Rotary Driven Tool Patents (Class 172/123)
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Patent number: 4586444Abstract: Liquid applications of materials such as herbicides usually are broadcast over the field and then incorporated by harrowing or the like. The present device utilizes a plurality of open based boxes having a rotary cultivator therein with a spray nozzle attached to a supply of liquid chemical under pressure thus restricting the application of the chemical to a band the width of the box and incorporating it at the same time. Rake teeth smooth out the soil behind each applicator and a seeding or planting machine may be hitched behind the incorporator followed by a packer so that the entire chemical treatment, incorporation thereof, planting and packing can be undertaken in one pass over the field.Type: GrantFiled: May 7, 1984Date of Patent: May 6, 1986Inventor: Cornelius Thiessen
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Structure for attaching tines for cultivation by reversible rotation in rotary cultivating apparatus
Patent number: 4556113Abstract: Cultivating tines, each having opposite cutting edges, are pivotably supported by tine mount members on a tine shaft reversibly rotatable about a horizontal lateral axis. One of the cutting edges of the tine is retainable in a position rearward with respect to the direction of forward rotation, while the other cutting edge is retainable in a position rearward with respect to the direction of reverse rotation. When held in each of these positions, the tine is restrained by resistant force imparting means from being pivotally moved by a centrifugal force. The resistant force to be imparted by this means is smaller than the reaction to be produced when the tine is driven into the soil.Type: GrantFiled: November 2, 1983Date of Patent: December 3, 1985Assignee: Kubota Ltd.Inventors: Taro Saito, Kazumi Umeki, Takaaki Ohno, Hirobumi Sakane, Masahide Tsujino, Keiichi Sanpei, Yoshibumi Nagamine, Yoshitaka Sato -
Patent number: 4545438Abstract: The present invention pertains to a plowing implement provided with rotary tools of the kind comprising a horizontal powered rotor (2) provided with a series of sets (7) of radial tools (9). Each of said tools (9) consists of a substantially irregular, arcuated and pointed wedge-shaped body, having such form that, at its front portion, it exhibits a first face (ABD) remarkably inclined to a vertical plane (.pi.) and in the form of a moldboard defined forwards by a first cutting edge (AD). At its rear portion, tool (9) exhibits a second cutting edge (BC), slanting with respect to the first one and substantially transverse thereto, which defines a second face (BCD) inclined to the first and contiguous to it.Type: GrantFiled: January 10, 1984Date of Patent: October 8, 1985Inventor: Caltabiano Giovanni
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Patent number: 4520873Abstract: Agricultural apparatus to be driven by a tractor comprises a main frame attachable to the rear end of the tractor, a pair of ground-engaging wheels carried on the opposite ends of the main frame, a pair of rotary-driven agricultural units mounted on opposite sides of the main frame along a common axis, and a third rotary-driven agricultural unit mounted on the main frame centrally between the pair of units and rearwardly of their common axis. The three rotary-driven agricultural units such as rotary tillers, are each independently mounted to the main frame by a separate 3-point connection, permitting each to be float upwardly or downwardly with respect to the ground.Type: GrantFiled: June 10, 1983Date of Patent: June 4, 1985Assignee: Eshet EilonInventor: Nir Gefen
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Patent number: 4492271Abstract: A tine tiller has a frame mounted on traction wheels for movement in either direction. The frame has tines rotatably mounted on each side thereof and driven in either direction irrespective of the direction of movement of the frame by rotation of the traction wheels. The speed of rotation of the traction wheels can be changed without stopping movement of the frame.Type: GrantFiled: July 12, 1982Date of Patent: January 8, 1985Assignee: Brinly-Hardy Co., Inc.Inventor: Charles W. Doering
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Patent number: 4421177Abstract: A rotary cultivator is disclosed which is adapted to be supported upon a rear-mounted tractor hitch. The cultivator includes a tined cultivation shaft and a hydraulic motor and drive mechanism for driving one end of the shaft. The cultivator includes an arrangement for selectively varying the speed ratio of the hydraulic motor and cultivation shaft, as well as for selectively changing the length of the cultivation shaft so that the width of the path of soil cultivation may be changed as desired. A pair of spaced, negatively angled ground-engaging surfaces are provided on the cultivator housing for urging the cultivator downwardly during forward movement thus providing a more uniform depth of penetration during soil cultivation.Type: GrantFiled: October 9, 1981Date of Patent: December 20, 1983Assignee: J. I. Case CompanyInventors: William J. Schlapman, Roger T. Gault
