Glass insulators were first produced in the 1850's for use with telegraph lines. As technology developed insulators were needed for telephone lines, electric power lines, and other applications. In the mid 1960's a few people began collecting these antique glass insulators. Today there are over 3,000 insulator collectors. Insulator clubs, local and national shows, and good reference books are available.
Patent of the Day
Utility Patent 1,691,964 on November 20, 1928
By Paul A. Carnahan
Pin: Pin with locking device to fit in threads to secure insulator

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Wednesday, November 20, 2024
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