The textile industries : a practical guide to fibres, yarns & fabrics in every branch of textile manufacture, including preparation of fibres, spinning, doubling, designing, weaving, bleaching, printing, dyeing and finishing (1910)
Murphy, William S · London : The Gresham Publishing Company · leaf 40
y and abroad; but the Jamieson tappet illustratessufficiently the principles of the class, which is, after all, not veryimportant. The Woodcroft Tappet.—Positive tappets, though primarily nothingmore than cams with an outer flange, began a new range of develop-ment which has practically issued in… … the same pattern. Half-circles the diameter of the treadle bowl aresufficient for the outline of the negative tappet, but for the plan ofthe positive tappet the full circle of the treadle bowl is required. Theline of the outer flange is drawn upon tangents from those circles; butfrom such a plan…
Textile industry · Textile fabrics
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