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Scientific American, Vol. 26, No. 11 (March 1872) (1872)

leaf 15

An illustration from Scientific American, Vol. 26, No. 11 (March 1872), 1872, leaf 15
Shop,and are nowmanutacturinglourdiflFerentsizesof EmeryGrinding Machines. The application of Emery In solid form to all the v arl-oub branches of manufacture has now been reduced toa science, and those who hitherto have considered SolidEmery Wheels a species of experimental and fancygoods, should… … CHAMPION SPRING MATTRESS.^Thelatest and best improvement. The softest, easiest,ipest, most popular, and most durable spring berl Inmarket. Sold by all leading dealers. Wo stock completewithout it. Wholly composed of splendid watch springtempered steel springs, so united that the pressureis equally…

Patents · Iron · Tuns · Machine · Heat · Specific heat · Wrought iron · Wood flume · Scientific American · Second third · Hot air · Gun cotton · Transverse strain · Beet sugar · Portable steam

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