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Scientific American, Vol. 41, No. 26 (December 1879) (1879)

leaf 3

An illustration from Scientific American, Vol. 41, No. 26 (December 1879), 1879, leaf 3
spended. and subsequently an annual sum, until she reaches twenty- altogether. Mr. Patrick Gallagher, of Eureka, Nev., has patented an one. She then becomes entitled to a fixed income from the The annexed engraving represents the duplex air com- improved fire escape for attachment to buildings,… … . Conn., has patented an improved spirally around the cylinder from DUPLEX AIR COMPRESSOR. device for connecting the mirror the center toward the ends. By standards or supports with a bureau, this arrangement the air cylinder is elation, which is surrounded by gardens and a park. Should in such…

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