. 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. tted with a hinged lid, m. The ribbon folds in the conduit,and on overcoming the pressure of the lid issues therefromand falls, in irregular coils, into the can, n. The object of thisarrangement is to render the ribbon more supple, and enableit to coil more closely in the c
. 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. tted with a hinged lid, m. The ribbon folds in the conduit,and on overcoming the pressure of the lid issues therefromand falls, in irregular coils, into the can, n. The object of thisarrangement is to render the ribbon more supple, and enableit to coil more closely in the can than it would do if allowedfree exit from the machine. The lower drawing roller, d, iskept clean by the leather belt, 0, and the feed creeper, a, issupported by a board, p. TEXTILE RAW MATERIALS. 467 XI.—Doubling and Drawing. The ribbons formed in the last-named machine are doubledand drawn three or four times to mix, attenuate and regularisethem, so that they are fit for conversion into rove. Thewaste-silk drawing frame employed for this purpose resemblesthe preceding gill box, and also the corresponding machinesused for worsteds. This will be evident from a glance atFigs. 290 and 291, the former showing a gill box withoutcondensing rubbers, and the latter a drawing frame fittedwith these attachments. / / / ^1. Fig. 290.—Gill Box for Waste Silk (vertical longitudinal section). In Fig. 290 the ribbons, 6, from the cans, a (about sixteen),are passed over a guide frame, c, then under a guide roller, d,to the receiving rollers, e,f, g, and thence through the gills, h,to the drawing rollers, i, k, the draft being about traversing the condensing trumpet, /, and the deliveryrollers, in, n, the ribbons are discharged through the conduit, 0(with lid, p), into the can, q. They are subsequently passedthrough tvv^o other gill boxes or drawing frames, and finallytreated in the condenser (Fig. 291). 468 TEXTILE RAW MATERIALS. Here the ribbons, h (about twelve in num
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Keywords: ., bookcentury1900, bookdecade1900, booksubjecttextile, bookyear1901
