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 etc., 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 ment by an electromagnetic machine. a light frame covered with yarn or any McGLASHANS PURIFYING AND EVAPORATING HOT AIR REGISTER. suitable fibrous material, which, by its ca- A Nonsensical Patent. The lower…
Patents · Graphite · Iron · Cylinder · Scientific American · Water · Cotton wool · Baxter steam · Foot pounds · Patent office · Steam engine · Horse power · Mechanical equivalent · Ten times · Willow leaf
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