Eugen Langen

Eugen Langen Carl Eugen Langen (9 October 1833 – 2 October 1895) was a German entrepreneur, engineer and inventor, involved in the development of the petrol engine and the Wuppertal Suspension Railway. In 1857 he worked in his father's sugar factory, JJ Langen & Söhne, and after extensive technical training at the Polytechnic institute in Karlsruhe, patented a method for producing sugar cubes. He sold this method in 1872 by Sir Henry Tate of England, founder of the Tate Gallery in London. Provided by Wikipedia
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Chemins de fer suspendus a rail unique

by Langen, Eugen Published: 1902