Tuning by machine

An improvement came with the application of lathe technology to bell tuning. This engraving shows the tuning machine employed by the Rudhall foundry in Gloucester. The machine was later moved to Whitechapel when the Gloucester firm was taken over. Note that unlike modern boring mills, the cutting tool revolved around the bell, rather than the bell around the tool. The machine was originally powered by a donkey, but was later converted to steam power.