Glass sheet heating system including cradled roll conveyor
US4725300A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Feb 11, 1987 |
| Grant date | Feb 16, 1988 |
| Priority date | — |
| Expiry date | Feb 11, 2007 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC03B35/18
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A glass sheet heating system (10) is disclosed as including a cradled roll conveyor (48) incorporated with a furnace (12) having roll contacting seals (58) that directly engage conveyor rolls (60) to prevent heat loss from the furnace. Each roll contacting seal (58) preferably includes a pair of rigid refractory seal holders (64,66) and a pair of soft blanket seals (68,70) made of refractory fibers. Sets of cradle rolls (72) on each side of the furnace have high traction drive elements (78) and cooperate in pairs to rotatably support the conveyor rolls (60) in planarity with each othe to convey glass sheets. A drive mechanism (80) provides driving of the cradle rolls 72 with sufficient friction to overcome the friction generated between the roll contacting seals (58) and the conveyor rolls (60). The drive mechanism (80) preferably includes an elongated drive shaft (82) extending along one side of the furnace (12) and coupled through gear units (90) to alternate cradle rolls (72) on the adjacent side of the furnace, with the other alternate cradle rolls (72) on the adjacent side of the furnace and the other set of cradle rolls on the other side functioning as idlers that interconnec…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.