Marcia Selsor on sat 6 may 00
Mortar Mixers are NOT like cement mixers. The whole barrel turns in a
cement mixer. A Mortar mixer is just like a Blue Bird Mixer which scapes
the barrel with turning blades.
vince pitelka wrote:
>
> ----------------------------Original message----------------------------
> > ----------------------------Original message----------------------------
> > I think a mortar mixer with retrofitted neoprene blades would work. It
> > would be like a large dough mixer.IMHO. I missed the original question
> > but I am assuming that this idea is for mixing clay. Sorry if I jumped
> > into a wrong answer.
> > Marcia
>
> Marcia -
> I cannot see how this would work, regardless of the type of blades one
> installs in a conventional barrel-type cement mixer. The dough mixer has a
> stationary hopper, and a set of moving blades. The blades smear the clay
> against the hopper walls. In a standard barrel-type cement mixer, the drum
> and the blades all rotate as a single unit. If you try to mix plastic clay,
> it will reach a certain point of thickness, long before plastic working
> consistency, and then the whole mass will simply rotate with the barrel,
> accomplishing nothing more. It is a nice idea, but I have not seen any way
> to make it work. But I would love to see someone come up with a way!
> Best wishes -
> - Vince
>
> Vince Pitelka
> Home - vpitelka@dekalb.net
> 615/597-5376
> Work - wpitelka@tntech.edu
> 615/597-6801 ext. 111, fax 615/597-6803
> Appalachian Center for Crafts
> Tennessee Technological University
> 1560 Craft Center Drive, Smithville TN 37166
> http://www.craftcenter.tntech.edu/
--
Marcia Selsor
selsor@imt.net
http://www.imt.net/~mjbmls
http://www.imt.net/~mjbmls/spain99.html
http://www.silverhawk.com/ex99/selsor/welcome.html
Vince Pitelka on mon 8 may 00
>----------------------------Original message----------------------------
>Mortar Mixers are NOT like cement mixers. The whole barrel turns in a
>cement mixer. A Mortar mixer is just like a Blue Bird Mixer which scapes
>the barrel with turning blades.
Marcia -
You are referring to the hopper-type cememt mixers. They are much more rare
than the barrel type, and far more expensive. This discussion was about
inexpensive barrel-type cement mixers. If a person were fortunately enough
to get ahold of a hopper-type cement mixer it would do at least as good a
job as a dough-mixer. I don't get the thing about the neoprene blades,
though. You need rigid blades to smear the clay against the outer walls of
the hopper in order to do any good.
Best wishes -
- Vince
Vince Pitelka
Home - vpitelka@DeKalb.net
615/597-5376
Work - wpitelka@tntech.edu
615/597-6801 ext. 111, fax 615/597-6803
Appalachian Center for Crafts
Tennessee Technological University
1560 Craft Center Drive, Smithville TN 37166
http://www.craftcenter.tntech.edu/
Marcia Selsor on mon 8 may 00
Dear Vince
Right. But the mortar mixer hopper type that I had came with blades that
were bolted to hold (sandwiched) a hard maaterial which could be
replaced as it wore out after scaping abrasive materials on the edge of
the walls.
It seemed to me that hard rubber could be put in there to scrap clay off
the walls. I got one at a brick company auction for $275 many years
ago.. Unfortunately I no longer have it. But I have never heard mortar
mixers referred to as cement mixers. -Hopper type that dumps the
material. That was a great little machine. -wish I still hade it.
Marcia
Vince Pitelka wrote:
>
> ----------------------------Original message----------------------------
> >----------------------------Original message----------------------------
> >Mortar Mixers are NOT like cement mixers. The whole barrel turns in a
> >cement mixer. A Mortar mixer is just like a Blue Bird Mixer which scapes
> >the barrel with turning blades.
>
> Marcia -
> You are referring to the hopper-type cememt mixers. They are much more rare
> than the barrel type, and far more expensive. This discussion was about
> inexpensive barrel-type cement mixers. If a person were fortunately enough
> to get ahold of a hopper-type cement mixer it would do at least as good a
> job as a dough-mixer. I don't get the thing about the neoprene blades,
> though. You need rigid blades to smear the clay against the outer walls of
> the hopper in order to do any good.
> Best wishes -
> - Vince
>
> Vince Pitelka
> Home - vpitelka@DeKalb.net
> 615/597-5376
> Work - wpitelka@tntech.edu
> 615/597-6801 ext. 111, fax 615/597-6803
> Appalachian Center for Crafts
> Tennessee Technological University
> 1560 Craft Center Drive, Smithville TN 37166
> http://www.craftcenter.tntech.edu/
--
Marcia Selsor
selsor@imt.net
http://www.imt.net/~mjbmls
http://www.imt.net/~mjbmls/spain99.html
http://www.silverhawk.com/ex99/selsor/welcome.html
Donald Burroughs on mon 8 may 00
Actually I have seen other potters using a dough mixer with satisfactory
results. Pietro Maddelena and Franco Balducci both from the region of
Tuscany, Italy were using this machine when I was there in '92.
