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Gilberton, Pennsylvania. A Chance coal separator in operation in the Saint Nicholas breaker. The cone vat, filled with sand…
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Gilberton, Pennsylvania. A Chance coal separator in operation in the Saint Nicholas breaker. The cone vat, filled with sand and water and kept in solution by agitation, causes the coal to float above the rock, allowing the rock to be taken from the bottom of the cone. Bits of timber and other debris float on top and are skimmed off. Sourced from the Library of Congress.

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Gilberton, Pennsylvania. A Chance coal separator in operation in the Saint Nicholas breaker. The cone vat, filled with sand and water and kept in solution by agitation, causes the coal to float above the rock, allowing the rock to be taken from the bottom of the cone. Bits of timber and other debris float on top and are skimmed off. Sourced from the Library of Congress.

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