. 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. released bythe cam, h, the result being that the wool is delivered into theperforated box, q, where it is left to drain. The transmissionof motion to the working parts from the fast pulley can beeasily seen from Fig. 187. II.—Draining and Drving the Wool. I. Draining. The m
. 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. released bythe cam, h, the result being that the wool is delivered into theperforated box, q, where it is left to drain. The transmissionof motion to the working parts from the fast pulley can beeasily seen from Fig. 187. II.—Draining and Drving the Wool. I. Draining. The machines employed for this purpose all effect, bymechanical means, the expulsion of the greater part of thewater remaining adherent to the loose wool. The two differenttypes used are {a) the wringer, and (h) the hydro-extractor, orcentrifugal machine. (a) The Wool Wringer. This machine, which is rather out of date, and only usedin small works, is shown as a side view in Fig. 189. Thedamp wool is placed as a fairly thick layer on the feed creeper,a, and is thereby fed to the rollers, b, c, which seize it, expressthe moisture and deliver the wool on to a creeper, d, from TEXTILE RAW MATERIALS. 307 which it drops into a basket. The upper roller, which is coveredwith hempen cord, sacking or combed fleece, is mounted in. tlG. i8g.—Wool Wringer (side view). slide bearings, and heavily weighted by a lever, c, rod,/, andcoiled spring, ^. {h) Hydro-Extractors. Centrifugal draining machines have been used in the textileindustry for about fifty years, their importance increasing yearlyby reason of the fact that they expel the water in a morecomplete manner than any other mechanical appliance known. The wool is placed in a rotary basket running at highspeed, the water being driven, by the action of centrifugalforce, through the perforations in the basket and leaving thedry wool behind. The centrifugal machine was invented by the French 3o8 TEXTILE RAW MATERIALS. technicist, Penzoldt, wh
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Keywords: ., bookcentury1900, bookdecade1900, booksubjecttextile, bookyear1901
