Drive train for a cart

Drive train for a cart

Drive train for a cart

Inv. 78
Interpretation by Giorgio Canestrini, 1956

In this axle study, the movement is transmitted to only one wheel by means of the pinion (or lantern sprocket), while the other wheel is free to turn at a different speed, in accordance with the curvature of the street, apparently anticipates the idea for the "differential gear", which Leonardo highlighted in later drawings. The reduction of friction resistance in the pivots and the amplification of human force by means of gears make this study an interesting example of the application of different branches of knowledge.

The model is based on the drawing:

  • Codex Atlanticus f. 17 v. (1478)
    Milano, Biblioteca Ambrosiana