For a fundamental list of glass factories in the United States that are believed to have created glass insulators at some time in their history, please go to my “Glass Insulator Manufacturers” page here. Scarce collectible Brookfield aqua glass insulator with rounded smooth drip location/base. Quite fantastic to fine situation with modest put on.

Shop numbers identified a particular “shop” at the factory. Frequently lots of shops have been making insulators simultaneously. Counting the insulators following they came out of the lehr , and recording how numerous insulators have been created from each and every shop, the workers have been paid for their output.

• After a although they got a bit extra scientific with insulator styles and identified out what exactly was vital and became much more standardized.
• There have been several designs like that, that made no sense at all. Toughened glass Suspension insulators NTP AS
• Mold quantity “33” on the base of an emerald green soda bottle made by Owens-Illinois, Inc.
• In all likelihood, the majority of glass insulators installed on open wire communication lines in the Eastern component of the United States through the 1880s-1910s had been products of the Brookfield glass factory.

It seemed like there have been shows everywhere and collecting insulators was a popular factor. 3.875″ tall 1- CD-164 style olove green with BROOKFIELD and No. 38 on bottom skirt, approx. 3.75″ tall. Thank you for the feedback, the shape is quite related to the CD 126.three and is light aqua colored. I located a piece of history on Brookfield glass and was capable to narrow down the date using the street address, just couldn’t obtain information on CAUVET embossing, only that the patent was bought by Brookfield. Without the need of seeing a picture, I would guess your insulator is 1 of the forms classed as a CD 133 (“signal”), CD 145 (“beehive style”) or CD 126 (“blob top”). These CD numbers are portion of the “Consolidated Design” cataloging program made use of by insulator collectors.

Antique W Brookfield 45 Cliff St New York No 10 Glass Pony Insulator

Numerous of them bear those 3 patent date markings. It may possibly be thought of as a type of advertising and marketing hype or “brand name bragging rights”. The 1865 date refers to the celebrated Cauvet patent, which essentially introduced the notion of screw threading in pintype insulators.

Integrated in this book are clear closeup photos of every single known/confirmed shop quantity variant. Lee’s meticulous study information the minor differences of the lots of different molds utilized more than this time frame. Those shop numbers range from 00 to 23, and the shop letters A and B. Antique bottle and glass community exactly where collectors, diggers, traders and anyone with an interest in antique bottles meet.. Just after my analysis it seemed odd that there have been three patent dates, but what actually interested me was the CAUVET name included in the markings.

Insulator Identification And Dating

You can use these keyword phrases and search Google Images for pics of related insulators to determine which style you have. There are several Brookfield insulators, of a quantity of distinct designs, that bear “shop numbers” on the dome or crown of the insulator, and these numbers can be oriented either “normal” or backwards. In reality, on some types of insulators the backward numbers are pretty much as common, if not equally as widespread, as their typical counterparts. glass insulators fog Many are frequently observed on the “B” beehives. On a single of their older insulator types, the CD 126 “blobtop” , I have personally seen the shop quantity “4” oriented usually, backwards, upside down, and sideways, on several mold varieties!! Evidently, no matter whether or not the numbers seem properly or backwards was not deemed of any terrific importance at the factory…….

In all likelihood, the majority of glass insulators installed on open wire communication lines in the Eastern part of the United States in the course of the 1880s-1910s were products of the Brookfield glass factory. CD 133 style glass insulator marked “BROOKFIELD” and “No 20”. The 1890s saw growing production of insulators for electrical power lines. About this objectThreaded pin-sort glass insulator, CD 152. Has a single side wire groove, tall rounded dome, convex skirt with two petticoats and a smooth base. There is a “” embossed on major of the dome along with some decorative markings.

When I lived in San Mateo a lot of the old glass was nevertheless up in the air. There are some really thrifty companies out there, and insulators lasted and they just kept reusing them over and more than. But these days, if I stroll around Yreka, there’s hardly any glass at all, typically for telecommunications they use cables, which do not need to have insulators. For the power, they practically exclusively use porcelain. suspension insulators For new construction they will only often use glass on the high power pylons. The glass ones are used a lot far more in Canada than right here.