To one side of the conductor are attached two wooden rings which are positioned either side of the glass plate each having a row of metal collector pins running around the inner circumference. Other points on the brass conductor have dome type brass mounts on which brass chains can be hung to transmit the electrostatic charge to a Leyden jar or other experimental apparatus. Included is one example of later manufacture which is comprised of a wooden base and glass insulated rod, onto which numerous strands of crepe paper are affixed. When attached to the machine in operation, it is possible to see the paper strands lifting in the air as a result of the charge being transmitted across.
Invented in around 1800 by the Austrian Georg K Winter, the machine was considered a development on a single plate long sparking machine originally invented by the French physicist Jean Baptiste Le Roy in 1772. It was noted for its ability to develop long and dense sparks rather than the accumulation of high charges. Although this example does not have an associated maker's mark, it is almost certainly of European manufacture owing to the use of cherry wood for the base structure of the machine. This wonderful and imposing example is the largest of these rare machines that I have yet come across.Jason Clarke Antiques are happy to discuss carriage, condition or for any other queries, alternatively, you can also message us and we will endeavour to come back to you as soon as possible. This item is in the category "Antiques\Science/Medicine\Scientific Instruments".
The seller is "jason750_1" and is located in this country: GB. This item can be shipped to United Kingdom.