Inside Out Library · Explore

Scientific American, Vol. 25, No. 4 (1871) (1871)

leaf 7

An illustration from Scientific American, Vol. 25, No. 4 (1871), 1871, leaf 7
of the signals is effected by means of a siphon contact with, and takes up water, whilst particles of dust, Among the articles to be seen are several doors with highly of capillary glass tube, about two inches long, the shorter ete., floating in the air, are effectually intercepted. The end of… … electrophorus or replenisher, kept in move The screen or dust arrester, I, Fig. 3, is REGISTER. ment by an electromagnetic machine. a light frame covered with yarn or any suitable fibrous material, which, by its ca- A Nonsensical Patent. capillary attraction, will constantly absorb water. The lower…

Internet Archive · Public domain (published before 1931). Free to use for anything.

More pictures from Scientific American, Vol. 25, No. 4 (1871)

More like this