| 摘要 |
A tubular cylindrical housing encloses an eccentrically mounted rotor provided with radial slots receiving the inner ends of slideable vanes, the outer ends of which are connected to wiper bars which ride along the interior peripheral surface of the housing. Opposed rotatable sealing plates disposed between the ends of the rotor and the ends of the housing are concentric with the interior of the housing and carry the ends of the wiper bars. Gear trains synchronize the rotation of the discs and rotor.
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