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to charles re: kiln glasses question (and viewing witness cones)

updated sat 1 sep 01

 

Charles Moore on fri 31 aug 01


Arnold,

I should have been clearer in my message about your advice. The glasses
that you recommend really do help. But there is more.

Before you advice, I was placing the cone packs too close to the peephole
before; I now place them about 10" from the peephole. I also now try to be
sure that I can see elements behind the cone pack. All this requires some
careful attention when loading the kiln, but it pays off in the long run.

My thanks to you, Arnold.

Charles
----- Original Message -----
From: "Arnold Howard"
To: "Charles Moore"
Sent: Friday, August 31, 2001 7:56 AM
Subject: To Charles Re: kiln glasses question (and viewing witness cones)


> Charles, thanks for your kind words.
>
> Arnold
> > > Tom Yocky asked a question about firing glasses.
> > >
> > > 9 or 10 years ago, we decided to sell firing safety glasses. I
> > > tested many types--blue, green--even a welder's hood.
> > >
> > > Paragon sells green firing safety glasses for $14. You can also
> > get
> > > them from most other kiln manufacturers.
> > >
> > > I have included, below, instructions for positioning witness
> > cones.
> > > This comes from one of our manuals.
> > >
> > > With best wishes,
> > >
> > > Arnold Howard
> > > Paragon Industries, Inc.
> > >
> > > How to Position Cones on the Shelf
> > >
> > > Position the witness cones so that you can see them through a
> > > peephole during firing. If the kiln takes longer than usual to
> > > fire, you may wonder if something has gone wrong and the kiln
> > is
> > > overfiring. But by seeing the cones, you will know how the
> > firing
> > > is progressing.
> > >
> > > If you follow these guidelines, you should be able to see the
> > cones
> > > even at cone 10:
> > >
> > > Place the cones 8" - 12" away from a peephole. Positioning them
> > > closer makes them difficult to see.
> > >
> > > Have enough space around the cones to keep them from touching a
> > > piece of ware when they bend.
> > >
> > > Position cones so that when viewed from the peephole, they are
> > > silhouetted by an element on the opposite kiln wall. (Keep
> > cones at
> > > least 2" from an element.)
> > >
> > > The element that silhouettes the cones should be level with the
> > > lower part of the cone. If the element is in line with the
> > upper
> > > part of the cone, you won't be able to see the cone when it
> > bends.
> > >
> > > If you use the three cone system, always have the higher
> > > temperature cone on the same side in every firing. Otherwise
> > you
> > > can lose track of which cone is which.
> > >
> > > Wear firing safety glasses when viewing the cones through the
> > > peephole.
> > >
> > >
> > >
> > >
> > > --- Tom Yocky wrote:
> > > > As I am new to the "Art" of firing, I am quickly
> > > > realizing that I need eye wear that will not only help
> > > > me see cones inside the kiln, but protect me from the
> > > > unseen rays coming out of the kiln bombarding my
> > > > eyeball as I strain to see that cones within. So,
> > > > What do you people recommend I get for electric firing
> > > > up to cone 6. I can get a pair of these glasses
> > > > easily form e-bay.
> > > > ---paste from ebay---
> > > > Crews Blackjack Welding Glasses**5.0 tint**
> > > > 5.0 tint
> > > > Lightweight polycarbonate lens
> > > > Metal alloy temples with non-slip head-grips
> > > > Meets or exceeds ANSI Z87.1 Standards
> > > > Provides 99.9% UV protection
> > > >
> > > > But will these work well for me? I'm sure they will
> > > > protect my eyes but will they also help me to see the
> > > > cones?
> > > > Thanks
> > > > Tom in Klamath Falls Oregon
> > > >
> > >
> > >
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