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Scientific American, Vol. 62, No. 18 (May 1890) (1890)

leaf 10

An illustration from Scientific American, Vol. 62, No. 18 (May 1890), 1890, leaf 10
pulleys, over which passes a belt, also pass- poses, is particularly designed for use in connection ing over a large pulley on the upper end of a rear ver- with steam pumps. tical shaft, motion being communicated to the latter shaft by a bevel gear and pinion from a transverse Syiitlietic Indigo.… … tickers, etc., and wherever it is desirable to keep an RIDLEY'S GRINDING MACHINE. and afterward with alcohol." exact record of date and time to the minute. It is one That this blue substance was really common of the most reliable and effective devices that has come ner as to enable the operator…

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