[Trade Journal]
Publication: The Electrical Engineer
New York, NY, United States
vol. 20, no. 375, p. 50,51, col. 1,1
Trade Notes and Novelties
AND MECHANICAL DEPARTMENT.
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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.
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