['215', '(', '287', ')', 'TYPES', 'OF', 'DRAWING MACHINES', 'slivers', 'from', 'any', 'machine', 'due', 'deference', 'must', 'be', 'paid', 'to', 'their', 'feed', 'into', 'the', 'next', 'machine.', 'In', 'balling', 'slivers', 'for', 'strong', 'or', 'finishing boxes', ',', 'or', 'in', 'adopting', 'balling-', 'heads', 'rather', 'than', 'can-deliveries', 'for', 'the', 'gill-boxes', 'of', 'drawing', 'sets', 'of', 'machinery', ',', 'care', 'must', 'be', 'taken', 'to', 'avoid', 'feathering', '”—that', 'is', ',', 'a', 'roughing-up', 'of', 'the', 'fibres', 'from', 'the', 'edges', 'of', 'the', 'slivers', 'and', 'incorporation', 'into', 'the', 'earlier', 'unwound', 'coils', 'from', 'the', 'ball.', 'Thus', 'the', 'tendency', 'of', 'the', 'wool', 'composing', 'certain', 'slivers', 'to', 'cling', '(', 'no', 'doubt', 'due', 'to', 'treatment', 'in', 'the', 'earlier', 'processes', ')', 'may', 'necessitate', 'different', 'forms', 'of', 'delivery', 'and', 'feed.', '"', 'Can', '"', '-delivery', 'for', 'open', 'slivers', 'is', 'usually', 'satisfactory', ',', 'but', 'it', 'entails', 'additional', 'expense', 'in', 'comparison', 'with', 'ball', 'delivery.', 'In', 'the', 'case', 'of', 'French drawing machinery', ',', 'if', 'the', 'rubbers', 'are', 'acting', 'efficiently', ',', 'ball', 'or', 'cheese', 'delivery', 'should', 'be', 'absolutely', 'efficient.', 'The', 'ingenious', 'French', 'method', 'of', 'winding', 'two', 'slivers', 'into', 'one', 'ball', 'of', 'course', 'gives', 'double', 'the', 'pulling-off', 'strength', 'and', 'in', 'the', 'case', 'of', 'the', 'finer', 'meches', 'undoubtedly', 'helps', 'to', 'obviate', 'strained', 'and', 'irregular', 'slivers.', 'Floor', 'space', 'available', 'is', 'another', 'factor', 'to', 'be', 'taken', 'into', 'account—but', 'nothing', 'can', 'com-', 'pensate', 'for', 'inefficiency', 'in', 'either', 'taking-out', 'of', 'or', 'feeding-', 'into', 'worsted drawing machines', '(', '6', ')', 'The', 'Passage', 'through', 'the', 'Machine', 'Mechan-', 'isms.', 'The', 'parts', 'of', 'the', 'machine', 'here', 'involved', 'arem', '1.', 'Back rollers', 'and', 'their', 'control', ';', '2.', 'Fallers', ',', 'porcupines', 'or', 'carriers', ';', 'and', '3.', 'Front rollers', 'The', 'construction', 'of', 'the', 'back rollers', 'must', 'be', 'thought', 'out', 'with', 'a', 'clear', 'insight', 'into', 'their', 'functions.', 'Obviously', 'they', 'must-', 'Draw-off', 'the', 'sliver', 'or', 'slivers', 'from', 'the', 'feed', 'mechanism', 'regularly', 'and', 'positively', ';', '215']
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