| 摘要 |
A vibratory bowl feeder for cylindrical objects is improved by having an upwardly inclined trough that is uninterrupted and has a generally uniform cross section approximately in the shape of a conic section, preferably that of a parabola or hyperbola. Cylinders that are at least nearly as long as their diameters are accurately jiggled into end-to-end alignment in such trough without any jamming, mis-alignment, or rejection, and a single size trough can accommodate many sizes of cylinders.
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