An extract from Fergusons Electricity of 1870 relates that. The two rubbers, one of which is shewn on the outside are triangular pieces of wood, covered with a padding of one or two layers of flannel, enclosed in leather, and they present a flat hard surface to the glass, so that friction between it and them takes place in every part.
They are placed in a wooden frame on each side of the plate, and the pressure is regulated by metal springs, fixed to the outside, between them and the frame. Before use, they are covered with an amalgam of mercury, zinc, and tin, which is made to adhere with the aid of a little grease, and which increases immensely the production of electricity. Invented in around 1800 by the Austrian Georg K Winter, the machine was considered a development of 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.
Jason Clarke Antiques are happy to discuss carriage, condition or for any other queries, alternatively, you can also message me and I will endeavour to come back to you as soon as possible. I have a number of beautiful antiques for sale, so please feel free to browse my other items. The item "EARLY VICTORIAN WINTERS TYPE FRICTION ELECTROSTATIC MACHINE" is in sale since Monday, June 1, 2020. This item is in the category "Antiques\Science/Medicine\Scientific Instruments". The seller is "jason750_1" and is located in newbury, Berkshire.
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