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