. Textile school catalog, 1916-1917 . lf. The same general idea is carried out in thestudy of the machinery employed in worsted yarn manufacture. Thefollowing is an outline of the subjects: 69 wool, AND WORSTKD COURSE WOOL SORTING AND BLENDING Sorting.—Uses of the sorts.—Different qualities of wool.—Calculations onshrinkages and yields in different grades of stock.—The term Noil.—Variouskinds of noils.—Mungo and shoddy.—Kinds and qualities of shoddies.—Ex-tracts.—Wastes.—Garnetted and other forms.—Flocks.—The methods or pro-cesses by which they are produced.—Uses and clothing properties of woo
. Textile school catalog, 1916-1917 . lf. The same general idea is carried out in thestudy of the machinery employed in worsted yarn manufacture. Thefollowing is an outline of the subjects: 69 wool, AND WORSTKD COURSE WOOL SORTING AND BLENDING Sorting.—Uses of the sorts.—Different qualities of wool.—Calculations onshrinkages and yields in different grades of stock.—The term Noil.—Variouskinds of noils.—Mungo and shoddy.—Kinds and qualities of shoddies.—Ex-tracts.—Wastes.—Garnetted and other forms.—Flocks.—The methods or pro-cesses by which they are produced.—Uses and clothing properties of wool sub-stitutes.—Consideration of the size and nature of fibres which may be blendedin order to produce required results in the yarn and in the finished fabric. WOOLEN YARNS Spinning.—The history and development of spinning.—Hand jack.—Self-operator and self-acting mule.—Present perfection of the mule.—The muleliead.—Means of actuating the rolls, spindles and carriage. — r>;xkir.;-; uft.—. WORSTED GILI^ING AND DRAWING ROOM. One of the series of rooms devoted to Worsted Drawing and Spinning. Winding mechanism.—The quadrant and its functions.—The builder rail andmetliud of regulatnig it.—Automatic regulation of the fallers.—Changing thespeed of the various parts.—Calculations for twists and drafts.—Calculationsfor finding the labor cost of carding and spinning.—Calculations as to netcost of stock used.—Calculations as to allowance for waste and time.—Featuresto be considered in laying out and equijiping a woolen carding and spinningroom, including power transmission, heating, ventilating, humidifying and fireprotection.—Speed for the different grades of yarn. WORSTED YARNS Spinning.—Principles of spinning on the flyer, cap and ring spinningframes.—Worsted mule spinning. 70 SILK COURSE Doubling and Twisting.—Principles of twisting.—Twisting, as performedon the flyer, cap, throstle and ring frames.—Effect o
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