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Patent number: 4412587Abstract: A soil working machine has a working member with element blades and a scraping member that releases clods cut out by the working member so that the clods drop to the ground. Both of the members can be positively driven in the same direction about horizontal axes, but the scraping member can also be rotated by contact with the ground. Preferably, the blades are secured to support discs and extend axially of the working member. Scraping elements on arms of the scraping member project between the blades of adjacent support discs and have vanes which also extend almost axially. During rotation, the vanes are moved to intersect the paths of the blades and to remove the clods. Other forms of scraping members are described. The scraping member ensures that soil is wiped from the blades, to avoiding clogging of the working member and a consequent increased power requirement. Also, the cut clods are preferably replaced upside down by the action of the members.Type: GrantFiled: November 12, 1981Date of Patent: November 1, 1983Inventor: Cornelis van der Lely
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Patent number: 4386661Abstract: The low-profile, lightweight tiller of compact, uncluttered design is adapted to be rigidly mounted upon the rear, powered lifting links of a garden tractor so as to be raised and lowered by the latter between transport and ground-working positions. Driving power for the transverse rotor of the tiller is obtained by a direct drive connection with the power takeoff shaft of the tractor. A right angle gearbox located inside the open bottom housing for the rotor is supported by the rotor shaft itself and has an upwardly and forwardly directed input shaft that connects directly with a telescoping, universal joint drive line connection with the power takeoff shaft.Type: GrantFiled: September 8, 1981Date of Patent: June 7, 1983Assignee: Hesston CorporationInventors: James E. McCanse, Jugraj S. Dhaliwal
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Patent number: 4373590Abstract: Tilling apparatus disclosed has a rotor shaft with axially spaced multiple tine and hub assemblies having hoe portions of adjacent tines overlapping one another. The apparatus is constructed as a central section and has wing sections pivotally connected to the central section. A first pivot axis for each wing section is the same horizontal plane as the rotor shaft. A first link connects at its lower end to the wing section at the first pivot axis and at its upper end to the central section at a second pivot axis. A thrust link driven by a two-way cylinder moves the wing section about the first pivot axis and then about the second pivot axis. Each tine hub is made in two half-bodies supporting two tines at 90 degrees, with a recess to turn adjacent hubs 30 degrees to one another. Each tine has a bevel on the outer side and a smooth hard surface on the inner side.Type: GrantFiled: April 25, 1980Date of Patent: February 15, 1983Assignee: The Eversman Mfg. CompanyInventor: Michael C. Wittrock
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Patent number: 4360068Abstract: A rotary tool is disclosed which is adapted to be mounted on a machine having power drive means and movable over a field surface to produce furrows therein. The rotary tool comprises bit elements mounted in abutting relation from a peripheral surface of a disc and having compacts of hard wear resistant material which form the leading edge of the bit elements that are to engage the earth.Type: GrantFiled: March 13, 1980Date of Patent: November 23, 1982Assignee: Kennametal Inc.Inventors: Earle W. Stephenson, Clyde G. Hutzell
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Patent number: 4346764Abstract: An improved rototiller having angulated tines which include a first tooth fixed to one portion of the tine and a second tooth fixed to a second portion of the tine angularly disposed in relation to the first portion of the tine.Type: GrantFiled: September 2, 1980Date of Patent: August 31, 1982Inventor: Joe Rossi
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Patent number: 4326592Abstract: A tool for an earthworking machine in which the machine has a rotor with one or more support plates mounted in an axially distributed relation with each plate carrying one or more earthworking tools in circumferentially distributed relation. Each tool extends radially outwardly from the respective plate and at the outer end has an earthworking portion extending transversely to the plane in which the tool rotates. The forward working portion comprises a foremost impact region and a cutting edge that slopes rearwardly from the direction of rotation as the edges extend away from the impact region.Type: GrantFiled: June 8, 1979Date of Patent: April 27, 1982Assignee: Kennametal Inc.Inventor: Earle W. Stephenson
