| 摘要 |
A device for use in varying the effective crosssectional area of an outlet opening of a dispensing unit for nested containers, e.g. paper cups, comprises at least two shutter members, pivotally mounted on equispaced pivots of a support means at the outlet end portion of the unit to define the outlet opening. The members are mounted for movement to vary the size of the opening; adjustment means is mounted for rotation in operative connection with the shutter members whereby to move the members to adjust the size of the outlet opening. Adjustment of the are of the opening is readily accomplished so that the unit can be adjusted to accommodate cups of different dimensions.
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