the arm to swing upwardly and downwardly about the first one of the axes when operating on uneven ground while also allowing the arm to swing around the second of the axes from its outwardly projecting operating position into another position. The arm includes inner and outer arm sections secured together by a folding joint to permit the inner and outer arm sections to be folded into juxtaposition with one another and brought into the transport position.

Abstract: A breakaway system which is easily reset by a user and does not utilize shear pins or spring loaded tension devices. The inventive device includes a support member having a U-shaped cross-sectional area, an inner member attached to the support member, an outer member pivotally attached to the support member opposite of the inner member, a lip portion attached to the outer member which projects through an opening with the support member, and a spring leveraged arm pivotally attached to the inner member containing a roller opposite thereof which engages a swaged face of the lip portion. The lip portion preferably has a ramped face opposite of the swaged face which allows the lip portion to be reset behind the roller of the arm without requiring the replacement of any components.

Abstract: A field marker for attachment to a farm implement to form a groove in the ground for guiding a farmer as the implement is towed or driven across a field includes an inner wing section pivotally connected to a lateral end of the implement and an outer arm section pivotally connected to the distal end of the wing section. The wing section may be pivoted hydraulically from a working position extending outwardly from the implement to a stowage position parallel to the implement. The arm section may be pivoted hydraulically generally vertically relative to the wing section through an angle of about 190.degree. between its stowage position and its working position. The arm section is provided with a spring-loaded breakaway mechanism that permits an outer arm portion of the arm section to pivot rearwardly of an inner arm portion of the arm section should the arm section encounter an immovable obstruction. The breakaway mechanism can be easily and quickly reset after activation without having to replace any parts.

Abstract: A row cultivator (10) includes a row following system (12) coupled to a toolbar (13) employing frame members (17) and (18) constrained to remain parallel by a cross member (21). Coulter wheels (30) and (31) secured to the frame members (17) and (18) are non-steerable and tool bar drift may be corrected. A tool (40) employs a leading blade (44) and a pair of diverging cutting blades (47) and (48) trailing behind the leading blade (44). A sheer release assembly employs a longitudinally extending bolt (70) centrally disposed and holding a shank (61) to a tool bar (65) so that when a tool on the shank (61) strikes an underground obstacle the bolt (70) is sheared longitudinally.

Abstract: A deep subsoiler (50) consists of a plurality of carriages (58) abreast on a frame (52) and a plurality of shanks (60) mounted on each of said carriages. The mounting for each of said shanks provides a fail-safe mechanism consisting of a pair of rosettes (72) with shear-bolts (86). Said rosettes enable the operator to minutely set an angle of attack for each shank tip (P37). Said carriages align parallel with a direction of travel. Each shank on the carriage functions at an increasing depth which provides a staged sequence with a shortest shank (60c) in a forward position. Theory and tests indicate a draft reduction using staged shanks. Said tips for these shanks produce larger voids in the subsoil and increase the flow of subsoil to the surface. Staged shank standards (P40) cut narrower grooves in the surface that inhibit rivulets. The larger voids hold more water and organic material and this material adheres better to the surface.

Abstract: A row cultivator (10) includes a row following system (12) coupled to a toolbar (13) employing frame members (17) and (18) constrained to remain parallel by a cross member (21). Coulter wheels (30) and (31) secured to the frame members (17) and (18) are non-steerable and tool bar drift may be corrected. A tool (40) employs a leading blade (44) and a pair of diverging cutting blades (47) and (48) trailing behind the leading blade (44). A sheer release assembly employs a longitudinally extending bolt (70) centrally disposed and holding a shank (61) to a tool bar (65) so that when a tool on the shank (61) strikes an underground obstacle the bolt (70) is sheared longitudinally.

Abstract: A trenching apparatus for attachment to a three-point hitch on a tractor includes a bucket pivotally mounted on the lower end of a mounting post. The mounting post is held in position by a pair of spaced apart generally horizontal beams connected to a frame to define a parallelogram. The frame is connected to the three-point hitch in conventional fashion. The mounting post and support beams are configured to extend rearwardly of the mounting frame between two parallel planes extending along the sides of the excavation bucket toward the mounting frame and vertically thereof.

Abstract: The invention relates to a grubber tine of a tubular cross-section which, as compared to known grubber tines, give reduced weight and larger flexure and vibrations when moved through the soil, which gives reduced tractive power. The grubber tine is adapted to escape obstacles within the soil in that the grubber tine is pivotally suspended on a shaft. Bosses are attached to the grubber tine through friction forces between the bosses and the grubber tine at a preferably conical contact face, achieved in that the bosses are pressed into holes in the wall of the grubber tine. In the working position, the grubber tine rests against a shaft and is kept in place by means of a safety bolt adapted to be stretched off upon the occurrence of overload. The safety bolt may be combined with a resilient member, such that the grubber tine to a certain degree may yield upon load and then return to working position.

Abstract: An agricultural plow implement includes a number of upright supports, with each support supporting a shallow tillage V-shaped sweep blade. A mounting plate is attached to the rear of each upright support and a specially adapted ripper shank, with an attached deep penetrating ripper blade, is attachable to each plate via a pair of bolts which extend through respective mounting bores in the plate. One of the bolts in each pair is a pivot bolt which provides a pivot point about which the ripper shank can swing. The other bolt is a shear pin which is designed to shear off should the ripper blade encounter an obstruction which might otherwise bend or break the ripper blade and/or the ripper shank. The ripper shank is adjustable vertically relative to the sweep blade and the ripper shank can also be pivoted 180 degrees between operative and non-operative positions when it is desired to do a sweep operation without soil ripping.

Abstract: A soil penetrating tool assembly for mounting to a tool bar of a soil penetrating implement including a shank member which has an elongate body, a soil penetrating tool which is located on the first end of the body and a facing plate located on a second end of the body. The facing plate engages one side of the tool bar, and has a first end and a second end which has an opening. A clamping plate engages the other side of the tool bar, and has a first end and a forked second end which has two prongs each having openings including two sections, generally oblong in cross-section, offset from one another with different centerlines. The facing plate first end and clamping plate first end include facing flanges each having a through hole and a bolt secures the flanges together with a clearance therebetween.

Abstract: In a plow, particularly a reversible plow, one has aimed at a plow enabling plowing in hard soil affording very heavy resistance against the plow bodies (2), using comparatively small material dimensions and corresponding light weight of the plow. For this purpose, the plow beam (3), at the front end thereof, is pivotally mounted on the plow frame (1) and, somewhat spaced behind the pivot (4), a rotation restricting shear pin (5) is secured to the plow frame (1). The plow beam (3) is coupled to a lever (6) which, spaced from its connection point (7) to the plow beam (3), possibly via a longitudinally adjustable stop member (10), is resting supportingly on an adjacent plow beam portion. The lever (6) is, spaced from its said connection point (7) as well as from said supportingly resting portion/stop member (10), linked to an elastic compliant, resilient damper (11). Additionally, said damper (11) is connected to the plow frame (1) or to an element connected thereto.

Abstract: A reversible plow comprising a three point hitch, a pivotally mounted tool bar provided with a plurality of adjustable plow gangs, and gauge wheels wherein said tool bar can be shifted from left of center to right of center, and back, by a hydraulic piston such that the plowed ground can be directed in a desired direction.

Abstract: A reversible plow comprising a three point hitch, a pivotally mounted tool bar provided with a plurality of adjustable plow gangs, and gauge wheels wherein said tool bar can be shifted from left of center to right of center, and back, by a hydraulic piston such that the plowed ground can be directed in a desired direction.

Abstract: A shank attachment device for holding either a deep-tilling ripper shank or a leveling finishing tool includes two vertical plates fixedly attached to a tool bar and adapted to sandwich a ground-working tool therebetween. A ripper shank holding assembly includes a first transverse bar fixedly attached to each of the plates, a detachable taper pin and detachable shear bolt.A ripper shank has a notch adapted to receive the transverse bar and the taper pin and shear bolt abut a rear surface of the ripper shank when the ripper shank is mounted between the two vertical plates. A finishing tool holding assembly includes a second transverse bar fixedly attached to each of the plates and a second detachable shear bolt. A finishing tool has a notch adapted to receive the second transverse bar with the second shear bolt extending through an aperture in the finishing tool when the finishing tool is mounted between the two vertical plates.

