Weigh roving samples to detect weight variation caused by tape condensers.
What does a Roving Sizer do?
Weighs roving samples to detect variation in weight produced by tape condensers of woolen carding machines: Positions jackspool of roving in winding position and threads roving ends from spool through guides and takeup roller. Sets yardage counter at specified yardage and turns crank to wind sample of roving. Weighs sample on grain scales and records weight on chart. Plots weight of each end of roving produced by single carding machine on graph paper and compares graph with standard graph to isolate variations in roving. Reports variations from standards to MACHINE FIXER.