Abstract: Systems and methods for disturbing soil are described. The systems may include an elliptical motion mechanism, a shaft coupled to the elliptical motion mechanism, wherein the elliptical motion mechanism is configured to move the shaft in an elliptical path, and a hoe blade coupled to the shaft such that the hoe blade in an initial position is proximate to a soil surface, and wherein a face of the hoe blade is located in a plane intersecting the plane of the elliptical path, and wherein the soil-disturbing apparatus is configured to receive a signal to operate the elliptical motion mechanism, and in response to receiving the signal, operate the elliptical motion mechanism so the hoe blade is moved in an elliptical path, and whereby a portion of the hoe blade elliptical path falls below the soil surface to disturb the soil.

Abstract: A soil loosening device connected with a pulling means provides for an intensive deep loosening of compact mainly agriculturally used soils and has for each loosening furrow two oppositely driven teeth in tandem arrangement, equipped with blades which form a joint blade surface subdivided into blade partial surfaces wherein the forward partial blade surface and the rear partial blade surface perform alternately with the forward surface first cutting the soil and the rear surface then lifting the soil which has been cut.

Abstract: A spider wheel for a rotary incorporator for one pass incorporation of chemicals or small grains in previously tilled soil. The incorporator includes two rows of aggressive, large diameter spider wheels supported from a toolbar for rotation in the soil about axes offset at an acute angle to the transverse direction. The spider wheels are to provide good incorporation and a smooth seed bed without hilling or chemical banding. A smaller diameter, depth limited spider wheel on each outermost end of the implement feathers the effect of the angled wheels. The spider wheels include tines having soil working surfaces for good mixing and soil moving action and a large gullet area for good trash shedding and throwing characteristics.

Abstract: An oscillating harrow having a pair of harrow rings which can be raised and folded easily for transport. Each ring includes a pair of opposed, central segments which are disposed below a ground-travelling frame, and a pair of opposed side segments which are mounted on the central segments for swinging between positions extending laterally and upwardly with respect to the frame. A pair of wing members attached to opposed sides of the frame, adjacent opposed side segments, are shiftable between operative and transport positions. The wing members are coupled to associated side segments through cables which are slack when the members are in their operative positions. As the wing members are swung from their operative to their transport positions, slack in the cables is taken up, causing the side segments to be drawn toward the associated wing members.

Abstract: A soil working machine has elongated carriers that extend transverse to the direction of travel, one behind the other. Eccentric mechanisms are attached to each carrier to move tools depending from the carriers, back and forth in directions parallel to the direction of travel. The eccentrics have upper supports connected with resilient controls and lower supports of unequal lengths so that the tools work different paths. A front levelling member is connected to the frame via a parallelogram linkage and the rear carrier has a row of tines. A supporting roller is connected to the frame by arms each of which has two portions. The portions can be pivoted or slid towards and away from one another so that the roller is also moved towards and away from the carriers. Also, the arms with roller are vertically adjustable and fixable in position.

Abstract: A double, transverse, parallel tool bar is attached to the three-point hitch of a tractor. A depending shank is welded to each tool bar extension for mounting the rod weeder. Each shank has a forwardly and downwardly extending hard faced chisel tooth and a rearwardly extending skid which controls depth of penetration of the rod weeder. A chain and sprocket drive assembly is connected to the center shank and driven through the PTO of the tractor. The other shanks each have contained therein a bearing having a spare aperture through which a square rod weeder bar is disposed. The outermost shanks each have a strap which is bolted over the ends of the rod weeder bars to hold them in place and provide for easy replacement thereof. A plurality of cleaner bars are disposed 1/16th of an inch behind the high cam position of the rod weeder and fixedly connected between the shanks for both cleaning the rod and providing lateral support for the shanks. An additional bar is mounted in an offset position behind each shank.

Abstract: An implement has a forward row of soil working members that have flat blades and the blades are periodically raised and lowered to initially coarsely break the soil with pivotal motions induced by respective eccentrics mounted on a horizontal shaft. The members have respective polygonal linkage connections to the frame. Further soil working members that include elongated bars with tines are moved to and fro to work the upper layer of coarsely broken soil. The bars are pivoted about upwardly extending pivots and an eccentric reciprocates the bars in relative opposite directions. A trailing roller is linked to the bars and to the frame supporting the bladed members. The bars and roller are interconnected to the frame sides by parallelogram linkages that can be fixed to regulate the working depths of the blades and the tines.

Abstract: A tilling machine has a frame with a row of tines or rotatable tined soil working members in a row that extends transverse to the direction of travel. A drive is connected to rock the tines or rotate the tined members during operation. The same drive has an eccentric that links an elongated tilling member to the machine at the rear of the tines. The tilling member is pivoted to the frame and movable through a closed but non circular path by the eccentric and elongate elements of the tilling member are moved through a renoform path to both work and level ground previously worked by the tines. Adjustments to change the working levels of the tines and/or the tilling member can be made by rearranging the linkage connections to the frame.

Abstract: An agricultural machine has a frame and a rear tilling member connected to the remainder of the machine by a linkage that has at least four pivots. Driving means from a prime mover p.t.o. is connected via at least one eccentric and the linkage to reciprocate the tilling member in horizontal and vertical movements to work the top soil. Tines fixed to a supporting beam, that is pivoted to the rest of the frame, are also moved by the driving means in advance of the tilling member to work the top soil and subsoil.

Abstract: An implement having an elongated tool extendable into the subsoil to break up the hardpan and open the subsoil for moisture and tap roots of plants. The tool has orbital motion generated with power driven eccentric structures coupled to the tool. Power is applied to the eccentric structure with a gear box driven with a hydraulic motor. Flywheels are connected to the eccentric structures and the gear box drive shafts. Links connected to the tool and a frame carry a rolling coulter disc operable to cut a slit in the soil ahead of the tool. A hinge assembly having elastic members mounts the frame on a carriage. In one form, the carriage is pivotally mounted on a draft beam of a moldboard plow and biased to an earthworking position by a hydraulic cylinder. In a second form, the carriage is a plate which forms a part of a hitch assembly for connecting the implement to a three-point hitch of a draft tractor.