| 摘要 |
A succession of channel bars having widths that lie within a range below a predetermined maximum bar width is fed to a pickup station with the bars generally coplanar, parallel, and in edge contact. In the station a group of the bars is picked up by a pair of pivotal combs which are then pivoted about axes perpendicular to the group of bars to space the bars apart on centers that themselves are spaced apart substantially by the maximum bar width. Then the picked-up and arrayed bars are deposited in a stacking station substantially without changing the spacing between them. Another group of such bars which, however, numbers one less than the preceding group, is similarly picked up and arrayed at the maximum-width spacing, then is inverted and deposited between the previously deposited bars. These steps are repeated to form a neat stack.
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