Difference between revisions of "Hemingray Info"

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The “MASON’S PATENT NOV 30TH 1858” style jars were produced for well more than 50 years by hundreds of glass firms. Not counting the new repro’s sold in the final handful of years, most of them coming from Asia…….China and India. There are some variations, but they typically can be deduced from the above patterns. In all cases, counting the dots and adding them to the mold year code produces the date the insulator was essentially made. On December 19, 1871 Robert Hemingray receives a patent for the molding of telegraph insulators.<br /><ul><br /><li>The CD numbers on the glass , the roughness, and the overall appearance of the glass can support you decide the insulator’s age.</li><br /><li>We also found some Mickey Mouse style operating to an old sawmill, and some pony style insulators, almost certainly from an old telegraph line.</li><br /><li>Lightning rod insulators, and various sizes of spool insulators had been also produced.</li><br /><li>The CD 257 Hemingray clear "Mickey Mouse" insulators are the very best instance.</li><br /><li>Glass insulators had been initial produced in the 1850’s for use with telegraph lines.</li><br /></ul><br />Seasoned collectors can ordinarily make a fantastic judgment among original and later carnival coatings. It is also believed that Hemingray insulators that are brass bushed are almost certainly original as reheating tended to break these. The force of demand largely determines how effectively an antique piece will sell.<br /><h2>Vintage Hemingray No 12 Aqua Blue</h2><br />The Mulford and Biddle insulator originated from the pilgrim hat household. This insulator comes in distinctive shades of aqua, blue, teal blue, and cobalt blue. Altogether I gave about 65 Californias in three various styles, along with hundreds of other makes and models.<br />Side B , By 1900, Hemingray had grow to be a world leader of glass insulator manufacturing. Incorporated 1870 in Covington, Kentucky company made glass bottles, jars, oil lamps, light globes, tableware and insulators. Immediately after discovery of organic gas in east-central Indiana, Hemingray Glass Co. situated factory right here, 1888, and contributed to considerable industrial development of Muncie and state. No matter if you are a collector or hunting for information and facts on glass insulators, we are sure that with the data dished, you now know how useful glass insulators can be.<br /><h3>Thought On The Major 10 Most Beneficial Glass Insulators These Days</h3><br />But there are also fairly a couple of that are a lot scarcer and have values that range into the hundreds or occasionally even thousands of dollars. Your question is very tough to answer in a short way considering the fact that the field of collecting glass and porcelain insulators is pretty wide. Paul, either you have a typographical error there, or have misunderstood one thing. The earliest insulators made by Hemingray have not been particularly identified but would almost absolutely be circa 1850s threadless or possibly “Wade” kinds created for early telegraph lines. Lightning rod insulators, and several sizes of spool insulators were also made. All Hemingray insulators since 1933 have had mold and date codes on them.<br />I noticed 2 or3 of these aluminum frames with the skinny insulators and each and every one particular of the 4 has the symbol and a #58. On average, these glass insulators have a tendency to sell for about $20, even though there are particular situations exactly where insulators can sell for significantly more than that. Generally, the insulators that sell for a lot more are uncommon, either for the reason that of their manufacturer or their color. Hemingray-42 are typically the initial insulators people due to the fact it is an very affordable collectible. But some folks try and sell reproduced or refurbished glass insulators to trick novices into believing the glass is a greater rarity. Color is one particular critical determinant of the worth of a glass insulator.<br />Mike, no one particular is optimistic of the meaning of the significant “1” that is discovered on the dome of some Hemingray-42s. They are a great deal scarcer than ones without the need of the quantity on top. I am guessing it was just a mold number, but I truly don’t know. I have a old insulator from Hemingway with C.S.C. [https://mega.nz/aff=CU5U4OlDge0 Polymeric insulators - suspension Tension insulators] This is clear, hunting for information and mfg date.