| 摘要 |
A line feed system of the invention comprises a framework having a first end and a second end. At least one conveyor is carried on the framework. The conveyor comprises a drive system and a cart configured to engage the drive system. In one embodiment, the cart has a base that engages the drive system and a carriage that is movable, e.g., extensible and retractable, with respect to the base. In another embodiment, the drive system is extensible and retractable. The cart can also include one or more lift devices that can be raised and lowered with respect to the carriage.
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