The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 31, 1987
Filed:
Sep. 16, 1985
Ernst Felix, Uster, CH;
Peter Feller, Benglen, CH;
Zellweger Uster Ltd., Uster, CH;
Abstract
A rapidly reacting measuring element is used at the delivery of the drafting zone on autolevelling drawframes used in the textile industry, which makes it possible to superimpose on the signal thus obtained from the measuring element by means of an electronic system a further measurement signal at the delivery of the drawing passage and thus correct the parameters governing the drafting values in such a way that even short-term variations in cross-section of the textile material are levelled out. The critical factors here are especially the delay time T of the textile material between the correcting element (pair of drafting rollers with variable speed of rotation) and the measuring element and also the overall amplification V of the measurement signal.