| 摘要 |
A rock-crushing apparatus is provided with a stationary annular member in which a rock-crushing mechanism is supported. The rock-crushing mechanism has at least two pivoted rock-crushing shanks which are successively impacted by an eccentrically mounted member. The eccentrically mounted member is rotatably driven by a motor and flywheel assembly. The shanks may be biased outwardly so as to trap rocks between the shanks and the stationary member whereupon the successive impacts from the eccentrically mounted member progressively crushes said rocks.
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