The Technical World Magazine, Volume 4Technical World Company, 1906 |
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Page 576
... thorium upon another sand called cerium , both taken from monazite sand found in Brazil and shipped to Germany for refinement , which furnishes the unexplained secret of the brilliant light of the gas mantle . These sands come from that ...
... thorium upon another sand called cerium , both taken from monazite sand found in Brazil and shipped to Germany for refinement , which furnishes the unexplained secret of the brilliant light of the gas mantle . These sands come from that ...
Page 577
... thorium to I per cent of cerium gives the best results . Starting with pure thorium , the mantle gives practically no light . The candle- power rapidly increases as traces of cerium are added , until the maximum is reached . After this ...
... thorium to I per cent of cerium gives the best results . Starting with pure thorium , the mantle gives practically no light . The candle- power rapidly increases as traces of cerium are added , until the maximum is reached . After this ...
Page 578
... thorium and cerium solution , with the cotton burned off , leaving the two metals fused together through the heat of a Bunsen flame into a consolidated ashen tube . As all who have handled incandescent mantles know , they are extremely ...
... thorium and cerium solution , with the cotton burned off , leaving the two metals fused together through the heat of a Bunsen flame into a consolidated ashen tube . As all who have handled incandescent mantles know , they are extremely ...
Page 579
... thorium and cerium welded to- gether by heat . This process is called " burning off . " The flame of the atmos- pheric burner begins operations on the gathered portion at the top of the mantle , and the cotton gradually burns down- ward ...
... thorium and cerium welded to- gether by heat . This process is called " burning off . " The flame of the atmos- pheric burner begins operations on the gathered portion at the top of the mantle , and the cotton gradually burns down- ward ...
Page 580
... thorium and cerium are extracted and possibly shipped back again to the same factory . The factory is paid about $ 7 a pound for the thorium and cerium con- tained in these refuse particles . The mantles are now put on supports , and ...
... thorium and cerium are extracted and possibly shipped back again to the same factory . The factory is paid about $ 7 a pound for the thorium and cerium con- tained in these refuse particles . The mantles are now put on supports , and ...
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