This model represents an instrument for producing wind, as Leonardo tells us, for feeding the fire in a founding furnace.
The device works automatically, with a weight-charged mechanism similar to that used in clocks. By turning the crank, the weight is made to rise to the desired height: the higher the weight is raised, the greater the charge and autonomy provided to the machine.
The falling of the weight actuates the mechanisms that transmit the motion, by means of toothed wheels, to a rectangular metal plate acting as an impeller. This oscillates thanks to two small lamellas that interact with the teeth of the wheel, transforming the rotating motion into oscillating motion.
Technical informations
Type of exhibit
Model
Collection
Material
Carved wood, painted metal, brass sheet, rope
Measures
Width: 70 cm; Length: 40 cm; Depth: 20 cm.
Storage location
Relationship with the original work
Source: Leonardo da Vinci, Codex Atlanticus, f. 754 r
Inventory number
Record n. OA: 00000047
Location
Museo Leonardiano, Counts Guidi's castle, ground floor
Last update: 11 November 2025, 11:54