fining pot

from The Collaborative International Dictionary of English v.0.48
Fining \Fin"ing\, n.
   1. The act of imposing a fin?.
      [1913 Webster]

   2. The process of fining or refining; clarification; also
      (Metal.), the conversion of cast iron into suitable for
      puddling, in a hearth or charcoal fire.
      [1913 Webster]

   3. That which is used to refine; especially, a preparation of
      isinglass, gelatin, etc., for clarifying beer.
      [1913 Webster]

   {Fining pot}, a vessel in which metals are refined. --Prov.
      xvii. 3.
      [1913 Webster]
    
from Easton's 1897 Bible Dictionary
Fining pot
a crucible, melting-pot (Prov. 17:3; 27:21).
    

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