Thanks youngtug, that was a great link.
Have found that my ancestors not only made agricultural machinery after being thrown out of work at woollen/silk mill, but that they had cast at least one millwheel in small foundry they built nearby.
The wheel is still in existence in Exmouth stamped Berry & Son , Woodbury and was part of a mill at Withycombe which was knocked down in the 1960s. The mill wheel now forms part of floral display near the beach and a tangible piece of family history, thank goodness someone decided it was worthy of preservation.
So I am off to find more of Devon's watermill history.
Thanks again