EDWIN GOULD on wed 11 nov 98
Despite welders glasses and blowing the cones I am still having trouble
seeing them at cone 6-10. Are there other ways of enhancing contrast?
Ed Gould
Mary Van Peursem on thu 12 nov 98
Hold a hair dryer a few inches from the peep for as long as it takes to
clear the atmosphere. Works great! Must be something wrong with
this idea-too simple! Be sure the dryer is turned on as it nears the
peep to avoid melting the thing at first try.
Tom Wirt on thu 12 nov 98
>----------------------------Original message----------------------------
>Despite welders glasses and blowing the cones I am still having trouble
>seeing them at cone 6-10. Are there other ways of enhancing contrast?
>Ed Gould
Ed
This was suggested some time ago. Wipe a bit of Iron Oxide down one edge of the
cone, facing you. It will appear as a dark line
At the time it was posted, there were warnings that it would change the melt
temp., although in side by side tests (4 of them), we could see no difference.
Tom
Kenneth D. Westfall on thu 12 nov 98
Ed,
Yes, I feel that the cones are much easier to see with didymium lenses,
which block the infrared rays as a bonus. These type lenses are often used
by glassblowers and other glass workers. These are what our optometrist
recommended, and they work quite well. They are available from places that
deal with glass workers' tools, etc. One place I know which used to offer
these lenses for sale(non-prescription) is Wale Apparatus Co., Inc. in
Hellertown, PA phone is 1-800-334-9253. Your optometrist can get a
prescription for you in this lens material if you need, which is what
Kenneth has done.
Looking through rose colored glasses....
Tracey
Tracey L. Westfall
Pine Hill Pottery
RD#2 Box 6AA
Harrisville, WV 26362
pinehill@ruralnet.org
Steven Roberts on thu 12 nov 98
If you insert the end of a long steel rod into the peep, it will act as a
heat sink, pulling away enough heat to darken the cones. Don't push them
over with the rod, though. Blowing may introduce small chunks of softbrick
or other crumbly stuff into the kiln, which means onto your pots. Also,
don't stack cones too close to a pot - some distance helps to make them
more visible.
>----------------------------Original message----------------------------
>Despite welders glasses and blowing the cones I am still having trouble
>seeing them at cone 6-10. Are there other ways of enhancing contrast?
>Ed Gould
Edward Cowell on fri 13 nov 98
I find I can see the cones clearer if I remove the peeps from two holes -
not just one - and wait a few seconds before peering in (wearing protective
goggles, of course).
Laurie Cowell
Wil Haslup on fri 13 nov 98
Hello EDWIN
On 11-Nov-98, you wrote:
> ----------------------------Original message----------------------------
> Despite welders glasses and blowing the cones I am still having trouble
> seeing them at cone 6-10. Are there other ways of enhancing contrast?
If you are in a reduction firing and it isn't critical to stay in reduction
for the entire firing you might nudge the damper open a bit to shift the
flame and reduce the cloudiness in the chamber.
Of course, once you see then put it back where it was.
Regards
--
-- Wil
-----------------------------------------------------
-- dhaslup@erols.com - http://www.erols.com/dhaslup -
-----------------------------------------------------
-----------------------------------------------------
Common sense is the collection of prejudices acquired by age eighteen.
-- Albert Einstein
-----------------------------------------------------
Jacquelyn Lumsden on fri 13 nov 98
>----------------------------Original message----------------------------
>Despite welders glasses and blowing the cones I am still having trouble
>seeing them at cone 6-10. Are there other ways of enhancing contrast?
>Ed Gould
I have always painted the facing side of the cone with some manganese
dioxide in water ( now wonder if that is very safe) but any oxide would do.
It shows a stripe in the brightness of the kiln. It is also helpful to
have a second peephole open so there is some clearing effect in front of
the one where you are looking.
Hope this helps.
Jacquelyn Lumsden
Waterloo, Ont.
Marcia Kindlmann on fri 13 nov 98
Subject: cone visibility
Ed Gould wrote,
> Despite welders glasses and blowing the cones I am still having
trouble
> seeing them at cone 6-10. Are there other ways of enhancing contrast?
I use a microscope illuminator lamp -- shine it into the peephole &
it picks out those cones clearly. (I'm wearing #5 green welders glasses while
doing this). Microscope illuminator bulbs can be had from an automotive
supply store for about $5. It's #1493, notable for a tiny, focusable filament.
It's called "instrument and microscope illuminator" bulb; 23 candlepower,
2.75 amps, 6.5 Volts. Has a dual contact bayonet-type socket. The dual
contact and that special filament distinguish the #1493 from similar (cheaper)
bulbs that do not provide intense enough light. What makes this work,
besides intensity, is
that its light is a much higher color-temperature (bluer)
than the color in the kiln at cone 10.
Now where to get the microscope illuminator -- a friend in the biology field?
Used scientific equipt. catalog? (They're about $180 new, not exactly to buy
just for cone viewing).
