Left: for lifting stones, mortar, and other construction materials for large buildings. Right: for lifting bales, barrels, and other merchandise from a ship.
Mechanics: inertia chain; worm and worm gear.
Ramelli, Agostino. “Plate 168: Two Cranes for Lifting Heavy Weights.” In Le Diverse Et Artificiose Machine Del Capitano Agostino Ramelli. Paris, France, 1588. https://digital.sciencehistory.org/works/f7623c76z.
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