[Trade Journal] Publication: The Electrical Engineer New York, NY, United States |
Trade Notes and Novelties AND MECHANICAL DEPARTMENT. · · THE AMERICAN MARBLE & TOY MFG. CO.
The American Marble & Toy Mfg. Co., of Akron, Ohio, has recently discovered and secured the control of a natural inexhaustible bed of porcelain clay, specially suited for insulators. The porcelain clay burns a hard, vitreous, glassy, inside body, that resists all moisture, ink, acid, etc. The company now turns out as a specialty electric insulators and tubing. The tubes in white, or dark brown, as desired, are quoted at about one-half the price of ordinary unglazed porcelain. · · |
Keywords: | American Marble & Toy Manufacturing Company : Tube |
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Researcher: | Bob Stahr |
Date completed: | April 15, 2011 by: Bob Stahr; |