Glass insulator dating

glass insulator dating

Do you know why people collect glass insulators?

It may also interest you to know that people collect these glass insulators. They attach sentimental value to them, they buy them at auctions and set them on their shelves in their homes. It is this people’s hobby to collect antique stuff and glass insulators are some of the most valuable collectibles.

When was the heyday of the glass insulator?

The period from 1875 to 1930 might generally be thought of as the “heyday” of the glass insulator. Hundreds of millions of these glass “bells” were produced during this time by many glasshouses, located primarily in the East and Midwest with a few plants in California and Colorado.

How much is an old glass insulator worth?

Old glass insulators can range in value from $2 up to over $400. Like other antiques, glass insulators are evaluated on several criteria: A good way to determine value is to spend a few days checking eBay.

What color glass is used as an insulator?

Many of the glasshouses that made insulators also produced bottles, fruit jars and other glassware. Most insulators are found in some shade of aqua (blue-green) colored glass (typical inexpensive “bottle glass” or “green glass”) but many, many other color shades are found.

Why do people collect insulators?

And insulators are no exception. Some people collect them just to have some pretty colored glass sparkling in their windows or out in the garden; while other people collect specific kinds of insulators. Insulator prices can range from free to the tens of thousands of dollars for extremely rare specimens.

Are glass insulators still used today?

Most modern telephone lines now make use of insulated sheathed cable, and many are underground. Today, vintage glass insulators are a collectible item in their own right, often saved, studied and displayed along with antique bottles, tableware and other early glassware.

What are the disadvantages of glass as an insulator?

Many earlier insulators have bubbles, streaking, “snow”, surface creases and other marks of crudeness which was common for this type of glass because quality standards were not usually set as high as tableware. As long as the insulator performed it’s duty adequately, the color and minor imperfections in the glass were of little concern.

What happens if there are no insulators in the body?

Without insulators, high voltage of electricity may flow through our body that can cause serious injuries like burns and electrical shock to the heart. Before, glass is the most commonly used insulators by telephone and telegraph companies in their utility poles.

What kind of glass is used as an insulator?

Many of the glasshouses that made insulators also produced bottles, fruit jars and other glassware. Most insulators are found in some shade of aqua (blue-green) colored glass (typical inexpensive “bottle glass” or “green glass”) but many, many other color shades are found. Clear glass was used (with some exceptions) primarily after about 1935.

What colors can glass insulators be colored?

Glass insulators can be colored various shades of purple and straw by prolonged exposure to the sun.

What materials are used to make an insulator?

The designing of an insulator can be done using different materials like rubber, wood, plastic, mica, etc. The special materials used in the electrical system are glass, ceramic, PVC, steatite, polymer, etc. But the most common material used in the insulator is porcelain and also special composition, steatite, glass materials are also used.

When was clear glass used as an insulator?

Clear glass was used (with some exceptions) primarily after about 1935. Hundreds of different styles were developed over the years, and insulators are found with a wide variety of embossed names, initials, patent dates, and other markings.

Related posts: