Telephone Ceramic Insulators

Vintage brown ceramic telephone insulator with original wood peg 11 18 36.

Telephone ceramic insulators.

Glass insulators were first produced in the 1850 s for use with telegraph lines. Vintage joslyn 103 spool insulators ceramic porcelain 3 telephone pole power. See more ideas about glass insulators insulation antique glass. Off back csa ma.

Telephone wire utility power pole insulator ceramic glazed brown black white vtg. Telephone insulator cd 128 clear pyrex ab tm reg. 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. Make offer vintage brown ceramic railroad telephone insulators lot of 2.

Insulators were first developed in the mid 1800s to be used on telegraph and telephone lines to contain the electrical current and prevent the current from entering the ground below. Vintage insulators are most commonly made out of porcelain or glass materials and they come in a wide variety of colors and shapes making each item a unique. 5 00 6d 19h 14 90 shipping. Lot of 4 hemmingray no.

45 clear telegraph telephone wire insulator. Similar to their glass counterparts porcelain insulators date back to before the civil war for telegraph wires. Porcelain is the most frequently used material for insulators insulators are made of wet processed porcelain. 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.

Kf ceramic power line insulator 7 tier mushroom style 7 5 12lbs. Vintage brown ceramic railroad telephone insulators lot of 2. 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. Rare vintage large ceramic high voltage power line insulator.

Today there are over 2000 collectors and insulator clubs national shows and good reference books are available. Aug 18 2013 explore alicia allen s board old telephone insulators followed by 136 people on pinterest. Insulators were originally designed to keep the wires linking telegraphs and telephones insulated from the wooden poles that held them aloft.