Importance

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Abstract

Improvements are disclosed for independent adjustment of the gauge wheel, disc hillers, stabilizer disc and, if desired, the rear, central sweep for an agricultural cultivator unit. The adjusting mechanism includes a screw jack which is easily accessible from the top of the cultivator for setting the adjustment of vertically telescoping inner and outer tubular sections, and a clamp for maintaining the setting once the adjustment is made. Improvements in the disc hiller structure itself include an indicator plate located at the top of the shank on which the disc is mounted for indicating the angular adjustment of the working angle of the disc, and a forged shank having a circular cross-section at the top, and a flattened portion at the bottom to provide strength but flexibility. Improvements are also disclosed for mounting the sweep to the distal end of the main beam, including a screw jack and clamp arrangement of the type used to adjust the disc hillers and stabilizer disc, a rigid clamp using a single bolt and two cast clamp plates, and a spring cushion mechanism permitting the sweep shank to rotate rearwardly and upwardly when an obstruction is encountered.

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First Claim