Collection on deposit
Three-speed gear
Model of travelling collection
Project:
Fausto Colombo e Giorgio Valentini, 1983
Realization:
Giovanni Sacchi, 1983
Model from:
Leonardo da Vinci, Codice Atlantico, f. 77v
carved arolla pine wood
cm 75 x 75 x 75
Description:
This model comprises three different selectable gears. A truncated cone-shaped lantern gear engages three toothed wheels of different diameters. It is this lantern gear, moved by a crank handle, which transfers motion to the three toothed wheels. These wheels have different speeds according to the time it takes them to complete a full rotation. The simplified device shown in the model could have been applied to several different types of machinery.