| 摘要 |
<p>A direct drive conveyor comprising an endless belt (100, 208, 400), stretchable through its length, at least one drive pulley (102, 202, 408) wherein one ortne belt and the pulley has teeth (106, 306, 402) and the other of the belt and the pulley has recesses (104, 406) adapted to receive the teeth as the belt wraps around the pulley to an exit point (170,216,416), and means (132, 136, 138) to minimize friction between the belt and the drive pulley.</p> |
