What are these circular symbols near shafts on this mine plan? Why do some shafts have them and some don't? Are they whims? Why does the angle of the line in them vary?
What is this mine plan symbol?
- Thread starter aricooperdavis
- Start date
I think they're whim engines - here's another example from an older 1821 survey that actually seems to show the chains running to the shaft heads!
Definitely Horse Whims, they were quite common to include on some of the early Victorian or Regency mine plans. Quite a few on some of the Wheal Lushington plans aswell https://largeimages.bgs.ac.uk/seadragon/mra-amps.html?id=00109WBU
Literally next door to what you were looking at! XD