Latest application of Pyrex glass; insulators

Latest Applications of Pyrex Glass

BY W. H. CURTISS†

The most recent application of pyrex to a large commercial field is the introduction of pyrex insulators. The electrical engineer demands for the insulation of transmission lines a material that has great tensile strength, is impervious over a long period of years to extreme weather conditions and that likewise possesses the right dielectric properties. Coming has had a large measure of success in demonstrating to the electric industry that pyrex admirably meets all of these conditions and many thousands of pyrex transmission line insulators are now in service.

This development came at a time when the whole world was preoccupied by the marvelous possibilities of radio communication and it was only natural that pyrex as an insulating material should capture the interest of radio engineers. It was soon proven that pyrex had a remarkably low power loss factor and that for both sending and receiving better results could be obtained with pyrex insulated equipment. The navy, the coast guard, the air mail service and many large commercial stations have now adopted pyrex as the standard insulating material for all radio equipment. Radio insulators in a wide variety of size and form as well as sockets, tube bases, condenser parts and other radio specialties are now manufactured from pyrex in large quantities.

¹Corning Glass Works.