ABSTRACT

The vibrator separator imparts an electro-magnetic vibration to a slightly tilted, solid level surface of selected roughness. As a single layer of seed move across the surface, the intense, short-stroke vibration (as opposed to oscillation) causes some seed to lose contact with the surface sufficiently for them to move downhill to a lower discharge spout. Seed which can maintain good contact with the surface move across or slightly upward across the surface, and discharge through a different spout (Figures 36.1, 36.2).