<br />Uncommon, uncommon colors on Hemingray 42 can quickly transform it into a collector’s item, and improve its worth tenfold. Examples of uncommon colors contain two-tone shades, deep amber, and deep red. Glass Insulator Worth Old glass insulators can variety in value from $2 up to more than $400. Hemingray was finest known for producing telegraph and telephone pin insulators used on utility poles. Oxalic acid is a trusted cleaning agent that entirely removes rust and immediately adds shine to glass insulators.<br />When collecting this insulator, assure to look out for the rarer colors, as they’re a great deal much more in demand than the normal blue color. When I was at Chico State, we made use of to go up the Feather River Canyon and obtain them along the railroad, and also discovered. We also found some Mickey Mouse style running to an old sawmill, and some pony style insulators, almost certainly from an old telegraph line. The “brass bushing” or “thimble” insert was put in spot by machine, at the time the insulator was created and the glass was nonetheless extremely hot. There are quite a few websites that give info on a variety of types of insulators. Right here is a basic web page with some of the most frequently asked queries on insulators….<br />Please make any essential arrangements prior to bidding. CurrencyUSDBuyer Premium10% Buyer's Premium (+4% card pmts)Payment TermsWe accept money, checks, and debit/credit cards. There will be a 4% surcharge on all card payments. Who knows – the subsequent widespread piece of glass you discover could well and truly be a diamond in the rough. They could repair cracks or chips, or dye the insulator an uncommon colour to improve its value.<br />This signifies if you ever come across these colors, you’ll sell your collectibles at a significantly greater price tag compared to the other colors. For example, a cobalt blue glass insulator is worth about $300. I also have an insulator on my internet site that’s clear and has a streak of Cobalt blue by way of it. The guys who produced it got permission to run a batch of Cobalt blue insulators, mostly for collectors.<br />Based in Yreka, California, Macky can be reached via his web site, Glassian, which is a member of our Hall of Fame. All that can be stated is that the aqua (turquoise or blue-green, as effectively as Hemingray Blue, and some are discovered in correct green) 42s date from 1921 to around 1930 or 1931. If it has sharp drip points, it most likely dates from someplace in the 1921 to 1924 time period.
As extended as the insulator performed it’s duty adequately, the colour and minor imperfections in the glass were of little concern. These “marks of crudeness and age” now add to their worth and charm to collectors of antique insulators. So, if you have got a certain colour scheme in mind to suit your decor, you may well want to hit up your regional antique mall or flea marketplace to see what’s out there in your area. The thermal expansion coefficient of the glass insulator is low. Compared with porcelain insulator, it has a greater tensile strength.<br /><ul><br /><li>A single tactic many collectors use is to do keyword searches on ebay or other web sales web sites such as etsy.</li><br /><li>Add some decorative ribbon or thread, and you have got a beautiful upcycled candle holder.</li><br /><li>Regardless of these issues, it must be mentioned that judicious selection and application of nonceramic insulators has resulted in enhanced reliability and decrease installation charges for each transmission and distribution lines.</li><br /><li>Windings may possibly also be impregnated with insulating varnishes to protect against electrical corona and lower magnetically induced wire vibration.</li><br /><li>As long as the insulator performed it is duty adequately, the colour and minor imperfections in the glass were of small concern.</li><br /></ul><br />However, these components do not however have the lengthy-term proven service life of glass and porcelain. Hubbell produces distribution products for each polymer suspension and line post insulators applying housings of either ESP polymer or silicone rubber, both of which are proprietary supplies. Station post insulators are supplied in the strong porcelain post design as effectively as the lightweight and hydrophobic polymer design and style employing silicone rubber.