François-Philippe Charpentier

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François-Philippe Charpentier , (born October 3, 1734 in Blois , † July 22, 1817 there ), was a French inventor and engraver .

François-Philippe Charpentier learned in Paris , the engraver art and invented the inked manner in copper etching , but sold his secret to the well-known archaeologist and art collector Anne Claude de Caylus .

His invention earned him an apartment in the Louvre and the title of royal mechanic. As such, he made numerous mechanical discoveries and experiments: He melted metals with the burning mirror , improved the lanterns of lighthouses and warships , invented fire engines , machines for drilling cannons , for engraving drawings for lace factories, for cutting several plates at once and for Drilling six shotgun barrels. For the latter he received the directorate of the Atelier de perfectionnement .

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