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Triumphs and wonders of the 19th century, a volume of original, historic and descriptive writings showing the many and marvellous achievements which distinguish an hundred years of material, intellectual, social and moral progress (1901)

Boyd, James Penny, 1836-1910 · Philadelphia, A. J. Holman & co · leaf 614

An illustration from Triumphs and wonders of the 19th century, a volume of original, historic and descriptive writings showing the many and marvellous achievements which distinguish an hundred years of material, intellectual, social and moral progress, 1901, leaf 614
machines that they instantly interpret the complicated signals, anddrop the cage with such exactness that the car of ore is run from the trackin the level to the track on the cage, almost without a jar. Nor is the hoist the only large machine necessary in the equipment of themodern mining plant,… … 578 TRIUMPHS AND WONDERS OF THE XIXth CENTURY on the surface, driving the pumps after the Cornish style, though it would bedifficult to see much of the pump of 1801 in this magnificent machine. Witha ten-foot stroke it conveys the power to the pumps through a walking beamweighing a hundred tons. In…

Progress · Inventions

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