Franjo Hanaman

from Wikipedia, the free encyclopedia
Franjo Hanaman
Advertising stamp for incandescent lamp, Dr. Just tungsten
On the right a Just Hanaman tungsten lamp, Budapest, 1906.

Franjo Hanaman (also Franz Hanaman ; born June 30, 1878 in Drenovci near Županja , Austria-Hungary ; † January 23, 1941 in Zagreb ) was a Yugoslav inventor , engineer and chemist . Together with Alexander Just , he invented the electric tungsten wire lamp in 1903/1904.

Life

His parents were the dealer Gjuro Hanamann (1847–1921) and Emilija, nee. Mandušić. The big brother was Aleksandar (1875–1950).

Hanaman graduated from the Vienna University of Technology in 1899 .

1901–1904 he was an assistant at the Institute for Analytical Chemistry in Vienna. Together with his German / Hungarian assistant Alexander Just (1874–1937) he developed a process for the production of tungsten filaments for electrically operated tungsten wire lamps at the Bayerische Glühfädenfabrik or Wolframlampen AG in Augsburg-Lechhausen . On April 15, 1903 he received the patent (DRP) process for the production of incandescent bodies from tungsten or molybdenum for electric light bulbs . On December 13, 1904, he had this process patented in Budapest . The principle of the process is based on the fact that a glowing carbon filament in an atmosphere of tungsten oxychlorides and hydrogen can be converted into a filament made of pure tungsten. In 1910 he sold this patent to General Electric . His inventions also enabled the technical development of incandescent lamps as well as the early diodes and triodes .

1904–1911 he worked as a chemist in the cement factory in Lédecz, Hungary. 1911–1915 he was at the Institute for Iron Metallurgy at the Technical University of Charlottenburg , where he received his doctorate in 1913 with his thesis on rust tests with nitrided iron . He completed his habilitation with over cerium alloys. The cerium-copper alloys and their constitution (Leipzig 1915).

During World War I he headed the institute for building material research in the aeronautical arsenal in Vienna- Fischamend . From 1919 to 1922 he was general director of Jugoslavenska industrija motora dd (Yugoslavian Motor Industry AG) in Zagreb. At the Technical University of Zagreb he taught from 1920 as a private lecturer, from 1922 as a professor for inorganic chemical engineering and metallurgy. In 1924/25 he was rector.

From 1934 to 1939 he was editor-in-chief of the journal Archiva za hemiju i farmaciju (Archive for Chemistry and Pharmacy).

literature

swell

  1. ^ Josip Moser: Franjo Hanaman I Njegovo Djelo . In: Vjesnik . tape 132 , January 2002, p. 12–13 (Croatian, PDF ( Memento from July 14, 2014 in the Internet Archive )). Franjo Hanaman I Njegovo Djelo ( Memento of the original from July 14, 2014 in the Internet Archive ) Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice.  @1@ 2Template: Webachiv / IABot / www.hep.hr
  2. ↑ Heinrich Leiser: Wolfram: a monograph with an appendix, The patent claims on tungsten incandescent bodies . W. Knapp, Halle a. P. 1910, OCLC 907791252 ( books.google.com ).
  3. ↑ A 34541 számú szabadalmi leírás 1904-ből. (Hungarian .; PDF; 226 kB)
  4. ↑ NL Müller: The manufacture and properties of metal wire lamps (digitized version) Verlag Wilhelm Knapp, Halle a. S. 1914 (preface: December 1913), 9 + 192 pages. With table of contents, index, corrections.
  5. ↑ Hrvatski biografski leksikon: HANAMAN, Franjo ( hungar .)



personal data
SURNAME Hanaman, Franjo
BRIEF DESCRIPTION Yugoslav inventor, engineer and chemist
DATE OF BIRTH June 30, 1878
PLACE OF BIRTH Drenovci
DATE OF DEATH January 23, 1941
Place of death Zagreb