Harvesting machine

A harvesting machine comprising means for feeding seed plants with seeds such as grain into the machine, a threshing unit and a sieve set for threshing said seed plant and for separating the seeds from the rest of the vegetable material, means for recovering the seeds from the machine and means for removing the residual vegetable material characterized in that in the apparatus

• the threshing unit is formed of a drum having an outer surface and of beaters or flails, which drum is conical and is fitted in the apparatus in a vertical position so that it widens from the bottom towards the top, and the flails are installed on the outer surface of the said drum;
• the sieve set being formed of at least two sieves which are at least partly conical and are nested coaxially around each other and the threshing unit a threshing space defined between said drum and said sieve set;
• a conical shroud, and the threshing unit and the sieve set are fitted inside the shroud, and in between the sieve set and the shroud there is provided a collecting bin, whereby the seeds are gathered to the bottom part of the collecting bin, where an opening is provided for removing them.