| 摘要 |
Material is unwound from a roll and deposited in layers by a reciprocating carriage supporting the roll. The roll is mounted on a rod supported in two carriers attached to the carriage and the rod is transversely displaced to maintain the edges of the unwound material in predetermined locations. The carriage carries a motor which drives a threaded spindle to impart transverse movement to the rod, the supports for the rod being secured to the carriage either fixedly or pivotably. |
