Glass manufacturing – Processes – Reshaping or surface deformation of glass preform
Patent
1989-10-04
1991-04-23
Lindsay, Robert L.
Glass manufacturing
Processes
Reshaping or surface deformation of glass preform
65104, 65273, 65290, C03B 23033
Patent
active
050096931
ABSTRACT:
A batch method and apparatus for bending glass sheets includes an oven where the glass sheet is oscillated back and forth on mini-rollers until it reaches a hot, softened condition, at which point the vertical position of the rollers is changed so that the top surface of the rollers have the contour of a desired bent glass sheet. The hot glass sheet conforms to the contour of the rollers and is quickly transferred to a quench section for quenching. The quench section includes rollers and quench tubes which have the same contour as the bent glass sheet.
A continuous method and apparatus for bending glass sheets includes an oven having a heating section where a glass sheet is heated to a hot, softened condition while being conveyed on full faced rollers, and a bending section having minirollers which support the flat glass sheet and then change in vertical position to the contour of the desired bend for bending the hot, softened glass sheet. The hot glass sheet conforms to the contour of the rollers and is quickly transferred to a quench section for quenching. The quench section includes rollers and quench tubes which have the same contour as the bent glass sheet.
A roller for use in the bending apparatus includes a central hub and a plurality of spokes extending radially outwardly from the hub to form chambers which have barrels that are rotatably mounted along their longitudinal axis in the chambers, and include ceramic rope wrapped around the surface of the barrels to prevent scuffing of the glass.
Another type of roller assembly for use in the glass bending apparatus includes a plurality of rollers mounted on support shafts. The support shafts pivot, which tilts the rollers, so that the surface of the roller is tangent to the bottom of the bent glass sheet.
REFERENCES:
patent: 4139359 (1979-02-01), Johnson et al.
patent: 4305746 (1981-12-01), Hagedorn et al.
patent: 4437872 (1984-03-01), McMaster et al.
patent: 4540425 (1985-09-01), Bocelli et al.
patent: 4773925 (1988-09-01), Schultz
patent: 4822398 (1989-04-01), McMaster et al.
patent: 4881962 (1989-11-01), Reunamaki
Freidel Kenneth
Freund William G.
Littleton L. Arthur
A. Earley John F.
A. Earley III John F.
Lindsay Robert L.
Muirfield Holdings L.P.
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