How can you tell how old a glass insulator is?
All dots around the year code should be counted (a colon counts as two dots), and added to the date of mold manufacture. This gives the actual date the insulator was produced.
How many insulators are there for Hemingray Glass?
There are currently 177 different insulator designs in the database. Are you new to insulators? No problem; I was once a beginner too! Here are all the basics to know about Hemingray glass insulators.
When did the Hemingray Glass Company go out of business?
The Hemingray Glass Company operated continuously from 1848-1972 and was the single largest manufacturer of glass insulators in the world. This web site is dedicated to providing information on every insulator style made by Hemingray.
Where are the dots on a Hemingray insulator?
In some cases the dots are around, above, and below the “-” dash. In any case, count ALL the dots, and add this to the mold year (see above). This gives the date the insulator was actually produced. Mold codes: The mode code is a one or two digit number, sometimes followed by a letter.
What is the mold code for Hemingray insulators?
MMis 5, YYis 42, and we have 3 colons (each count as 2 dots), and a dot, or 7 “dots”. Thus, the mold code is 5, the year the mold was made is 1900 + 42 = 1942and the insulator was manufactured in 1900 + 42 + 7 = 1949.
Are there any Hemingray Armstrong glass insulators left?
Only 1 left! Only 1 left! Only 1 left! Lot – 9 Antique Vintage Glass Insulators Green Clear HEMINGRAY Armstrong EARLY ! Only 1 left! Only 1 left!
What kind of electric insulator is Hemingray blue?
As stated earlier, the Hemingray-42 is probably the most common U.S.-made glass electrical insulator in the world. The great majority are found in aqua, Hemingray Blue or clear glass. Less common are examples in shades of true green (i.e. showing no blue influence in the color) or in two-tone (half aqua, half green).
The Hemingray Glass Company operated continuously from 1848-1972 and was the single largest manufacturer of glass insulators in the world. This web site is dedicated to providing information on every insulator style made by Hemingray.
Who was the largest manufacturer of glass insulators?
The Hemingray Glass Company operated between 1848-1972 and was the largest manufacturer of glass insulators in the world. This web site is dedicated to providing information on every insulator style made by Hemingray.