Abstract: A reversible plow comprising a three point hitch, a pivotally mounted tool bar provided with a plurality of adjustable plow gangs, and gauge wheels wherein said tool bar can be shifted from left of center to right of center, and back, by a hydraulic piston such that the plowed ground can be directed in a desired direction. The hitch includes a hydraulic piston and cylinder assembly for shifting the plow frame and tool bar about a central longitudinal axis with respect to the tractor, thereby maintaining the plow in a horizontal position even though one rear wheel of the tractor is in the plowed furrow.

Abstract: A plow having a forwardly facing V-notched digger blade, lifting wings, side arms, frame members, ears for attaching a hitch and breakable attachment of the hitch to the tow vehicle is provided. In use the plow cuts or digs out subterranean plant roots, and lifts soil for aeration.

Abstract: An improved breakaway assembly for preventing damage to markers for agricultural equipment when such markers encounter obstacles during use. The improved breakaway assembly includes an elongated member for holding the marker in place, imparting only tension forces onto such elongated member and minimizing the amount of shearing forces typically encountered by prior art shear pins. The elongated member is generally positioned tangentially to an arc formed by rotation of the point of attachment of such elongated member about the vertical axis on which the marker pivots when an obstruction is encountered.

Abstract: An agricultural tool assembly (21) disclosed is usable on a variety of implements in place of shovels, blades, tines or sweeps and on novel cultivating or crop root undercutting implements and the like. Assembly (21) includes a rotary disk (23) mounted on a lower end of a rotary spindle (25). An offset mount for the spindle includes a shank (41) adapted to be received in the vertical slot of a clamp (22) and a sleeve (45) offset from the shank for rotatably supporting the spindle. The sleeve is connected to the shank, using a bifurcated portion comprised of spaced plates (47, 48) connected to the sleeve with a lower pivot member (52) and an upper fastener (58) extending through arcuate slots (61 and 62) in the spaced plates. The disk may be tilted at a selected angle or set horizontally and for some applications may be set to release in the event the blade strikes an obstruction. A cultivator implement has front and rear disk gangs (108, 109, 114, 115) and a rear centered tool assembly (21).

Abstract: A mounting/positioning apparatus for attaching an agricultural implement such as a reel unit or a rotary packer assembly to the frame of a tillage machine is disclosed. The apparatus includes two opposing end portions rigidly coupled together by means of a cross member with the agricultural implement rotationally mounted between the two opposing end portions. The two end portions are pivotally coupled to a first frame cross member to which is rigidly coupled one end of a second frame member extending rearwardly therefrom. The other end of the second frame member is flexibly coupled to the cross member by means of a longitudinally compressible spring providing for the vertical displacement of the rotating implement upon impact with an obstruction. Spring tension is adjustable for varying the downward force applied to the working implement with the second frame member incorporating shear pin protection for the implement against high impact forces applied thereto from contact with rocks and other obstructions.

Abstract: A subsoil cultivating tool is sickel-shaped and planar with front and rear edges configured the same to facilitate manufacture. A plurality of such tools can be stamped or punched from a single sheet or plate and waste is minimized. The tool has an upper fastening portion that is mounted on an implement frame via an inclined support connected to a frame beam. The support is channeled and the fastening portion held between the two limbs to rest on the web. At the front of the limbs, a pivot connects the front of the fastening portion and at the rear, a shear bolt on support tags bears on the upper edge of the tool. A row of tools with respective supports can be mounted on the frame with a spraying device, a roller and seed drills trailing in that order.

Abstract: An implement mounts a row of rotatable members, having resilient tines, that are rotatable about upwardly extending shafts. The frame portion is pivoted to a forward coupling member at several points, a lower one of which is a shear pin that allows the frame portion to tilt upwardly about an axis defined by two upper pivots upon overload of a tined member.

