['The', 'woollen', 'cropping', 'machine', 'was', 'widely', 'used', 'in', 'the', 'textile', 'industry', 'during', 'the', 'late', '19th', 'century', '.', 'This', 'innovative', 'machine', 'played', 'a', 'crucial', 'role', 'in', 'the', 'finishing', 'process', 'of', 'wool', 'fabrics', ',', 'allowing', 'for', 'a', 'uniform', 'and', 'smooth', 'surface', '.', 'Operators', 'would', 'feed', 'the', 'raw', 'wool', 'into', 'the', 'machine', ',', 'which', 'would', 'then', 'shear', 'the', 'fibers', 'to', 'the', 'desired', 'length', '.', 'The', 'resulting', 'fabric', 'was', 'then', 'ready', 'for', 'dyeing', 'or', 'weaving', '.', 'Another', 'significant', 'invention', 'of', 'this', 'era', 'was', 'the', 'carding', 'machine', ',', 'which', 'helped', 'in', 'separating', 'and', 'aligning', 'the', 'wool', 'fibers', 'before', 'they', 'were', 'spun', 'into', 'yarn', '.', 'Both', 'machines', 'revolutionized', 'wool', 'production', 'and', 'set', 'the', 'stage', 'for', 'modern', 'textile', 'manufacturing', '.']
[[1, 3, 'Textile Machinery'], [80, 81, 'Textile Machinery']]