Afterwards it closes the contact again to attract another top of the ring... This is how a Wheatstone is working.... Mainly french maker used this system.
This one is made by Pericaud, Paris around 1890. Working with a battery 4.5 V.High 20,5 cm/8 inch - diameter base 10 cm/3.9 inch. Induction coil in good working condition base 30 x 19 cm high 19 cm.
11.8 x 7.5 inch high 7.5 inch. The coil is already working with a 4.5 V battery.3 geissler tubes - two of them length 20cm/7.9 inch, one 12 cm/4.7 inch. One heavy magnet, one Leyden jar, one lamp with a swan light bulb I had it. Glowing with 12 V, wooden box google translate didn't provide a good.
Translation for this device: Funkenstrecke. One stand with 5 clocks, glas can be put on instead of the clocks. If you have any questions you are welcome and I will try to answer as soon.
Thanks a lot for your interest! TRIXUM: Mobil-optimierte Auktionsvorlagen und Bilder-Hosting. The item "Early antique motor/rotator, part II of an electrostatic collection" is in sale since Wednesday, February 26, 2020. This item is in the category "Antiques\Science & Medicine (Pre-1930)\Scientific Instruments\Other Antique Science Equip".
The seller is "tizie2008" and is located in Sévery. This item can be shipped worldwide.