Lis Allison on tue 11 aug 09
Hello List,
I have what I think is a Ratcliffe jigger/jolley machine. It is very old
and has no nameplate or any id on it, but I think it is a Ratcliffe
because the housing is their particular blue.
The electric motor is showing signs of trouble. The copper coil is sagging
badly enough to show outside the housing. The machine works fine, except
for trouble starting on the nights that there is too much power draw on
the grid and my studio doesn't get the full 240 amps or whatever. Then I
have to turn off the lights, start the jigger, turn the lights back on.
Does anyone know any way I can get a new motor? Or another one that fits?
Failing that, what do you mechanical experts think of me buying a new,
1/2HP electric wheel, removing the workings from whatever frame it comes
in (I'm used to Brent wheels), and replacing the wheel portion of the
jigger with that? Shouldn't that be quite possible?
I depend on this machine a lot. I sell dozens of plates in four sizes, and
could never throw them by hand and sell them at the price I do. Plus these
stack perfectly so they sell to those who might not appreciate hand-thrown
ones.
Ideas?
Lis
--
Elisabeth Allison
Pine Ridge Studio
www.Pine-Ridge-Studio.blogspot.com
James Freeman on tue 11 aug 09
On Tue, Aug 11, 2009 at 7:21 AM, Lis Allison wrote:
...snip...
> The electric motor is showing signs of trouble. The copper coil is saggin=
g
> badly enough to show outside the housing. The machine works fine, except
> for trouble starting on the nights that there is too much power draw on
> the grid and my studio doesn't get the full 240 amps or whatever. Then I
> have to turn off the lights, start the jigger, turn the lights back on.
>
> Does anyone know any way I can get a new motor? Or another one that fits?
>
Lis...
Two options: First, remove the motor and take it to an electric motor
repair shop (most bigger cities will have at least one Check your
phone directory for "electric motor repair"). They can rewind the
armature, replace brushes and bearings, or whatever else it might
need. Second option is to purchase a new motor. Most have standard
frame sizes/configurations and standard shaft sizes. Any electric
motor dealer, probably the same shop that does the repairs, can order
a replacement motor with the same RPMs, direction of rotation, and
electrical requirements. To give you an idea of cost, I recently had
to replace the motor on my tablesaw (cheap motor, not worth
rebuilding). A brand new Baldor 240 volt TEFC (totally enclosed, fan
cooled) motor cost me about $170. Much cheaper and easier than
retrofitting the guts from a $1000 wheel!
Have fun.
...James
James Freeman
"All I say is by way of discourse, and nothing by way of advice. I
should not speak so boldly if it were my due to be believed."
-Michel de Montaigne
http://www.jamesfreemanstudio.com
http://www.flickr.com/photos/jamesfreemanstudio/
http://www.jamesfreemanstudio.com/clayart/
Donn Buchfinck on tue 11 aug 09
Where was the machine built.
Look on the motor and there should be a plate that describes all the
information about what type of motor it is.
Speed,
RPM
Amps
manufacturer
where are you at?
I have bought electric motors from these people
very reasonable
_https://www.surpluscenter.com/home.asp_
(https://www.surpluscenter.com/home.asp)
Donn Buchfinck
_www.donnbuchfinck.com_ (http://www.donnbuchfinck.com)
_www.youtube.com/bayareaartist999_
(http://www.youtube.com/bayareaartist999)
Lorraine Pierce on tue 11 aug 09
Hi Liz, loved your sheep mugs; my sister is a Maine island woman and was
very busy this year with her flock and the lambing. I think, after seeing
yours, I must make her some sheep mugs. Now that the golden years have
arrived for me I no longer work with cone 10 reduction and my gas kiln, I
am starting to use underglazes at ^6 electric and becoming interested in
slips and brushwork . Your non clumping slip sounds great...would you share
the recipe? The last pictoral mugs I made I had to take a dremel tool to th=
e
clay-slip burrs. Do you decorate your mugs like majolica with with designs
painted on the raw glaze or are the green pots slipped then decorated raw,
bisqued, then a clear glaze put over all? Or yet another technique? I shall
master this yet with a little help from my friends, Thank you Liz,hope to
hear from you. Sorry I have no jigger info...only sheep and clay! Lori
Pierce in Orange Park, Fl.
On Tue, Aug 11, 2009 at 7:21 AM, Lis Allison wrote:
> Hello List,
>
> I have what I think is a Ratcliffe jigger/jolley machine. It is very old
> and has no nameplate or any id on it, but I think it is a Ratcliffe
> because the housing is their particular blue.
>
> The electric motor is showing signs of trouble. The copper coil is saggin=
g
> badly enough to show outside the housing. The machine works fine, except
> for trouble starting on the nights that there is too much power draw on
> the grid and my studio doesn't get the full 240 amps or whatever. Then I
> have to turn off the lights, start the jigger, turn the lights back on.
>
> Does anyone know any way I can get a new motor? Or another one that fits?
>
> Failing that, what do you mechanical experts think of me buying a new,
> 1/2HP electric wheel, removing the workings from whatever frame it comes
> in (I'm used to Brent wheels), and replacing the wheel portion of the
> jigger with that? Shouldn't that be quite possible?
>
> I depend on this machine a lot. I sell dozens of plates in four sizes, an=
d
> could never throw them by hand and sell them at the price I do. Plus thes=
e
> stack perfectly so they sell to those who might not appreciate hand-throw=
n
> ones.
>
> Ideas?
>
> Lis
>
> --
> Elisabeth Allison
> Pine Ridge Studio
> www.Pine-Ridge-Studio.blogspot.com
>
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