Technikatörténeti szemle 11. (1979)
TANULMÁNYOK - Vajda Pál: Creative Hungarians in mathematics, astronomy, physics, chemistry, technical sciences and industry. A selected bio-bibliography
Cursi, P.: Automatische Waffen, Frauenfeld 1936. pp. 120. 123. 125., Mahrholdt, R.: Waffenlexikon, München 1937. pp. 98—100, 258—258. GESTETNER, Dávid (1854—1939). Inventor. In order to speed up office work Gestetner patented in 1880 his first stencil duplicating machine, the cyclostyle equipment. This was the starting point for the later developments, the extensively perfected and automatic Gestetner Rotary Cyclostyle and Rotary Neo-style devices. Desborough, W.: Copying and Duplicating Processes, London 1930., Proudfoot W. B.: The Origin of Stencil Duplicating, London 1972. ILOSVAY, Lajos (1851—1936). Chemist. Ilosvay’s scientific work covered primarily inorganic and analytical chemistry. He had examined the physical characteristics and production of carbonyl sul- phid and analysed the Budapest lighting gas; suggested various aromatic amines as qualitative reagents. Later he applied the Griess diazotisation reaction in acetic acid medium, for the detection of nitrous acid and thus created the Griess—Ilosvay reagent. With his special reagent he examined nitrite in many materials. He analysed various mineral and natural waters of Hungary. HYCE, SZA JORDAN, Károly (1871—1959). Mathematician. The theory of probabilities and mathematical statistics are the main fields of his activity. His research work can be considered as the completion of the classical theory of probabilities, further his critics promoted subsequent developments. His major purpose was to present consequently various applications of the theory. Kendall D. G.: K. Jordan (= Journal of the London Mathem. Soc. 35/1960. pp. 380—383.), Takács L.: K. Jordan (= Annals of Math. Stat. 32/1961. pp. 1—11.) MBH KANDÓ, Kálmán (1875—1931). Mechanical engineer Kandó was a pioneer in railway electrification. He developed the world’s first high-voltage three-phase electrification system for a main railway line, the Valtellina route in Italy (1902). He developed the phase conversion method of 50-cycle traction which has been in use on the main line between Budapest and Hegyeshalom since the 1930s. Novi, M. La trazione elettrica sulle ferrovie dello stato. Linea Valtellinesi (= Ri- vista tecnica della Ferrovie Italiane 6/1914. pp. 1—6.), Bajocchi, U.: II sistema Kandó (= Riv. Tec. della Ferrovie Italiane 45/1934/nr. 3.), Hungarian mainline electrification (= The Railway Gazette 59/1933/pp. 18—19), L. Verebéig: L’anni- versaire de 25 ans du Systeme (^electrification des chemins de fer a 50 Hz (= ATH 20/1958/pp. 209—216.), Armand, M.: Le role de l’electrification en courant in- dustriel 50 périodes dans la modernisation et l’unification de fer européennes (= Revue Gen. des Chemins de Fer 70/1951/pp. 525—535.), A Kandó-Anniversary (— The Railway Gazette Apr. 13. 1956. p. 185.) WHC, TUW, CH, VHP KHERNDL, Antal (1842—1919). Mechanical engineer Kherndl devoted all his life to statics, evolving a theory of bridge construction and even improving upon Culman’s methods in graphostatics. WHC 48
