Antique Electrical Insulators
Nowadays, high temp electrical insulators are used in various appliances and electrical fields which can withstand a very high temperature of heat and they are highly resistant to electricity. But in those days there were less advancement in the development of ceramics and hence there were very few compounds which would act as insulators in various electrical appliances. The first insulators used along with the telegraph were the glass insulators which were manufactured in the late 1850´s.
By that time the use of the telegraphs was flourishing across the whole country of America and hence it became necessary to use insulators in those electrical appliances which were being used on a large scale for safety measures. In the 1920´s the telephone wires and telegraphs were moved to copper wires which were considered to be more reliable than the present source of communication. So at each pole of the wiring, glass insulators were used and people started collecting these insulators and a hobby of collecting insulators was started.
Insulators are available in different sizes, colors and shapes. They are manufactured using different kinds of materials like porcelain, glass, rubber, pottery, fiberglass, wood, mica and sometimes metal. Glass and porcelain insulators are the collectors´ favorite among all of them and are widely collected by those people whose hobby is to just collect all the types´ insulators available. Glass insulators generally have the name of their manufacturer carved on it for example Hemingray No. 9 which means that the particular glass insulator was manufactured by Hemingray Glass Company which is situated in Muncie, Indiana.
There is a vast variety of insulators which are made of porcelain, stoneware, ceramic and other related materials. Those people who like to collect these insulators mainly focus on the pin-types and insulators which were first used in radio receiver antennas. Some of the manufacturers who manufactured these insulators are Cook, Fred M Locke, Varley and New Westminster. Insulators are very useful devices which save the people from electric shocks and hence even today no electrical device is manufactured without an insulator fitted in it.
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