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Flint Mill, 1740-1800 (Ref:L.T60.1921.0.0)

The flint mill was invented by Carlisle Spedding, a colliery manager in Cumberland, around the middle of the 18th century. It was designed to provide miners with a safer light than candles in an attempt to avoid setting off explosions. The flint mill consists of an iron frame containing two shafts geared together. In turning the handle on the end of one shaft, a steel disc on the other is made to …