Pierre Dénis (hydraulic engineer)

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Pierre Dénis (* before 1694 in Paris , † 1700 ) was a French hydraulic engineer and fontainier .

Life

Pierre Dénis, originally from Paris, was recruited from Paris as the successor to the court architect and fountain master Johann Friedrich de Münter, who died in Celle in 1693, and was appointed to manage the fountains in the Great Garden of Herrenhausen at Easter 1694 . There he worked in the service of Ernst August , Elector of Braunschweig-Lüneburg .

With a salary of 500 Thalern , Dénis continued de Münter's work to improve the water features in the Great Garden. In order to better supply the manor's water reservoirs by means of pipelines, he unsuccessfully searched for further high-altitude sources in the area around Ahlem and Harenberg .

While Gottfried Wilhelm Leibniz illustrated his own design for supplying the water features with a drawing in 1696, Dénis proposed the installation of a bucket wheel on the banks of the Leine . The preparations for its construction with a diameter of almost 15 meters began in the winter of 1696/97. For the waterwheel to be constructed, long pieces of wood were brought from the forests on the Deister , near Grasdorf , Ahlem and Lathwehren and even from near Northeim . For the shaft of the bucket wheel, a particularly large tree was approached with the help of sledges from the Cananoher forest .

In 1697 and 1698 Dénis also examined the fountain system in Celle .

With the death of Elector Ernst August at the beginning of 1698, who had spent around 46,000 Reichstaler for the Herrenhausen fountain project during his reign , the work that Dénis had started on the pumping station remained on the leash.

Web links

Individual evidence

  1. ↑ n.v . : Dénis, Pierre in the database of Niedersächsische Personen ( new entry required ) of the Gottfried Wilhelm Leibniz Library - Lower Saxony State Library [undated], last accessed on February 28, 2020
  2. ^ A b Wilhelm Rothert : Dénis, Pierre , in ders .: General Hannoversche Biographie , Volume 3: Hanover under the Kurhut 1646-1815 . Sponholtz, Hannover 1916, p. 487
  3. ↑ a b c d e Bernd Adam : Beginning of the machine time , in Marieanne von König (ed.): Herrenhausen. The Royal Gardens in Hanover , Göttingen: Wallstein-Verlag, circa 2006, ISBN 978-3-8353-0053-8 and ISBN 3-8353-0053-9 , p. 47ff .; Preview over google books
  4. ^ A b Karl H. Meyer : Royal Gardens. Three hundred years Herrenhausen , Hanover: Fackelträger-Verlag Schmidt-Küster, 1966, p. 86; limited preview in Google Book search
personal data
SURNAME Dénis, Pierre
BRIEF DESCRIPTION Fountain master and hydraulic engineer in Herrenhausen near Hanover and in Celle
DATE OF BIRTH 17th century
PLACE OF BIRTH Paris
DATE OF DEATH 1700