Eduard Friedrich Wilhelm Oldendorp (*1795-†1881?)

A hunderterzirkel, a sort of planimeterzirkel with a recording wheel used with a harp-planimeter for calculating the area of an irregular figure on a map or a chart. The hunderterzirkel was invented by Oldendorp in around 1830, for which he received the Prussian Große Goldene Medaille (great gold medal) in 1831 [1].

Unsigned, but likely made by A. Frerk & Sohn (Celle & Hannover) from whom we have an identical example of a hunderterzirkel in a comprehensive drawing set, and probably dates from around 1850-1875.

Noteworthy is that from 1835-1841 Oldendorp lived in Meinholz, close to Braunschweig; from 1842-1856 in Abbensen, and from 1857-1867 in Langlingen, both of the latter close to Hannover and Celle [3]. 

 

 

 

 

 

 

 

Above illustration from: Hunäus; Die geometrischen Instrumente der gesammten praktischen Geometrie, deren Theorie, Beschreibung und Gebrauch, Carl Rümpler, Hannover, 1864. Google Books.

 


NOTES / REFERENCES 

 

1. Verhandlungen des Vereins zur Beförderung des Gewerbefleißes in Preußen, Elfter Jahrgang, Berlin, 1832, p.200.

 

2. Rechnerlexikon Oldendorp Planimeter and http://rechnerlexikon.de/artikel/Nichtintegrierendes_Planimeter

 

3. Hof- und Staats-Handbuch für das Königreich Hannover 1835-1867; Wikisource: Staatshandbücher und -kalender

 

4. Eduard Friedrich Wilhelm OLDENDORP  *17.10.1795 in Eitzendorf.

    Father: Georg Friedrich OLDENDORP *31.01.1752 in Lavelsloh

    Mother: Eleonore Marie Sophie BARTELS *15.03.1766

    Wife: Auguste MYLIUS  *18.06.1808 in Celle DE-NI

    Daughter: Marie OLDENDORP *1839 in Meinholz 

    Source: genealogy.net

 

5. Göttingen Collection of Mathematical Models and Instruments  Oldendorp Harp-planimeter

 

6. Gravenhorst, F.; Die Construction und Anwendung eines Flächenmaassstabes beim Gebrauch des Planimeterzirkels, Cöslin 1864.

    Google Books.

 

7. Schikorsky, Isa; Private Schriftlichkeit im 19. Jahrhundert: Untersuchungen zur Geschichte. De Gruyter, Max Niemeyer, Tübingen 1990, p.421. 

8. A modern 20th c. planimeterzirkel with a recording wheel (described as lithographers' dividers) is found in the Lietz 1919 catalogue [Internet Archive], and again in their 1926 catalogue.