This machine uses the principle of Nürnberg scissors, which are also known as Narrenschere (fool's scissors).
Mechanics: winch; Nürnberg scissors.
Ramelli, Agostino. “Plate 146: Bridge for Crossing a City or Fortress Water Moat.” In Le Diverse Et Artificiose Machine Del Capitano Agostino Ramelli. Paris, France, 1588. https://digital.sciencehistory.org/works/70795793h.
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