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Plate 165: Screw-jack for bending the iron gratings of a defensive grille

  • 1588

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Can be operated by a single person, easily and with little noise. The device depicted here is also illustrated on Plate 164.

Mechanics: hand crank; spur gear and lantern; worm and worm gear; lantern and rack.

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  • 38 cm H
Subject
Rights Public Domain Mark 1.0
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  • Courtesy of Science History Institute

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Cite as

Ramelli, Agostino. “Plate 165: Screw-Jack for Bending the Iron Gratings of a Defensive Grille.” In Le Diverse Et Artificiose Machine Del Capitano Agostino Ramelli. Paris, France, 1588. https://digital.sciencehistory.org/works/rf55z795p.

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