Abstract: A multipurpose agro-farming and gardening machine for earth pit digging, tilling, raking, soil bed preparation on plain terrains, as well as in sloppy terrains in hilly areas, weeding, manuring and seeding, with augers, raking rods, compost or manure and seed drop attachments for use in small farms and home gardening. Machine of the proposed invention comprises three rotary soil excavating augers (7) and a linear actuator (2) for driving the assembly of augers to dig into the soil for making pits or for making trenches with adjoining raised beds. Attachments enable adopt double digging practices for preparation of soil beds, manuring and seeding comprising [i] raking rods with spikes for deep digging and [ii] attachments for compost or manure drop and seed drop.

Abstract: The invention concerns a method using a robot for an automatic treatment of a weed, the method comprises steps of capturing images of said weed with a camera on said robot; determining with said images a distance between the weed and a second vegetable organism; and selecting a treatment tool of said robot for a treatment of the weed from a group of treatment tools as function of said distance. The invention further concerns a robotic vehicle for carrying out the method for an automatic treatment of a weed.

Abstract: An agricultural tillage implement with a hydraulic system having a left wing hydraulic subsystem with an outer left wing hydraulic circuit supplying hydraulic pressure and flow to an actuator for actuating an actuator of an outer left wing folding implement section, and a right wing hydraulic subsystem having an outer right wing hydraulic circuit for actuating the actuator of an outer right wing implement section; the hydraulic system additionally having a hydraulic flow divider dividing hydraulic flow and pressure between the outer left wing hydraulic circuit and the outer right wing hydraulic circuit, the hydraulic flow divider being configured to coordinate the motion of the outer left wing section and the outer right wing section.

Abstract: A micro-tiller module that is releasibly engageable with a hand drill can include a gear box assembly, first and second tilling wheel assemblies, and a stabilizer fork. The gear box assembly can include a housing, an input shaft extending along an input shaft axis, first and second output shafts, and a plurality of gears. The external end of the input shaft is configured to be releasibly engageable with a chuck of the hand drill. The tilling wheel assemblies can be respectively mounted to the output shafts. The stabilizer fork can extend from a base end fixed to the housing, along a stabilizer axis transverse to the input shaft axis, to a distal end from which first and second tines project. Each of the tines can extend further along the input shaft axis than transverse to the input shaft axis.

Abstract: A vertical tine tiller that includes a chassis, an engine attached to the chassis, a handle assembly extending from the chassis to allow an operator to control the tiller, and at least two vertically oriented tine assemblies. Each of the tine assemblies include a plurality of tines attached to a plate, wherein the tine assemblies are rotatable about a vertical axis such that the tines of each tine assembly provide a grinding path and adjacent tine assemblies have at least partially overlapping grinding paths. The tines are removably connected to the plate.

Abstract: A track scraper for removing rubber from a racetrack is provided. The scraper comprises rotating blades that are moved along the surface of the track and that skim off portions of rubber that has been deposited on the track by race cars. The scraper is installed on and powered by a standard garden tractor.

Abstract: The invention relates to a drill for realizing a partially tapered bore hole in a soil covering a hardpan layer. The drill comprises a rotatable drivable unit that is provided with a carrying structure and a multiple number of cutting elements carried by the carrying structure. The multiple number of cutting elements are arranged along a line extending substantially radially and outwardly from a central axis of the rotatable drivable unit. Further, lower ends of cutting elements in a radial inner section are mainly positioned in a plane transversely to the rotation axis of the rotatable drivable unit. Lower ends of cutting elements in a radial outer section are mainly positioned in a downwardly tapered surface having a symmetry axis coinciding with the rotation axis of the rotatable drivable unit. The lower ends of the cutting elements may subscribe, during rotation, a truncated cone surface.

Abstract: In orchards or fields of grape vines, weeding in inter-plant spaces may be performed with a mechanical weeder. The weeder may include a frame configured to be propelled by a motorized vehicle. A rotatable weeder unit may be pivotally connected to a pivot arm attached to the frame and a spring may be connected to hold the rotatable weeder unit in a nominal pivotal position relative to the frame responsively to a force exerted by the spring. When encountering a producing plant, the weeder unit may deflect away from the plant thereby precluding damage to the plant.

