A Jacquard Loom The Jacquard loom was invented by Joseph Marie Jacquard in Lyon in 1801 to weave textiles, mainly silk. It stored weaving programmes in a series of punched cards. Usually, about 4,000 cards were used for each design, though a portrait of Jacquard [see below] needed 24,000 cards. I have seen one of these portraits [in the Cité des Sciences et de l'Industrie, Paris] and the quality is remarkable. Automatic looms were already in use but could only produce simple designs. Complex…
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