The model consists of three selectable gear ratios. A lantern gear in the shape of a truncated cone engages with three toothed wheels of different diameters. It is this lantern pinion, operated by a crank, that transmits motion to the three wheels. These wheels rotate at different speeds, corresponding to the time taken to complete a full turn. The device, as schematized in the model, could be applied to various types of machinery.
Technical informations
Type of exhibit
Model
Collection
Material
Carved Swiss pine wood
Measures
Width: 75 cm, Length: 75 cm, Depth: 75 cm
Storage location
Relationship with the original work
Source: Leonardo da Vinci, Codex Atlanticus, f. 77 v
Location
Museo Leonardiano, Palazzina Uzielli, second floor
Last update: 29 September 2025, 11:35