| 摘要 |
A drum defining a center axis is journalled from a support for rotation about its center axis through the utilization of resilient means permitting the axis and drum to gyrate about a center position of the axis responsive to dynamic imbalance of the drum during rotation thereof. The drum includes a plurality of circumferentially spaced liquid-passing openings and a plurality of liquid receptacles are mounted from the drum for receiving liquid therein from the openings. The receptacles are mounted from the drum for shifting between liquid retaining positions and liquid dumping positions and stationary receptacle position shifting structure is mounted from the support and the receptacles are mounted on the drum for normal disposition in either the liquid receiving positions or the liquid dumping positions. The receptacles include structure engageable with the receptacle position shifting structure operative to shift the receptacles from one position thereof to the other position thereof responsive to gyration of the center axis about said center position. The liquid receiving receptacles function to retain liquid passing through the openings on the lighter side of the drum or to dump liquids therefrom on the heavier side of the drum and in this manner the dynamic imbalance of the drum may be substantially eliminated.
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