| 摘要 |
805,057. Bending glass sheets. LIBBEYOWENS-FORD GLASS CO. Feb. 11, 1957 [Feb. 29, 1956No. 4531/57. Class 56. [Also in Group XII] To retard the heating of a selected portion of a glass sheet passing through a bending furnace, particularly the central portion of a curved windscreen that does not require such severe bending as the wing portions, relatively cool fluid is admitted into the atmosphere adjacent the selected portion. This may be done by the heat of the furnace causing water to boil in a perforated-top container 29 carried by the mould carriage C beneath the glass sheet 33. Specification 768,781 is referred to. |
