| 摘要 |
Blades on a rotating grinding plate force waste against a stationary grinding ring. The blades are mounted on radially aligned guides on the grinding plate, allowing the blades to move freely inwardly and outwardly between opposing stops. The blades are thrown outward by rotation of the grinding plate. A receding face on the blades cooperates with the grinding ring for moving the blades inwardly and for forcing waste against the grinding ring.
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