Control device for machining webs
US4080656A · kind A · utility
6Cited by
5References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 21, 1977 |
| Grant date | Mar 21, 1978 |
| Priority date | — |
| Expiry date | Jan 21, 1997 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S162/11
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
In apparatus having at least two roll pairs and/or stretch rolls each having a driving means with an amplifier for speed control, the speed control reference for each drive is developed by summing signals developed in adjacent control circuits such as to obtain a relationship in which, for example, for the second drive the signal is V.sub.0 (1 + S.sub.1) (1 + S.sub.2) where V.sub.0 is a basic speed reference signal and S.sub.1 and S.sub.2 desired relative speed differences for first and second drives to thereby permit speed adjustments.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.