. 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. , gives a yarn of uniformcolour and quality. A superior cotton may be mixed with a certain quantityof a lower grade without the resulting product being appreci-ably deteriorated thereby. Spinners rightly prefer to mixgrades of approximately equal length of staple, and o
. 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. , gives a yarn of uniformcolour and quality. A superior cotton may be mixed with a certain quantityof a lower grade without the resulting product being appreci-ably deteriorated thereby. Spinners rightly prefer to mixgrades of approximately equal length of staple, and of similarproperties in general. After the bales have been unhooped the separate tufts•of adherent fibres are loosened by hand—or latterly by amachine known as a bale-breaker—and the contents of thevarious bales are then spread out in horizontal layers on amixing floor, a fairly uniform mixture of the fibres being?obtained by drawing the cotton in vertical strata from thepile. Arrangement and Working of the Bale Breaker with EndlessConveyer {Lattice Creeper). The arrangement and working of the bale breaker, withendless conveyer, will be gathered from the vertical section TEXTILE RAW MATERIALS. and ground plan shown in Figs. 35 and t,6. The cotton to beloosened is placed in moderate quantities at a time on the. Figs. 35 and 36.—Bale Breaker, with Endless Conveyer: 35, VerticalSection : 36, Plan. feed table, a, an endless conveyer which delivers it to thecollecting roller, h. This slightly compresses the cotton and TEXTILE RAW MATERIALS. 123 turns it over to the grooved or toothed breakers, of whichthere are four pairs, c, d, c, f, each pair being kept in contactby means of springs, and running at a higher speed than itspredecessor. By this means any knotty and lumpy pieces inthe cotton are drawn apart, loosened and opened, thus enab-ling any hard substances (stones, sand, nails, seeds, etc.), presentto fall down into the sloping iron shoot, g, which dischargesthem from th
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Keywords: ., bookcentury1900, bookdecade1900, booksubjecttextile, bookyear1901