<br /><h2>The Top Ten Most Worthwhile Glass Insulators Right Now</h2><br />This arrangement guarantees that the coating fails by cohesion rather than by adhesion loss at the steel-coating interface. It is a severe threat to the insulation and it can even cause insulation breakdown. three.Any impurity in composition or any temperature variations of atmosphere for the duration of storing or operation leads to breaking the insulator. Diamond-I mark on bottom of amber bottle produced by Illinois Glass Corporation.<br />The majority of the most commonly located sorts of glass pintype insulators have only nominal monetary collector worth, perhaps 50 cents to a dollar. That consists of the extremely popular sorts such as the Hemingray-42, Hemingray-45 and Whitall Tatum No. 1 and other people. Even so, even within the popular types of insulators, slight differences in colour, embossed markings or base kind can make substantial differences in the marketplace worth of a precise piece to knowledgeable collectors. A notch above the most common sorts will be located several insulators that range in the 1 to 5 dollars worth bracket.<br />In the EU, double insulated appliances all are marked with a symbol of two squares, a single inside the other. [http://sqworl.com/wo69od glass insulators high of automation] In microelectronic components such as transistors and ICs, the silicon material is normally a conductor because of doping, but it can conveniently be selectively transformed into a great insulator by the application of heat and oxygen. Oxidised silicon is quartz, i.e. silicon dioxide, the major component of glass. Supplies that lack electron conduction are insulators if they lack other mobile charges as nicely.<br />If sufficient caution and control in these regions is not maintained, the likelihood of an inferior product increases. Having said that, as previously pointed out, when effectively made, both porcelain and glass insulators are hugely trusted. The majority of bushings and lightning arresters installed in today's substations are contained inside porcelain housings. Porcelain housings are, in essence, hollow core post insulators.<br /><h3>Glass Power Line Insulators</h3><br />Currently, a handful of lines employing glass insulators are still in service, but are only a tiny percentage compared to the heyday of open wire communication. Old photos from around the U.S. show many phone, telegraph and electric power poles sporting big numbers of insulators arranged on crossarms. Some telephone poles carried as numerous as 20 or more crossarms, every single one bearing six, eight, 10 or 12 insulators.<br />Electrical breakdown happens when the electric field in the material is strong enough to accelerate totally free charge carriers to a higher adequate velocity to knock electrons from atoms when they strike them, ionizing the atoms. These freed electrons and ions are in turn accelerated and strike other atoms, producing extra charge carriers, in a chain reaction. Swiftly the insulator becomes filled with mobile charge carriers, and its resistance drops to a low level.<br />In addition, all insulators grow to be electrically conductive when a sufficiently substantial voltage is applied that the electric field tears electrons away from the atoms. Some supplies such as glass, paper and PTFE, which have higher resistivity, are incredibly good electrical insulators. Examples contain rubber-like polymers and most plastics which can be thermoset or thermoplastic in nature. 3.When the best and bottom hydrophilic surfaces of porcelain or glass insulators are typical in humidity , monovalent salt pollution has already been dissolved before loss starts. Thus, with the exact same ESDD, the effective pollution degree for hydrophobic silicone rubber insulators is decrease than that for porcelain or glass insulators.<br />This building has the advantage that the ceramic is beneath compression rather than tension, so it can withstand greater load, and that if the insulator breaks, the cable ends are nevertheless linked. The invention of suspension-variety insulators produced higher-voltage energy transmission possible. Suspension insulators, on the other hand, can be connected into strings as long as necessary for the line's voltage. The first glass insulators utilised in significant quantities had an unthreaded pinhole.

