| 摘要 |
A device for cyclically rearranging a stack of rectangular sheets may fail due to uncontrolled displacement of an individual sheet to be exchanged. To avoid such malfunction, the device includes springs (200a, 200b) which maintain alignment of that individual sheet with thrust-supporting stops (66). The stops may be designed to sense the thrust to which the individual sheet is subjected so as to permit or to prohibit exchange. |