Abstract: Provided is a landscaping attachment for use with a landscape trimmer having a rotational drive mechanism. The landscaping attachment includes a ring having an outer surface and an inner surface, with the ring being rotatable about a rotation axis. An attachment plate is connected to the ring and is configured to be engageable with the rotational drive mechanism. The landscape attachment further includes a blade having a proximal end portion and an opposing distal end portion. The proximal end portion is connected to the ring and the distal end portion is disposed radially outward from the ring. The blade defines a cutting plane about the rotation axis as the ring rotates.

Abstract: An earth-working apparatus (1) having a drive (1?, 1?) located above the ground is described. The earth-working apparatus has at least two earth-working devices (300, 400), a first earth-working device (300) including a rotating cutter and agitator device (30) that penetrates into the ground to be worked, having first tools and a second earth-working device (400) including a comminuting device (40) having second tools. Each earth-working device (300, 400) is individually mountable on the drive. The earth-working devices (300, 400) may be individually mountable on the drive. It is also possible to combine two or more earth-working devices and to mount them together on the drive. A method for working particularly encrusted ground surfaces is also described.

Abstract: A novel drill for the aerification of turf grasses is disclosed. The drill comprises a chuck and a fluted turf drill bit held by the chuck. The chuck includes a locking mechanism which permits the chuck to rotate freely about its longitudinal axis when loaded in compression (as when the drill is inserted into the ground) but which locks, preventing rotation, when the drill is loaded in tension (such as when the drill is withdrawn from the soil). The drill bit has a smooth upper section and a fluted lower section. The smooth section decreases the probability of entangling the turf in the drill bit with subsequent lifting of the turf when the drill is withdrawn. The tip of the drill bit is adapted to provide a torque to the drill bit during insertion into the ground. Thus, the bit spirals into the ground upon insertion, but locks upon removal, thereby permitting the flutes of the bit to cut a cylindrical hole in the ground while removing soil from the hole by retaining it in the space between the flutes.

Abstract: A landscaping and gardening attachment for a hand-held rotary power tool, such as a hand-held drill or weed trimmer, is provided for facilitating hole digging and the subsequent planting of vegetation. The landscaping and gardening attachment of the present invention comprises both a blade member and an elongated central shaft. The elongated central shaft is attached to the hand-held power tool at a first end of the shaft, and a second end of the shaft is secured to the blade member. The blade member may comprise a generally triangular-shaped axial cross section. In use, the blade member provides for rapid digging of planting holes, wherein the removed dirt remains about the circumference of the hole. In alternative embodiments, the hand-held power tool may be in the form of commonly owned rotary power tools, such as a weed trimmer, a hand-held power drill, a cordless screwdriver, or the like.

Abstract: An auger planter for forming small holes in the earth for the planting of flower bulbs, plant seedlings and plants, and for the insertion of termite monitors and baits. The auger includes a central shaft and a single helical flighting having its leading edge configured to have a sickle blade shape with a cutting edge. The opposite end of the flighting has a portion which is directed in an essentially vertical orientation proximating an alignment parallelling the axis of shaft.

Abstract: A novel drill for the aerification of turf grasses is disclosed. The drill comprises a chuck and a fluted turf drill bit held by the chuck. The chuck includes a locking mechanism which permits the chuck to rotate freely about its longitudinal axis when loaded in compression (as when the drill is inserted into the ground) but which locks, preventing rotation, when the drill is loaded in tension (such as when the drill is withdrawn from the soil). The drill bit has a smooth upper section and a fluted lower section. The smooth section decreases the probability of entangling the turf in the drill bit with subsequent lifting of the turf when the drill is withdrawn. The tip of the drill bit is adapted to provide a torque to the drill bit during insertion into the ground. Thus, the bit spirals into the ground upon insertion, but locks upon removal, thereby permitting the flutes of the bit to cut a cylindrical hole in the ground while removing soil from the hole by retaining it in the space between the flutes.

Abstract: A device for reconditioning a damaged sports surface. The device includes at least one rotatably driven shaft with two ends, one of which is connected to a frame, the other end being disposed towards the surface. The driven shaft is disposed orthogonal relative to the surface. A work head is connected to the shaft and is in contact with the surface. The work head is rotated by the shaft relative to the surface and reconditions the surface. A mobile device is disclosed.

Abstract: An auger to assist in ground-burrowing or mixing paint or concrete, is used by attaching it to an electric or cordless power source. The major advantages over previous augers are: a hex head design prevents slipping in the drill chuck, an offset boring tip provides better digging, and a removable extension allows for the digging holes from a sitting or standing position possible without straining. The cutting edge of the auger's discs is sharpened for easier digging in hard soil. A single spring pin lock connects a first shaft to the extension shaft.