Revision as of 02:48, 15 November 2023

As extended as the insulator performed it’s duty adequately, the colour and minor imperfections in the glass were of little concern. These “marks of crudeness and age” now add to their worth and charm to collectors of antique insulators. So, if you have got a certain colour scheme in mind to suit your decor, you may well want to hit up your regional antique mall or flea marketplace to see what’s out there in your area. The thermal expansion coefficient of the glass insulator is low. Compared with porcelain insulator, it has a greater tensile strength.


  • A single tactic many collectors use is to do keyword searches on ebay or other web sales web sites such as etsy.

  • Add some decorative ribbon or thread, and you have got a beautiful upcycled candle holder.

  • Regardless of these issues, it must be mentioned that judicious selection and application of nonceramic insulators has resulted in enhanced reliability and decrease installation charges for each transmission and distribution lines.

  • Windings may possibly also be impregnated with insulating varnishes to protect against electrical corona and lower magnetically induced wire vibration.

  • As long as the insulator performed it is duty adequately, the colour and minor imperfections in the glass were of small concern.


However, these components do not however have the lengthy-term proven service life of glass and porcelain. Hubbell produces distribution products for each polymer suspension and line post insulators applying housings of either ESP polymer or silicone rubber, both of which are proprietary supplies. Station post insulators are supplied in the strong porcelain post design as effectively as the lightweight and hydrophobic polymer design and style employing silicone rubber.

The Top Ten Most Worthwhile Glass Insulators Right Now


This arrangement guarantees that the coating fails by cohesion rather than by adhesion loss at the steel-coating interface. It is a severe threat to the insulation and it can even cause insulation breakdown. three.Any impurity in composition or any temperature variations of atmosphere for the duration of storing or operation leads to breaking the insulator. Diamond-I mark on bottom of amber bottle produced by Illinois Glass Corporation.
The majority of the most commonly located sorts of glass pintype insulators have only nominal monetary collector worth, perhaps 50 cents to a dollar. That consists of the extremely popular sorts such as the Hemingray-42, Hemingray-45 and Whitall Tatum No. 1 and other people. Even so, even within the popular types of insulators, slight differences in colour, embossed markings or base kind can make substantial differences in the marketplace worth of a precise piece to knowledgeable collectors. A notch above the most common sorts will be located several insulators that range in the 1 to 5 dollars worth bracket.
In the EU, double insulated appliances all are marked with a symbol of two squares, a single inside the other. glass insulators high of automation In microelectronic components such as transistors and ICs, the silicon material is normally a conductor because of doping, but it can conveniently be selectively transformed into a great insulator by the application of heat and oxygen. Oxidised silicon is quartz, i.e. silicon dioxide, the major component of glass. Supplies that lack electron conduction are insulators if they lack other mobile charges as nicely.
If sufficient caution and control in these regions is not maintained, the likelihood of an inferior product increases. Having said that, as previously pointed out, when effectively made, both porcelain and glass insulators are hugely trusted. The majority of bushings and lightning arresters installed in today's substations are contained inside porcelain housings. Porcelain housings are, in essence, hollow core post insulators.

Glass Power Line Insulators


Currently, a handful of lines employing glass insulators are still in service, but are only a tiny percentage compared to the heyday of open wire communication. Old photos from around the U.S. show many phone, telegraph and electric power poles sporting big numbers of insulators arranged on crossarms. Some telephone poles carried as numerous as 20 or more crossarms, every single one bearing six, eight, 10 or 12 insulators.
Electrical breakdown happens when the electric field in the material is strong enough to accelerate totally free charge carriers to a higher adequate velocity to knock electrons from atoms when they strike them, ionizing the atoms. These freed electrons and ions are in turn accelerated and strike other atoms, producing extra charge carriers, in a chain reaction. Swiftly the insulator becomes filled with mobile charge carriers, and its resistance drops to a low level.
In addition, all insulators grow to be electrically conductive when a sufficiently substantial voltage is applied that the electric field tears electrons away from the atoms. Some supplies such as glass, paper and PTFE, which have higher resistivity, are incredibly good electrical insulators. Examples contain rubber-like polymers and most plastics which can be thermoset or thermoplastic in nature. 3.When the best and bottom hydrophilic surfaces of porcelain or glass insulators are typical in humidity , monovalent salt pollution has already been dissolved before loss starts. Thus, with the exact same ESDD, the effective pollution degree for hydrophobic silicone rubber insulators is decrease than that for porcelain or glass insulators.
This building has the advantage that the ceramic is beneath compression rather than tension, so it can withstand greater load, and that if the insulator breaks, the cable ends are nevertheless linked. The invention of suspension-variety insulators produced higher-voltage energy transmission possible. Suspension insulators, on the other hand, can be connected into strings as long as necessary for the line's voltage. The first glass insulators utilised in significant quantities had an unthreaded pinhole.

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