I've incorporated the patent application letter under and it is intriguing to study the reasoning behind the small "teats" as they had been known as by the inventors themselves. The “Stamp” molds are easier to tell apart from each other than the Prism molds are, basically since of the generally erratic placement of the stamped letters. The mold engraver had wonderful difficulty in stamping the characters in Precisely the very same position from mold to mold. “EVO” style embossings, which are rather really hard to discover, have been observed in most of the similar colors as the “Script” style. “EVO 1” can be identified by the oddly shaped “9”, shown right here.

My collection of insulators have all been identified laying about in various components of the state. I just picked them up because I liked them and they make an exciting show in the yard. They surely took a battering the mother of all hailstorm we had last evening but they all survived. Just a handful of of the a lot more colorful pieces I had in the previous.

All of the insulators photographed are from my individual collection. This trio of Hemingray insulators are nevertheless stained with carbon soot from their time spent in close proximity to a steam powered railroad line. Some collectors like to clean the insulators of this black residue but I never touch them.

Generate your item reminder Currently have an account? My thanks go to my neighbor Lars, whose father collected these more than the years. These are from his collection and Lars graciously permitted me to borrow them for the objective of shooting a couple of photographs.

• It would have been embossed with "No 16" had they put the style on it back when it was produced.
• Please feedback additional essential dates or note any necessary corrections.
• CD 272 Whitall Tatum insulators are common in amber.
• A friend of mine has about 500 insulators that I just looked via.
• Boyd glass “chick salt” covered dish in lilac glass.

Some areas had extra than one power business on a pole, so different colors were use to assist the lineman distinguish what line they have been working on. Also, the poles made use of unique forms of circuits so distinct colors had been applied for the distinct circuits. A great example would be Kansas City, MO employing cobalt, peacock, and electric blues on their street lighting circuits.

Insulator Post Hemingray Drip Points

This is partly simply because I am a small much less interested in them since they are newer, but also for the reason that of lack of detailed information, and of time, energy and patience in researching them. Before his death in 1930 he was granted 54 utility patents and 3 style patents throughout the years 1889 to 1933. He would also turn out to be recognized as " the father of porcelain insulators." What caught my eye about this scene was the old lone energy pole with a CD 162 Hemingray-19 glass insulator.



For those interested, right here is a street view of this insulator in use. A close up of a CD 232 Hemingray-D-513 in service use along a rural road just outside Decatur, Indiana. The street light is an old Westinghouse OV-10 mercury vapor street light. McLaughlin reportedly created 672 commemoratives in 1972, of which only 72 were red milk like the 1 shown on the opposite page.² The Price tag Guide values the commemorative in red milk glass at $800 to $1,000.

Please take a look at the Hemingray Values page for much more details. The amber colors had been mostly utilized in the state of Kansas with the orange ambers utilized on the line markers in Ellsworth, Kansas. Diverse ambers had been also discovered in the pacific northwest like Spokane, WA and other smaller towns all through Idaho and Montana.

Please feedback additional crucial dates or note any necessary corrections. Dates considered especially substantial are highlighted in red. Boyd glass “chick salt” covered dish in lilac glass. If there are other numbers or letter out of alignment, note that and cautiously compare with other examples to see if they are placed in the exact same position.

Diamond-I mark on bottom of amber bottle created by Illinois Glass Company. OVG monogram on the base of a “Daisy & Button” shoe toothpick holder in amber glass. A few of the associated error molds are listed in the price guide below a unique EIN, such as the “HEMINGAY” mold spelling error, which is listed as EIN . If the worth in this column says WANTED, then that specific insulator is on my wanted list! If you have that insulator and would like to sell it, click on the WANTED hyperlink to submit photographs and speak to me. The Embossing Index Quantity is a exceptional quantity assigned by the collecting hobby to every distinct embossing for an insulator design.

I tend to compare this to the eccentricities of the numismatics fraternity that in some cases goes a tiny overboard on studying several quite slight variations in coin dies, as seen beneath a microscope or loupe. In some cases an individual letter leans strongly to the right or the left, is larger or reduce than an adjoining character, or is also close or also far apart from the subsequent letter in sequence. In some cases a letter in the best line of text is practically touching a letter in the line under. Some of the colors in these earlier embossing variants are pretty scarce to uncommon, and in some circumstances practically not possible to uncover.

Hemingray May Possibly 2 1893 Insulator Smaller Sized Version

One variant has a pretty slightly narrower “bottom loop”, as if approaching on a “V” shape. The second sort is the most common, seen on likely 70% or additional of these units. https://umek.pro/company/about-us The short horizontal stroke of this G typically looks indistinct or “sloppy”. The No. 12 was usually used on phone “drop lines” extending from the back alley to person homes and firms. The effectiveness of this invention is very questionable following all these years, but the patent was certainly “hyped” to a excellent degree by Hemingray. A huge percentage of their insulators had been made with drip points for many years.



It was the middle size in the D-series with the D-512 the smaller size and the D-514 the bigger size. It was made use of for major power distribution with a voltage rating of 13,500 volts. https://umek.pro/company/production In our location, the CD 232 was rarer to see up in service than the other clear glass pin type insulators styles. Some examples are found with splotches, streaks or swirls of amber. A photograph of a trio of clear glass insulators that had been utilized on "phone" poles to distribute electrical energy. Hemingray appears to be the manufacturer of these insulators.