Glass manufacturing – Glassworking or preform by or with reheating means – Planar sheet preform
Patent
1988-07-11
1990-01-09
Kellogg, Arthur
Glass manufacturing
Glassworking or preform by or with reheating means
Planar sheet preform
65104, 65107, 65290, 65291, C03B 23025
Patent
active
048925748
ABSTRACT:
The critical peripheral sections of glass sheets are bent to a deep or sharp curvature through the use of a plurality of press forming means integrally provided on the mold ring of a gravity bending and tempering horizontal lehr, said press forming means each comprising a machined press forming die articulated to a retractible arm, said press forming die having a shape complementary to the specific shape desired at the sheet glass section to be press formed, said retractible arm being actuated between a retracted and an operative or press forming position by driving means capable of providing thereto a controlled motion, speed and pressure to carry out the press forming operation an instant after the glass sheet has been deposited on the mold ring ant to be retracted an instant before the glass sheet enters the tempering section.
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Kellogg Arthur
Vitro Flex, S.A.
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