Leonardo da Vinci designed cranes for lifting heavy loads at building sites.
His notebooks contain detailed studies of hoists, cranes, pulleys, gears, and winding drums. These mechanisms were intended to move materials such as stone and timber more efficiently during construction. Some designs combined a rotating platform with a boom, allowing a load to be lifted and repositioned.
Leonardo’s cranes belonged to a long tradition of lifting technology that reached back to ancient Greece and Rome. His originality often lay in examining existing mechanical principles and recombining them into more powerful, controllable machines. He also paid close attention to balance, friction, leverage, and the movement of ropes.
These sketches should not be treated as proof that every design was constructed exactly as drawn. Many were exploratory studies. They nevertheless show Leonardo approaching construction as a mechanical problem and recording practical solutions with unusual visual clarity.