I wonder, do you need a coffee machine for the interior?
I just don’t see any other benefit in it.
We have a number of these and similar items. Let's see if this helps:
5 is a ceramic disk with a cotton coffee filter fitted over it (7 is a spare filter). Put 5 in 3, filter up. Pull the spring-loaded hook down and hook it on the bottom of 3. Put ground coffee in the top of 3.
Put the water in 2, then fit the 3/5 assembly into 2 with the red rubber gasket (6 is a spare gasket) making a good seal.
Place an alcohol burner under 2 and light it. The water will eventually boil and be forced up through the bottom of 3, through the filter and into the upper chamber of 3 where the coffee is. Allow the water to continue to bubble for the desired time- longer = stronger coffee. When that time is up, extinguish the flame.
As the air and residual water in 2 cools, it will suck the coffee down from the upper 3 chamber, through the filter and into 2.
Carefully remove the 3/5 assembly from 2 and place 3/5 in stand 4.
You can now grab 8 by the black handle and pour coffee from 2 into 9, the unseen coffee cup.
Though I did number 1 and 2 differently, they're basically the same thing 1/8 is a spare. Why I did that and left the stands as both 8 is a mystery! LOL! 2 can be removed from 8 once cool by loosening the knurled nut behind it, which will loosen the clamp on 8 that holds 2.
Hope this helps!
Chuck
