Fabric analysis; covering wool, worsted, silk, cotton, artificial silk, etc. from fiber to finished fabric (1920)
Posselt, E. A. (Emanuel Anthony), 1858-1921 · Philadelphia, Textile Pub. Co · leaf 131
For example, let us consider the testing of cotton yarns. The standard length for testing cotton yarn is the Lea of 120 yards, which equals (840^120 = 7) \th of a hank, and which is measured by an apparatus known as the Wrap Reel, the circumference of which is 54 inches, or IJ yards. Therefore 80… … Fig, 55 Wrap reels are built to handle from four to seven cops, bobbins, or skeins. Be careful to have a uniform tension and traverse of the threads during winding, the same having an important effect upon the result of the test. Fig, 54 shows such a wrap reel in its perspective view, the same…
Textile fabrics
Internet Archive · Claire T. Carney Library, University of Massachusetts Dartmouth · Public domain (published before 1931). Free to use for anything.