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 manual gardening implement having two tools, for example ground-working tools having tines for breaking up soil. At least one of the tools has two positions, a working position in which it is located at the working end of a shaft of the implement, and a non-working position in which the tool is drawn up the shaft away from the ground-working end of the implement to occupy a retracted position.

Abstract: Soil cultivating apparatus which includes at least one rotary cutting assembly having a plurality of earth working implements (25, 26) spaced around a peripheral region of a rotary support member (18) mounted for rotation about a central upright axis of rotation. The implements (25, 26) depend downwardly from the support member (18) and are in first and second sets. Implements (25) of the first set each have a primary cutting edge extending upwardly, rearwardly and outwardly from a lower soil engaging extremity. Implements (26) of the second set each have a primary cutting edge extending upwardly rearwardly and inwardly from a lower soil engaging extremity. The lower soil engaging extremities of implements (25) of the first set are at a radial distance from the axis less than the radial distance of the extremities of the implements (26) of the second set.

Abstract: What I claim is new about my invention is that the double-edged plows on the ends of the plurel to tines (eight as shown) can cultivate and entangle weeds, weed roots and root vines in forward or reverse, will entangle the plural (eight as shown) of tines and double-edged plows with weeds, weed roots and root vines. When a given amount of weeds, weed roots and vines are entangled, stop rotation. Push down Sleeve 7 to have Sleeve 9 cut and push all debris off center pin and tines for removal of the collection of weeds, weed roots and vines.

Abstract: A rotary hand-held tilling and weed removing device comprises a shaft; a “T” shaped handle and two lock collars and is attachable to the chuck of a power drill. The shaft is provided with rotary arms which allow tilling and weed removal in very confined areas and precision control from the shaft handle adds to the ease of use. This gardening tool has a simple design and does not require blade or tiller bar replacement making it very cost effective.

Abstract: A rotary cutting device or element (20) includes a base or support housing (30) with a centrally arranged fastening region (32) adapted to operatively connect with an associated drive (24) that rotates the element (20) about a first rotational axis (44). The support housing (30) further includes an outer edge or periphery (50) disposed away from the centrally arranged fastening region (32). At least one cutting tool (22), including a proximate end (52), is selectively attachable to the support housing (30) at the outer edge or periphery (50) thereof. Preferably, a spring biased retaining member (72) is engaged with the proximate end (52) of the cutting tool (22) to thereby secure the same to the support housing (30).

Abstract: An excavating apparatus having a rotating cutting head for precision removal of soil, for site preparation prior to construction projects where level grade is required. The powered cutting head is mounted on a longitudinal frame, with travel of the cutting head guided along the length of the frame. Adjustable positioning is provided to maintain position of the cutting head longitudinally along the frame. The frame is pivotally anchored to the ground at one end and is supported by wheels at the other end. Wheels are positioned to facilitate rotation of the frame and cutting head around the anchoring pivot, which is located at the center of the area to be excavated. The elevation of the frame is adjustable to selectively raise and lower the depth of the cutting head. The apparatus is easily transported and has the ability to perform precision excavating operations in confined areas.

Abstract: A multi-purpose weeder attachable to a hand-held rotary power implement is designed to weed, aerate and till soil. A vertical shaft is removably attached to the implement to permit erect operation of the weeder. A pair of substantially spiral-shaped blades are rigidly connected at an acute angle with the lower end of shaft to cause discharge of weeds upwardly and outwardly from soil when the shaft is rotated. The blades are equally spaced from the shaft as they diverge upwardly. A top end of an auger is connected to the lower end of the shaft to penetrate weed and soil at its free end. An annular member with a cross horizontal element connects the upper ends of the blades to the shaft.

Abstract: The key to this invention of a rotary hand-held tilling and weed removing device is simplicity. The three part design consisting of a 36″ shaft; a “T” shaped handle and two lock collars and only weighing 1.5 pounds makes it a multi purpose garden tool for use with any ⅜ household drill. Easlily attached to the drill chuck, the 2 inch wide rotary arms allow tilling and weed removal in very confined areas and precision control from the shaft handle adds to the ease of use. This simple design does not require blade or tiller bar replacement making it very cost effective. A low carbon, one piece, steel shaft requires no maintenance.

