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Scientific American, Vol. 40, No. 6 (1879) (1879)
leaf 10
cylinder is adjustable vertically for more or less cut, as may be desired, and is covered by an elastic substance which giyes its surface a peculiar flexibility, and keeps a comparatively large surface of sandpaper constantly in contact with the material being smoothed. This flexibil- ity of the… … has patented a Chimney Cowl orVentilator design- or of Philip Medart, 107 Market strect, the same ed to deflect the natural currents of air so that a city. © 1879 SCIENTIFIC AMERICAN, INC.Internet Archive · Public domain (published before 1931). Free to use for anything.
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