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  Rare books, Engravings

  Plate 193: Ballista

  • Part of Le diverse et artificiose machine del capitano Agostino Ramelli

  • 1588

  Composed of three large crossbows. Uses tension to launch arrows, pyrotechnic projectiles, and balls of rock, lead, and iron to defend a city or fortress.

  Mechanics: hand crank; spur gear and lantern.

  • Author Ramelli, Agostino, 1531-approximately 1600
  • Subject Ballista, Machinery, Engines of war
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  3 items
  Rare books, Engravings

  Plate 192: Ballista

  • Part of Le diverse et artificiose machine del capitano Agostino Ramelli

  • 1588

  Uses tension to launch arrows, pyrotechnic projectiles, balls, and rocks to defend a city or fortress.

  Mechanics: roller thrust bearing; projectile throwing engine; trigger.

  • Author Ramelli, Agostino, 1531-approximately 1600
  • Subject Ballista, Machinery, Engines of war
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  3 items
  Rare books, Engravings

  Plate 191: Moveable counterweight trebuchet

  • Part of Le diverse et artificiose machine del capitano Agostino Ramelli

  • 1588

  For launching rocks and fireballs to defend a city or fortress.

  Mechanics: hand crank; worm and worm gear; spur gear and recessed face gear; projectile throwing engine.

  • Author Ramelli, Agostino, 1531-approximately 1600
  • Subject Engines of war, Catapult, Machinery
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  3 items
  Rare books, Engravings

  Plate 190: Counterweight trebuchet

  • Part of Le diverse et artificiose machine del capitano Agostino Ramelli

  • 1588

  For filling ditches and moats with barrels, bales, sacks, and debris, and for defending a city or fortress.

  Mechanics: winch; trigger.

  • Author Ramelli, Agostino, 1531-approximately 1600
  • Subject Engines of war, Catapult, Machinery