['239', '(#311)', '############################################', 'PRINCIPLES', 'AND', 'PRACTICE', 'this', 'angle,', 'but', 'usually', 'the', 'twist', 'will', 'be', 'below', 'this,', 'and', 'in', 'the', 'case', 'of', 'lustres,', 'etc.,', 'yarns,', 'as', 'low', 'as', 'possible.', 'Generally', 'speaking', 'for', 'worsted', 'yarns', 'the', 'twist-angles', 'will', 'be', 'Drafting', 'twist', '4°', 'to', 'gº', 'Hosiery', 'twist', '8°', 'to', '16°', 'Normal', 'twist', '16°', 'to', '24°', 'To', 'decide', 'the', 'lowest', 'possible', 'twist', 'would', 'require', 'knowledge', 'of', 'frictional', 'coefficients', 'on', 'each', 'type', 'of', 'material,', 'effects', 'of', 'twist', 'on', 'strength,', 'weaving', 'strength', 'required,', 'etc.', 'etc.', 'Here', 'again', 'is', 'a', 'large', 'field', 'for', 'research.', 'To', 'decide', 'the', 'arrangement', 'of', 'fibres', 'in', 'the', 'thread', 'is', 'really', 'to', 'select', 'the', 'type', 'of', 'spinning-frame', 'or', 'mule.', 'For', 'all', 'frames', 'direct', 'the', 'fibres', 'away', 'from', 'the', 'spindle', 'during', 'twisting', 'and', 'consequently', 'the', 'fibres', 'have', 'a', 'given', '"inclination."', 'This', 'is', 'clearly', 'shown', 'by', 'making', 'a', 'warp', 'with,', 'say,', '200', 'threads', 'with', 'fibres', 'pointing', 'in', 'one', 'direction', 'and', '200', 'threads', 'with', 'the', 'fibres', 'pointing', 'in', 'the', 'other', 'direction.', 'The', 'cloth', 'made', 'from', 'this', 'will', 'show', 'stripes', 'just', 'like', 'a', '"chain-harrowed', '"', 'grass', 'field.', '.', 'If', 'in', 'mule', 'spinning', 'the', 'slivers', 'were', 'delivered', 'and', 'the', 'carriage', 'arrived', 'at', 'the', 'extremity', 'of', 'its', 'traverse', 'without', 'any', 'twist', 'being', 'put', 'into', 'the', 'yarn,', 'and', 'then', 'the', 'yarn', 'were', 'twisted,', 'it', 'is', 'quite', 'possible', 'that', 'the', 'fibres', 'would', 'radiate', 'out', 'from', 'the', 'central', 'core', 'of', 'the', 'thread', 'without', 'any', 'specific', 'direction.', 'But,', 'again,', 'this', 'experiment', 'has', 'probably', 'never', 'been', 'tried', 'the', 'insertion', 'of', 'the', 'twist', 'and', 'the', 'slight', 'gain', 'of', 'the', 'carriage', 'in', 'normal', 'worsted-', 'mule', 'spinning', 'will', 'probably', 'be', 'quite', 'sufficient,', 'as', 'a', 'rule,', 'to', 'give', 'a', 'distinct', 'inclination', 'to', 'the', 'exterior', 'fibres.', 'Speed', 'of', 'spin', 'also', 'appears', 'from', 'the', 'following', 'record', 'to', 'affect', 'the', 'fibre', 'arrangement,', 'and', 'it', 'is', 'possible', 'the', '239']
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