Cooling vacuum holder by suction

Details Cooling vacuum holder by suction Cooling vacuum holder by suction

C - Chemistry, Metallurgy

03

B

269/1, 294/2, 49

C03B 23/035 (2006.01) B29C 51/00 (2006.01)

Patent

CA 1199798

ABSTRACT In the art of shaping sheets of glass and other deformable materials comprising engagement of said sheets while hot by a vacuum holder in a relatively hot atmosphere and removing the holder into a cooler atmosphere to cool the holder between successive shaping cycles, production of shaped sheets was limited by the time necessary for the holder to cool during its exposure to said cooler atmosphere to a temperature suitable for beginning a subsequent sheet shaping cycle. The present invention lessens this necessary time by drawing cold air by suction from said cooler atmo- sphere between successive shaping cycles, thereby increasing the maximum production rate possible.

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