Apparatus for applying tensile stress to fiber
US4148218A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 17, 1978 |
| Grant date | Apr 10, 1979 |
| Priority date | — |
| Expiry date | Apr 17, 1998 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2203/028
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
First and second tractor assemblies apply a preset tension to incremental lengths of fiber which moves continuously through the apparatus. The apparatus performs the functions of fiber pulling and non-destructive testing of all of the fiber. Each tractor assembly includes a tractor wheel and belt wheels. A belt extends around the belt wheels and engages the tractor wheel in an arc. The fiber passes between the belt and the tractor wheel in this arc. The second tractor assembly has a constant torque drive with an unloaded speed which is faster than that of the first tractor assembly. The second tractor assembly pulls the fiber thereby reducing the speed by causing the constant torque device to overload and slip.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.