Blake jaw crusher

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The original crusher of jaw type. A crusher with one fixed jaw plate and one pivoted at the top so as to give the greatest movement on the smallest lump. Motion is imparted to the lower end of the crushing jaw by toggle joint operated by eccentric. This machine, or some modification of it, is used for reducing run-of-mine ore or coal to a size small enough to be taken by the next crusher in the series during the first stage of crushing. Liddell; Newton, 1

Source: Dictionary of Mining, Mineral, and Related Terms


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