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XXVI.—A New Method of determining the Degree of Twist in Single Threads

Published online by Cambridge University Press:  15 September 2014

Thomas Oliver
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Extract

The determination of the degree of twist in a folded or ply thread composed of two or more strands is an easy matter. It is merely necessary to stretch the thread between two clamps, one being fixed and the other forming the end of a bar which can be rotated about its axis. A counter is attached to indicate the number of rotations. Rotating the thread in the opposite direction to its twist ultimately brings the singles parallel to each other. This point is easily observed. If we apply this method to single yarns we are at once confronted with the difficulty that the fibres constituting the yarn cannot be reduced to exact parallelism with each other.

Type
Proceedings
Information
Proceedings of the Royal Society of Edinburgh , Volume 27 , 1907 , pp. 264 - 268
Copyright
Copyright © Royal Society of Edinburgh 1907

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References

page 265 note * “The Relation between Take-up and Degree of Twist in Twisted Threads,” Proc. Roy. Soc. Edin., 1906, vol. xxvi., part iii., pp. 182-206. “The Relation between Take-up and Yarn Number for constant Twist in Twisted Threads,” Proc. Roy. Soc. Edin., 1906, vol. xxvii., part ii., pp. 93-106. “The Relation between Take-up and Degree of Twist in Twisted Threads with Singles of unequal Sizes.” Proc. Roy. Soc. Edin., 1906, vol. xxvii., part ii., pp. 107-116.

page 268 note * Proc. Roy. Soc. Edin., 1907, vol. xxvii., part. iii.