Glassware forming machine with cooling system

A glassware forming machine comprising:

• a pair of carriers each pivoted on a generally vertical axis for swinging movement toward and away from each other between an open position and a closed position,
• a plurality of mold members carried by each carrier, each mold member on each carrier being related to a mold member on the other so that, with the carriers in their said closed position, each mold member on one carrier mates with a mold member on the other to define a mold cavity for molding an item of glass,
• each mold member having air passages extending upwardly from the bottom thereof for passage of air therethrough for cooling,
• and means for blowing air through said air passages comprising:
• a plenum carried by each carrier for delivering air to the air passages of the mold members carried by the carrier, the mold members extending up from the plenum and the plenum having ports at the top thereof for flow of air up into the passages in the mold members and thence up through and out of said passages,
• means providing a chamber below said carriers for air to be blown into the plenums and thence up through said air passages, and
• means for delivery of air from said chamber means to each plenum allowing swinging of said carriers and comprising, for each carrier:
• means defining an air outlet at the top of the chamber means,
• said air outlet means having a generally flat top with an opening therethrough in communication with said chamber for delivery of air from said chamber up through said opening,
• a generally flat circular closure for said outlet means oscillable on its center on a generally vertical axis spaced from the carrier axis,
• said closure overlying the opening in the top of the outlet means,
• said closure and the top of the outlet means having adjacent annular surfaces centered in the closure axis inhibiting air from escaping at the periphery of the closure from between the closure and the top of the outlet means,
• said circular closure having a circular hole extending therethrough from its top to its bottom spaced from its axis,
• the plenum having a bottom wall with an opening therein,
• air duct means for flow of air from the outlet to the plenum having a generally horizontal section, an inlet end section extending down from one end thereof into the hole in the closure and an outlet end section extending up from the other end thereof to the opening in the bottom wall of the plenum,
• said inlet end section being in communication at its lower end with said outlet,
• said inlet end section and said closure being relatively rotatable in generally sealed relation with respect to the circular hole in the closure,
• said outlet end section being relatively rotatable in generally sealed relation with respect to the opening in the bottom all of the plenum,
• said circular closure being oscillable on its axis through an angle in one direction from a first position to a second position on swinging of the respective plenum with the respective carrier from open to closed position and back in the opposite direction to its first position on swinging of the respective plenum with the respective carrier back to open position,
• air flowing up from said outlet passing directly upwardly through the inlet end section to the horizontal section, thence through the horizontal section, and thence up through the outlet end section of the air duct means to the plenum throughout the range of oscillation of the closure.