Re: Triplex ID codes

[somexuk]

Viv, try this link whichgives more information http://www.moreg.org.au/triplex_glass.htm good luck Alan Webster TA 3239 --- In mg-tabc@y..., "Viv James TraX Interconnect (Pty.) Ltd" wrote:

> TCs originally had TRIPLEX TOUGHENED windscreens. On one > example I have here, there is a dot above the "i" in Triplex and a

dot

> below the "e" of toughened. There is also an X below the "p" in

triplex

> and also above the "o" and "e" of Toughened. > > I am told that you can date the screen from this...........this

must be

> simple to one of you Nerds

[Peter Ross]

Viv, I looked at the web site Alan mentioned and can add: After the war, the word "laminated" also appeared at the bottom of the circle and you used the same decoding technique to determine the year since both words had 9 letters. First you guess the decade and then start counting from the beginning of the word to where the dot is below a letter. 1 is under T or L, 2 is under O or A etc. Your example with a dot under an E is either 1946 or 1948. You could amaze any car owner by glancing at the mark and saying "hmmm..1953, possibly 3rd quarter". You could get a laminated screen for a TC since they were required for racing. It's a bummer if the screen goes opaque in front of you from an errant stone thrown up by the car in front. Most competitors, however used the aero screens. Laminated screens were frowned on by the UK authorities because of the danger from shards of glass and may have been illegal after the MOT (safety inspection) started in 1959. Many pre war cars, notably the Austin 7, had laminated screens because they started to go yellow when the laminations started to separate or misty when water seeped into them. Aren't toughened screens illegal in the US? Cheers, Peter TC 8892

----- Original Message ----- From: "somexuk" alan@somex.freeserve.co.uk> To: mg-tabc@yahoogroups.com> Sent: Monday, April 22, 2002 12:03 PM Subject: [mg-tabc] Re: Triplex ID codes > Viv, > try this link whichgives more information > http://www.moreg.org.au/triplex_glass.htm > good luck > Alan Webster > TA 3239 > > --- In mg-tabc@y..., "Viv James TraX Interconnect (Pty.) Ltd" > wrote: > > > TCs originally had TRIPLEX TOUGHENED windscreens. On one > > example I have here, there is a dot above the "i" in Triplex and a > dot > > below the "e" of toughened. There is also an X below the "p" in > triplex > > and also above the "o" and "e" of Toughened. > > > > I am told that you can date the screen from this...........this > must be > > simple to one of you Nerds > > > > > Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/ > >

[murray arundell]

On my TC I have a Laminated Screen but Toughened Aero Screens. The reason being that with the screen if I get a rock it may well crack but I've still a screen of some sorts. I use Toughened Glass on the Aero Screens because the possibility of a shard coming off the edge should a stone hit the edge of a Laminated Glass Aero is a very real and scary! I'm in the glass industry and I have seen it. Cheers - Murray Arundell PS: For those of you in places where Toughened Glass made be banned for Auto use you can still get Toughened Aero Screens by taking a template of your existing Laminated ones to your local glassman and ask him to arrange for a toughened glass replacements to be made. No one has to know they are for auto use.......

----- Original Message ----- From: "Peter Ross" boltonmg@attbi.com> To: "T-ABC List" mg-tabc@yahoogroups.com> Sent: Tuesday, April 23, 2002 10:12 AM Subject: Re: [mg-tabc] Re: Triplex ID codes > Viv, > > I looked at the web site Alan mentioned and can add: > > After the war, the word "laminated" also appeared at the bottom of the > circle and you used the same decoding technique to determine the year since > both words had 9 letters. First you guess the decade and then start > counting from the beginning of the word to where the dot is below a letter. > 1 is under T or L, 2 is under O or A etc. Your example with a dot under an > E is either 1946 or 1948. > > You could amaze any car owner by glancing at the mark and saying > "hmmm..1953, possibly 3rd quarter". > > You could get a laminated screen for a TC since they were required for > racing. It's a bummer if the screen goes opaque in front of you from an > errant stone thrown up by the car in front. Most competitors, however used > the aero screens. Laminated screens were frowned on by the UK authorities > because of the danger from shards of glass and may have been illegal after > the MOT (safety inspection) started in 1959. Many pre war cars, notably the > Austin 7, had laminated screens because they started to go yellow when the > laminations started to separate or misty when water seeped into them. > Aren't toughened screens illegal in the US? > > Cheers, > Peter > TC 8892 > ----- Original Message ----- > From: "somexuk" alan@somex.freeserve.co.uk> > To: mg-tabc@yahoogroups.com> > Sent: Monday, April 22, 2002 12:03 PM > Subject: [mg-tabc] Re: Triplex ID codes > > > > Viv, > > try this link whichgives more information > > http://www.moreg.org.au/triplex_glass.htm > > good luck > > Alan Webster > > TA 3239 > > > > --- In mg-tabc@y..., "Viv James TraX Interconnect (Pty.) Ltd" > > wrote: > > > > > TCs originally had TRIPLEX TOUGHENED windscreens. On one > > > example I have here, there is a dot above the "i" in Triplex and a > > dot > > > below the "e" of toughened. There is also an X below the "p" in > > triplex > > > and also above the "o" and "e" of Toughened. > > > > > > I am told that you can date the screen from this...........this > > must be > > > simple to one of you Nerds > > > > > > > > > > Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/ > > > > > > > > > Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/ > > >

[Chip Old]

On Mon, 22 Apr 2002, Peter Ross wrote to T-ABC List:

> You could get a laminated screen for a TC since they were required for > racing.

They were also required in the US, so most TCs intended for US export (even before the advent of the TC/EXU) had Triplex Laminated glass. In the US, laminated glass is known as "Safety Glass". I guess it's safer than the plain plate glass used in the US before the introduction of Safety Glass, but...

