LIQUID COOLING OF GLASSWARE MOLDS

摘要

A glassware forming mold that includes a body of heat conductive constructi on having a central portion with a forming surface for shaping molten glass and a peripheral portion spaced radially outwardly of the central portion. A plurality of coolant passages extend in a spaced array through the peripheral portion of the mold body, and liquid coolant is directed through such passages for extracting heat from the body by conduction from t he forming surface. A plurality of openings extend axially into the body radially between at lea st some of the liquid coolant passages and the forming surface for retarding heat transfer from th e forming surface to liquid coolant in the passages.