['In', 'the', 'realm', 'of', 'weaving', ',', 'the', 'pin', 'cop', 'plays', 'a', 'crucial', 'role', 'by', 'serving', 'as', 'a', 'weft', 'cop', 'specifically', 'designed', 'to', 'fit', 'the', 'shuttle', '.', 'This', 'device', 'ensures', 'that', 'the', 'weft', 'yarn', 'is', 'properly', 'stored', 'and', 'dispensed', 'during', 'the', 'weaving', 'process', '.', 'Historical', 'records', 'indicate', 'that', 'early', 'looms', 'incorporated', 'various', 'forms', 'of', 'weft', 'cops', ',', 'but', 'none', 'were', 'as', 'effective', 'as', 'the', 'pin', 'cop', 'in', 'maintaining', 'tension', 'and', 'yarn', 'integrity', '.']
[[7, 8, 'Textile Machinery']]