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Scientific American, Vol. 48, No. 13 (March 1883) (1883)
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mere trifle, while 50 bushels of animal charcoal ^N^ ^^. would cost about $150. The sand will last for many years through the small valves, P, which are distributed at regu- without deterioration, while the charcoal, which while fresh, lar, intei-vals in the bottom of the filter bed.' From these is… … ia£ HYATT mtmi, m. 2. (ConHnued on ptge I8S.) dition by the portion of sand © 1883 SCIENTIFIC AMERICAN, INCPatented · Filter · Sand · Patents · Plow · Water · Sewing machine · Improved · Coal dust · Improved car · Steam plow · Hyatt filter · Inches stroke · Cubic feet · Inches diameter · Pig iron · Feed water
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