Jacquard loom showing the punched cards carrying

Jacquard loom showing the punched cards carrying the pattern instructions. These were strips of pasteboard - or sometimes tin - 304-608mm long by 50-75mm wide, with perforations t.35 in diameter. A card was needed for each weft thread of a pattern and, although 400-800 cards were normally used, patterns needing 24, 000 were sometimes worked. From Louis Figuier Les Grandes Inventions, Paris, 1863

Although Diameter Figuier Grandes Instructions Inventions Jacquard Loom Needed Needing Normally Pasteboard Perforations Punched Sometimes Strips Thread Weavers Weaving Weft

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