Glassware mold cooling air supply

A glassware forming machine includes a machine section box (12) having a cooling air outlet opening (20), at least one mold-carrying arm (22 or 24) disposed above the section box and movable between mold-open and mold-closed positions, and means for delivering cooling air from the outlet opening to the mold arms. The machine in accordance with this aspect of the disclosure is characterized in that the means for delivering cooling air includes a valve plate (40) mounted on the section box to pivot around an axis and having a valve plate opening (44) that registers with the outlet opening in the section box. A pressure plate (38) is mounted on the mold-carrying arm overlying the valve plate and has a pressure plate opening (36) that registers with the valve plate opening. A coupling (46, 48) between the valve plate and the pressure plate pivots the valve plate on the section box as a function of motion of the mold-carrying arm between the mold-open and mold-closed positions such that cooling air is continuously