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Scientific American, Vol. 77, No. 17 (1897) (1897)

leaf 7

An illustration from Scientific American, Vol. 77, No. 17 (1897), 1897, leaf 7
manufacture of later. The thermometer was raised to a height of 1,530 lating fan-shaped type, having an elongated aperture, cold-drawn seamless tubing. feet and left there ten minutes, and when it was drawn working on a pivot from one side to the other in oppo- down it registered 47 degrees, while… … long lever to the other side. Inthis way up to machines of 75 tons weight. The total output of tubular goods for the year a slight side pressure on the push button is 200,000 tons. quickly operates the shutter without a The raw material—coke, limestone and jar or difficulty. A second pivoted lever…

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