Franz Reuleaux


Franz Reuleaux

Franz Reuleaux (September 30, 1829 – August 20, 1905), was a mechanical engineer and a lecturer of the Berlin Royal Technical Academy, later appointed as the President of the Academy. He was often called the father of kinematics. He was a leader in his profession, contributing to many important domains of science and knowledge.

Biography

Early life

Franz Reuleaux was born in Eschweiler in Germany (at the time part of Prussia). His father and grandfather were both machine builders. His technical training was at the Karlsruhe Polytechnic School. He then studied at universities in Berlin and Bonn.

Middle years

After a time spent in the family business he became a professor at the Swiss Federal Institute in Zurich. Eventually, in 1879 he became Rector at the Königs Technischen Hochschule Berlin – Charlottenburg. This was a major technical institute, with about 300 professors. He became widely known as an engineer-scientist - a professor and industrial consultant, education reformer and leader of the technical elite of Germany.

Reuleaux was the appointed chairman of the German panel of judges for the Sixth World Industrial Fair opened in Philadelphia on May 10, 1876. He admitted that German-made goods were far inferior to those of other countries and that German industry's guiding principle was "cheap and nasty". This shook business and evoked wide comment in the press.

Reuleaux served on several international juries and commissions and considerably involved in formation of a patent system, as he was active in German politics.

Kinematics

Reuleaux believed that machines could be abstracted into chains of elements constrained in their motions by adjacent parts in the kinematic chain. He developed a compact symbolic notation to describe the topology of a very wide variety of mechanisms, and showed how it could be used to classify them and even lead to the invention of new useful mechanisms. At the expense of the German government, he directed the design and manufacture of over 300 beautiful models of simple mechanisms, such as the four bar linkage and the crank. These were sold to universities for pedagogical purposes. Today, the most complete set are at Cornell University College of Engineering [ [http://kmoddl.library.cornell.edu/ The kinematic models for design digital library] ] .

Using his notation and methods for systematically varying the elements (e.g. inversions, changing relative sizes of the links, etc.) he showed how the four bar linkage could be mutated into 54 mechanisms, which fall within 12 classes.

Today, he may be best remembered for the Reuleaux triangle, a curve of constant width that he helped develop as a useful mechanical form.

References

*Moon, Francis "Franz Reuleaux: Contributions to 19th C. Kinematics and Theory of Machines". a preprint [http://kmoddl.library.cornell.edu/bib.php?m=75]

Books by Franz Reuleaux

*"Kinematics of Machinery" (1875). ebook [http://kmoddl.library.cornell.edu/bib.php?sort=author&type=1]
*"The Constructor" (1861) ebook [http://kmoddl.library.cornell.edu/bib.php?sort=author&type=1]


Wikimedia Foundation. 2010.

Look at other dictionaries:

  • Franz Reuleaux — 1877 Franz Reuleaux [sprich wie „röh lóh“] (* 30. September 1829 in Eschweiler Pumpe; † 20. August 1905 in Berlin Charlottenburg) war ein deutscher Ingenieur, der auf vielen Gebieten des Maschinenbaus und darüber hinaus aktiv gewesen ist.… …   Deutsch Wikipedia

  • Franz Reuleaux — 1877 Franz Reuleaux (né le 30 septembre 1829 à Eschweiler Pumpe; † le 20 août 1905 à Charlottenburg) est un ingénieur et technologue allemand spécialisé dans l analyse et la conception des mécanismes. Précurseur du génie mécanique, il chercha,… …   Wikipédia en Français

  • Franz Reuleaux — Saltar a navegación, búsqueda Franz Reuleaux en una fotografía de 1877 Franz Reuleaux (30 de septiembre de 1829 – 20 de agosto de 1905), fue un ingeniero mecánico alemán, miembro de la Berlin Royal Technical Academy, de la qu …   Wikipedia Español

  • Reuleaux — ist der Familienname folgender Personen: Carl Reuleaux (1826 1902), deutscher Ingenieur und Dichter Erich Reuleaux (1883–1967), deutscher Bauingenieur und Verkehrswissenschaftler Franz Reuleaux (1829 1905), deutscher Ingenieur …   Deutsch Wikipedia

  • Reuleaux-Dreieck — Das Reuleaux Dreieck ist das einfachste nicht triviale Beispiel eines Gleichdicks: eine Kurve konstanter Breite – als Breite wird hier der Abstand der Punkte einer Seite zur jeweils gegenüberliegenden Ecke bezeichnet. Das Reuleaux Dreieck ist… …   Deutsch Wikipedia

  • Reuleaux triangle — A Reuleaux polygon is a curve of constant width that is, a curve in which all diameters are the same length. The best known version is the Reuleaux triangle. Both are named after Franz Reuleaux, a 19th century German engineer who did pioneering… …   Wikipedia

  • Reuleaux-Tetraeder — Animation des Reuleaux Tetraeders, mit erzeugendem regelmäßigen Tetraeder. Vier sich schneidende Kugeln, die das Reuleaux Tetraeder erzeugen. Das Reuleaux Tetraeder ist die Schnittmen …   Deutsch Wikipedia

  • Reuleaux-Polygon — Bogenpolygone oder auch Bogenvielecke sind Arten von gleichdicken Figuren. Ihnen liegt jeweils ein Vieleck zugrunde, das so erweitert wird, dass alle Eigenschaften von Gleichdicken erfüllt sind. Die regelmäßige Variante wird als Reuleaux Polygon… …   Deutsch Wikipedia

  • Reuleaux —   [rø lo], Franz, Ingenieur, * Eschweiler 30. 9. 1829, ✝ Berlin 20. 8. 1905; ab 1856 Professor in Zürich, 1864 96 in Berlin; Begründer der modernen Kinematik und Getriebelehre (»Theoretische Kinematik«, 2 Bände, 1875 1900, Band 2 unter dem Titel… …   Universal-Lexikon

  • Reuleaux — (spr. rölo), Franz, Techniker, geb. 30. Sept. 1829 in Eschweiler bei Aachen, gest. 20. Aug. 1905 in Berlin, lernte 1845–46 in einer kleinen Maschinenfabrik in Koblenz, arbeitete dann in der väterlichen Maschinenfabrik in Eschweiler, studierte… …   Meyers Großes Konversations-Lexikon