Abstract: The invention relates to a device in a combined drill for spreading seed and fertilizer simultaneously and comprising a container. The latter is divided by a wall into two compartments of which one is intended to take up the seed and the other to take up the fertilizer. The two compartments are connected by channels to drill coulters or spreaders for covering and spreading, respectively, of the two materials. The two openings of the container (11) are provided with swingable guide plates (30,31,36) to increase the size of the openings and thus make it possible to fill the container, for instance from a load vehicle.

Abstract: A frame of a reversible plow having plow shares that are directed to the right and to the left. The frame is turned by means of a piston connected to a turning shaft of the frame, the turning of the cylinder being controlled by an automatic reversing valve. The valve has a fixed housing and a movable shaft. Peripheral grooves are present in either the housing or shaft through which hydraulic oil is supplied from one side of the piston to the other side thereof.

Abstract: A plough having a share with an accompanying tip that is removably secured on the bottom front portion of the share. The tip is so constructed and arranged that it is adjustable on the plough share so that the extent of life of use of the tip can be significantly increased. Thus, the maximum use of a plough share tip may be effectuated.