Glass Insualtor Markings
Pamela is an antique professional and the author of 3 books on the subject. She's written over 400 articles on antique collecting for The Spruce Crafts. Diamond-I mark on bottom of amber bottle made by Illinois Glass Firm.
As technology created insulators had been needed for phone lines, electric energy lines, and other applications. In the mid 1960's a handful of folks began collecting these antique glass insulators. Insulator clubs, local and national shows, and excellent reference books are available. A scarcer sub-variant of the “STAMP” style embossing bears lettering that tends to be lightly embossed and have characters with “thinner” weaker strokes as if the letters had been a lot more lightly “traced” in the mold.
The high-quality of our higher-voltage insulators is confirmed by the power engineers. Power line glass insulators have passed tests in the international laboratories. The encounter of the ideal business experts and the newest manufacturing gear allow to create suspension toughened glass and pin-variety insulators. From the Arctic to the humid tropics, to the dry deserts our power line glass insulators are successfully used at power and railway facilities. If you are interested in collecting glass insulators, this book is a absolute should have.
They have been made in pretty big quantities and these colors commonly date from 1921 to about 1930. It is not possible to assign an Exact year of manufacture to any of the aqua or Hemingray blue specimens. (No 1 is absolutely positive when the final aqua 42s were produced, but probably circa ).
glass insulators umek 17 was developed from about 1892 to and tremendous numbers had been utilised across the nation on nearby phone line systems. So, nowadays the 42s are considerably much more generally located in such places as antique malls and flea markets. “EVO” style embossings, which are rather really hard to locate, have been noticed in most of the very same colors as the “Script” style.
The “new and improved” #42 model really rapidly gained in reputation for typical open-wire communication lines, and was quickly the most well known and popular insulator made for each telegraph and phone lines. Lots of railroad lines used them for their telegraph communications, and the style became the standard for A T & T long distance “toll” lines. The 42 is classed as a “CD 154”, in the “consolidated design” cataloging/identification system utilised by insulator collectors. Every CD number is assigned to a standard shape (profile/size), regardless of the precise embossed lettering, glass color or base kind. We have these complete glass insulators value list, and can give you a affordable glass insulators price guide.
The initially insulators of this sort were modest due to the fact they only necessary space for 1 wire. As time went on the insulators became bigger and reflected the growth of the phone and electricity. Antique glass insulators are a low cost but really well-known collectible. They are uncomplicated to obtain, come in a wide variety of colors, and make a colorful display.
Insulators produced from porcelain wealthy in alumina are utilised where higher mechanical strength is a criterion. Glass has a larger dielectric strength, but it attracts condensation and the thick irregular shapes needed for insulators are tricky to cast with no internal strains. Some insulator producers stopped generating glass insulators in the late 1960s, switching to ceramic supplies. We sell suspension glass insulators at the very best price for the ideal high-quality. The items of JSC «U.M.E.K.» are most competitive in the glass insulators’ world marketplace.
Vintage Glass insulators were initially developed in the 1850s for telegraph lines, then for telephone and energy transmission lines. They insulated and protected the wooden poles from the electrical energy coursing via the wires.
These pieces of glass have been positioned on a tapered wooden pin, vertically extending upwards from the pole's crossarm . Organic contraction and expansion of the wires tied to these "threadless insulators" resulted in insulators unseating from their pins, requiring manual reseating. Insulators utilised for high-voltage energy transmission are made from glass, porcelain or composite polymer materials. Porcelain insulators are made from clay, quartz or alumina and feldspar, and are covered with a smooth glaze to shed water.
As technology created insulators had been needed for phone lines, electric energy lines, and other applications. In the mid 1960's a handful of folks began collecting these antique glass insulators. Insulator clubs, local and national shows, and excellent reference books are available. A scarcer sub-variant of the “STAMP” style embossing bears lettering that tends to be lightly embossed and have characters with “thinner” weaker strokes as if the letters had been a lot more lightly “traced” in the mold.
The high-quality of our higher-voltage insulators is confirmed by the power engineers. Power line glass insulators have passed tests in the international laboratories. The encounter of the ideal business experts and the newest manufacturing gear allow to create suspension toughened glass and pin-variety insulators. From the Arctic to the humid tropics, to the dry deserts our power line glass insulators are successfully used at power and railway facilities. If you are interested in collecting glass insulators, this book is a absolute should have.
Green Vintage Hemingray Glass Telegraph Line Insulators
They have been made in pretty big quantities and these colors commonly date from 1921 to about 1930. It is not possible to assign an Exact year of manufacture to any of the aqua or Hemingray blue specimens. (No 1 is absolutely positive when the final aqua 42s were produced, but probably circa ).
glass insulators umek 17 was developed from about 1892 to and tremendous numbers had been utilised across the nation on nearby phone line systems. So, nowadays the 42s are considerably much more generally located in such places as antique malls and flea markets. “EVO” style embossings, which are rather really hard to locate, have been noticed in most of the very same colors as the “Script” style.
The “new and improved” #42 model really rapidly gained in reputation for typical open-wire communication lines, and was quickly the most well known and popular insulator made for each telegraph and phone lines. Lots of railroad lines used them for their telegraph communications, and the style became the standard for A T & T long distance “toll” lines. The 42 is classed as a “CD 154”, in the “consolidated design” cataloging/identification system utilised by insulator collectors. Every CD number is assigned to a standard shape (profile/size), regardless of the precise embossed lettering, glass color or base kind. We have these complete glass insulators value list, and can give you a affordable glass insulators price guide.
- Here is a basic page with some of the most normally asked questions on insulators….
- Most have been probably made at the Covington, Kentucky glass plant, while some bottles may possibly have been produced at the Muncie IN plant and these would date following 1888.
- You could possibly find a handful of pics or other info on them by checking the web sites Hemingray.com and Hemingray.net .
- The “MASON’S PATENT NOV 30TH 1858” style jars were created for well over 50 years by hundreds of glass businesses.
- Not counting the new repro’s sold in the last handful of years, most of them coming from Asia…….China and India.
- Quite a few types of insulators marked “PATENT DEC ” had been manufactured from about 1871 into the early 1890s.
The initially insulators of this sort were modest due to the fact they only necessary space for 1 wire. As time went on the insulators became bigger and reflected the growth of the phone and electricity. Antique glass insulators are a low cost but really well-known collectible. They are uncomplicated to obtain, come in a wide variety of colors, and make a colorful display.
Insulators produced from porcelain wealthy in alumina are utilised where higher mechanical strength is a criterion. Glass has a larger dielectric strength, but it attracts condensation and the thick irregular shapes needed for insulators are tricky to cast with no internal strains. Some insulator producers stopped generating glass insulators in the late 1960s, switching to ceramic supplies. We sell suspension glass insulators at the very best price for the ideal high-quality. The items of JSC «U.M.E.K.» are most competitive in the glass insulators’ world marketplace.
Vintage Glass insulators were initially developed in the 1850s for telegraph lines, then for telephone and energy transmission lines. They insulated and protected the wooden poles from the electrical energy coursing via the wires.
Insulator Identification Gallery!
These pieces of glass have been positioned on a tapered wooden pin, vertically extending upwards from the pole's crossarm . Organic contraction and expansion of the wires tied to these "threadless insulators" resulted in insulators unseating from their pins, requiring manual reseating. Insulators utilised for high-voltage energy transmission are made from glass, porcelain or composite polymer materials. Porcelain insulators are made from clay, quartz or alumina and feldspar, and are covered with a smooth glaze to shed water.
