Abstract: Device to stir and feed seeds for pneumatic distributors of sowing machines, which is included in a first chamber (31) for the receipt of seeds (18), a continuously rotatable body (27) being included between a drive shaft (26) that sets in rotation a perforated disk (21) and the sidewall (35) of the first chamber (31), the rotatable body (27) comprising at least two substantially filiform, elongate, resilient projections (28) extending substantially so as to have to become substantially arcuate in order to be able to rotate together with the rotatable body (27), the projections (28) cooperating with a space (30) for the entry of seeds into the first chamber (31) for the receipt of seeds.

Abstract: A connecting-rod system particularly for mowers, wherein a crank, supporting a couple of rods, is linked to the driving shaft by means of a clamp fastened to said shaft by means of a threaded ring, and wherein the mutual positioning of crank and clamp is achieved by means of a key.

Abstract: A connecting-rod system for mowers in particular, wherein, for actuating elements driven by alternate motion, there are used rods mounted on a crank which can be linked to the drive shaft by fitting a crank pin into a seat in the shaft itself. On the crank pin there is at least one flat wall intended for properly positioning the crank pin itself by interacting with a corresponding flat wall provided in said seat.

Abstract: A stirrer-feeder for pneumatic seed distributors includes a rotating body which is placed on the inside of a seed-holding tank and which is provided with flexible extensions that gliding next to holes provided on a distributor disk which is also in the tank. The extensions have the function of detaching from the holes knots of seeds that may have formed, in such a manner as to make only one seed engage in each hole.