Name/Title
Lockey's Coil MachineEntry/Object ID
2013.3.50Description
The revolving spring arm makes and breaks electric contact with the notched circles of different metals. If the spring is of the same metal as the circle there will be a different colored spark for each metal. This is listed in Pike's 1856 catalogue as "Lockey's Coil Machine, with Scintillating Circle $12.00."
Bought of E.M. Clarke, London, in 1839 for five pounds, five.Collection
Moosnick Museum - Scientific Apparatus
