Abstract
The addition of a data tabulator to any of the current instruments which graphically depicts sliver, roving, or yarn uniformity vastly extends the usefulness of the instrument. The present paper is intended to provide a working outline. It highlights the nature of the fundamental prob lems which arise as a consequence of the broad sampling and methods made practical by the tabu lator. Illustrations are based on the type of tabulator described by Rusca and applied to the Saco-Lowell sliver tester.
The subjects discussed are: the function of a tabulator, the type of data made available, the mini mum continuous sample length, periodicity of variations within a sample, variations between samples, and evaluation of mill machine performance.
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