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Patent number: 4298070Abstract: A soil cultivating machine has a frame and a rotor journalled in the frame, the rotor being an elongated rotatable carrier with a plurality of cultivating members mounted along the length of the rotor. To simplify manufacture, the rotor carrier has a plurality of projecting mountings that extend substantially parallel to the axis of rotation. Plate or sheet cultivating members are fastened to the mountings to extend substantially at right angles to the carrier. To ensure penetration into the soil, each cultivating member has a curved outer circumference and is of knife-formation. A portion of the member extends substantially parallel to the normal direction of rotation of the rotor and a further portion is bent-over at an angle to this direction. Viewed from the side, successive cultivating members at least partially overlap one another.Type: GrantFiled: August 14, 1979Date of Patent: November 3, 1981Inventor: Cornelis van der Lely
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Patent number: 4290488Abstract: The invention relates to a public works machine constituted by a frame, by moving members with which the said frame rests on the grounds, by a device for driving the said moving members and, by a wheel provided with teeth for penetration into the ground, which wheel is mounted to rotate about a horizontal and transversal axis, and is coupled to a device for driving it into rotation whilst being adapted to be held in one position wherein the distance between the axis of the said wheel and the ground is less than the distance separating said axis from the free end of a tooth, whereas a synchronizing mechanism holds substantially constant the ratio of the rotation speed of the wheel to the linear speed of the moving members.The profile of the active face of each tooth is an involute profile defined by the substantial lack of pressure exerted by said profile on the ground during the rotation of the wheel.The invention finds an application in the production of channeling machines.Type: GrantFiled: November 14, 1979Date of Patent: September 22, 1981Inventor: Gilles Pelsy
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Patent number: 4280565Abstract: A soil cultivating machine includes a frame and a plurality of cultivating members in one or more groups journalled to said frame. Each group is driven to rotate about a horizontal shaft extending substantially transverse to the direction of machine travel. The groups of cultivating members are preferably arranged in at least two groups located side-by-side and pivotable about transverse pivots to move vertically against spring opposition to avoid obstacles. Each cultivating member is made of semicircular plates fastened to rings on the horizontal shaft and the plates can have cuts that divide them into segment parts. The outer working portions of the plates can be offset so that neighboring members work paths that overlap or are closely adjacent one another. Each group has respective side plates and a hood supported by the plates and the hood is interconnected to the frame with a spring-loaded rod.Type: GrantFiled: July 5, 1979Date of Patent: July 28, 1981Inventor: Cornelis van der Lely
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Patent number: 4278133Abstract: A motor powered lawn edger is converted to a lawn cultivator, a snow blower, or an ice chipper by removal of the lawn edging blade and its housing, and substitution therefor of a cultivating, blowing or chipping blade and an appropriate housing.Type: GrantFiled: July 3, 1978Date of Patent: July 14, 1981Inventor: Roland de Marcellus
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Patent number: 4267891Abstract: A cultivating machine has groups of soil working tines that are mounted on an elongated support that is driven to rotate about a horizontal axis. The tines are mounted in spaced apart groups and guide members converge at the rear of the groups to form ridges of worked soil. Each group includes tine units that are formed by opposing bracket portions clamped to the support. Strikers can be mounted on the support between groups of tines and the strikers are pivotable about respective horizontal axes spaced from the support's axis of rotation. The strikers are positioned to excise crop leaves or emerged growth on the ridges. Hoods and a grating ensure that the top layer of worked soil is free of debris. Screening plates having obliquely upwardly and inwardly inclined inner edges are located at the lower, front, outer corners of the hood to prevent the rearwardly adjacent time groups from displacing soil too far laterally.Type: GrantFiled: May 31, 1977Date of Patent: May 19, 1981Assignee: C. van der Lely N.V.Inventors: Ary van der Lely, Cornelis J. G. Bom
