Electrical interrupter
Mercury interrupter
1860-1890
App's clockwork interrupter
1890
Large interrupter by Alfred Apps, London
Hammer break interrupter by Ducretet & Lejeune
Clockwork interrupter with wooden cover
1904
Jet interrupter with motor
1900
Interrupter for induction coil (early form)
1870
Mackenzie Davidson interrupter by Cox
1902
Early form of mercury interrupter
1880
Electrical interrupter
Foucault-type mercury interrupter with twin Ruhmkorff commutators
Mercury interrupter
Mercury interrupter and rectifier
1905-1909
Mercury interrupter driven by an electric motor
1890-1899
Four pole Wehnelt electrolytic interrupter
1910