Abstract: A holder for an agricultural tool. The holder has a shaft with first structure at a first location for mounting at least one agricultural tool to the shaft. The shaft has a portion that is movable guidingly in first and second opposite directions relative to a support on which the holder is mounted. A second structure is integrally formed as one piece with the shaft to limit movement of the shaft portion in one of the first and second directions relative to a support on which the holder is mounted.

Abstract: An agricultural tool assembly (21) disclosed is usable on a variety of implements in place of shovels, blades, tines or sweeps and on novel cultivating or crop root undercutting implements and the like. Assembly (21) includes a rotary disk (23) mounted on a lower end of a rotary spindle (25). An offset mount for the spindle includes a shank (41) adapted to be received in the vertical slot of a clamp (22) and a sleeve (45) offset from the shank for rotatably supporting the spindle. The sleeve is connected to the shank, using a bifurcated portion comprised of spaced plates (47, 48) connected to the sleeve with a lower pivot member (52) and an upper fastener (58) extending through arcuate slots (61 and 62) in the spaced plates. The disk may be tilted at a selected angle or set horizontally and for some applications may be set to release in the event the blade strikes an obstruction. A cultivator implement has front and rear disk gangs (108, 109, 114, 115) and a rear centered tool assembly (21).

Abstract: A cultivating implement is intended to loosen the soil without significant distrubance of the soil surface. The implement has a frame and at least one soil working tool mounted on the frame.The tool includes a blade with a lower inclined portion and an upper upright portion which portions are interconnected by an intermediate portion.The inclined portion is moved edgewise through the ground and lies at an acute angle to the vertical to lift soil lying above the inclined portion. The intermediate portion is located in use at or below ground level.The intermediate portion may comprise a bend or the blade may be curved over the intermediate and inclined portions.The blade may be preceded by a disc arranged to cut a slot in the ground to be entered by the blade. The disc is rotatable about a horizontal axis.

Abstract: A double disc attachment for farm implements operating to present a debris-cleared area ahead of the furrow opener of the implement, has a peripherally notched disc with one of the discs spaced from and leading the other. Each disc is rotatably carried by its own independent, rearwardly-extending bracket, and each bracket has its own independent, vertically extensible support, with the supports and the brackets laterally spaced. In two embodiments the supports are disposed entirely behind the discs, and in all forms each support is adjustably secured to its own independent means for separate mounting of its disc unit on the implement. The mounts are also laterally spaced, and in one form the discs are located between the brackets.

Abstract: A double disc, debris-clearing assembly has a suspension member for releasable attachment to a farm implement and on which is rigidly secured an upright standard. A guide rigid to and depending from the suspension member beneath the standard has a tiltable channel element releasably mounted thereon and provided with an upwardly-extending strap for varying its height along the guide. An adjustable connection is utilized between the strap and the standard. A pair of interconnected brackets carried by the channel element are provided with disc mounts which may, in turn, be adjusted to vary the positions of the discs relative to each other and to their brackets. Accordingly, the suspension member, the standard, the guide, the strap and the channel element are common to the bracket unit and, therefore, the discs.

Abstract: A rotary harrow has a plurality of soil working members each of which has a support and a central shaft that forms the axis of rotation of said member. Each support has a holder at each end thereof and a downwardly extending tine secured in each holder. The holder is preferably inclined so that its top is located further from the central shaft than its bottom and also leads in the direction of normal rotation relative to the holder bottom. The holders are sleeves with integral screens and the sleeves receive the fastening portions of tines. The holders together with the support form tine mountings configured to minimize damage from stones and other debris. The tine fastening portions are held inclined to the vertical as well as soil working portions which are bent first towards one another then away, so that the lower tine tips are located further from the shaft axis than are the corresponding fastening portions.

Abstract: Disclosed is a tilling apparatus characterized by a regulating drive connection between the towing tractor drive axle and the tiller shaft, the tiller tines having a modified arcuate configuration which provide a pocketed, rather than a furrowed or channeled, tilling depth profile.