Online Exhibits > Leonardo and the Engineers of the Renaissance > Manuscripts > Madrid Ms. I

LEONARDO DA VINCI - Crankshaft to wind thread on a bobbin


Madrid Ms. I (BNM), fol. 29v

Leonardo shows the assembled mechanism and an exploded view to display the components. Here, the crankshaft system imparts a continuous back and forth motion to the axle of the bobbin m, thus winding the thread evenly around it.

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