Mechanical transport for economical handling of output of the coal mine Installation at the Boston Breaker of the Delaware & Hudson Co., Plymouth, Pa., U. S. A. A 272-foot steel truss supports a monobar conveyor, carrying coal at the rate of 4 tons per minute from cars to top of breaker. Link Belt Engineering Co. from the Article THE PRACTICAL MANACEMENT OF MINING OPERATIONS. By John E. Hardman from The Engineering Magazine Devoted to Industrial Progress Volume XX 1900 - 1901 The Engineering Magazine Co

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Location: USA
Photo credit: © Historic Illustrations / Alamy / Afripics
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