Abstract: A method and apparatus for obtaining optimal cultivation of a parcel of land. A soil working machine with drivable working members, such as a rotary harrow, is provided with soil working members which rotate about approximately vertically orientated axes, and cooperates with a geographic positioning system such as DGPS, GPS, Lorean or a dead reckoning system to determine on a continual basis the actual position of the soil working machine on a parcel of land. Simultaneously, the condition or the composition or both of the underlying soil is determined and data of same is transmitted to a processing unit which maps the parcel of land into subareas wherein the states of the soil are the same. A control unit applies this mapping for controlling the soil working members during the soil working machine's operations so that each subarea of the same soil state is optimally cultivated.

Abstract: Tool for soil cultivating machine, such as a weeding machine, hoeing machine, and vineyard plow, includes a rotor on which interchangeable tools are mounted. The tool comprises a fixing end located in an upper space zone, this end being arranged or configured so that it can be mounted with freedom of pivoting. The tool includes a connecting portion located in an intermediate space zone, the intermediate portion extending downwardly from the fixing end, and an active portion located in a lower space zone. The soil cultivating machine includes a rotor rotating about a vertical or substantially vertical axis and is provided, at its periphery, with interchangeable tools, wherein the rotor is arranged so as to enable the tools to be mounted with freedom of pivoting during operation.

Abstract: A garden auger having an auger blade with a substantially rectangular body section for use with a drill motor. The preferred auger body including toed-in wings for rapidly clearing earth from the created hole and cutters formed at one end of the auger blade.

Abstract: Equipment for digging ground in urban areas includes a hinged support and maneuvering arm (3), an omnidirectional damping device (36), a vibration or oscillation generator (38), a motor (40) and a tool (28) which is made to rotate by the motor and provide with a helical structure with a tip (28B) designed to penetrate in screw fashion into the ground and act thereon it by the vibrations received, so as to dislodge it and break it up.

Abstract: A device for digging holes for setting out bedding plants, including a rotary tool for digging a hole, the tool having a shank adapted to be chucked to a power drill and passing through an inverted bowl shaped transparent plastic cover to contain excavated soil and dispose the same in an annular mound, for ready repacking of the soil around the plant roots. A limit stop arrangement limits the extent of advance through the cover which rests on the ground during the use of the device, so as to set the hole depth. The tool has a flat bladed digging portion forming a flat bottomed hole.

Abstract: A soil preparation-for-planting tool which has a drive motor with a rotatable portion including a central shaft with a distal cutting end, with the central shaft further having secured therewith an outwardly extending support to which is affixed one blade only, adapted to engage soil as it traverses around a central axis defined by the central shaft to divert into a central area soil, with the output shaft adapted to enter the soil first to locate dig and maintain the position of the shaft at a center of a proposed planting hole. The output shaft has toward its outer end one blade secured to rotate with the output shaft so as to effect a breaking of soil as it is rotated through the soil. The blade is of a shape and at an angle such that it will enter into soil by being rotated therethrough but upon being withdrawn, will be adapted to readily shed any soil.

Abstract: A method and apparatus for clearing debris is disclosed. More particularly, a method and apparatus for clearing manure and other material from under a feedlot fence row is disclosed. The apparatus is preferably mounted to a vehicle such as a skid loader. The apparatus consists of a mounting structure for affixing to a vehicle, a pivotally mounted arm affixed to the mounting structure, and a motor driven wheel rotatably mounted proximate a distal end of the arm. The wheel has a plurality of teeth or shanks extending therefrom for digging out debris from under a fence row and throwing the debris away from the fence. In practice, an operator may drive a vehicle parallel to a fence row and selectively pivot the wheel in and out between fence posts to clear manure out from under the fence.

Abstract: A cultivator for the selective cultivation of limited ground areas, which includes a body adapted to be mounted on a prime mover, so that the body is able to be selectively brought into contact with the ground surface to be cultivated. A rotatable shaft extends outwardly from the body, with the work head being mounted on the rotatable shaft for permitting rotation thereof, and the shaft being driven by a motor.

Abstract: A hand-held soil tilling system including four tiller components. Each tiller component includes an elongated central extent that is formed with a point at its end. Each tiller component also includes an upper extent in a curved configuration terminating adjacent to a common axis of rotation. The tiller components being flared outwardly with the distance therebetween being greater adjacent to the lower ends than adjacent to the upper ends. A cylindrical coupling post which has an upper extent formed with projections and a flange to allow coupling with the electrical machine and a lower end adapted to receive thereadjacent the upper ends of the upper extents.