Abstract: The improved automatic ripper reset mechanism of the present invention includes a punch fixedly disposed on the distal free end of a ripper blade head for downward arcuate motion in response to the ripper blade striking an obstruction, a die having a matching contour surface, an incrementally fed shear bar disposed opposite the punch for fixed engagement between the punch and the die when the reset apparatus is in ripping functional position, and to be sheared off when the reset mechanism is sprung, a reset mechanism frame supporting a spring loaded push block means for incrementally advancing the shear bar, brake means for preventing expulsion of the shear bar from the frame by the push block means when the reset mechanism is in sprung position, and torque storage means for receiving torque during the springing of the reset mechanism by means of striking an obstruction and for retransmitting the stored torque to reset the mechanism.

Abstract: A soil cultivating machine has a beamed frame, and working members arranged in pairs. Two working members are mounted one behind the other, preferably on a common carrier beam which is releasably secured to transverse beams of the frame. Thus the two working members and the carrier beam constitute a working unit which is readily releasable from the frame. The two working members of the pair are interlinked by a connecting rod to ensure a uniform operating depth over irregular ground and the members can be located on opposite sides of the carrier beam as viewed in plan. In one embodiment, the working members are mounted on pivot pins journalled to different frame beams and the members are arranged in rows that are inclined to the direction of travel. The beams with working members can be arranged in groups that are hinged to one another for elevation to a reduced transport position.

Abstract: In an agricultural implement for use in ground breaking procedures including a frame adapted to be moved over the underlying terrain in a given direction, at least one ground breaking tool, a pivot connecting the tool to the frame for pivotal movement thereon about a generally horizontal axis generally transverse to the direction of movement between a forwarding ground breaking position and a rearward inoperative position and releasable means interconnecting the tool and the frame for normally holding the tool in the forward position and for releasing the tool for movement to the rearward position upon the tools encountering resistance sufficient to damage the implement.

Abstract: A cultivating machine includes a forward row of subsoil tools and a plurality of elongated cultivating rollers having support plates to which soil penetrating T-section bars or knife edged bars are attached. To the rear of the cultivating rollers, a trailing roller is mounted on the frame and adjusting arms to the roller can be interconnected with the frame to raise or lower same and thereby set the soil working levels of the subsoil. Each cultivating roller can have its soil penetrating depth controlled through pivot arm connections that move the roller through an arc centered on the pivot axes which extend transverse to the direction of machine travel. The machine frame has a coupling that is connectable to the lifting hitch of a tractor and tanks of liquid soil treating material are mounted on the tractor adjacent the coupling.

Abstract: An earth-working implement and a method utilizing such an implement for preparing soil for planting seeds and concurrently planting the seeds wherein a plate-like plow stock penetrates the soil to a substantial depth below ground level, and the soil is concurrently leveled and smoothed inwardly behind the plow stock by concave and forwardly diverging cutting discs straddling the forward path of the plow stock and whose lower extremities are spaced a substantial distance above that of the plow stock for forming a substantially smooth linear area of loose soil. A furrow opener, behind the plow stock, forms a planting furrow in the soil along the linear area, while seeds are being deposited in the furrow and soil is pressed to cover the thus planted seeds. An improved mounting post arrangement is provided for supporting each of the diverging discs in predetermined angular relationship.

Abstract: An implement mounts a plurality of working members through couplings, each coupling having a first member that can turn relative to a second member, upon overload. A shear pin normally prevents relative turning between the two members until overload and the pin is mounted on a holder that is releaseably connected to the coupling. The pin is in severable portions, one portion being sheared upon each overload and the remainder of the pin being automatically advanced to re-establish operative connection between the members when the latter are again in operative alignment.

Abstract: An implement is connectable to the lifting hitch of a tractor and at least one rotary tool is driven to rotate about an upwardly extending axis. The tool or a trestle frame has an overload connection that allows the tool or frame to pivot to an inoperative position upon overload. The tool can be a blade on a carrier part that is pivoted to a support part on a spoke and a shear pin interconnected to prevent such pivoting unless tripped by overload. The parts can have a discharge arrangement that ejects the sheared pin portion from a recess in one part. Upon adjustment of the tool, the pin remainder can effect reconnection. In another embodiment, the trestle frame is coupled to a three point hitch and the implement can be tripped through a pivot connection, including a strut made up of two shaft parts, one of which holds a shear pin and the other receives a pin portion near the junction of the parts. The pin element normally prevents relative pivoting of the implement relative to the tractor connection.

