Sigmund Riefler

Sigmund Riefler
Portrait of Sigmund Riefler
Born (1847-08-09)August 9, 1847
Maria Rain
Died October 21, 1912(1912-10-21) (aged 65)
Munich
Fields Horology
Alma mater University of Munich
Known for Riefler escapement

Sigmund Riefler (August 9, 1847 October 21, 1912) was a German physicist, inventor and precision clockmaker.[1][2]

Life

Sigmund Riefler was born on August 9, 1847 to Magdalena and Clemens Riefler. He studied mathematics, geodesy and mechanical engineering at the Technical College in Munich and then physics and astronomy at the University of Munich. From 1870 he worked as an engineer in the Royal Prussian Land Survey, surveying land in Schleswig.[3]

In 1876 after the death of his father, he took over the firm Clemens Riefler with his two brothers, Adolf and Theodor. Sigmund worked mainly on new developments in the area of drawing instruments and precision clocks, while his brothers handled the technical, sales and management of the company.

In 1878 he settled in Munich, to be in contact with the local scientific community.[4] He invented the Riefler escapement which was patented in 1889.[5] He died in Munich on October 21, 1912 at the age of 65.

Riefler precision pendulum clocks

In popular culture

Monroe mentions Sigmund Riefler in the "One Night Stand" episode in Season 3 of Grimm.

Awards

Patents

References

  1. Riefler, Dieter: Riefler-Präzisionsuhren: 1890-1965; Callwey Verlag; München 1991; ISBN 3-7667-1003-6
  2. Dr. Sigmund Riefler; by C. Dietzschold; Der Cornelius Nepos der Uhrmacher; Krems 1910; S.57.
  3. Precision Pendulum Clocks: France, Germany, America, and Recent Advances; by Derek Roberts; 2004; ISBN 0-7643-2021-1
  4. Erbrich, Klaus: Präzisionspendeluhren: von Graham bis Riefler; Callwey Verlag; München 1978; ISBN 3-7667-0429-X
  5. Precision Pendulum Clocks: The Quest for Accurate Timekeeping; by Derek Roberts; 2003; ISBN 0-7643-1636-2
  6. 1 2 3 Day, Lance; Ian McNeil (1996). Biographical Dictionary of the History of Technology. New York: Routledge. p.602

External links

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