FLOWER GLASS POT HAVING PENETRATED HOLE AT CENTER OF BOTTOM PORTION AND ITS PRODUCTION

摘要

PROBLEM TO BE SOLVED: To provide a flower glass pot having a penetrated hole at the center of the bottom portion by a centrifugal molding method without needing a process for forming the hole at the ordinary temperature. SOLUTION: This flower glass pot having a penetrated hole at the center of the bottom portion is produced by supplying a melted glass gob in a doughnut-like shape into a centrifugal mold having a columnar core bar mold 2 vertically standing from the center of the bottom portion of the mold, fitting a hollow shaft-like female mold having a depression for fitting onto the core bar mold 2 onto the core bar mold 2 to press down the melted glass gob, taking out the female mold and subsequently centrifugally molding the melted glass.