Marcia Kindlmann
-----------------------------
Steven Roberts on fri 13 nov 98
>
I was told by an engineer at Bouton's (manufacturer of didymium lenses)
that the material does not provide adequate protection against either
infrared or ultraviolet radiation. He did not feel that they would protect
the eyes from looking in kilns. Welder's glasses in shade 4 or 5, on the
other hand, do block such radiation and will protect your eyes. If you're
only concerned with visibility and not protection, then this won't be an
issue for you.
Steve
----------------------------Original message----------------------------
>Ed,
>Yes, I feel that the cones are much easier to see with didymium lenses,
>which block the infrared rays as a bonus. These type lenses are often used
>by glassblowers and other glass workers. These are what our optometrist
>recommended, and they work quite well. They are available from places that
>deal with glass workers' tools, etc. One place I know which used to offer
>these lenses for sale(non-prescription) is Wale Apparatus Co., Inc. in
>Hellertown, PA phone is 1-800-334-9253. Your optometrist can get a
>prescription for you in this lens material if you need, which is what
>Kenneth has done.
>Looking through rose colored glasses....
>Tracey
>
>
>Tracey L. Westfall
>Pine Hill Pottery
>RD#2 Box 6AA
>Harrisville, WV 26362
>pinehill@ruralnet.org
Vince Pitelka on fri 13 nov 98
>Hold a hair dryer a few inches from the peep for as long as it takes to
>clear the atmosphere. Works great! Must be something wrong with
>this idea-too simple! Be sure the dryer is turned on as it nears the
>peep to avoid melting the thing at first try.
What's wrong with this idea is that in most spy-holes there is accumulated
softbrick dust, and if you blow into the hole you blow this dust all over
your pots.
- Vince
Vince Pitelka - vpitelka@DeKalb.net
Home 615/597-5376, work 615/597-6801, fax 615/597-6803
Appalachian Center for Crafts
Tennessee Technological University
1560 Craft Center Drive, Smithville TN 37166
Edouard Bastarache on fri 13 nov 98
Hello Ed.
i wear light tinted safety glasses and a strong flashlight directed at the
cones,
it works fine.
Later,
Edouard Bastarache
edouardb@sorel-tracy.qc.ca
http://www.sorel-tracy.qc.ca/~edouardb/
----------
> De : Tom Wirt
> A : CLAYART@LSV.UKY.EDU
> Objet : Re: cone visibility
> Date : 12 novembre, 1998 02:32
>
> ----------------------------Original message----------------------------
> >----------------------------Original message----------------------------
> >Despite welders glasses and blowing the cones I am still having trouble
> >seeing them at cone 6-10. Are there other ways of enhancing contrast?
> >Ed Gould
>
>
> Ed
>
> This was suggested some time ago. Wipe a bit of Iron Oxide down one edge
of the
> cone, facing you. It will appear as a dark line
>
> At the time it was posted, there were warnings that it would change the
melt
> temp., although in side by side tests (4 of them), we could see no
difference.
>
> Tom
Fred Paget on fri 13 nov 98
You can see the cones if you use a flashlight!
That sounds nutty but the interior or the kiln at high temperature is
emitting light of one color. You get a really bright white beam type of
flashlight and shine it in the peep and it picks up the cones pretty well.
The light is whiter than the light coming from the hot surfaces.
I use a skin divers flashlight that is designed for use in daylight diving
where the diver wants to look in holes in the reef to see what might be
lurking in there. It has a very sharp beam.
>Despite welders glasses and blowing the cones I am still having trouble
>seeing them at cone 6-10. Are there other ways of enhancing contrast?
>Ed Gould
From Fred Paget, in marvelous Marin County, California, USA
Stephen Mills on fri 13 nov 98
In message , Mary Van Peursem writes
>----------------------------Original message----------------------------
>Hold a hair dryer a few inches from the peep for as long as it takes to
>clear the atmosphere. Works great! Must be something wrong with
>this idea-too simple! Be sure the dryer is turned on as it nears the
>peep to avoid melting the thing at first try.
>
That beats blowing through a piece of pipe and having to remember NOT to
suck at the wrong moment!
ouch!
Steve
--
Steve Mills
Bath
UK
home e-mail: stevemills@mudslinger.demon.co.uk
work e-mail: stevemills@bathpotters.demon.co.uk
own website: http://www.mudslinger.demon.co.uk
BPS website: http://www.bathpotters.demon.co.uk
David Orser on sat 14 nov 98
sometimes it is difficult to see the cones due to
placement in front of something that gives insuffcient contrast, or a hazy
atmosphere or something else. blowing in the peep can stir up softbrick
dust that will schmootz up your bowls/plates.... but, if if you gingerly,
insert a thin pipe and blow at the cones they cool off for a sec and allow
you to see them without disturbing things... yes, some of my studio mates
have looked on incredulously and w/ great fear as i do this, BUT, i did
not inhale!.......
