Franz Anton Lohage

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Franz Anton Lohage (born March 31, 1815 in Grevenstein , † April 22, 1872 in Unna ) was a German ironworker, chemist and inventor.

Franz Anton Lohage (contemporary painting, today in the Sauerland Museum Arnsberg)

Life

On March 31, 1815, Franz Anton Lohage was born in Grevenstein as the fifth child of the tailor Kaspar Lohage and Maria Christina née Mertens. After attending primary school, he was instructed in tailoring by his father when he was twelve. Due to a lack of interest, he left the tailoring shop. He then worked as a farm hand in Balve and later as a worker in the Wocklum chemical factory. His suggestions for improvement to simplify work led to his dismissal.

The then Upper President of Westphalia, Ludwig von Vincke , learned of the incident and enabled Lohage to visit the trade school in Hagen in 1837 via a free space . After graduating from school, he worked in chemical factories in Iserlohn and Oranienburg . From 1842 to 1844 he attended the trade institute in Berlin , a predecessor of the technical university , on a scholarship . A year later, Lohage settled in Dortmund , where he set up the Overbeck & Lohage stearin factory together with Wilhelm Overbeck . Also in 1845 he married Anna Fischer. Lohage separated from his business partner in 1847 and moved to Unna. In 1848 he went on a study trip to England and Scotland on behalf of the Prussian state. Together with his Unner acquaintance Gustav Bremme, Lohage also dealt with processes and experiments for the production of steel. They managed to produce hard steel in the puddle furnace under strict supervision and control of the annealing process . The new process created a high-quality intermediate product, welding steel. The joint invention, a further development of the so-called puddling process , was adopted by many plants. A patent in France in 1849 was followed by patents in Great Britain, Belgium and Austria in 1850.

In 1850 Lohage and other partners founded the steel company Lohage, Bremme & Co. In the years 1851 to 1853 he made several trips abroad. From 1854 he worked unsuccessfully on a new steel refining process to improve his invention. The manufacture of artificial diamonds also failed. Lohage became a member of the Natural History Association of the Prussian Rhineland and Westphalia in 1855 . In the following years he also gave lectures to this society. In 1856 he was working on a process for the production of copper aluminum and various chemical products. From 1857 he worked as a consultant for leading iron and steel companies. These included the Gutehoffnungshütte in Oberhausen in 1857 , a company in Siegburg from 1857–1858, a company in Sheffield from 1858–1859 and the Wilhelmshütte in Warstein from 1860–1861 . From 1860 to 1864 he worked for the Bochum cast steel works. There he succeeded in producing large cast steel blocks. This process has been patented in Great Britain and the USA. Then he advised the Ilseder Hütte near Peine . Subsequently he dealt with the theory of beer production and the removal of chlorine from bleach. Lohage is one of the co-founders of the Unnaer Bildungsverein and Dortmunder Gewerbeverein. He died of smallpox infection at the age of 57 .

literature

  • Gerhard Lohage: FA Lohage (1815–1872). Life and work of a Sauerlander in the age of industrialization and his contribution to the development and spread of the puddle steel process. In: Südwestfalen Archiv, Landesgeschichte in the former Electoral Cologne Duchy of Westphalia and the County of Arnsberg , 6th year 2006, pp. 216–262.
  • N / A : Franz Anton Lohage. In: De Suerlaender Heimatkalender 1958 , p. 21.
  • Lars Ulrich Scholl: Engineers in early industrialization. Vandenhoeck & Ruprecht, Göttingen 1997, ISBN 3-525-42209-1 , p. 387ff.
  • United States Patent Office: Report of the Commissioner of Patents - For the year 1859 , Vol. 1, Washington 1860, No. 22,687 Franz Anton Lohage, p. 178.
  • Günter Bauhoff:  Lohage, Franz Anton. In: New German Biography (NDB). Volume 15, Duncker & Humblot, Berlin 1987, ISBN 3-428-00196-6 , p. 120 f. ( Digitized version ).

Individual evidence

  1. ↑ Archive.nrw - Franz Anton Lohage accessed on July 27, 2010 .
  2. ↑ Günter Bauhoff:  Lohage, Franz Anton. In: New German Biography (NDB). Volume 15, Duncker & Humblot, Berlin 1987, ISBN 3-428-00196-6 , p. 120 f. ( Digitized version ).
  3. ^ Gerhard Lohage, Lohage, p. 258.
  4. ^ City of Meschede - Personalities in Meschede's Environment, p. 21 (PDF; 826 kB), accessed on July 27, 2010
  5. ^ Gerhard Lohage, Lohage, p. 258.
  6. ^ Gerhard Lohage, Lohage, p. 258.
personal data
SURNAME Lohage, Franz Anton
BRIEF DESCRIPTION German chemist and inventor
DATE OF BIRTH March 31, 1815
PLACE OF BIRTH Grevenstein
DATE OF DEATH April 22, 1872
Place of death Unna