Notes

Hemingray No 9 Patent May Two 1893 Glass Telephone Insulator
But I know 1 insulator dealer who kept red marbles at his table when he had red CD 272's for sale. If power line insulators looked at the marble, it was red glass devoid of a doubt. Then he would have you hold the marble up next to the Whitall Tatum, and they were the very same colour of glass! It was the density of the glass that made the insulator look much more amber than red. Of course we do not wish to be restricted to the unique class of "double petticoat" insulators shown in the drawings, as our series of teats can be formed on the decrease edge of any of the nicely recognized types of insulators. As is generally the case time is not kind to the brittle glass teeth and they turn into chipped.



It bears a vague resemblance to the Bass Clef sign as employed in sheet music. The engraving in the molds was deep and the resultant embossing on the insulators is sturdy and bold. This insulator was created by the Hemingray Glass Enterprise in Muncie, Indiana. The CD 113 Hemingray style insulators were developed from the c1890's-1940's. At suspension insulators suppliers and was a very well known style and millions have been created by a few glass organizations with Hemingray producing the most. The peacock blues had been mostly made use of on the street light circuits around Kansas City, MO and other compact towns in Missouri, though the dark cobalt blues had been employed in the states of Kansas, Texas, and Ohio.

Hemingray May Well Two 1893 Insulator Smaller Version

Please check out the Hemingray Values page for far more information. glass insulators high of automation had been largely utilised in the state of Kansas with the orange ambers employed on the line markers in Ellsworth, Kansas. Different ambers were also found in the pacific northwest like Spokane, WA and other smaller towns throughout Idaho and Montana.

CD 302 insulators are a moderate size power insulator that were produced by the Hemingray Glass Corporation in Muncie, Indiana. They have been developed from c1893 to 1920 for use on early energy distribution with a voltage rating of 40,000 volts. CD 302 insulators are identified as the "Muncie" style insulator, even though some have the Ohio embossing on the reverse side as an alternative of Muncie Type. There are far more variety of colors made in the style of the CD 162 Hemingray insulators than any other CD style or glass organization. Hemingray-42 is one particular of the most common designs of glass insulators.

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

The CD 113 Hemingray style insulators were produced from the c1890's-1940's. The most recent make of insulator with that patent date on it, as far as I know, was 1960s. Clear, clear-smoke, ice blue, blue, two shades of aqua, and green.

Many years ago, the open wire applied with the two glass insulators was abandoned and a single-user aerial cable was added. Glass energy insulators are finding very uncommon to see up in service currently. They have been final developed about six decades ago, and with all the upgrading going on. CL&P applied 4 distinct glass insulators on their neutral lines. CD 168 Hemingray D-510s, CD 218 Hemingray-660s, CD 230 Hemingray D-512s, and CD 272 Whitall Tatum 511As.

Aid W Hemingrays & Clear Insulators

Closeup of “EVO 1” style, No 9 sideThe “EVO 2” is a seldom-seen variant which is much more lightly engraved, the lettering with rather squared-off orientation and equivalent to the succeeding Prismic style. The Script embossing has a comparatively lightly-embossed top quality about the lettering. The “1893” date is typically crude with a noticeably “handwritten” look. I found 5 of these, the initially ones in my collection. Found along the former Rock Island near Malcom, Iowa.



The most recent make of insulator with that patent date on it, as far as I know, was 1960s. Ultimately Hemingray transitioned into utilizing round drip points as shown on this hoop skirt. By the 1950's the drip point was already fading off into obscurity as glass fell out of favor and porcelain took more than as the material of decision for insulation duty.

A CD 220 Hemingray-670 power insulator nonetheless in service use immediately after 80 years of service in northern Indiana. The Hemingray Glass Enterprise in Muncie, Indiana was the most significant producer of this CD style of insulator. Millions upon millions were generate from 1921 to the early 1960's.

At the time this photo was taken, Bluffton, Indiana was nonetheless utilizing the old six.6A series street lighting loop, which only a few cities and towns have been employing at the time. The street lighting circuits were changed over to modern day parallel circuit technique a handful of years right after the photo was taken. Probably no other glass insulator comes to mind more than the Hemingray 42 when we think of the glass telegraph/telephone insulator. Introduced in 1921, the  petticoat communication insulator ever created. Gill's innovative idea to aid rain water shed off the glass insulator.
Read More: https://usedautomoto.com/user/profile/2197566