Glass-treating furnace with roller conveyor
US4957532A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 20, 1989 |
| Grant date | Sep 18, 1990 |
| Priority date | — |
| Expiry date | Jun 20, 2009 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC03B35/164
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A furnace for the heat treating of glass, has a housing defining an elongated furnace chamber having opposite longitudinal sides and having an inlet end and an outlet end. A roller conveyor extends between the inlet end and the outlet end. The roller conveyor has a respective row of stub rollers spaced apart along each longitudinal side of the chamber, and respective conveyor rollers spanning the rows of stub rollers and cradled thereby. A respective idler pulley is disposed between each two successive stub rollers along one of the longitudinal sides of the chamber, the idler pulleys lying in a further row below the row of stub rollers. An endless drive element overshoots two successive stub rollers of the section in a respective single loop and undershoots each of the pulleys in a respective single loop between each of the two successive stub rollers to reduce the required driving power.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.