Abstract: This is a grass remover to remove grass from the surface of an area in a circular path about the top of a guide hole in which a termite bait station may be inserted. This includes a circular skirt with a hub in the middle and a plurality of cutting blades sharpened at the lower end and carried between the hub and the skirt. A guide cylinder is fixed to the hub and extends downwardly into the guide hole. A stem extends upwardly from the hub and is of a character to fit into the chuck of a hand drill. Operation of the hand drill when the guide cylinder is in the guide hole causes the grass to be removed from the circular area about the top of the guide hole.

Abstract: A multi-purpose landscaping device for use with as hand-held rotary power tool such as an electric drill includes a shaft adaptable at one end for removable and operative connection to such a power tool, and a rotatable implement removably attached to the other end of the shaft, so that replacement of the rotatable implement is possible without replacement of the shaft. The rotatable implement is selected from the group consisting of a greenery cutter, a blower, a pruner, a soil augur and a weed extractor.

Abstract: The invention relates to a soil treating device comprising at least one working element rotatably driven by a rotation shaft and a frame accommodating the working element and displaceable practically parallel to the ground, characterized in that the rotatable working element consists of a plurality of contact elements intended for ground working and fixed in a holder, wherein at least a part of the contact elements lies at different distances from the rotation shaft.

Abstract: A cultivator which may be attached to a tractor or similar vehicle for use in cultivating rows of plants, includes a rotary tine assembly having a plurality of vertically-oriented, rotary tines for cultivating soil on each side of a row of plants; shields associated with each row of plants for limiting throwing of soil by the rotary tines; a drive motor for moving the rotary tines to cultivate the soil; and a support structure for securing the rotary tines, the shields, and the drive motor thereto and which is adapted for connection to the tractor or similar vehicle, wherein dimensions of and relative adjustments of the tines and the shields are chosen so that a predetermined amount of soil passes between selected shields, whereby weeds between adjacent rows of plants may be uprooted and/or destroyed and soil may be ridged and heaped around the plants and in the rows.

Abstract: A planting hole forming apparatus includes a central shaft having a longitudinal axis, a bottom leading end and an upper trailing end, and a discontinuous flighting comprising a plurality of flighting sections spiraling around the central shaft at spaced locations along the shaft adjacent the bottom leading end. Some form of drive mechanism, for example a hand-held drill, is used to rotate the central shaft about its longitudinal axis to thereby form the planting hole. The drive mechanism is chosen to accommodate the size of the central shaft and to supply the necessary torque to rotate the central shaft sufficiently to form the planting hole. The structure of the flighting sections is such that while the planting hole is being formed the soil is simultaneously pulverized with a substantial portion of the pulverized soil being left in the hole.

Abstract: A ground working device for powered hand-held rotary devices includes four resilient ground working members mounted upon and extending downwardly from a mount and includes a weighted hub which along with the mount is detachably attached to the bottom of a rotatable shaft of a rotary device for rotation therewith and includes a flexible shroud fastenable to a housing of the rotatable shaft and shrouding the ground working members to prevent debris from being sent airborne and possibly injuring the user or others nearby. The ground working device conveniently and easily tills, weeds, and cultivates the ground especially lawns and gardens.

Abstract: A garden cleaning implement (10) for weeds and the like comprising a cutting mechanism (14) and a retractable guard mechanism (28), generally free to "float" up and down about the cutter mechanism, carried on, for example, an extended pole handle (22). The cutting mechanism includes--an associated rotational power source (16/116); an intermediate, rotatable shaft (18) connected thereto; and a rotatable, rectangular blade, cutting member (20).

Abstract: A soil tilling device that is pulled by a tractor vehicle comprises at least one tool holder that is supported at a supporting element and is rotatably drivable. At least two circular disk-shaped soil tilling tools are connected to a respective one of the tool holders and are distributed over a circumference of the tool holder at a uniform distance from one another. Each one of the soil tilling tools is connected to a shaft whereby the shaft is supported at a support that is connected to the tool holder. The soil tilling tools are rotatable about an axis of rotation thereof corresponding to the shaft. This shaft is slanted relative to an axis of rotation of the tool holder such that the soil tilling tools have an angle of 20.degree. to 40.degree. to a surface of soil to be tilled whereby circumferential sections of the soil tilling tools form tilling surfaces. With this embodiment it is possible to achieve a clean soil tilling without soil parts or rocks being pulled from the soil and thrown into the air.