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Patent number: 4258635Abstract: A soil cultivation implement comprising a frame adapted to be coupled to a drive means, and said frame supporting, one behind the other in the direction of travel, first cutting means for cutting the ground substantially vertically, second cutting means for dividing the ground substantially horizontally and lifting it in a rearward direction, and a substantially horizontal rotor. The rotor is provided with power means from said drive means and is adapted to be driven rotationally and provided with prongs for penetrating the surface of the ground. The prongs are disposed helically on a rotor shaft in a least three rows staggered uniformly in relation to one another in the peripheral direction. The prongs are further substantially rectilinear and rigidly fastened substantially tangentially on the rotor shaft. Furthermore the prongs enclose in relation to the radii associated with their fastening points an angle of less than 90.degree.Type: GrantFiled: May 3, 1978Date of Patent: March 31, 1981Assignees: Claus Lutz, Bernhard Beha, Heinz Gernot Nieter, Helmut SteinhilberInventors: Claus Lutz, Bernhard Beha, Heinz G. Nieter
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Patent number: 4256183Abstract: A rotary tiller blade for mounting along with other similar blades, on a driven tiller shaft in a rotary tiller machine, which blade is configured and arranged to provide two cutting teeth per blade which enables a faster, smoother running and more thorough ground breaking action than any other tiller blade design.Type: GrantFiled: March 8, 1979Date of Patent: March 17, 1981Inventor: Martin G. Hanley
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Patent number: 4254834Abstract: A soil working machine has spaced apart groups of soil working tines mounted along the length of an elongated carrier that is driven to rotate through the soil in the normal direction of travel and about a horizontal transverse axis. A hood partially surrounds the groups and is positioned adjacent the front segment of the paths of the tines as they move worked soil upwardly. Portions of the hood, preferably adjacent the groups, are flexible i.e. canvas, rubber or resilient steel strips, and vibrate to shed worked soil. Intervening hood portions are rigid. Side plates adjoin the side edges of the hood and the plates can have apertures covered by flexible portions located at those areas exposed to sticky soil and these flexible portions can be arcuate in configuration.Type: GrantFiled: August 28, 1978Date of Patent: March 10, 1981Assignee: C. van der Lely N.V.Inventors: Ary van der Lely, Cornelis J. G. Bom
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Patent number: 4214633Abstract: A soil stabilizer comprises a self-propelled vehicle, a rotor having soil-working teeth, and a motor for driving the rotor. The motor is reversible to drive the rotor in opposite directions. The rotor includes tooth holders, each having generally oppositely directed tapered sockets. A tooth is received in one of the sockets so as to project in the direction of rotation. The rotor can thus be effectively utilized in either direction of rotation. The sockets are coplanar and intersect so that the zone of intersection forms an interruption in the tapered engagement between the tooth and socket intermediate the ends thereof to compensate for manufacturing variations in the tapered fit.Type: GrantFiled: October 11, 1977Date of Patent: July 29, 1980Assignee: Koehring CompanyInventors: Gary L. Jackson, Prabhakar B. Rao
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Patent number: 4198074Abstract: A structure for mounting a work implement on a tractor in which each of the right and left coupling means may be attached to the work implement in two alternative transversely reversed positions. This arrangement provides positional adjustment of the work implement in the transverse direction.Type: GrantFiled: August 18, 1978Date of Patent: April 15, 1980Assignee: Kubota, Ltd.Inventor: Toshio Ishiguro
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Patent number: 4152993Abstract: A cultivator-material dispensing combination includes a soil-working member that rotates about a horizontal axis forwardly, relative to the direction of travel, to displace soil over the top of that member to a screening at the rear thereof. A seed dispensing hopper has conduits that are supported on a hood that overlies the member and extends to the rear thereof. Material is metered from the hopper through outlets at the conduits' lower rear sides. Drive to the hopper is via a one-way transmission that is driven by a rear roller only when the combination moves forwardly. A further roller can be positioned to the rear of the first mentioned roller and a fertilizer hopper feed also driven to dispense material to the worked soil.Type: GrantFiled: August 24, 1977Date of Patent: May 8, 1979Assignee: C. van der Lely N. V.Inventors: Ary van der Lely, Cornelis J. G. Bom
