Inventors at work, with chapters on discovery (1906)
Iles, George, 1852-1942 · New York, Doubleday, Page & company · leaf 201
Welsbach mantle. turned to other metals, of high melting points, and with resultsso remarkable that we may expect some of them to be in generaluse in the near future. Tantalum, a rare and costly metal, hasbeen found to give a candle-power with as little as two watts and,in specially favorable… … Tantalum lamp. Osmium, in the hands of Dr. Auer von Welsbach, reduces thisfigure to 1.5 watts. Dr. Hans Kuzel, of Baden, Austria, has em-ployed filaments of tungsten in lamps whichhe claims demanded only one watt per candle.From among these new lamps it seemshighly probable that as soon as methods…
Inventions · Inventors
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