Device for obtaining a control signal corresponding to the density of the fibre web lying on a fibre-carrying element of a card
US4272868A · kind A · utility
9Cited by
3References
28Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 26, 1979 |
| Grant date | Jun 16, 1981 |
| Priority date | — |
| Expiry date | Apr 26, 1999 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N21/86
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A device for obtaining a control signal corresponding to the density of the fibre covering lying on a fibre carrying element such as the cylinder, the licker-in, the take-off roller, or the doffer of a card. The device includes a holder which extends over the width of the fibre carrying element to span the width of the fibre covering on the fibre carrying element. This holder contains means responsive to the density of the fibre covering which produces electric output signals corresponding to the density of the fibre covering.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.