. Textile raw materials and their conversion into yarns : (the study of the raw materials and the technology of the spinning process) a text-book for textile, trade and higher technical schools, as also for self-instruction ; based upon the ordinary syllabus and curriculum of the Imperial and Royal Austrian weaving schools. invented inthe sixties, was introduced on the Continent (from England)towards the end of the seventies, and found generally useful,more especially for short-staple cottons. The Single Crighton Opener.—In this machine the cotton isfed by hand into the hopper, a (Fig. 41), an
. Textile raw materials and their conversion into yarns : (the study of the raw materials and the technology of the spinning process) a text-book for textile, trade and higher technical schools, as also for self-instruction ; based upon the ordinary syllabus and curriculum of the Imperial and Royal Austrian weaving schools. invented inthe sixties, was introduced on the Continent (from England)towards the end of the seventies, and found generally useful,more especially for short-staple cottons. The Single Crighton Opener.—In this machine the cotton isfed by hand into the hopper, a (Fig. 41), and, passing throughthe conduit, h, comes under the influence of the quick-runningvertical conical drum, c, which is provided with blades, andworks inside a grid, d, of suitable shape. The cotton intro- 9 12,0 TEXTILE RAW MATERIALS. duced at the bottom of the drum is drawn out, in a loosenedcondition, at the top, being lifted by the centrifugal force anddraught produced by the rotation of the drum. The latter iscomposed of a number of wrought-iron discs, c, kept at suitabledistances apart by cast-iron sleeves, /, placed on the verticalshaft, g. The discs are fitted with steel blades, h and i, ofwhich those marked h are bent upwards, so that a line joiningtheir extremities would describe a spiral ; consequently, when. Fig. 41.—The Crighton Opener (vertical section). the drum is run at a high speed, these blades generate acurrent of air tending to drive the cotton towards the topof the machine. The cotton, though not retained in contactwith the blades any longer than is actually necessary, is,nevertheless, not discharged from the opener until thoroughlyloosened. Moreover, being supported by the current of airalone, while subject to the action of the beaters, it is protected,and at the same time is treated in an efficient manner. When TEXTILE RAW MATERIALS. I31 sufficiently opened, the cotton is carried away by the currentof air, but the heavier, imperfectly opened portions, fal
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Keywords: ., bookcentury1900, bookdecade1900, booksubjecttextile, bookyear1901
