Apparatus for curving and tempering glass sheets

Details Apparatus for curving and tempering glass sheets Apparatus for curving and tempering glass sheets

1982-06-24

1984-04-10

Kellogg, Arthur D.

Glass manufacturing

Glassworking or preform by or with reheating means

Planar sheet preform

65286, 65348, C03B 2303, C03B 3514

Patent

active

044419090

ABSTRACT:
Apparatus for curving and tempering glass sheets, including a furnace for heating the glass sheets to softening temperature, shaping means for curving the heated glass sheets, and means for tempering the curved sheets arranged in tandum. The glass sheet shaping means includes upper and lower complemental pressing units, and a series of relatively narrow endless belts for receiving the glass sheets from the furnace, positioning them between the pressing units for curving and for subsequently delivering the curved sheets to the tempering means. The shaping means also includes means automatically operable to relieve the tension on the endless belts to bring the travel of the glass sheets to a stop between the pressing units during pressing and to reestablish the tension on said belts after pressing to deliver the curved sheets to the tempering means. The glass sheets are carried through the tempering means upon a series of horizontally spaced rolls, with the adjacent rolls being inclined to opposite directions to form a substantially V-shaped saddle for supporting the curved glass sheets.

REFERENCES:
patent: 3265484 (1966-08-01), Ritter, Jr.
patent: 4318728 (1982-03-01), Claassen

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