Please note that we have temporarily paused our iconic Underground Tours until April 2025, to install a brand new winding engine. The Museum remains open with a brand-new Time Tunnel experience now bookable. Underground Tours can now be booked and will be back on 2 April 2025.
The Lilly controller is a safety device which stops winding cages moving too fast, thereby protecting against overwinds. The Lilly used speed controllers to slow the winder when it was getting close to either the pit top or pit bottom.
