page_title: András Mechwart
section_title: The roller mill
hierarchical_section_title: András Mechwart / Life / The roller mill
caption_attribution_description: Magyar: A Ganz gyár Mechwart András által tervezett hengerszéke.
context_page_description: András Mechwart de Belecska was a German-born Hungarian-German mechanical engineer, chief executive of the Ganz Works, and a pioneer in the Hungarian mechanical and electrical engineering. As an inventor and as a businessman he contributed to the development of the Hungarian transport manufacturing industry, and made the Ganz Works a flagship of the Hungarian economy of the 19th century.
context_section_description: Mechwart bought in 1874 Friedrich Wegmann's patent of the roller mill that the inventor could not sell for a long time. He improved it and the Ganz Works started to produce Mechwart's version. Wegmann's roller mill was made of fragile porcelain wheels and it was a simple structure of grain mill grinding mechanism. Mechwart changed the porcelain wheels to wear-resistant, hard cast, obliquely grooved grinding rolls and he used strings to clamp the grinding rolls and covered the roller mill as well.
  The quality of the grinding of the diagonally grooved rollers were determined by the mechanical treatment of the notches, the number of notches, shape, inclination and position relative to each other. Mechwart with the use of this knowledge constructed the structure and improved it to a perfectly usable machine. His patented version became world-famous. The Ganz Works produced until the end of the 19th century about sixty different types of roller mills. For the modern Hungarian steam powered mills they manufactured Haggenmacher-printing machines and driving force, but it really was the roller mill which helped to bring the Hungarian milling industry the world-fame. The development of the factory is related closely to the production of the roller mill which pulled the company through the downturns of the financial crises.
caption: András Mechwart's roller mill (1874)
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