Patent ID: 8127573

Claim:
An I.S. glass bottle making machine comprising a blow station including a blow mold having a pair of opposed mold halves each having an engagement surface, an outer surface, and top and bottom surfaces, said mold halves moveable in a machine cycle between a closed position, in which the engagement surfaces engage to provide a mold cavity in which a parison can be blown into a bottle, and an open position, a vertical array of cooling passages in each of said mold halves, said cooling passages having a top end at the top surface of the mold and a bottom end at the bottom surface of the mold, aperture means defined in the outer surface of each of said mold halves, said aperture means communicating with said vertical array of cooling passages at an intermediate location between said top end and bottom end of the cooling passages, means for supplying cooling air to a selected end of said array of cooling passages when said mold halves are at the closed position, and means for supplying cooling air to said aperture means when the mold is located at any location between the mold closed position and the mold open position.