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Patent number: 4151883Abstract: A cultivating machine has tines mounted on an elongated horizontal support that is driven to move the tines forwardly through the soil towards the normal direction of travel. The tines are in groups along the length of the support and each group has a number of pairs of opposing units. Each unit includes bracket portions having two rims and a tine is fastened to each rim. Opposing portions are bolted together to form a whole bracket that mounts four tines around the support. Each tine is a strip-shaped member that is hook-like in configuration with an inner straight portion and an outer soil working portion having a pointed tip. The inner portion has a series of holes along its length which can be releasably fastened to a respective rim in any one of a plurality of positions that change the working length of the tine. A front hood partially surrounds the tines and support and a rod grating is positioned at the rear of the tines. A rear hood is connected to the machine and located behind the grating.Type: GrantFiled: May 31, 1977Date of Patent: May 1, 1979Assignee: C. van der Lely N.V.Inventors: Ary van der Lely, Cornelis J. G. Bom
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Patent number: 4142587Abstract: Rotary cultivator having resilient vibration damper acting between the cultivator's drive and a reaction member, to absorb vibration generated by varying torque reaction exerted on the drive during use.Type: GrantFiled: September 19, 1977Date of Patent: March 6, 1979Assignee: Massey-Ferguson Services N.V.Inventors: John W. Woodward, Bruce H. Ashton
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Patent number: 4113027Abstract: A cultivating implement has an elongated, rotatable cultivating member that is driven to rotate about a horizontal axis. The cultivating member has a central support that defines its axis of rotation and the support is polygonal in cross-section with tines resiliently fastened to each side along the length of the support. Each tine has an outer, arcuately curved portion that is fastened to an inner portion through a coil having turns located to the rear and adjacent a succeeding side relative to the direction of its rotation. The outer portion has a replaceable blade at its outer free end and different blades can be secured to that free end. A further row of fixed but resilient tines is connected to the frame in front of the rotatable member and an additional row of resilient tines is pivoted to the frame, at the rear of the rotatable member.Type: GrantFiled: March 30, 1976Date of Patent: September 12, 1978Inventor: Cornelis van der Lely
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Patent number: 4079787Abstract: Drive shaft for a transmission system located at a point remote from the end of the rotor shaft of an agricultural cultivating machine, and having a crank portion, similar to that of a crankshaft, the gap of which coincides synchronously in rotation with the axially extending arms of said rotor shaft blades which are mounted in sets on respective planes adjacent each side of said transmission system, said synchronous operation being attained by appropriate setting of the gear ratio of this system in terms of the number of blades mounted in said planes.Type: GrantFiled: April 1, 1977Date of Patent: March 21, 1978Inventor: Angel Gallach Prat
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Patent number: 4072195Abstract: An edger blade uniquely designed to cut into the surface of the ground thus loosening a portion of the dirt, lifting the loosened dirt from the ground, and throwing the dirt to one side. The blade is adaptable for mounting on most home garden edgers powered by internal combustion engines. The blade has a central hub portion provided with a shaft hole adapted to permit the blade to be mounted on the edger shaft. Two arms extend from opposite sides of the central hub portion to form hoe portions that perform the hoeing operations of the invention.Type: GrantFiled: July 28, 1976Date of Patent: February 7, 1978Assignee: T & H Mfg. Co., Inc.Inventor: Elmer C. Carlson
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Patent number: 4068722Abstract: This combine manure-crushing and soil-mixing rotary machine adapted to be hitched to a tractor is provided with a tool carrier shaft operable at least at two different velocities, namely a higher speed for performing the manure-crushing operation and a lower speed for performing the soil-mixing operation; the change from one velocity and one mode of operation to the other is obtained by simply interchanging gear wheels and reversing the machine end hitched to the tractor. (FIG.Type: GrantFiled: February 2, 1976Date of Patent: January 17, 1978Inventor: Emile Le Guelennec
