Leonardo da Vinci designed cranes to lift and transport heavy materials through geared mechanisms and rotating drums.
Construction cranes were not invented by Leonardo; ancient Greeks and Romans already used lifting machines. Leonardo’s contribution was to study, refine, and draw many specialized hoists and cranes. His notebooks show devices using winches, gears, ropes, pulleys, and counterweights to control heavy loads more efficiently.
Some designs were intended for large building projects, including moving stone or raising materials. Leonardo carefully examined how mechanical advantage could reduce the effort needed to lift a load. A crane is distinct from a simple pulley: the crane combines lifting equipment with a supporting structure and often a way to move the load horizontally. Leonardo’s engineering drawings preserve detailed examples of Renaissance experimentation with construction machinery.