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Scientific American, Vol. 63, No. 2 (1890) (1890)
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vice whereby lating the current to adapt it to the work an elevator car, in ascending or descending, to be done. Several sizes are made, rang- MAXCY’S BASEBALL GAME, upon reaching a floor, will automatically ing from that of a dynamo operated by foot unbolt the shaft door, and when it leaves the… … rope is carried up over the frame and over the two © 1890 SCIENTIFIC AMERICAN, INC.Internet Archive · Public domain (published before 1931). Free to use for anything.
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