Looking for a MATE!
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Looking for a MATE!
I have ONE of these - I’m looking for a mate!
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Re: Looking for a MATE!
I heard that you could duplicate the coloring by MicroWaving and old lens. I tried it and it did not do anything. After a half hour in the microwave, the glass lens cracked.
Jon
Jon
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Re: Looking for a MATE!
I would think that a UV light would do it depending on the makeup of the glass. But, if it has not turned in all these years why would it turn now? Dan
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Re: Looking for a MATE!
Wishing you luck if you are trying to match color. To be sure you understand; the color is caused by UV light not made that way, so chances of getting ones that have the same color might be small but doable. True, about what the formula the glass was made from, that formula was only used for a short time. Add into that, needing to have the same exposure and from the same batch of glass when made so you might end up with both about the same. The color is not fixed and can fade over time back towards clear if kept in the dark. Taking a photo under different light/background can change their color, your lens without the white background and in different light could be much lighter in color.
If you are just looking for a violet lens and not worried about color, there would be many to chose from. Fair warning, they are not a give away item.
If you are just looking for a violet lens and not worried about color, there would be many to chose from. Fair warning, they are not a give away item.
I know the voices aren't real but damn they have some good ideas!
1925 Cut down pickup
1920 Dodge touring
1948 Ford F2 pickup
1925 Cut down pickup
1920 Dodge touring
1948 Ford F2 pickup
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Re: Looking for a MATE!
Sorry, I thought you were from down under......looking for a friend.
Ed aka #4
Ed aka #4
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Re: Looking for a MATE!
I have a few but none that dark. The color can be created by exposing a lends to Ultra Violet light as it reacts to the manganese in the glass, CAUTION: Exposure to UV light is dangerous to your eyes and skin. The explanation below mentions that much is dependent to the concentration of manganese in the glass. No information on how long an exposure is required to cause the color. Tanning beds, grow lights , bug zappers and Germicidal Lamps are sources of UV
Explanation https://www.nia.org/altered/
Purple, or “sun colored amethyst” is a popular color with glass collectors. Many of the purple shades we see in various insulator styles are actually secondary color transformations from their original color, the result of a natural color altering process brought on by prolonged exposure to sunlight. In some glass collecting circles, clear glass that has been sun purpled is looked upon with disgrace and is unacceptable. Because sun colored purple is the result of a natural transformation that occurred during an insulator’s time in service, this is the only form of color altering that is entirely acceptable within the hobby of insulator collecting. It is important that we examine this natural process that transforms some forms of glass to purple, allowing the reader to develop a better understanding of the artificial forms of color alterations subsequently following in this report.
The principal additive in glass that produces these varying shades of purple is manganese. Manganese, when measured properly, was used as a clarifying agent in glass to neutralize the blue-green coloring effects of the naturally occurring iron impurities in raw glass, thus producing a clear or off-clear glass (at least as we perceive it within the wavelength that reaches our eye). Manganese is a sensitive reactor to electromagnetic radiation. Within the scope of electromagnetic radiation there is a low level amount emitted by our sun in the form of ultra violet light. Over a prolonged period of time, moderate to higher levels of manganese in glass will react to the ultra violet light from the sun, causing a “purpling” effect. Dependent upon the levels of manganese in the glass, this purpling or solarization can produce multiple graduations in color from a pink tint to moderately dark purple.
https://www.ehow.com/how_6730908_make-purple-glass.html
Special note in this "How To"
"American glass manufactured between 1860 and 1915 was made with manganese, which imbued the glass with an interesting trait; the glass turned purple when submitted to prolonged exposure to UV rays. Using sunlight to turn antique glass purple can be time-consuming, but you can speed the process up by using special UV lamps."
Last edited by TRDxB2 on Thu Jun 24, 2021 10:24 pm, edited 1 time in total.
The past is a great place and I don't want to erase it or to regret it, but I don't want to be its prisoner either.
Mick Jagger
Mick Jagger
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Re: Looking for a MATE!
I believe it takes many years of exposure to sunlight to purple glass. Most common glass won't do it. It may turn greenish, but it will not turn purple or anything close to it. I seem to have read that only some pre-WWI glass will turn purple. But Ford may have had a private source of glass, or they may have used reclaimed glass in lenses produced post-WWI.
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Re: Looking for a MATE!
Still looking for ONE mate to this Ford Model T script “H” head light lens - doesn’t have to be exactly the same violet (purple) color but would prefer same size! I know somebody has ONE of these because you broke the other! If you don’t want to sell me a mate - perhaps I’ll sell you mine.
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Re: Looking for a MATE!
The one I posted a link to in eBay has the same Script H as your example photo...
Jennifer
Jennifer
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Re: Looking for a MATE!
