. 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. eper, d, which feeds them to the feed rollers, e, thelower of the pair being provided with a cleaner roller,/. Thelap is delivered over to the licker-in roller, g—the clothing ofwhich and of the other rollers is shown in Fig. 135—where itis freed from neps, husks, seeds, fr
. 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. eper, d, which feeds them to the feed rollers, e, thelower of the pair being provided with a cleaner roller,/. Thelap is delivered over to the licker-in roller, g—the clothing ofwhich and of the other rollers is shown in Fig. 135—where itis freed from neps, husks, seeds, fragments of wood, etc., bythe burr knife, h, so that the material delivered to the cylinder,T, is already fairly clean. If, however, there still remain anyundesirable impurities adhering thereto, these are removed bythe first clearer roller, W\ and thrown into the dirt trough, k,against the sharp-edged rail, xr, the trough, when full, beingremoved at m and emptied. The material is worked betweenthe workers and clearers, A\ W^; A-, W-; A^ W^ etc., and thecylinder, T, just as in the carding of ordinary cotton, thecylinder giving up the excess of cotton to the worker roller, TEXTILE RAW MATERIALS. 231 whence it is stripped and returned to the cylinder by theclearer. This is repeated until the cotton can pass through. the space between the worker and the cylinder, and the opera-tion goes on in the same way between each succeeding workerand the cylinder (the setting being progressively closer). The 232 TEXTILE RAW MATERIALS. final pair of workers and clearers, A, W*, is succeeded by thefancy roller, V, a roller which runs at a higher peripheralvelocity than the cylinder, in order to lift the cotton held inthe clothing of the latter and facilitate the action of the doffer,P. For this reason the fancy roller is provided with elasticcard clothing (Figs. 66 to y^,), the long pins of which engagein the clothing of the cylinder. The fancy roller clothing iscleaned by means of the rolle
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Keywords: ., bookcentury1900, bookdecade1900, booksubjecttextile, bookyear1901
