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Pattern Duplicator

Tend machines that duplicate sets of pattern cards.

What does a Pattern Duplicator do?

Tends machine that duplicates sets of pattern cards used to control weaving operations of Jacquard loom: Places set of blank cards and set of punched cards into mechanisms that simultaneously feed cards under repeating cylinder where reeler rods locate holes on punched card and activate corresponding punches that punch duplicate holes in blank card. Observes operation of machine to verify accuracy of punching and removes bent or jammed cards. May operate lacing machine to tie punched cards into chain [CARD LACER, JACQUARD].