| 1. | The two compartment timbered main shaft has partly caved at the surface.
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| 2. | Both the main shaft and the secondary shaft contained wooden stairs and ladders.
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| 3. | The main shaft bearings were too short, resulting in excessive wear.
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| 4. | In 1990, its main shaft snapped, idling the boat's massive propellers.
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| 5. | They cut her main shafts and bearings with high temperature metal cutting torches.
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| 6. | The main shaft in Bakers Creek was sunk 610 metres below the surface.
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| 7. | On July 17, the main shaft reached under the Confederate position.
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| 8. | The Monroe, however, reversed direction of its main shaft to subtract.
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| 9. | Here it was transmitted by a main shaft across the mill.
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| 10. | In 1878, the main shaft was deepened to reach the Old Coal seam at.
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