| 摘要 |
<p>Fraction collecting apparatus for receiving the liquid output of a fractionating column and separating the same in proportion to time increments of uniform duration. A disc having a plurality of equi-size openings therein, which openings are spaced uniformly along a spiral path. A carriage having an arm overlying the disc that supports an outlet from the fractionating column. The carriage is moved radially as the disc is rotated so that the arm and the nozzle mounted thereto follow the spiral path. Disc rotation is effected by a drive wheel mounted on the carriage which drives the disc such that the tangential speed of the particular opening aligned with the nozzle is constant, thereby assuring constancy and uniformity of the time increment that each opening in the disc receives liquid from the fractionating column.</p> |
