What type of mechanical loom did Leonardo da Vinci design to automate part of weaving?

Leonardo da Vinci designed an automatic loom intended to mechanize part of the weaving process.

His textile studies explored ways to coordinate repeated motions that normally required a craft worker’s hands. The proposed loom used mechanical elements to help manage the movement of threads and weaving operations, continuing Leonardo’s interest in machines that transformed rotary motion into controlled sequences.

Leonardo’s design should not be confused with the Jacquard loom, which was developed much later and used punched cards to control patterned weaving. It also differs from a spinning wheel, which twists fibers into yarn rather than interlacing prepared threads into cloth.

The surviving evidence is mainly notebook drawings and mechanical studies, so historians must distinguish between a proposed mechanism and a fully demonstrated industrial machine. Leonardo’s textile designs nevertheless show that he was thinking about automation well before factory mechanization. They connect his work to the engineering traditions of Renaissance workshops, where mills, looms, and transmission systems were being improved through practical experimentation.