['The', 'woollen', 'cropping', 'machine', ',', 'a', 'vital', 'piece', 'of', 'equipment', 'in', 'textile', 'manufacturing', ',', 'was', 'designed', 'to', 'trim', 'and', 'finish', 'wool', 'fabrics', ',', 'ensuring', 'that', 'they', 'had', 'a', 'smooth', 'and', 'uniform', 'surface', '.', 'This', 'machine', ',', 'which', 'became', 'widely', 'used', 'during', 'the', 'early', '20th', 'century', ',', 'featured', 'sharp', 'blades', 'that', 'carefully', 'cropped', 'the', 'surface', 'of', 'the', 'wool', ',', 'removing', 'any', 'irregularities', '.', 'Another', 'significant', 'machine', 'of', 'that', 'era', 'was', 'the', 'carding', 'machine', ',', 'which', 'played', 'a', 'crucial', 'role', 'in', 'preparing', 'wool', 'for', 'spinning', '.', 'By', 'disentangling', 'and', 'aligning', 'the', 'fibers', ',', 'the', 'carding', 'machine', 'transformed', 'raw', 'wool', 'into', 'a', 'continuous', 'web', ',', 'ready', 'for', 'further', 'processing', '.']
[[1, 3, 'Textile Machinery'], [70, 71, 'Textile Machinery']]