The Middleport Pottery of Burgess and Leigh (opened 1888)  

The filtered clay

 

Location 6 on the index diagram

The raw clay has been liquefied in the blungers to allow the impurities and grit to be removed.
This slip has been put through the filter press and as can be seen below the result is 'cakes' of clean, filtered and uniform clay.

 

The filtered clay - ready for the pug mill

Previous is the filter presses
Next is the pug mill

questions/comments/contributions? email: Steve Birks