Abstract: A helical coil assembly, consisting of spaced coil turns mounted on a shaft at right angles to the coil, is rotated by any suitable power source. Any plant growth stalks in the path of this rotating coil enter and are caught in the channel between the spaced coil turns, spun centripetally, clumped together, grasped and pulled by the coil so that the plant growth, whether crops or undesirable weeds, undergrowth, etc. is removed by its roots. The helical coil assembly may also include a cutting blade rotating parallelly and adjacent to the helical coil, for severing the clumped plant stalks held under tension by the coil, thus moving or trimming the plant growth. Multiple coil assemblies, arranged in various groupings, are combined for a wide range of mowing, trimming, harvesting or removing purposes.

Abstract: Mulching apparatus having a tapered tooth structure which prepares a planting spot such that, when the apparatus is withdrawn from the ground, mulched residue remains within or adjacent to the planting spot. The apparatus may be removably attached to the boom of an excavator type vehicle and drivingly coupled to the vehicle's hydraulic drive system. The machine operator actuates and manoeuvres the vehicle, boom and mulching apparatus to rapidly prepare a series of mulch-containing planting spots for planting seeds or seedlings, for example in large scale reforestation projects.

Abstract: This invention is comprised of an auger with fixed or replaceable tips designed to cut openings through sheet plastic or fiberglass ground coverings and drill, in a continuous operation, an appropriate diameter hole for planting seedlings or seeds as may be desired. This invention is comprised of a shaft with spiral auger and a cutting tip with a cylindrical cutting edge and a recessed drilling point as an assembly which is removably attached to the shaft with flights on it. The device can be driven by a conventional electric drill with a one-half inch chuck.

Abstract: A multipurpose cutting device for use with power drives is disclosed. Specific and different blade configurations are provided on opposite sides of an elongated bar or a disk type support for performing different cutting functions. By securing one side of the elongated bar or disk to the end of a shaft, one function can be performed. By securing the other opposite side of the elongated bar or disk to the shaft a different function can be performed. By securing or using the elongated bar or disk at an angle to the material being cut both blade configurations can be used simultaneously to perform yet another function. The blades on the one side and the blades on the other side of the elongated bar or disk may each have the blade configuration facing in one direction of rotation of one shape and the configuration facing in the other direction of another shape for different cutting characteristics when the direction of rotation is reversed.

Abstract: A cultivator for such crops as beets, maize, potatoes, etc., planted in rows. A machine frame can be mounted on the three-point hitch of a tractor. Several chopping tools mounted on it, can be detached from tool holders, and are rotated on vertical shafts. Force from a common drive mechanism is distributed to the shafts through a transmission. Each tool is rotated by one shaft and is mounted on a parallelogram. Each chopping tool (20) has one or more brushes that can be secured to the tool holder (18) and that have bristles of a flexible and resilient material and is shaped like an inverted flower pot. A stop (22) that rests against the ground at a level that can be adjusted in relation to the tool is accommodated in the inside (21) of the tool and can be detached from its center.

Abstract: A hoe attachment for a conventional rotary line trimmer designed to cultivate soil when rotated and which is particularly useful for cultivating small areas of soil. The attachment comprises a plurality of downwardly extending arms each having a blade projection at the lower end thereof extending radially inwardly toward the vertical axis of rotation.

Abstract: A rotary tiller device for tilling around trees and other similar obstacles comprises a rotary tilling head with a plurality of tines extending slightly outwardly, downwardly and forwardly from a support which rotates around a vertical axis of the head. A central plate rests upon the ground and defines a tilling depth of the tines. A cover prevents the support from damaging the tree. A mounting system for mounting the unit on the belly of a yard tractor includes a pair of rails mounted in place of the removed belly mower and a hydraulic fluid reservoir tank which slides into position on the rails and defines a support for the tiller head. A linkage between the tank and the tiller head includes a six-bar lever system mounted upon a pivotal plate.

Abstract: A three-point hitch mounted in-row tiller has a conventional three-point hitch mounted frame member with an outrigger arm pivotally mounted to the frame member in a manner that accommodates pivotal movement of the outrigger in relation to the frame member about two orthogonal axes. Pivotal movement about one of the axes causes tilting of a working tool mounted on the outrigger arm, and pivotal movement about the other axis causes vertical lifting and depth control of the working tool. Various working tool embodiments, including several with flexible teeth, and a mechanical/hydraulic sensor apparatus are also included.