Johann Heinrich August Mohn

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Johann Heinrich August Mohn (* 1800 ; † 1872 ) was a German geodesist , engineer , architect , building officer and railway director during the early industrialization in the federal states .

Life

Johann HA Mohn was born as the son of a drawing teacher and glass painter. In Dresden he attended the local Academy of Sciences and Arts as a youngster , before he began in 1817 as an assistant in surveying the road from Berlin to Stettin and in 1820 passed his exams as a surveyor . Then he built a customs building, quay walls in Berlin, a church and - in the administrative district of Köslin - the road from Jastron to Landeck .

In 1830 Mohn began studying at the Berlin Building Academy . In the years from 1831 to 1837 he was particularly busy with country roads and hydraulic structures before he finally switched to railway construction.

Mohn worked for a time, meanwhile appointed building officer, as director of the Berlin-Anhalt Railway Company . During these years, he was supported by Adolf Funk as a technical assistant .

In 1839 at the latest, Johann Heinrich August Mohn was employed as an engineer for the Leipzig-Dresden Railway Company and, according to the State Handbook for the Kingdom of Saxony of the same year, also gave lessons in road and hydraulic engineering as a teacher in Leipzig .

The Royal Railway Directorate founded on March 13, 1843 in the royal seat of the Kingdom of Hanover , which had commissioned the railway designer Ludwig Debo with detailed drawings for the first station in Hanover, had "for better, more professional plans [... the] 'Special- Director ' Poppyseed from Berlin to Hanover '. With the help of two technicians from the Borsig company, Mohn then only carried out the plans for all the shed and workshop buildings in Hanover. Under Mohn's direction, the building inspector Adolf Funk made “the construction plans and cracks for the machine and vehicle repair buildings”. After the construction manager Ferdinand Schwarz was also called to Hanover on December 15, 1843, he presented "special cracks and cost estimates as well as building construction management" which he had worked out on January 22, 1844. So far, the basic concept of the reception building, which was then implemented, has not been clarified, which neither came from Mohn nor from Schwarz, nor from Debo as the sole author. Other architects who collaborate on the design are also conceivable, as well as the former member of the Railway Commission, which was dissolved on March 7, 1843, Georg Ludwig Friedrich Laves .

After the opening of the first railway line in the Kingdom of Hanover from Hanover to Lehrte on October 22, 1843, a plan was drawn up by Andreas Christoph Friedrich Sohnrey under the direction of the Mohn building council in the following year, 1844 , with the Harburg railway lines that had already been completed or were under construction -Lüneburg as well as Hanover-Lehrte-Braunschweig, Celle-Lehrte-Hildesheim, the so-called "Kreuzbahn". The plan also included the Bremen-Verden-Nienburg-Brokeloh-Neustadt-Hanover, also Hanover-Wunstorf-Minden and Bremen-Verden-Kampen-Hudemühlen ..., in short, all of the railway lines planned at the time in the kingdom.

After the trade association for the Kingdom of Hanover as well as the higher trade school founded by it and the Hanoverian Artists' Association had been formed and by 1850 "several hundred well-trained engineers were already active in the Hanoverian civil service", the need for a specialist society as a forum for exchanging ideas was also special for architects and engineers from civil engineering and mechanical engineering alone. Finally, in 1851, Adolph Funk initiated the founding of the Architects and Engineers Association in Hanover together with the building officer Mohn and the chamber councilor EA Oppermann .

literature

Individual evidence

  1. ↑ oV : railway Direction to Hanover. In: Hof- und Staats- Handbuch for the Kingdom of Hanover for the year 1864 , printed and published by the Berenberg'schen Buchdruckerei, Reitwallstraße No. 15, Hannover 1846, p. 357; Digitized via Google books
  2. ^ A b c d e Lars Ulrich Scholl : Engineers in the early industrialization. State and private technicians in the Kingdom of Hanover and on the Ruhr (1815 - 1873) (= studies of natural science, technology and economics in the nineteenth century , vol. 10), at the same time dissertation in 1977 at the faculty for humanities and social sciences at the Technical University of Hanover , Göttingen: Vandenhoeck and Ruprecht, 1978, ISBN 978-3-525-42209-0 and ISBN 3-525-42209-1 , p. 186; Preview over google books
  3. ↑ Compare the State Handbook for the Kingdom of Saxony , published with the approval of the State Government by the Directory of the Statistical Association, Leipzig: Friedrich Fleischer, 1839, p. 265; Digitized via Google books
  4. ↑ Günther Engel (Red.): From the bag station to the through station - planning and construction of the first central station , in which: The railway in Hanover , ed. on the occasion of the 10th anniversary of "Eisenbahnfreunde Hannover", Verlag Wolfgang Zimmer, Eppstein im Taunus 1969, pp. 15–18; here: p. 17
  5. ^ Waldemar R. Röhrbein : Railway. In: Klaus Mlynek, Waldemar R. Röhrbein (eds.) U. a .: City Lexicon Hanover . From the beginning to the present. Schlütersche, Hannover 2009, ISBN 978-3-89993-662-9 , pp. 153-156; here: p. 154.
  6. ^ Compare Deutsche geographische Blätter , Ed .: Geographische Gesellschaft Bremen, Vol. 29-30, 1906, p. 105; Preview over google books
  7. ^ Lars Ulrich Scholl: Engineers in early industrialization ... , p. 258; Preview over google books
personal data
SURNAME Poppy, Johann Heinrich August
BRIEF DESCRIPTION German geodesist, engineer, architect, building officer and railway director
DATE OF BIRTH 1800
DATE OF DEATH 1872