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Scientific American, Vol. 42, No. 6 (February 1880) (1880)

leaf 7

An illustration from Scientific American, Vol. 42, No. 6 (February 1880), 1880, leaf 7
tolerable circulation when the weather will admit of open- of the box, and pound and wash the clothes. ing the windows and doors to allow the heated foul air to This tubing may lead to the place to be ventilated, and An improved medicine spoon, invented by Mr. Barclay T. there blow the air through… … nel, connected with the pipe, wheels and provide a suitable GREEN'S SYSTEM OF VENTILATION. arrangement for the gas to C, an injecting nozzle, A is placed, and connected escape, at the least cost, and by a pipe, D, with a pressure air pump in the shaped opening, and the three per cent of compressed…

Patents · Air · Cotton · Iron · Sizing · Patented · Scientific American · Feet · Cast Iron · Aqueous solution · Patent issued · Foul air · Strong aqueous · Emery wheel · Screw cutting · Steam piston · Fresh air

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