Crusher - Wikipedia A crusher is a machine designed to reduce large rocks into smaller rocks gravel sand or rock The earliest crushers were hand-held stones where the weight of the stone provided a boost occurred under muscle power as the appli ion of force concentrated in the tip of the miners pick or sledge hammer driven drill bit.
NIHF Inductee Eli Whitney Blake and the Stone Crusher Machine National Inventors Hall of Fame Inductee Eli Whitney Blake developed the crushing stone machine creating a more efficient method for road construction.
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Health and Safety in Stone Crushing - Pan American Health A Word for the Owners: Managing Health and Safety in Stone Crushing.. 10. A.2 heavy physical work and manual handling of heavy loads or hand-arm vibration by power tools 2. prevent access to the hazard e.g. by guards around machinery or rails ; not to apply too much water to the material as the.
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