Abstract: A cultivating machine has a row of soil working members rotatable about upwardly extending axes and each member includes a carrier from which tools detachably depend. The lower tool ends have blades that are adjustable and detachable from the remainder of the tools. The blades are normally faced in the direction of rotation of the respective soil working member. The widest portions of the tools are substantially tangential to an imaginary circle centered on their axis of rotation.

Abstract: A safety coupling between a driving coupling and a driven coupling has a shear pin operative connection that shears upon overload, allowing relative movement between the two couplings. The shear pin is urged to establish a second operative connection after limited relative movement between the couplings. In each operative connection, respective stops retain the pin against further displacement. In one application, soil working rotors are rotated by shafts coupled to tool supports. One or more of the driving shafts can be connected to its driven support through a shear pin. A flange on the shaft has an opening that houses the lower part of the pin and the tool support has a bore that houses an upper pin part. Upon shear, the flange turns and a spring urges the remainder of the upper pin part downwardly, whereupon a recess in the flange engages that part and a second operative connection is established.

Abstract: An extendible, collapsible spray drawbar device is disclosed comprising a triangular shaped frame structure adapted at the forward apex end for pivotal attachment to a prime mover and having wheels at the rear base end, transverse spray bar elements pivotally mounted to and extending from the base of the frame structure, wheels pivotally mounted to the outer end of the spray bar element, extension bar elements hingedly mounted to the outer end of the spray bar elements, and support elements pivotally mounted at one end to the transverse spray bar element and pivotally mounted at the other end about a horizontal and vertical axis to a brace member transversely extending across the triangular shaped frame structure. During the spraying operation, the transverse spray bar elements and the extension bar elements extend linearly from the base of the triangular shaped frame structure.

Abstract: A subsoil plow having a plurality of forwardly facing C-shaped plow teeth arranged on a rigid frame in a generally V-shaped array. Each plow tooth has an upper portion, a curved shank portion, and a bottom tip and is mounted on the frame by a so-called pivot bolt located directly above the tip of the tooth and by a shear bolt spaced from the pivot bolt, the shear bolt being adapted to fail in shear upon application of a predetermined load to the plow tooth, such as may be occasioned upon the tooth striking an underground object as the plow is pulled through the field, so as to release the tooth and to permit it to swing upwardly and rearwardly about the pivot bolt without the tip of the tooth digging deeper into the ground.Also disclosed is a hitch which enables the plow to readily be coupled to a tractor equipped either with a category 2 or 3N or a category 3 three point hitch with or without an automatic coupler.

Abstract: A construction vehicle has a pull hook arrangement mounted on a rearward end of a frame thereof for towing purposes. Such arrangement comprises a pull hook and energy absorbing means normally secured between the frame and the pull hook and adapted to break-away from the frame when the load on the pull hook exceeds a predetermined magnitude. The energy absorbing means preferably comprises a tubular member which is tapered-down rearwardly to thereafter permit it to be drawn through an aperture formed in the frame to absorb energy thereby.

Abstract: This invention relates to earth processing equipment and, more particularly, to a scarifier or plow apparatus capable of deep soil penetration which has an attached earth fragmentation assembly. The apparatus comprises a frame mounting on its forward end, a scarifier assembly which is adjustable from the frame to provide varying soil penetration. An earth fragmentation assembly is permanently affixed to the frame immediately behind the scarifier and comprises a scoop bucket with internal, shaft-mounted rotatable arms or cudgelers for fragmentizing earth passing interiorly of the fragmentation assembly and with a fixed bottom support for the soil within the scoop bucket. This apparatus is particularly useful for the single pass processing of compacted agricultural beds.

Abstract: The plow carrying brackets are employed in pairs, each comprising a L-shaped shank pivotally mounted at one of their ends to the drawbar of a plow frame, the interior vertex of the shank engaging a rest which issues sidewardly from the drawbar and secured by a shear pin through the upstanding leg portions of the crossing shanks. The interior vertex of the shanks is an obtuse angle which juxtaposes the plow point of the plow bottom carried by the bracket directly beneath the pivot point of the bracket.