| 摘要 |
An internally powered conveyor roller, of the type used for driving a convey or one direction, and for preventing movement in opposite direction and having a drive roller for driving the conveyor medium, an internal drive motor for driving the roller , a one-way rotation device permitting rotation of the roller in one direction, and for preventing rotation in the opposite direction, and the one way rotation means being moveable between engaged and disengaged positions, and when in the disengaged position, being inoperative to prevent reverse rotation of the roller.
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