Abstract: There is described a replaceable wear part device (22) for attachment on a forward edge (2) on a work tool (1), where at least a portion of the forward edge (2) is formed of a wear part holder (21), as the wear part (22) is provided with a first sliding surface (222), and the wear part holder (21) is provided with a second sliding surface (213), which essentially is arranged as an extension of said first sliding surface (222), and the second sliding surface (213) is provided with a forward sliding edge surface (214) defining the sliding surface (213) against the wear part (22), where on the first sliding surface (222) is arranged an eminence (224) arranged to be able to lead a material flow (F) away from at least a portion of the sliding surface (213) of the wear part holder (21).

Abstract: A replaceable wear part for mounting on a leading edge of a working tool, the leading edge and the wear part having co-operative guide formations extending generally perpendicular to the leading edge and which provide a socket and projection type of slidable inter-fit whereby the wear part can be driven by a force extending generally perpendicular to the leading edge in order to take-up a working position in which it is secured against displacement from the working position by frictional interengagement between the guide formations on the wear part and the leading edge, and without need for threaded or other separate removable fasteners.

Abstract: A replaceable wear part (13, 22, 22a, 32, 41) for mounting on a leading edge (12, 27) of a working tool (10, 27, 30), said leading edge and said wear part having co-operative guide formations (16, 18) extending generally perpendicular to the leading edge and which provide a socket and projection type of slidable inter-fit whereby the wear part can be driven by a force extending generally perpendicular to the leading edge in order to take-up a working position in which it is secured against displacement from the working position by frictional inter-engagement between the guide formations (16, 18) on the wear part and the leading edge, and without need for threaded or other separate removable fasteners.

Abstract: A retainer is disclosed for preventing accidental release of a knock-on earthworking tool from an adaptor secured to the tine of an agricultural implement. The retainer, which is integrally formed from a single piece of metal, comprises an anchoring portion which is retained inside a bolt hole of the of the adaptor and a tail portion which extends between the anchoring portion and an aperture in the stem of the earthworking tool. The tail of the retainer has an upturned end which catches in the aperture in the stem of the earthworking tool when the stem is wedged over the adaptor in its normal working position, thereby preventing accidental dislodgement of the earthworking tool during use.

Abstract: An adjustable ridger for a cultivator includes an elongated ridger frame adapted to mount to the sweep member of the cultivator. The frame has a top bracket with an elongated slot extending therethrough. The slot has a width and a longitudinal axis. A plurality of setting holes in the top bracket are spaced apart along the longitudinal axis of the slot, each setting hole having a diameter greater than the width of the slot. A bottom bracket is spaced apart from the top bracket on the frame and has a guide hole therein. An elongated pull pin, having a stepped outer diameter with first and second diameter portions, is insertable through the slot in the top bracket and into the guide hole in the bottom bracket to act as a hinge pin. The second diameter portion is larger than the first diameter portion and yet smaller than the diameter of the setting holes. At least one wing pivotally mounts on the pull pin between the top and bottom brackets.

Abstract: A tapered adaptor (10) disposed at a free, leading end of a cultivator shank (S) is arranged to co-operate with a blocking member (27). The blocking member (27) defines forwardly facing abutment surfaces (28, 29). They engage a rear edge portion (54) of the socket (46) of a sweep when the sweep is subjected to a hard impact which would otherwise force the socket beyond the position required for a firm wedging frictional grip with the adaptor (10). Thus, the undesired displacement excessively beyond the required grip position is prevented to enable removal of the socket (46) on exchange of the sweep by a hammer blow. A retainer pin (32) is resiliently held in a transverse groove (31) by the nose (35, 36) of a pair of flat springs. Thus the free movement which might result in loss of the pin 32 is prevented while allowing relatively easy withdrawal of the pin when the sweep is to be knocked off the adaptor. Several alternative embodiments are mentioned.

Abstract: A deep tillage earth engaging implement having a frictional attachment to a tine of an agricultural machine in which the attachment portion incorporates a socket with a cross-section tapering toward the earth engaging portion. The foot of the tine is of complementary shape.

Abstract: A tillage tool which includes an elongated shank having a bifurcated forward end. A protective overcap point is secured to the bifurcated forward end of the shank by means of a trapezoidally cross-sectioned key which interlocks in the bifurcation slot. The overcap point further includes a pair of laterally opposed, downwardly extending side skirt portions which extend adjacent the side edges of the bifurcated leading end of the shank. A centrally located rib projects from the front of the overcap to adjacent the rear side thereof on the upper side of the overcap, and is of increasing width from its forward end to its rearward end, so that its divergent, opposed sides function to deflect dirt away from the center line of the shank portion.

Abstract: An earth engaging implement and tine construction comprising a tine having bolted thereto an adaptor having an upper surface externally tapered in cross section, an elongated slot extending through the adaptor to receive a bolt head, and the lower surface of the adaptor comprising a rediused portion and a flat portion. An earth engaging implement includes an earth engaging portion and an attachment portion, the attachment portion comprising a tapered socket of complementary cross sectional shape to the upper surface of the adaptor, and the earth engaging implement being secured to the adaptor by a wedging frictional grip on to the upper surface. The adaptor has an angle of inclination of the upper surface thereof when mounted on the tine which corresponds to the angle of attachment portion of the earth engaging implement when it is oriented for ground engagement.

Abstract: A tool for tilling the soil, such as a sweep, chisel or drill, which includes an elongated earth parting blade or shank having an upper end and a pointed lower end, and having a tapered, undercut dove-tailed slot extending from the pointed lower end longitudinally upwardly in the blade. A hard metal wear insert is mounted on the pointed lower end of the blade. The insert includes an overlay plate which is of complementary configuration to the blade point, and a locking key which is wedge-locked into the slot on the blade.

