Franklin Mine

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• This is referred to as a Second-Motion Friction gear driven hoist. The grooved wheel attached to the iron shaft was operated by the engine. It was raised off of the drum by steam power, which would cause the drum to stop rotating. Later on, when hoisting technology advanced, newer hoists were referred to as Direct Acting hoists" to distinguish them from this older type friction gear driven hoist."
5/11/2015 10:41:25 PM by Anonymous