Winder speed control apparatus
US5178341A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 21, 1992 |
| Grant date | Jan 12, 1993 |
| Priority date | — |
| Expiry date | May 21, 2012 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65H23/1806
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A speed control assembly for a rotatable web winding apparatus comprising a dancer engaged with a web of material wound about the winder apparatus for displaceably responding within a predetermined range of dancer positions to tension variations in the web; a first control signal generating device for generating a first control signal in response to dancer displacement from a predetermined centered position, the ratio of dancer displacement to the first control signal being variable over the range of dancer displacement positions; and a dancer response rotation control device for rotationally accelerating the winding apparatus in response to the first control signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.