| 摘要 |
<p>The magnetic seed treating device has a tubular member which defines seed passageway. A permanent magnet, which has a longitudinal axis extending between its opposite poles, is secured coaxially within the passageway. The magnetic field is thus disposed concentrically in the passageway about the magnet. The passageway may have a constricted portion between the magnet and the tubular member. In one embodiment the internal surface has a converging section in an annular portion of the passageway about the magnet so as to form a constriction whereby the seed is funnelled toward the magnet.</p> |
