Abstract: The machine includes a frame adapted to move along spaced ridges planted with crop plants, frame support runners engaging the furrows between the ridges, a pair of transverse rows of weeding implements carried by the frame for movement along the ridges and furrows, the implements of one row disposed on one side of the plants and the implements of the other row disposed on the other side of the plants. Each row is transversely displaceable by a double acting hydraulic ram relative to the frame. The rams are controlled by an operator supported by the frame in a position to have a direct view of the weeding implements. Each implement is free to move up and down independently of the remaining implements in order to follow the ground contour. The implements of any one row can be raised together out of working position. These weeding implements can be earth working discs and/or thermal weeders.

Abstract: Closely spaced cultivating tools are mounted along a tool bar and each tool may be locked in a raised position relative to the ground or may be lowered into floating engagement with the ground during use of the implement. A small tool bar is mounted parallel to a larger tool bar and the cultivating tools are slidably clamped on the small tool bar. Improved mounting structure allows each cultivating tool to be mounted on the small tool bar without having to slide each cultivating tool onto or off of the tool bar from the ends of the tool bar and without having to disassemble the mounting structure. The tool bar assembly includes row indicia for indicating where the tools are to be located along the tool bar and which tools should engage the ground and which tools should be raised away from the ground for various cultivating operations on row crops. A tool angling mechanism allows selective adjustment of the angle to the line of draft of each tool without the use of wrenches or other hand tools.

Abstract: A cultivating machine such as a powered vehicle has several ground engaging hoes and is arranged for moving these hoes relative to a row of plants to be cultivated. The cultivator includes a device for elevating the hoes with respect to the ground and for moving at least two of the hoes in oppositely disposed sideward motion while they are engaged in the ground so as to enable them to cultivate the area between the individual plants in a given row. Pneumatic piston and cylinder assemblies are used impart sideward movement to the sidewardly movable hoes and suitable control valves connect the pneumatic piston and cylinder assemblies with a source of compressed air carried by the vehicle.

Abstract: A support is connectable with an agricultural machine, and a plurality of agricultural tools is provided which are mounted by mounting elements on the support so that they can be adjusted relative to the support. A single arresting element is provided which arrests all of the tools in their respective positions. The tools have mounting portions extending into a passage in the support and either the passage itself or an auxiliary element in the passage has a wedge face to engage the tool mounting portions.