Since it appears to be a standard 'Ford H' lens, size should not be an issue. All 'Ford H' lenses should be the same size.
Purple headlamp lenses are an interesting anomaly. I am certainly no expert on the subject. But much of what I have read indicates that most glass that has turned purple is pre World War one. The European war created many shortages of various chemicals, including manganese. Because of this, glass manufacturers had to find other solutions and change their formulas, perhaps simply using much less manganese in the mix. The amount of manganese in the glass does affect the degree to which the glass will change color and how fast that change will occur.
While most manganese purple glass may have been manufactured before the European war, there are exceptions. Some Ford H lenses will turn color. Probably less than ten percent of them? Most will not. And they didn't begin making those until after 1920. I would speculate that Ford MAY have purchased some lenses from outside suppliers other than those that provided the majority of their lenses.
I find it interesting to note that Bausch and Lomb made very heavy glass headlamp lenses for high end automobiles. Such manufacturers as Pierce Arrow and Locomobile used Bausch and Lomb lenses. Many of the Bausch and Lomb lenses also turn purple (I may still have one of those?). And being fluted lenses, most of them are also post World War one.
Purple headlamp lenses are an interesting anomaly. I am certainly no expert on the subject. But much of what I have read indicates that most glass that has turned purple is pre World War one. The European war created many shortages of various chemicals, including manganese. Because of this, glass manufacturers had to find other solutions and change their formulas, perhaps simply using much less manganese in the mix. The amount of manganese in the glass does affect the degree to which the glass will change color and how fast that change will occur.
While most manganese purple glass may have been manufactured before the European war, there are exceptions. Some Ford H lenses will turn color. Probably less than ten percent of them? Most will not. And they didn't begin making those until after 1920. I would speculate that Ford MAY have purchased some lenses from outside suppliers other than those that provided the majority of their lenses.
I find it interesting to note that Bausch and Lomb made very heavy glass headlamp lenses for high end automobiles. Such manufacturers as Pierce Arrow and Locomobile used Bausch and Lomb lenses. Many of the Bausch and Lomb lenses also turn purple (I may still have one of those?). And being fluted lenses, most of them are also post World War one.
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Re: Looking for a MATE!
I probably have one. Post another photo of the lens laying on a standard new sheet of printer paper. That way I have a reference to base the shade of purple. Printer paper is a very very close standard of white. So my printer paper should look the same as your printer paper in the photo you post here. If not I can then adjust my choice of purple tint accordinally.
Re: Looking for a MATE!
You can purple the glass yourself with a special light bulb in a few days instead of years, if it has manganese in it.
Use a germacidal bulb and fixture, mount it in wooden box with a lid, plug it in and open it in a couple of weeks and see if anything happened.
Use all the precautions you can think of, in fact don't even thing of build one cause someone will electrocute themselves or burn their garage down.
Mine has worked for over 40 years with no problem that I know of. I bought the bulb (tube type) at a hardware way back when.
Use a germacidal bulb and fixture, mount it in wooden box with a lid, plug it in and open it in a couple of weeks and see if anything happened.
Use all the precautions you can think of, in fact don't even thing of build one cause someone will electrocute themselves or burn their garage down.
Mine has worked for over 40 years with no problem that I know of. I bought the bulb (tube type) at a hardware way back when.
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Re: Looking for a MATE!
The lenses that will purple have a chemical excess of manganese in the mix
(added to neutralize the iron oxides to make the glass clear). A commonly held
myth is that this color change takes years of UV (sun) exposure. Actually, the
color change is fairly rapid in strong sun exposure situations, and the piece in
question will reach its maximum depth of color potential within months. Where
the difference of color depth usually resides is in the chemical imbalance. The
more manganese beyond the chemical balance, the deeper the color.
I have a matched pair that are a little lighter that I would trade you for the
single you have, if interested.
(added to neutralize the iron oxides to make the glass clear). A commonly held
myth is that this color change takes years of UV (sun) exposure. Actually, the
color change is fairly rapid in strong sun exposure situations, and the piece in
question will reach its maximum depth of color potential within months. Where
the difference of color depth usually resides is in the chemical imbalance. The
more manganese beyond the chemical balance, the deeper the color.
I have a matched pair that are a little lighter that I would trade you for the
single you have, if interested.
More people are doing it today than ever before !
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Re: Looking for a MATE!
Purple one on EBAY, now.
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Re: Looking for a MATE!
Here is a picture of the lens on white printing paper per dobro1956 request!
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Re: Looking for a MATE!
Will look today to see if I have a match
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Re: Looking for a MATE!
I matched mine by buying one from eBay.
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Re: Looking for a MATE!
David, I sent you some pics of a couple lens. I have.
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Re: Looking for a MATE!
I realize that things often get changed during the life of a car. My 1921 which had been in storage for over 75 years had light purple lens' in it.