A German 1920’s Wimshurst electrostatic machine by Voltana in full working order. The machine has a cast iron base with two contra rotating ebonite discs with 24 metal sectors attached to the front. By turning the handle electrostatic charge is sent to the two glass leyden jars which sit either side of the discs. Once enough charge has been stored within the jars a spark is released between the two metal nodes to the front of the machine. The machine is marked on the bottom with A.W. 21 and comes with 16 pages original description: “Voltana Experiment”. Measurements: 29 x 24 x 13,5 cm
The Wimshurst influence machine or electrostatic generator was developed by the British inventor James Wimshurst between 1880 & 1883.
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Van Leest Antiques
Van Leest Antiques, based in Utrecht in the Netherlands, specialises in antique scientific and medical instruments. Their collection covers mainly scientific and medical antique instruments: barometers, globes and planataria, nautical instruments, anatomical models, and pharmacy items. Toon Van Leest travels regularly in Europe and visits trade fairs, auctions, and antique dealers to collect stock and to find pieces to fulfil his clients' unusual requests.
As well as being an avid antique collector and dealer, Toon Van Leest is also a dentist. He believes that antiques are a stable investment, not reliant on trends or fashion, and have truly lasting value. Above all, he says, antiques are timeless and never lose their beauty.