Abstract: A planting assembly is disclosed which comprises a tubular support arm for carrying a plowshare and for conveying seeds pneumatically. The front end of the support arm is pivotally mounted about a horizontal pivot pin perpendicular to the direction of displacement of the assembly. A spring acts in a vertical plane to exert a substantially constant force against the plowshare to drive it into the ground. The pivotal mounting of the support arm comprises a spring-loaded open-ended yoke for permitting rocking of the support arm in a horizontal plane when the horizontal couple exerted against the support arm exceeds a predetermined value. The front end of the tubular support arm is connected to a supply of air entrained seeds and the rear end to a cyclone separator separating the seeds which proceed through a conduit to the furrow cut by the plowshare, the main stream of entraining air being exhausted to the atmosphere.

Abstract: The invention relates to a mobile machine including a frame provided with a stabilizer comprising a connecting rod articulated on the frame, a shoe articulated on the connecting rod and a member for adjusting the position of the shoe with respect to the connecting rod and frame. The invention further includes two stops for limiting the rotation of the connecting rod with respect to the frame.