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Patent number: 4066130Abstract: A dirt shield for a rotary digger such as a roto tiller includes a shield member mounted outwardly of a rotary earthworking member rotatably mounted on the digger for keeping dirt away from plants adjacent the digger and enabling rows in a field or plot to be planted closer together. The shield member is mounted on a framework supported from the shaft of the digger and anchored to the frame of the digger by a suitable supporting element. In the conventional arrangement of a rotary digger with two or more earthworking members, a pair of shield members will be provided, one to each transverse side of the digger.Type: GrantFiled: June 22, 1976Date of Patent: January 3, 1978Inventor: Dedriuck Heppner
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Patent number: 4062408Abstract: A rotary tiller tine assembly in which a main shift has an end key and a shaft extension has at one end an end socket coupled to the main shaft key and at its other end a socket which receives a plug key with which outboard tines are interlockingly engaged.Type: GrantFiled: November 3, 1975Date of Patent: December 13, 1977Assignee: Gilson Brothers CompanyInventors: Edward W. Enters, Tommy A. Middlesworth
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Patent number: 4051902Abstract: A cultivating implement has one or more forward cultivating rotors that are driven to work the top soil. During this working, stones and debris are unearthed. At the rear of the cultivating members, one or more rows of soil working members are moved through the soil and these members are soil engaging members with edges that contact the stones and push the stones down into the subsoil. The soil engaging members can be discs with edges having projections and the discs can be driven to rotate in the same or opposite direction as the rotor. Alternatively, the soil engaging members can be bars that extend down into the soil. In either case, a sieve of rods or bars can be positioned behind the rotor to allow fine soil to pass while stones are guided downwardly in front of the fine soil. The lower ends of the soil engaging members can be interconnected with a horizontal shaft on which the discs are mounted. A protective hood overlies the rotor as well as the soil engaging discs or bars.Type: GrantFiled: January 5, 1976Date of Patent: October 4, 1977Inventor: Cornelis van der Lely
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Patent number: 4043399Abstract: A tooth affixed to the outward end of each tine of a roto tiller, the tooth being made of carbide steel, so as to be very durable, the tooth projecting forwardly at an angle ahead of the tine radius, attachment of the tooth being accomplished either by a metal clamp removably secured to the tine, or else by directly welding the tooth to the tine.Type: GrantFiled: August 11, 1976Date of Patent: August 23, 1977Inventor: Burk Guy Morrison
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Patent number: 4043402Abstract: A self-propelled soil stabilizer machine employs a heavy-duty single horizontal rotor for pulverizing and mixing soil it passes over. The rotor is driven by hydraulic motors which are mounted at the rotor ends and operated by a hydraulic pump (engine driven) which is hydraulically coupled to a hydraulic traction pump (also engine driven) which propels the machine. Each hydraulic motor is mounted for rapid removal and replacement thereof. Toward this goal, each end of the rotor is hollow, whereby the drive shaft of each hydraulic motor can be releasably accepted in one of the ends of the rotor in a spline connection therebetween. Overloads on the rotor system are automatically sensed by a closed-loop hydrostatic system and result in a direction in the speed of machine travel until the load on the rotor diminishes. A hydraulic rotary servo-valve and mechanical feed back system automatically controls the rotor to maintain it at a preset depth and provides a visual read-out of depth.Type: GrantFiled: March 3, 1976Date of Patent: August 23, 1977Assignee: Koehring CompanyInventor: Albert W. Nelson
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Patent number: 4026364Abstract: A cultivating machine has an elongated cultivating member that is rotatably mounted to turn about a horizontal axis that extends transverse to the direction of normal travel. A plurality of tined soil cultivating means is mounted on a support shaft of the member and that shaft defines the horizontal axis of rotation. Each cultivating means comprises a group of tines that is freely rotatable about a corresponding axis of rotation. The axes of rotation of the cultivating means non-perpendicularly intersect the shaft and are formed by stub shafts that are journalled on brackets fastened to the shaft. Upon rotation of the cultivating member about the shaft, the tines of successive cultivating means engage the ground and the cultivating means each rotate to work a broad path of soil. The group of tines extend at angles to the axis of rotation of each cultivating means and twos of the cultivating means are mounted in opposing pairs that are offset with respect to adjacent pairs.Type: GrantFiled: October 15, 1975Date of Patent: May 31, 1977Inventor: Cornelis van der Lely
