| 摘要 |
A materials separator apparatus comprising a base supporting a ramp type of materials receiving surface sloped longitudinally and transversely with respect to the base for directing commingled dielectric items and electrically conductive items of nonferromagnetic materials deposited on its upper end portion along a fall path extended longitudinally and transversely downward of the surface, and a planar series of substantially parallel permanent bar magnets supported in contiguous rows in a plane substantially parallel to the material receiving surface and sufficiently close thereto for establishing along the surface a spatially alternating array of oppositely directed static magnetic fields which extend in substantially parallel relationship transversely of the surface at an oblique angle with the fall path of the commingled items. As a result, there is exerted on the electrically conductive items an electromagnetic force having a laterally directed component of sufficient magnitude for deflecting the electrically conductive items laterally out of the fall path and transversely upward of the materials receiving surface while the electrically conductive items are travelling longitudinally down the materials receiving surface.
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