Miller Table

[Bonaro]

So many gizmos out there calling themselves a Miller Table...
Does anyone have a pic of the original Miller wave table?

It went out of production at least 40 years ago and I can't google a pic anywhere.
Where is Hoser John when I need him?

 

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[alloy_II]

A. H. STEBBINs
TABLE CONCENTRATOR
2 Sheets-SheetFiled April 12, 1922

 

[Bonaro]

A. H. STEBBINs
TABLE CONCENTRATOR
2 Sheets-SheetFiled April 12, 1922

That's a shaker table, not what I'm looking for

 

[RTR]

Home made 4 years ago 2'x4' (pix. while in building process)

 

[Assembler]

If you make a wide box for this mat you will have to get a much bigger pump to start with. However you can put way more material in the box at a given time. I recommend screening / classify to at least 100 mesh to start with. I think screening to 180 minus works better for flushing however no two people have the same values sizes and shapes of fines. You will have to experiment to see what works for you.

 

[Assembler]

As I stated in another thread I got lucky and bought 7 of these mats and 1 clear mat for around 1/2 of the going price as the mats were rejects and stored for a long time in there bent or folded shape. I'm in the process of slowing heating them to flatten them out.

I plan on putting them in a line at different angles to catch slightly different sizes as the material flows over them.

By the way I think these mats will work both wet and dry. I'm sure wet will catch more per amount. In my case I will be running hundreds of pounds over them at a time.

 

[Assembler]

Have not tested a little side to side motion yet on the above mat. I think it will spread out the material better so as to fill the mini channels better. Let me know if you try this out.
Thanks.

 

[alloy_II]

That's a shaker table, not what I'm looking for

Search Google patents like I did, you might have more sucess than i had.

 

[Assembler]

I think no matter what surface you decide to use make sure it has little to no surface tension / is very wet able / little to no air pockets.

Any one use sound waves below the surface?
Any one use magnets below the surface?

 

[Bonaro]

Search Google patents like I did, you might have more sucess than i had.

I tried that but couldn't find what I was looking for

 

[arizau]

So many gizmos out there calling themselves a Miller Table...
Does anyone have a pic of the original Miller wave table?

It went out of production at least 40 years ago and I can't google a pic anywhere.
Where is Hoser John when I need him?

Pardon my ignorance but, what are the operational and physical differences between miller tables as regularly displayed on this forum and the type in question? If you have seen pictures of one was it possibly in a magazine or catalog? The internet itself is only about 40 years old so a pic would likely come from an old printed source or a relatively recent internet post.

 

[Assembler]

Pardon my ignorance but, what is the difference between miller tables as regularly displayed on this forum and the type in question? If you have seen pictures of one was it possibly in a magazine or catalog? The internet itself is only about 40 years old so a pic would likely come from an old source.

A smooth chalkboard surface is for the very fines or finishing step. Still useful for cleanup.

Having a few other steps will speed up the process and be a little more enjoyable. When in doubt change it up a little in the process.

Anyone use soundwaves in there process?

 

[Assembler]

Best to have a number of different surfaces for different materials.

 

[russau]

The only original picture I know of was a picture ( Miller Table )that was posted years back (somewhere??) and it was made of black slate with fine slits cut across the slate . and that was it . KISS was the ideology. I made a copy of it but sold it to a Show Me Gold club member in the K.C. Misery area. I believe it was used and passed around at the Dredge Earth First Rally in Oregon back in 2003 ( ? )

 

[Assembler]

The only original picture I know of was a picture ( Miller Table )that was posted years back (somewhere??) and it was made of black slate with fine slits cut across the slate . and that was it . KISS was the ideology. I made a copy of it but sold it to a Show Me Gold club member in the K.C. Misery area. I believe it was used and passed around at the Dredge Earth First Rally in Oregon back in 2003 ( ? )

Slate rock is very good for very fines. One can use a tile type saw to cut up the size piece you want.

 

[Bonaro]

The only original picture I know of was a picture ( Miller Table )that was posted years back (somewhere??) and it was made of black slate with fine slits cut across the slate . and that was it . KISS was the ideology. I made a copy of it but sold it to a Show Me Gold club member in the K.C. Misery area. I believe it was used and passed around at the Dredge Earth First Rally in Oregon back in 2003 ( ? )

Russ, I was there at the DEF rally and yes, that is the one I am talking about. It was big, about 2'x4' and Grivy was using it a lot.

 

[N-Lionberger]

I remember there being an article somewhere I think it was maybe Popular Mining magazine about using a dredge box as a large Miller table.

 

[Assembler]

I remember there being an article somewhere I think it was maybe Popular Mining magazine about using a dredge box as a large Miller table.

This would speed up the sorting process just because of a lot more surface area. I will take a much larger water pump to make it work

 

[russau]

The key to making a Miller Box work good is to slow the water down with NO ripples in the waters surface , like a sheet of glass. And use a SMALL amount of a surfactant to get the fine gold to drop out of suspension. Just enough water flow to move all but the fine gold. It worked for me ! Lots of materials will work O.K. for the bed BUT slate worked best for me and I tried almost everything!

 

[Assembler]

The key to making a Miller Box work good is to slow the water down with NO ripples in the waters surface , like a sheet of glass. And use a SMALL amount of a surfactant to get the fine gold to drop out of suspension. Just enough water flow to move all but the fine gold. It worked for me ! Lots of materials will work O.K. for the bed BUT slate worked best for me and I tried almost everything!

Dead level for the glass smooth surface is very important. A slow process at this stage.