Early form of mercury interrupter
1880
Mercury interrupter
1860-1890
App's clockwork interrupter
1890
Clockwork interrupter with wooden cover
1904
Interrupter for induction coil (early form)
1870
Jet interrupter with motor
1900
Electrical interrupter
Electrical interrupter
Coil of wire inside a glass tube with red painted ends
Large interrupter by Alfred Apps, London
Mercury interrupter and rectifier
1905-1909
Hammer break interrupter by Ducretet & Lejeune
Mackenzie Davidson interrupter by Cox
1902
Electrical interrupter
Mercury interrupter driven by an electric motor
1890-1899
Foucault-type mercury interrupter with twin Ruhmkorff commutators
Mercury interrupter
Mercury interrupter driven by an electric motor
1890-1899
Mercury interrupter and rectifier for induction-type deep x-ray therapy apparatus
1923
Four pole Wehnelt electrolytic interrupter
1910
Mercury Interrupter and Rectifier part of Low Voltage X-Ray Set
1918-1919