PROCESS FOR PRODUCTION OF WINDPROOF GLASS FOR WATCHES

PURPOSE:A plank prepared by integrating an annular glass plank having a deformed opening to a glass body having undergone face cutting by heating under pressure is ground and plished to obtain a windproof glass for wristwatches having an optical surface of unique design.

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Bibliographic Details
Main Authors OKUWAKI KANEO, MUTOU SETSUO, IKEZAWA TOORU, TAKAHASHI TSUNEO, MOMOTAKE YOUICHI
Format Patent
LanguageEnglish
Published 28.02.1977
Subjects
CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUSENAMELS
CHEMISTRY
GLASS
HOROLOGY
JOINING GLASS TO GLASS OR OTHER MATERIALS
MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL
MECHANICALLY-DRIVEN CLOCKS OR WATCHES
METALLURGY
MINERAL OR SLAG WOOL
PHYSICS
SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS,MINERALS OR SLAGS
SURFACE TREATMENT OF GLASS
TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
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Summary:PURPOSE:A plank prepared by integrating an annular glass plank having a deformed opening to a glass body having undergone face cutting by heating under pressure is ground and plished to obtain a windproof glass for wristwatches having an optical surface of unique design.
Bibliography:Application Number: JP19750102589