Glass-treating furnace with roller conveyor
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United States of America Patent
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-
Sep 18, 1990
Grant Date -
N/A
app pub date -
Jun 20, 1989
filing date -
Jun 20, 1989
priority date (Note) -
Expired
status (Latency Note)
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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.
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