Abstract: In the agricultural industry, one cultivator wheeled cart cultivator implement has a vertical ripper blade for use in ripper cultivating the soil usually between rows of growing crops. The vertical blade has its front edge sharpened. There is usually a lower point to the blade. Such sharpened front edge portion of the blade which is drawn through the ground, as well as its lowermost point, wear out rapidly, as a result of cultivating in gravelly or hard soil, and have to be replaced often on comparatively small use. Such replacement heretofore required the use of complicated bolt securement of parts, at the front edge and lower ends of the cultivator ripper blade, and the parts to accomplish that replacement are needlessly numerous and complicated and expensive.

Abstract: A plough shank having a rounded leading edge portion with a leading surface, a trailing portion, a web connecting the trailing and leading portions, an attachment mechanism at the top of the shank to enable attachment of the shank to a plough frame so that the leading surface is inclined by 60.degree. to 80.degree. to the horizontal, and a construction at the bottom of the shank to enable the attaching of a digging point thereto. The attachment mechanism may comprise a lobe integral with the shank and received in a clamp for attachment to a tool bar. The clamp may include two pivotably connected portions with an interconnected spring or hydraulic system.

Abstract: A soil cultivating implement has a row of tined soil working members extending transverse to the direction of travel. An implement-supporting and soil-working cage-formation ground roller is arranged behind said soil working members to be rotatable about a substantially horizontal axis. The roller has a plurality of relatively spaced apart carrier discs fixedly interconnected by a plurality of tubular elongate elements that are wound helically around the axis of rotation of the roller. When light and/or dry soil is to be cultivated, it is desirable that additional elongate elements should be placed in the skeletal cylindrically curved ground-engaging surface of the roller. A chosen number of auxiliary elongate elements can be arranged between the fixed elongate elements quickly and these elements are easily detachable and re-connectable.

Abstract: A cultivating implement has an elongated frame portion that mounts a row of rotors, each rotor having an upwardly extending shaft and a lower tine. The lower shaft end is a flattened horizontal part with a threaded stub shaft that extends through a central hole in a matching horizontal tine fastening portion. A nut secures the fastening portion to the shaft end part and the nut is surrounded by a space partly defined by side cheeks of the fastening portion. Preferably, the inner side of the tine is concave and the recess formed therein merges into the space. A lug of the fastening portion fits into a recess of the shaft part to further secure the tine to the shaft. The soil working portion tapers downwardly from a curved intermediate portion to a lower tip that can be replaced.

Abstract: A detachable, self-sharpening digging shoe for deep tillage shanks is shaped, sized and disposed in a manner to provide the proper angle of attack and to minimize resistance to its movement through the soil such that the movement is not only smooth but incapable of creating that kind of soil turbulence which normally results in substantial wear on critical areas of the shoe and the shank.

Abstract: A subterranean plow blade for mounting onto a tractor in a clamping fashion for fast and easy mounting and removal. A blade holder is affixed to a tractor, and clamp pieces are pivotly mounted on the holder with one piece thereof engaging the blade and the other pieces forcing the first one piece tightly against the blade for holding same. The holding pieces are adjustably interrelated to accommodate variations in piece and blade sizes. The blade is arranged with a leading edge which penetrates the ground and has its intermediate portion sharpened while the portion above and below that intermediate sharpened portion is blunt or unsharpened, all for maximum functioning in moving through the ground. Also, the blade has notches on its leading and trailing edges for the ready mounting with the blade holder.

Abstract: A plough share made of metal having at least two spaced tongues pressed out of the metal and projecting rearwardly at an angle, the two tongues being adapted to engage in complementary holes formed in the frog of a plough. The plough share also has holes therein, these being formed by the tongues being pressed outwardly therefrom. These holes are covered by a reinforcement plate, which is attached to the side of the plough share opposite to the side to which the frog is to be attached.

Abstract: A spacer spool for a disc section of a disc harrow for preventing relative rotation between the spacer spools and the adjacent disc blades. Each of the spacer spools comprises a central portion having end portions extending outwardly from the opposite ends thereof. Each of the end portions is provided with an annular rim portion which is complimentary in shape to the adjacent disc blade. The center section of the spool is provided with a central opening for receiving an elongated shaft which is rotatably supported by the disc harrow frame. A lug is provided on each of the end portions of the spacer spool between the central opening and the annular rim portion. Each of the disc blades has a central opening formed therein for receiving the shaft and has a bolt opening formed therein spaced outwardly from the central opening. A bolt is positioned in each of the bolt openings and has its head positioned adjacent one side of the disc blade and a nut element positioned adjacent the other side of the disc blade.

Abstract: Two embodiments of a replaceable cutting edge assembly for earthmoving buckets, each assembly including a plurality of cutting edge sections arranged along a leading edge of the earthmoving bucket floor with digging teeth overlapping the junctures between the cutting edge sections, the cutting edge sections being configured for attachment to the bucket floor, for example, by means of bolts, while trapping and holding the digging teeth in place in order to facilitate replacement of individual portions of the assembly while also adapting the bucket for use with a single elongated cutting edge without the digging teeth. In one embodiment, the cutting edge sections and teeth are designed to provide a flush bottom surface suitable for finish work even with the teeth in place. In the second embodiment, additional means are employed to secure both the digging teeth and cutting edge sections in place along the leading edge of the bucket floor.