Online Exhibits > Leonardo and the Engineers of the Renaissance > Models

Revolving crane with hoist

Dimensions: 83x65x65 cm
Materials: ash, metal
Constructor: Dipartimento di scienza delle costruzioni, Università di Firenze
Date: 1997

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Working model after Bonaccorso Ghiberti, B.R. 228 (BNCF), fol. 107v

Another type of revolving crane, probably used on the scaffolding put up on the inner and outer masonry. The machine is fitted with a vertical pin-gear wheel that activates a jack for lifting light weights and a screw-operated platform for shifting the lifted load sideways.

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