Joy Holdread on sun 15 nov 98
In a message dated 11/11/98 2:58:36 PM US Mountain Standard Time,
edgould@erols.com writes:
> ----------------------------Original message----------------------------
> Despite welders glasses and blowing the cones I am still having trouble
> seeing them at cone 6-10. Are there other ways of enhancing contrast?
> Ed Gould
>
A darkly glazed pot behind the cones gives contrast.
Joy in Tucson
Ray Carlton on tue 17 nov 98
blowing the cones is ""EXTREMELY HAZARDOUS!!!!!!imagine what would happen
to your nice pink lungs if some of that hot burning gas managed to be
sucked inside you....i find a clear space behind the cones is good and if
reduction is heavy ease up for a minute or two and the kiln will clear up
and visibilty will be sharp
At 19:28 15/11/98 EST, you wrote:
>----------------------------Original message----------------------------
>In a message dated 11/11/98 2:58:36 PM US Mountain Standard Time,
>edgould@erols.com writes:
>
>> ----------------------------Original message----------------------------
>> Despite welders glasses and blowing the cones I am still having trouble
>> seeing them at cone 6-10. Are there other ways of enhancing contrast?
>> Ed Gould
>>
>A darkly glazed pot behind the cones gives contrast.
>Joy in Tucson
>
cheers Ray Carlton
McMahons Creek Victoria Australia
James Dapogny on tue 17 nov 98
>----------------------------Original message----------------------------
>In a message dated 11/11/98 2:58:36 PM US Mountain Standard Time,
>edgould@erols.com writes:
>
>> ----------------------------Original message----------------------------
>> Despite welders glasses and blowing the cones I am still having trouble
>> seeing them at cone 6-10. Are there other ways of enhancing contrast?
>> Ed Gould
Hi, Oddly enough, shining a flashlight in there works very well. It's
sort of amazing. Gail Dapogny in Ann Arbor-
Liz Dodge on wed 18 nov 98
Another way to see cones is to use a spray bottle adjusted to emit a
narrow stream of water. Open the peep and spray the water on the cones -
the water will cool and darken them enouth for you to see them. Doesn't
seem to harm the ware.
Liz Dodge
Berkeley, CA
>----------------------------Original message----------------------------
>Hello Ed.
>
>i wear light tinted safety glasses and a strong flashlight directed at the
>cones,
>it works fine.
>
>Later,
>
>Edouard Bastarache
>edouardb@sorel-tracy.qc.ca
>http://www.sorel-tracy.qc.ca/~edouardb/
>
>----------
>> De : Tom Wirt
>> A : CLAYART@LSV.UKY.EDU
>> Objet : Re: cone visibility
>> Date : 12 novembre, 1998 02:32
>>
>> ----------------------------Original message----------------------------
>> >----------------------------Original message----------------------------
>> >Despite welders glasses and blowing the cones I am still having trouble
>> >seeing them at cone 6-10. Are there other ways of enhancing contrast?
>> >Ed Gould
>>
>>
>> Ed
>>
>> This was suggested some time ago. Wipe a bit of Iron Oxide down one edge
>of the
>> cone, facing you. It will appear as a dark line
>>
>> At the time it was posted, there were warnings that it would change the
>melt
>> temp., although in side by side tests (4 of them), we could see no
>difference.
>>
>> Tom
>
Paul Lewing on wed 18 nov 98
Ray Carlton wrote:
>
> ----------------------------Original message----------------------------
> blowing the cones is ""EXTREMELY HAZARDOUS!!!!!!imagine what would happen to y
You've got to be ""KIDDING!!!!!! I blew into reduction kilns for
decades to see the cones and I don't think I ever once confused
blowing with sucking. Not to mention the fact that I'm not sure I
could suck hard enough to suck burning gas out of a kiln. And I think
my nice pink nose would have been jerked back and my nice red mustache
ignited long before my lungs were damaged.
Paul Lewing, Seattle
Steve Casey on thu 19 nov 98
The best way I have found to view the cones, especially in a gas kiln under
reduction, is to paint an edge of each cone with a mixture of red iron oxide
and water. As the kiln temperature grows, and becomes increasingly bright,
when you blow into the kiln, the oxide wash appears dark against the red
background.
Joy Holdread on fri 20 nov 98
----------------------------Original message----------------------------
> blowing the cones is ""EXTREMELY HAZARDOUS!!!!!!imagine what would happen to
y
You've got to be ""KIDDING!!!!!! I blew into reduction kilns for
decades to see the cones and I don't think I ever once confused
blowing with sucking. Not to mention the fact that I'm not sure I
could suck hard enough to suck burning gas out of a kiln. And I think
my nice pink nose would have been jerked back and my nice red mustache
ignited long before my lungs were damaged.
Paul Lewing, Seattle
Just because you've done something for years doesn't qualify it as a safe
procedure. But a mustache as a safety warning devise, I thought they were
only good for tickles. Yet another disadvantage of being born female, I must
depend on the melting mascara test.
Joy in Tucson
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