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1940 - insulators receiving a shower bath of glazing solution


CD 1963052 E&MP 23.005

Electric Insulating and Insulators

Dec. 6, 1940

Forty-five thousand porcelain insulators in a rush order for a Northwestern national defense power line must take a trip around this rotating machine at the Derry, Pa., Works of the Westinghouse Electric & Manufacturing Company.

At the left [right], insulators are shown receiving a shower bath of glazing solution, after which they pass before three infrared lamps which dry them on both sides in a few minutes.

These are special Westinghouse lamps which give off an abundance of the penetrating infra-red light that dries many paints, lacquers and other substances 10 to 20 times as fast as other forms of heat.

Original Caption by Science Service

National Museum of American History


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