Textile school catalog, 1909-1910 . ness and length.—Color.—Felting properties.—-Wools of different countries.—Comparison of SI REGULAR COURSE—SECOND YEAR various American wools.—Cashmere.—Alpaca.—Mohair.—Points to be lookedfor when purchasing wool.—Explanation of the term Fleece Wool.—Gradingof the fleece. Note.—Wool scouring and drying considered under Chemistry and Dyeing. WOOLEN YARNS Preparatory Processes.—Burring and picking.—Consideration of thevarious burring and picking machines in general use.—Preparation of mixesand methods adopted in laying down mixes according to desired percentag
Textile school catalog, 1909-1910 . ness and length.—Color.—Felting properties.—-Wools of different countries.—Comparison of SI REGULAR COURSE—SECOND YEAR various American wools.—Cashmere.—Alpaca.—Mohair.—Points to be lookedfor when purchasing wool.—Explanation of the term Fleece Wool.—Gradingof the fleece. Note.—Wool scouring and drying considered under Chemistry and Dyeing. WOOLEN YARNS Preparatory Processes.—Burring and picking.—Consideration of thevarious burring and picking machines in general use.—Preparation of mixesand methods adopted in laying down mixes according to desired percentages.—•Oiling the mix.—Testing and selection of oils. Carding.—Theory of carding.—Explanation of the term set of cards.—Names and uses of the various rolls and cylinders.—Truing up of cylinders.—•The necessary settings and adjustments, together with calculations for changesin the speeds of the different parts. Card Clothing.—The essentials of good clothing.—Construction, classiiica-. WOOL CARDING AND SPINNING. tion, and uses.—Methods of clothing the various rolls and cylinders.—Theprinciples of grinding and the practical accomplishment thereof.—Frame,Traverse and roll grinders. Feeds.—Hand, ball, creel, and automatic feeds carefully considered.—The construction and adjustments necessary for the satisfactory operation of theBramwell, Apperly, Scotch, Tindel, Fisher, etc. Condensers.—The various forms of condensers in general use.—Ring sys-tem.—Single and double doffers.—Bolette single doffer.—Steel blade dividers.—German single doffer strap dividers. Rubbing Motions.—Rolls.—Aprons.—Aprons and rolls combined.—Single,double and quadruple bank apron rubbers thoroughly studied, together with themethods and appliances used in the making of the various woolen novelty yarns. In addition to the above a limited amount of machine sketchingand drawing is required, so that by thus supplementing the lectures 52 R
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