Title: Soil cultivating machines

Abstract: A soil-cultivating machine has an elongated frame that extends horizontally and transverse to the direction of travel. A row of adjacent soil-working members are mounted on corresponding upwardly extending shafts which are geared to a common drive shaft and the members are driven in relative opposite directions to work a broad path of soil. Alternate soil-working members are slideable along beams of the frame so that debris does not jam the drive connections. The drive to the soil-working members includes an imput shaft to a gear box, which can comprise a reduction gear, and an elongated drive shaft that extends parallel to the frame and along which the slideable members are displaceable. The corresponding gears to the working members includes a pinion transmission on the drive shaft which is slideable within limits defined by an elongated key arrangement. Compression springs bias each slideable working member to a normal central position.

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Inventors: van der Lely, Ary (Maasland, NL)

Application Number: 613901
Filing Date: 1975-09-16
Publication_date: 1977-07-19
Assignee: C. van der Lely N. V. (Maasland, NL)
Primary Class(es): 172/49.5 172/59, 172/117, 172/125, 172/253, 172/264, 172/706, 172/709
Other Classes:
US Patent Ref:

RE25237	Sep, 1962	Heeren	172/59.
518363	Apr, 1894	Brookens	172/59.
696262	Mar, 1902	Palmer	172/59.
1656838	Jan, 1928	Smith	172/709.
2521417	Sep, 1950	Sefcovic	172/59.
2725811	Dec, 1955	Hollis	172/709.
3367425	Feb, 1968	Heeren	172/59.
3616862	Nov, 1971	VAN DER Lely	172/59.

Other Refs:
Primary Examiner: Marlo, George J.
Assistant Examiner:
Attorney: Mason, Mason & Albright