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Scientific American, Vol. 83, No. 15 (October 1900) (1900)

leaf 3

An illustration from Scientific American, Vol. 83, No. 15 (October 1900), 1900, leaf 3
rators and high^power triple expansion.engines, the ' exactly the same shade as the rest. I have been con- Mr. Lamb writes : largest of which are of European make. sulted from time to time by leather manufacturers, "During the past few months there has been con- A three-phase alternator which is of… … opinion, bookbinding leathers and volts. The speed of the revolving leathers for furniture purposes field magnet is 95 revolutions per THREE-PHASE ALTERNATOR, WITH 1,000 HORSE POWER ENGINE. should not be dyed with minute, and the frequency . the acid colors together at this speed is 50 periods per…

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