I remember seeing pictures of an ingot from Taunton or Cumberland in one of the books. They were shaped kinda' like funnels with a small hole at the bottom. If the historical references to ingots I have come across are accurate, the ingots referred to in the old furnaces were not as described in the wikipedia definition. It is likely that the word ingot might have been used wrong back then.
Update:
After researching the word "ingot" , it definately is correctly used to describe a pig or other crude piece of metal derived from the furnace. However, I guarantee the description of the ingot at Martha is the piece I described...
Update:
After researching the word "ingot" , it definately is correctly used to describe a pig or other crude piece of metal derived from the furnace. However, I guarantee the description of the ingot at Martha is the piece I described...