Method for attenuating float glass
US4343642A · kind A · utility
2Cited by
10References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 1, 1980 |
| Grant date | Aug 10, 1982 |
| Priority date | — |
| Expiry date | Aug 1, 2000 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC03B18/06
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The marginal edge portions of an accelerating ribbon of float glass are engaged by a plurality of opposed pairs of attenuating devices, each pair exerting substantially equal forces. The pairs of attenuating devices are positioned longitudinally adjacent one another such that the ratio of the ribbon width intermediate adjacent pairs to the average of the ribbon widths at each pair is greater than 0.95. The attenuating devices may be edge rolls each rotating with a peripheral velocity a predetermined amount greater than the linear velocity of the ribbon immediately upstream.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.