Вот здесь есть определение этого параметра waywind в аналогичном контексте машин для намотки/скрутки стекловолокна.
Это безразмерная величина, равная числу оборотов гильзы на один цикл скрутки.

Method for controlling wind angle and waywind during strand package buildup
United States Patent 6568623

Typically, continuous fibers, such as glass fibers, are mechanically pulled from a feeder of molten glass. The feeder has a bottom plate, or bushing, which has anywhere from 200 to 10,000 orifices. In the forming process, the strand is wound around a rotating drum, or collet, to form, or build, a package. The completed package consists of a single long strand. It is preferable that the package be wound in a manner which enables the strand to be easily unwound, or paid out. It has been found that a winding pattern consisting of a series of helical courses laid on the collet builds a package which can easily be paid out. Such a helical pattern prevents adjacent loops or wraps of strand from fusing together should the strand be still wet from the application of the size material. The helical courses are wound around the collet as the package begins to build. Successive courses are laid on the outer surface of the package, continually increasing the package diameter, until the winding is completed and the package is removed from the collet. The waywind is the number of rotations of the collet during the traverse of the cam follower and guide eye from one end of the package to the other (usually a number between 2 and 4).
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