The Americana: An Universal Reference Library, Comprising the Arts and Sciences, Literature, History, Biography, Geography, Commerce, Etc;, Of the World (Classic Reprint) - Tapa blanda

Sinopsis

Excerpt from The Americana: An Universal Reference Library, Comprising the Arts and Sciences, Literature, History, Biography, Geography, Commerce, Etc;, Of the World

With this accomplished, with new machinery and appliances devised by Mr. Acheson and the problem of competition thus fairly solved, nothing less than a new art had to be created to adapt the new material to existing uses. Some different varieties of abrasive wheels are now made for the regular trade, besides a multitude Of other articles. Emery, though still much Cheaper, has been largely superseded in granite polishing by carborundum, thanks to the latter's Six to eight times greater efficiency, and in 1898 a factory for coating paper and Cloth with carborundum was added. Thus, one by one every department of the abrasive industry was exploited, and by the failures of the various manufacturers to utilize the new substance, the Carborundum Company's plant has become the only establishment In the world covering the entire field.

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