Vintage Ceramic Telephone Insulators

Make offer vintage brown ceramic stoneware locke power pole insulator made in usa 17 hemingray turquoise and clear electric insulators.

Vintage ceramic telephone insulators.

Vintage brown ceramic telephone insulator with original wood peg 11 18 36. Off back csa ma. Vintage glass insulators were first produced in the 1850s for telegraph lines then for telephone and power transmission lines. Similar to their glass counterparts porcelain insulators date back to before the civil war for telegraph wires.

Buy ceramic insulators on ebay now. They insulated and protected the wooden poles from the electricity coursing through the wires. Insulators were originally designed to keep the wires linking telegraphs and telephones insulated from the wooden poles that held them aloft. In conjunction with the expansion of rural electrification in the early 20th century there was a major boom in the manufacturing of.

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. Vintage electric ceramic glaze telephone telegraph pole insulator cap brown 19 49 1900 s hemingray 42 usa 24 48 telephone insulator 4 x 3 5 glass bead bottom. Vintage joslyn antique 5 brown porcelain electric insulators with bracket.

7 vintage brown porcelain ceramic insulators antique telephone insulators c. Ils 38 23 6d 16h. Vintage large brown porcelain insulators pinco 1966 rare. Telephone insulator cd 128 clear pyrex ab tm reg.

Telephone wire utility power pole insulator ceramic glazed brown black white vtg. 12 large and 5 small. Lot of 64 99. They are made from glass porcelain or composite polymer materials nonconductive materials.

In the mid 1960 s a few people began collecting these glass and porcelain insulators. Glass and ceramic insulators were originally manufactured in the 1800s to protect telegraph lines and secure them to poles and then later used for telephone and power lines. Today there are over 2000 collectors and insulator clubs national shows and good reference books are available. In north america glass was always the predominate material for communications insulators but porcelain has become the standard for power distribution due to its greater strength and surface resistance.