| 摘要 |
The invention concerns agricultural implements, commonly known as sifting screens or stone-removing and clod-breaking machines for separating elements which are found in beds such as stones, clods or roots. More precisely, it concerns sifting screens comprising cutting means (5, 6, 6'), separating means (8-13') and a device for conveying (14, 14'), towards the furrows and/or into a container, elements which do not pass through the separating means (8-13'). The inventive machine is characterised in that the dimensions of the cutting means (5, 6, 6') and of the separating means (8-13') are adapted to treat a zone equivalent to or larger than one and a half beds. |
