Abstract: A coupler for a helical pile system is described. The coupler includes at least two sections of square tube. A first section is nested within and affixed to the second section. The first section may further include an inner width by which the first section is configured to receive two pieces of rectangular bar stocks of a helical pile system. The at least two sections each include at least two pairs of aligned through holes, for receiving first and second bolts. By the first bolt and second bolts, the two pieces of rectangular bar stock may be coupled. The first section may thus transfer torsion between the two pieces of rectangular bar stock, such as when screwing the helical pile system into the earth.

Abstract: Method and device for harvesting grasses, such as e.g. in the form of “springs” and “plugs”, in which across the ground and at some distance over it, a shaft (2) is moved transversely to its longitudinal direction and is rotated simultaneously. The shaft is provided with mutually spaced supporting plates (7) for receiving milling cutters (8) across its length, said cutters extending almost in parallel to the shaft (2). The shaft (2) is supported by a frame (1) to be coupled to a tractor, in which means (13-19) have been provided for adjusting the shaft at the desired height above the ground. The milling cutters (8) of successive supporting plates (7) can overlap at least partly. The supporting plates (7) can also be provided with aerating knives (24), which can be fixed in a certain position. Further, a discharge conveyor or car and sieving facilities can be provided.

Abstract: A transfer case is provided with a range unit, an interaxle differential, a clutch assembly and a power-operated actuation mechanism. The range unit includes a planetary gearset driven by an input shaft, and a synchronized dog clutch assembly for releasably coupling one of the input shaft or an output component of the planetary gearset to an input member of the interaxle differential. The interaxle differential further includes a first output member driving a first output shaft, a second output member operably driving a second output shaft. The clutch assembly is a multi-plate friction clutch operably disposed between the first and second output shafts. The power-operated actuation mechanism includes a range actuator assembly, a ball-ramp clutch actuator assembly and a motor assembly operable to control actuation of the range actuator assembly and the clutch actuator assembly.

Abstract: A weeder includes an elongated shaft having a predetermined length and a longitudinal bore, a gripping mechanism provided at an upper end portion of the elongated shaft, a chuck mechanism provided at a lower end portion of the elongated shaft for pinching weeds, an operating lever mechanism for actuating the chuck mechanism, the operating lever mechanism provided at an axial portion of the elongated shaft which is adjacent the gripping mechanism, and a towing wire inserted in the longitudinal bore of the elongated shaft and coupling the chuck mechanism and the operating lever mechanism.

Abstract: A tubular pipe helix system (10) includes a coupler (16) which has a sleeve (60 or 70) which is affixed internally or externally of, and in overlapping relationship with, an end (36) of one shaft (12) to create an enhanced wall thickness (W3) thereat and which is to be received in a collar (52) affixed to one end (40) of another shaft (14), with the two shafts able to be connected together by a single bolt (50) extending through the sleeve (60 or 70), the end (36) of the shaft (12), and collar (52) so as to transmit high torque without the need for multiple bolts.

Abstract: A foldable trencher boom assembly including a first boom portion pivotally connected to a second boom portion by a hinge. One leg of the hinge is connected to the first boom portion while the other leg of the hinge is connected to the second boom portion. When the boom portions are aligned, fasteners secure the hinge to maintain the colinear relationship between the boom portions. In the initial phase of folding, the fasteners are removed thereby permitting the boom portions to pivot relative to each other. The digging boom is conveniently folded by securing the digging chain to one of the foldable boom portions and employing the trencher drive motor as an actuator to achieve the folding action. With the foldable trenching boom of the present invention, an overall decrease in the machine length is attained for transport and maneuverability. Further, when the folded trencher boom is in its transport position, the machine height is decreased and a better distribution of weight is achieved.

Abstract: Apparatus for excavating hard soils comprising support means, an endless chain capable of movement relative to said support means, drive means for moving said endless chain, means integral with said endless chain operable to contact said hard soils, and means for concentrating the force exerted by said soil contacting means against said hard soils at a specific point along said endless chain while said endless chain is being moved relative to said support means.

Abstract: A retractable in-row tiller device is adapted for mounting on a movable vehicle and for tilling the ground around and between objects in a row. An outrigger arm with a rotary tiller mounted on its distal end is retracted inwardly and extended outwardly by a trapeze-type control arm which amplifies the velocity and magnitude of reciprocal motion produced by a hydraulic ram to move around and avoid objects encountered in the row. Both manually and automatically operable controls are included respectively to allow an operator to retract and extend the tiller out of and into the row as desired and to cause the tiller to be retracted and extended out of and into the row automatically upon encountering an object in the row. Manual control is also provided for the operator to override the automatic retraction control.

Abstract: The disclosure is primarily directed to the reduction of excavating tooth and chain drag which makes possible the manual transport and manual propulsion of a ditcher through the earth to commercially acceptable specifications.

Abstract: An apparatus for injecting soil stabilizing materials into the ground along endless paths which are substantially transverse to the forward movement of the apparatus over the ground.

Abstract: A method and apparatus for stabilizing the soil, wherein materials are injected into the soil in closed paths along substantially straight lines.

Abstract: A cultivating machine has one or more working members that are driven to rotate about upwardly extending axes. Each working member is connected to a drive transmission to turn and, spaced apart soil working members mounted for free rotation about respective axes, are moved through the soil. At least two of the soil working members are different from one another and capable of workingthe soil in different ways. One member can be a group of tines that are freely rotatable about an upwardly extending axis and an adjacent member can be a disc that rotates about a horizontal axis. Each member includes a stub shaft that is journalled in a universal mount so that the members can be released and exchanged to meet varying soil conditions. The mount has a pivot connection and a setting device to retain the soil working member at various working angles. Also, the stud shaft is adjustable within a sleeve of the mount.

Abstract: A soil cultivating machine has soil working members that are driven about upwardly extending axes. Each working member has radial arms and a tined cultivating rotor is pivotably connected to the outer end of each arm. Each cultivating rotor is freely rotatable about an upwardly extending axis and an adjustment device can be set to vary the position of the cultivating rotor about the pivot connection to its corresponding arm to change the working positions of the tines. The cultivating rotor can use different tines depending on the condition of the ground being worked.

Abstract: A soil cultivating machine has a frame beam with a forward supporting member and a rear supporting member. The frame beam and the supporting members are all elongated and extend transverse to the direction of travel. The opposite lateral ends of one supporting member are linked to the corresponding ends of the other member by curved coupling members and both supporting members are movable about substantially vertical axes in directions transverse to the normal direction of travel of the machine. Tined cultivating members are mounted on each of the supporting and coupling members for free rotation about upwardly extending axes.