> Aren't toughened screens illegal in the US?

Used to be. When I brought TC 6710 over from the UK in 1968 I was expecting to have to install Safety Glass in order to pass Maryland inspection. Luckily the inspector didn't notice. More recently someone in high place realized that people were suffering serious head injuries by imbedding their heads in Saftey Glass windshields and being sliced up by shards of glass still stuck to the flexible plastic center ply. There was a movement to switch to toughened glass (tempered glass in the US), but I don't know if it ever came to be. Hang on a moment while I go test the windshield in my wife's car... -- Chip Old 1948 M.G. TC TC6710 XPAG7430 NEMGTR #2271 Cub Hill, Maryland 1962 Triumph TR4 CT3154LO CT3479E fold@bcpl.net

[Ray]

Hi Guys, Windshields with plastic sandwiched in the center have been around since the thirties here in the US. I suppose that before then, they used regular window glass. I once heard Elizabeth Dole on TV tell an interviewer that before she got involved with the DOT, autos in the US used regular window glass! Proving once again that pols on both sides of the line are [i]STUPID[/i]. The reason that laminated w/s glass is still used is this: If a rock hits a laminated w/s, it makes a star. If your head penetrates the screen, you are sliced and diced going through as well as on the return trip. Hence, seat belts. If you hit a non-laminated w/s of safety glass with a stone , it falls into your lap. This is why the rest of the glass in the car, but not the w/s, is made of the stuff. W/s glasses now have a toughening, but not to the extent of safety glass, which is very brittle and breaks into cubes by design. The above is according to a friend who works as an engineer at the Ford glass plant here. Best, Ray ----- Original Message ----- From: "Chip Old" fold@bcpl.net> To: "MG-TABC" mg-tabc@yahoogroups.com> Sent: Monday, April 22, 2002 8:03 PM Subject: Re: [mg-tabc] Re: Triplex ID codes > On Mon, 22 Apr 2002, Peter Ross wrote to T-ABC List:

> > > You could get a laminated screen for a TC since they

were required for

> > racing. > > They were also required

in the US, so most TCs intended for US export

> (even before the advent of

the TC/EXU) had Triplex Laminated glass. In

> the US, laminated

glass is known as "Safety Glass". I guess it's safer

> than the

plain plate glass used in the US before the introduction of

> Safety

Glass, but...

> > > Aren't toughened screens illegal in the

US?

> > Used to be. When I brought TC 6710 over from the UK

in 1968 I was

> expecting to have to install Safety Glass in order to pass

Maryland

> inspection. Luckily the inspector didn't notice.

More recently someone

> in high place realized that people were suffering

serious head injuries

> by imbedding their heads in Saftey Glass

windshields and being sliced up

> by shards of glass still stuck to the

flexible plastic center ply. There

> was a movement to switch to

toughened glass (tempered glass in the US),

> but I don't know if it ever

came to be. Hang on a moment while I go test

> the windshield in my

wife's car...

> > -- > Chip

Old 1948 M.G. TC TC6710 XPAG7430 NEMGTR #2271

> Cub Hill,

Maryland 1962 Triumph TR4 CT3154LO CT3479E

>

fold@bcpl.net >

> > > > Your use of Yahoo! Groups is subject

to http://docs.yahoo.com/info/terms/

> >

[Frank O_ The Mountain]

In a message dated 4/22/02 17:30:33 Pacific Daylight Time, arundell@ecn.net.au writes: > Murray, is toughened the same as "Tempered" as in my Arnolt?...... shatters into a zillion little pieces when hit?? Terry

[seabrook@en.com]

Peter & Group, My 1946 TC still has the original windscreen & marked TRIPLEX with a dot over the "P" & TOUGHENED with a dot & a "P" under the "H". Any ideas what the "P" is for? So my piece of glass was made in Oct, Nov, Dec of 1945 if I am reading this correctly? Craig Seabrok TC/0911 Peter Ross wrote:

> > Viv, > > I looked at the web site Alan mentioned and can add: > > After the war, the word "laminated" also appeared at the bottom of the > circle and you used the same decoding technique to determine the year since > both words had 9 letters. First you guess the decade and then start > counting from the beginning of the word to where the dot is below a letter. > 1 is under T or L, 2 is under O or A etc. Your example with a dot under an > E is either 1946 or 1948. > > You could amaze any car owner by glancing at the mark and saying > "hmmm..1953, possibly 3rd quarter".

[kwcp]

Craig: My glass dates to the third quarter of 1947. The cars buld date id 11/26/47. The glass says toughened, no reference to laminated. There are a few minor chips here and there but I am amazed that that it's still there after 50 plus years. Ken TC 4147 seabrook@en.com wrote:

> Peter & Group, > My 1946 TC still has the original windscreen & marked TRIPLEX with a > dot over the "P" & TOUGHENED with a dot & a "P" under the "H". Any ideas > what the "P" is for? So my piece of glass was made in Oct, Nov, Dec of > 1945 if I am reading this correctly? > > Craig Seabrok > TC/0911 > > Peter Ross wrote: > > > > Viv, > > > > I looked at the web site Alan mentioned and can add: > > > > After the war, the word "laminated" also appeared at the bottom of the > > circle and you used the same decoding technique to determine the year since > > both words had 9 letters. First you guess the decade and then start > > counting from the beginning of the word to where the dot is below a letter. > > 1 is under T or L, 2 is under O or A etc. Your example with a dot under an > > E is either 1946 or 1948. > > > > You could amaze any car owner by glancing at the mark and saying > > "hmmm..1953, possibly 3rd quarter". > > > > Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/