Notes

Brookfield Glass Enterprise
The exact time when the Brooklyn plant was closed is still open to question, but it may possibly have been around 1912, meaning that both plants likely operated simultaneously for a period of about 6 years. I am at present working on an estate with a large collection of vintage insulators. These colorful glass pieces have been employed on telegraph and telephone poles screwed to wood pegs in the cross arms of the poles where the lines have been tied from pole to pole. No, the Hemingray firm itself by no means published such a guide. Apart from, it has been over 50 years because the final insulator was created at the Hemingray factory in Muncie .



The challenge is that it did not match the very same wooden pin as the 743.2 or the standard straight wooden pin of regular threadless. Hamilton Glass Co. produced the McMicking threadless dated 1875 for delivery in 1876. I uncover the 1st threaded insulator in Canada was the CD 143 Montreal Telegraph Co. in Every single will be dated in the create up. It has been mentioned that unique amounts of glass place into the mould created for a longer or shorter skirt. https://umek.pro/ This is not achievable in the 743.three pair of moulds . Though it might be achievable in the 743.1 pair of moulds and the 743.two mould , I locate that from all I see it is not likely .

Cd 164 Brookfield

A handful of weeks ago I also saw miles of old poles and insulators on my drive from Winchester, Virginia to Lurray, Virginia on the scenic Stonewall Jackson Memorial Highway. glass insulators power lines I saw this posting by James Bancroft on his facebook web page of a large pole full of beehives of 152’s and 154’s. Brookfield Glass CompanyA sparkling CD 145 or "beehive" insulator from the telegraph era made by the Brookfield Glass Firm circa 1882. The Embossing Index Number is a exceptional quantity assigned by the collecting hobby to each and every distinct embossing for an insulator design.

Any person with even a rudimentary understanding of ceramic chemistry can perform up a clay physique that will be vitreous upon firing with porosity in the 1-two% variety. Specially with all of the information place out there by the craft and art people each in book kind and on the world-wide-web. Glazing the surface would make either a single of these fairly much as impervious as glass, and the porosity of the clay physique would become fairly significantly a non-challenge. I believe you would only want a single side glazed, as any residual moisture would not make a distinction as extended as it couldn't get to the outer surface exactly where the wires are connected.

This Hemingray embossed version is embossed with "Double Petticoat" on the rear skirt. Curious to know if anybody would want to collaborate, and open to suggestions. One particular other element in my believed procedure is that by the time these bee hive threadless have been converted to threaded in 1877, the Montreal Telegraph CD 143 was getting produced as a shorter skirt piece. Insulators are usually low-priced and quick to gather. I have begun to use "white-board" plastic with wood screws, but that stuff can't take the heat.

Lee’s meticulous investigation facts the minor differences of the lots of various molds used over this time frame. Those shop numbers variety from 00 to 23, and the shop letters A and B. Pic below is single thread left and double thread on correct. Note black ink on leading proper hand side on dome exactly where there is a bump from a flaw in the mould. The final use of this mould is a incredibly quick double thread that has what is referred to as a continuous drip base. Note how base plate goes significantly less into the mould creating the skirt longer.

1 other aspect in my believed method is that by the time these bee hive threadless had been converted to threaded in 1877, the Montreal Telegraph CD 143 was becoming produced as a shorter skirt piece. Insulators sold for pennies each and every so a reduction in glass applied would have elevated profit by about 30% . These will be mostly threadless moulds later used as threaded moulds by altering the pin .

Without seeing a image, I would guess your insulator is one of the kinds classed as a CD 133 (“signal”), CD 145 (“beehive style”) or CD 126 (“blob top”). Those CD numbers are part of the “Consolidated Design” cataloging technique made use of by insulator collectors. https://umek.pro/company/production You can use these keywords and phrases and search Google Pictures for pics of similar insulators to identify which style you have. There are lots of Brookfield insulators, of a number 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 designs of insulators the backward numbers are nearly as prevalent, if not equally as prevalent, as their normal counterparts.

Cd 126 W Brookfield

I did not realize it but apparently "beehive" is utilised by folks to describe the old style telegraph/telephone pole insulators. "Standoff" appears to be far more normally utilized for these. An 1880's era CD 145 CREB telegraph insulator that is literally packed with tens of thousands of micro bubbles. This is a pretty scarce feature to discover these really old beehives with as the early Brookfield firm seemed to be much extra careful about glass quality than it was in it's later years. Mold quantity “33” on the base of an emerald green soda bottle created by Owens-Illinois, Inc. Millions of these kinds of “generic” non-returnable soda bottles have been made for many years.



I not too long ago discovered a Brookfield CD 152 insulator on a pole in Ohio with an embossing error, and I’m asking yourself if any individual can tell me if it is rare or valuable or not given that I cannot find any facts on the world wide web. I have a W Brookfield beehive insulator with two embossed “nipples / dots” on top and it also has “New York” on it . Dark olive ambers, and dark amber striped insulators.
Website: https://umek.pro/company/production