3 Comments Posted by Rowan

wrote:
Like others have said, it's for rotating the flywheel manually.

Large steam engines start best from a specific position, so before starting they would need to rotate the flywheel into a specific spot. Chances are there was (or is) a mark somewhere on the flywheel to indicate to the operator where to rotate it too.
wrote:
this might be my favourite.
wrote:
these are wonderful. it's amazing they are still so intact, although i suppose tile holds up well.