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Patent number: 4005755Abstract: This invention is concerning a machine for rock removal and soil cultivation of newly broken or established farming areas. The machine picks up soil and rocks to a significant depth, and by a mixing and grinding process, breaks up sod, roots, and lumps of soil and by a classification process returns the size reduced material and small rocks to the ground, and retains the larger rocks.Type: GrantFiled: December 9, 1974Date of Patent: February 1, 1977Inventors: Even A. Bakke, Kaare W. N. Berg
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Patent number: 4002205Abstract: In abstract, a preferred embodiment of this invention is a device for forming and maintaining demarcation boundaries primarily in the field of plant husbandry. The device includes power driven sets of blades spaced from each other on a common axle, with the tips of the blades angled toward each other. The blades are arranged so that a wedge-shaped trench is cut, and the dirt effectively impelled and scattered.Type: GrantFiled: December 5, 1974Date of Patent: January 11, 1977Inventor: David C. Falk
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Patent number: 3998276Abstract: 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.Type: GrantFiled: November 4, 1974Date of Patent: December 21, 1976Inventor: Douglas M. MacMillan
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Patent number: 3995570Abstract: A cultivator has soil working blade members mounted on a horizontal shaft which is driven to rotate the members forwardly through the soil in the normal direction of travel. A baffle comprised of screen segments are mounted on the cultivator frame to partially surround the blade members. The screen segments are biased about respective pivots and a rod grating is connected to the baffle to extend downardly immediately to the rear of the blade members. The rear screen segment has V-shaped guides to ridge the soil. A hopper communicates with dosing outlets, each outlet being a nozzle device that extends between a pair of guides. Each nozzle device is pivotable to either one of two positions for planting tubers deep or shallow. A pair of rear wheels is connected to the rear of the frame and the wheels are drivenly connected to dosing conveyors leading to the outlets. An adjusting device is associated with each wheel to raise and lower the soil working blade members.Type: GrantFiled: April 15, 1975Date of Patent: December 7, 1976Inventor: Ary van der Lely
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Patent number: 3985185Abstract: A support device is mounted on the center frame of a garden tiller and extends beyond the opposite sides of the garden tiller. The support device is adjustable in the dimension corresponding to the width of the garden tiller. Adjustable mounting devices are adjustably affixed to the opposite ends of the support devices and are adjustable in position relative to the support devices. Each of a pair of shield plates is removably mounted in a corresponding one of the adjustable mounting devices. The shield plates are mounted substantially vertically in spaced parallel relation each at a corresponding side of the garden tiller and substantially perpendicular to the support device.Type: GrantFiled: February 6, 1975Date of Patent: October 12, 1976Assignee: The Raymond Lee Organization, Inc.Inventor: Lester V. Pierce
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Patent number: 3977476Abstract: An agricultural implement combination has a forward cultivator with soil working blades that rotate about a horizontal axis extending transverse to the direction of travel and a rear harrow having tined soil working members that rotate about upwardly extending shafts positioned in a row also extending transverse to the direction of travel. The cultivator and harrow each have a coupling member and their coupling members are linked by pairs of arms that cross one another when the implement is viewed from the side. A driving system includes a separate transmisson with change speed gearing for the cultivator and the harrow and the input shaft of the cultivator is connectable to a prime mover p.t.o. A telescope shaft connection bridges the two transmissions so that the blades of the cultivator and the tined members of the harrow can be driven from a single p.t.o. The harrow preferably has a supporting roller at the rear to smooth the soil worked first by the cultivator and then by the harrow.Type: GrantFiled: August 8, 1974Date of Patent: August 31, 1976Inventor: Cornelis van der Lely
