snail-wheel
Noun
Meaning
snail-wheel (plural snail-wheels)
In some striking timepieces, a rotating piece with a spiral periphery having notches so arranged as to determine the number of strokes made on the bell.
Noun
snail-wheel (plural snail-wheels)
In some striking timepieces, a rotating piece with a spiral periphery having notches so arranged as to determine the number of strokes made on the bell.