Donald Burroughs
Visit The vessel Online @
http://www.autobahn.mb.ca/~donaldo
-----Original Message-----
From: Ceramic Arts Discussion List [mailto:CLAYART@LSV.UKY.EDU]On Behalf
Of Marcia Selsor
Sent: May 6, 2000 10:08 PM
To: CLAYART@LSV.UKY.EDU
Subject: Mortar Mixer vs Cement Mixer
----------------------------Original message----------------------------
Mortar Mixers are NOT like cement mixers. The whole barrel turns in a
cement mixer. A Mortar mixer is just like a Blue Bird Mixer which scapes
the barrel with turning blades.
vince pitelka wrote:
>
> ----------------------------Original message----------------------------
> > ----------------------------Original message----------------------------
> > I think a mortar mixer with retrofitted neoprene blades would work. It
> > would be like a large dough mixer.IMHO. I missed the original question
> > but I am assuming that this idea is for mixing clay. Sorry if I jumped
> > into a wrong answer.
> > Marcia
>
> Marcia -
> I cannot see how this would work, regardless of the type of blades one
> installs in a conventional barrel-type cement mixer. The dough mixer has
a
> stationary hopper, and a set of moving blades. The blades smear the clay
> against the hopper walls. In a standard barrel-type cement mixer, the
drum
> and the blades all rotate as a single unit. If you try to mix plastic
clay,
> it will reach a certain point of thickness, long before plastic working
> consistency, and then the whole mass will simply rotate with the barrel,
> accomplishing nothing more. It is a nice idea, but I have not seen any
way
> to make it work. But I would love to see someone come up with a way!
> Best wishes -
> - Vince
>
> Vince Pitelka
> Home - vpitelka@dekalb.net
> 615/597-5376
> Work - wpitelka@tntech.edu
> 615/597-6801 ext. 111, fax 615/597-6803
> Appalachian Center for Crafts
> Tennessee Technological University
> 1560 Craft Center Drive, Smithville TN 37166
> http://www.craftcenter.tntech.edu/
--
Marcia Selsor
selsor@imt.net
http://www.imt.net/~mjbmls
http://www.imt.net/~mjbmls/spain99.html
http://www.silverhawk.com/ex99/selsor/welcome.html
Marcia Selsor on mon 8 may 00
Dear Vince
Right. But the mortar mixer hopper type that I had came with blades that
were bolted to hold (sandwiched) a hard maaterial which could be
replaced as it wore out after scaping abrasive materials on the edge of
the walls.
It seemed to me that hard rubber could be put in there to scrap clay off
the walls. I got one at a brick company auction for $275 many years
ago.. Unfortunately I no longer have it. But I have never heard mortar
mixers referred to as cement mixers. -Hopper type that dumps the
material. That was a great little machine. -wish I still hade it.
Marcia
Vince Pitelka wrote:
>
> ----------------------------Original message----------------------------
> >----------------------------Original message----------------------------
> >Mortar Mixers are NOT like cement mixers. The whole barrel turns in a
> >cement mixer. A Mortar mixer is just like a Blue Bird Mixer which scapes
> >the barrel with turning blades.
>
> Marcia -
> You are referring to the hopper-type cememt mixers. They are much more rare
> than the barrel type, and far more expensive. This discussion was about
> inexpensive barrel-type cement mixers. If a person were fortunately enough
> to get ahold of a hopper-type cement mixer it would do at least as good a
> job as a dough-mixer. I don't get the thing about the neoprene blades,
> though. You need rigid blades to smear the clay against the outer walls of
> the hopper in order to do any good.
> Best wishes -
> - Vince
>
> Vince Pitelka
> Home - vpitelka@DeKalb.net
> 615/597-5376
> Work - wpitelka@tntech.edu
> 615/597-6801 ext. 111, fax 615/597-6803
> Appalachian Center for Crafts
> Tennessee Technological University
> 1560 Craft Center Drive, Smithville TN 37166
> http://www.craftcenter.tntech.edu/
--
Marcia Selsor
selsor@imt.net
http://www.imt.net/~mjbmls
http://www.imt.net/~mjbmls/spain99.html
http://www.silverhawk.com/ex99/selsor/welcome.html
Vince Pitelka on tue 9 may 00
>Dear Vince
>Right. But the mortar mixer hopper type that I had came with blades that
>were bolted to hold (sandwiched) a hard maaterial which could be
>replaced as it wore out after scaping abrasive materials on the edge of
>the walls.
>It seemed to me that hard rubber could be put in there to scrap clay off
>the walls. But I have never heard mortar
>mixers referred to as cement mixers. -Hopper type that dumps the
>material.
Marcia -
I have had chances to buy a few of them over the years, but have never
needed them. In my experience they are usually referred to as cement-mixers
- just a different variety. Either kind can be used to mix any variety of
mortar or cement. The hopper types are more efficient than the barrel type,
and as I said, far more expensive.
The important thing to realize with a hopper-type clay-mixer is that you do
not WANT the blades to scrape the clay off the walls. The friction of the
clay against the walls is responsible for much of the work. There should
always be a space between the ends of the blades and the hopper walls. The
blade-clearance, where the clay is squished through this space as the blades
rotate, is where some of the best mixing takes place. More clay is
constantly pressed against the walls, so this clay gets very well mixed. If
the blades were to scrape the walls, the clay would tend to simply rotate in
one big slug.
Best wishes -
- Vince
Vince Pitelka
Home - vpitelka@DeKalb.net
615/597-5376
Work - wpitelka@tntech.edu
615/597-6801 ext. 111, fax 615/597-6803
Appalachian Center for Crafts
Tennessee Technological University
1560 Craft Center Drive, Smithville TN 37166
http://www.craftcenter.tntech.edu/
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