Patent ID: 7104206

Claim:
An agricultural plough including: a longitudinally extending support member having a forward portion to be attached to a vehicle for towing; a pair of axles attached to the support member and extending laterally from opposite longitudinal sides of the support member for defining a pair of laterally extending rotational axes, the axes being located on opposite sides of the support member, in a plane extending transversely normal to the support member and at acute angles longitudinally so as to extend rearwardly, the acute angles being 8 to 10 degrees to a plane extending normal to the support member to diverge rearwardly; plough discs respectively supported on the axles to rotate about the axes with the discs and axles being configured so that the discs converge rearwardly and downwardly, the discs being displaced rearwardly from the forward portion; a wheel attached to the support member and rotatable about an axis generally transverse of the support member, the wheel being located rearwardly of the axles; and means connected to the support member and to be attached to the vehicle for urging the support member downwardly so that the discs are urged into soil and the wheel is urged into contact with a surface of the soil rearwardly of the discs so that upon forward movement of the vehicle with the discs in the soil, the discs form respective grooves and a ridge in the soil between the grooves with the ridge being engaged by the wheel to urge the soil of the ridge to cover seeds in the grooves.