['In', 'the', 'early', '19th', 'century', ',', 'textile', 'manufacturers', 'began', 'to', 'adopt', 'the', 'power', 'loom', ',', 'which', 'revolutionized', 'the', 'weaving', 'process', '.', 'The', 'power', 'loom', 'utilized', 'various', 'components', ',', 'including', 'jacks', 'that', 'were', 'crucial', 'for', 'raising', 'the', 'healds', '.', 'These', 'jacks', 'functioned', 'as', 'short', 'levers', 'on', 'the', 'loom', "'s", 'head', ',', 'allowing', 'the', 'heald', 'shafts', 'to', 'be', 'lifted', 'efficiently', ',', 'thereby', 'enhancing', 'productivity', '.', 'The', 'introduction', 'of', 'jacks', 'marked', 'a', 'significant', 'advancement', 'in', 'textile', 'machinery', ',', 'leading', 'to', 'faster', 'production', 'rates', 'and', 'improved', 'fabric', 'quality', '.']
[[29, 29, 'Textile Machinery'], [12, 13, 'Textile Machinery'], [36, 36, 'Textile Machinery'], [52, 53, 'Textile Machinery']]