Vintage Insulators Telephone Pole Hemingray Brown Ceramic

Ceramic insulator 6 items 6 porcelain insulator 6 items 6 see all.

Vintage insulators telephone pole hemingray brown ceramic.

Glass insulators were first produced in the 1850 s for use with telegraph lines. 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. Aqua ice blue am tel tel co glass telephone toll insulator. 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 insulators with production peaking from the 1920s through the 1940s when millions of hemingray dominion and. Shop for and learn about vintage glass insulators. Their sole purpose was to insulate the wire from the wood reason for which materials such as glass porcelain or composite polymer materials had been chosen. Aug 18 2013 explore alicia allen s board old telephone insulators followed by 136 people on pinterest.

Make offer lot of 5 original antique glass insulator wooden pegs set poles 100 years old. Today there are over 2000 collectors and insulator clubs national shows and good reference books are available. Vintage small clear glass hemingray telephone pole insulator 12 usa 22 41. In 1850 companies such as hemingray bookfield and whitall tatum started producing glass insulators for telegraph lines telephone and power transmission lines later on.

Insulators were originally designed to keep the wires linking telegraphs and telephones insulated from. They are made from glass porcelain or composite polymer materials nonconductive materials. They insulated and protected the wooden poles from the electricity coursing through the wires. See more ideas about glass insulators insulation antique glass.

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. As technology developed insulators were needed for telephone lines electric power lines and other applications. Vintage glass insulators were first produced in the 1850s for telegraph lines then for telephone and power transmission lines. In the mid 1960 s a few people began collecting these glass and porcelain insulators.

Vintage hemingray antique telephone glass insulator no 40. Antique hemingray 17 clear glass insulator threaded for screw top pole mount. An electrical insulator is a material.