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:
Dec. 29, 1987
Filed:
Mar. 16, 1987
Markus Erni, Winterthur, CH;
Kurt Salvisberg, Gachlingen, CH;
Maschinen Abrik Rieter AG, Winterthur, CH;
Abstract
An apparatus for controlling the effective length of thread wound into a thread package during a winding operation includes a sensor which senses the rotation of a driving roller that drives the package being wound and issues signals representative of the number of revolutions, a divider which divides such signals by a divisor that is selectively adjustable by a user, and a counting arrangement which compares the output of the divider with the desired length of the thread wound into the package as selectively set into the counting arrangement by the user. At least one thread package wound to an actual length with the divisor adjusted to a known value is unwound under conditions that are anticipated to exist during the unwinding of the package by the ultimate user, and the effective length of the unwound thread is measured. The measured value is then used for adjusting the divisor of the divider in the event that the measured effective length deviates from the desired effective length. The operation of the counting arrangement is interrupted when there is encountered a break in the thread being wound.