Method and apparatus for measurement of stress in float glass
US4619681A · kind A · utility
7Cited by
9References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 17, 1985 |
| Grant date | Oct 28, 1986 |
| Priority date | — |
| Expiry date | Apr 17, 2005 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01L1/241
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The invention relates to the measurement of stresses in float glass. In a process, the stresses in the glass are continuously determined by scanning the glass over its entire width and simultaneously measuring the temperature of the glass at each location scanned. A measurement of double refraction representing stresses is combined with the temperature measurement to establish values of the permanent stresses in the glass. The invention includes apparatus for carrying out the process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.