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Patent number: 3963078Abstract: A soil cultivating implement, such as a rotary plow has soil working members mounted to revolve about an axis that extends transverse to the direction of travel. The soil working members can be tines or blades that are positioned to enter the soil in unison, lift sliced portions of soil and deposit same on the ground to the rear of the plow. The soil working members are mounted in offset relationship at locations about the axis of rotation to minimize "drag and snatch." The soil working members can be turned in addition to being revolved about the axis of rotation as a part of a rotor and more than one row of soil working members can be mounted on the implement. Scrapers, stationary or movable, can be positioned to cooperate with the soil working members to shed the soil from these members.Type: GrantFiled: November 19, 1973Date of Patent: June 15, 1976Inventor: Cornelis van der Lely
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Patent number: 3960219Abstract: A soil cultivator has at least one rotor mounted for rotation about a horizontal axis and rows of rigid soil working tines are secured on the rotor to be driven through the soil in a direction opposite to the travel direction of the cultivator. The tines can be curved with their free ends oriented to the rear with respect to their direction of movement through the soil. Stationary tines can be affixed in front of the rotor so that the rotor tines are moved between the stationary tines. Two rotors can be mounted side-by-side on a common shaft or axis of rotation and the shaft journalled in side plates having edge rims. A row of rotatable disc-like supporting members is arranged zig zag on a beam and the beam has arms that are adjustably connected to the cultivator frame at the rear of the rotor. Projections on the bottoms of the members induce rotation thereof. The rotor or rotors can also be supported by an elongated roller having a helical rib.Type: GrantFiled: April 22, 1974Date of Patent: June 1, 1976Inventor: Cornelis van der Lely
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Patent number: 3957122Abstract: A rotary plough has one or more rotors rotatably mounted to be driven via a power take off about a horizontal axis that extends transverse to the direction of travel. Each rotor has a central support and axis of rotation and two spaced apart and oppositely positioned rotatable soil working members, each of which has a soil working support with two rows of tines. A driving connection is established between a P. T. O. and a shaft within the central support which turns each soil working member through a control mechanism. The control mechanism can be a pinion gear arrangement or a chain and sproket combination that turns the tine supports of the soil working members so that a transmission ratio is established to cause the tines to rotate more or less about their supports while also turning about the central support. Earth lumps are cut and lifted by the tines and then moved to an inverted position back to the dug out cavity.Type: GrantFiled: March 4, 1974Date of Patent: May 18, 1976Inventor: Cornelis van der Lely
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Patent number: 3954143Abstract: A rotary plough has a rotor that rotates about a horizontal axis defined by a central support. The rotor comprises three spaced apart groups of soil working tines and each group includes a row of tines mounted on arms that extend radially with respect to the support. Each row of tines is independently connected via a chain transmission to a toothed pinion on the central support so that as the entire rotor turns about the support, each row of tines is also revolved about a horizontal axis. The central support is rotated by a further sprocket and chain transmission connected to a gear box with a P.T.O connection. The central support is surrounded by a second rotatable support on which radial scrapers are mounted. The gear box is connected to rotate the entire rotor as a whole and the three groups of tines in the same direction so that the tines are moved through the soil rearwardly with respect to the normal direction of travel.Type: GrantFiled: May 20, 1974Date of Patent: May 4, 1976Inventor: Cornelis van der Lely
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Patent number: 3937285Abstract: A cultivator has two elongated rotors rotatably mounted on horizontal axes and in driving engagement with driving means to work the soil at different depths. A forward rotor is secured to the frame and a ground engaging roller is mounted in front of the rotor. A rear rotor has a central multi-sided support on which spacer rings and soil working plates are slideably received. The rear rotor is vertically adjustable with respect to the forward rotor so that the soil can be worked at different layers in one pass.Type: GrantFiled: April 16, 1974Date of Patent: February 10, 1976Inventor: Cornelis van der Lely