Johann Maritz

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Maritz in a picture by Robert Gardelle

Jean or Johann Maritz (* 1680 in Burgdorf BE , Canton Bern ; † 1743 ) was a Swiss piece caster and inventor. He became Commissaire des Fontes in Strasbourg .

Life

Johann Maritz invented a piece drilling machine. In 1710 he cast massive cannons in Bern and bored them out with his invented horizontal drill so that the core can be removed as a solid piece. His invention was further developed by Florent-Jean de Vallière (1667–1759).

In England, King George I, Lord Stanhope and Sir Robert Walpole realized that they were falling behind and in 1712 hired Albrecht Borgaard (1659–1751).

He also built a new waterworks for the city of Geneva.

family

His son Samuel Maritz (1705–1786) was called to Bern in the spring of 1749 to re-cast the entire artillery. Another son, Johann Maritz the younger (1711–1790), became inspector general of the royal foundries in France in 1755.

Individual evidence

  1. Ludwig Darmstaedter: Handbook on the History of Natural Sciences and Technology 1866 (PDF; 2.7 MB)
  2. ^ Agathon Aerni: Andreas Schalch . In: Schaffhauser Contributions to History. Biographies Volume IV . 58th year 1981, pp. 260–265 ( PDF )
  3. Peter Hug: Armor. I .. In: Historical Lexicon of Switzerland .