Glass blowing machine blowhead and article cooling tube combination

Claim 1

IN A GLASS ARTICLE BLOWING MACHINE INCLUDING A FINISHING MOLD HAVING A CAVITY TO WHICH A HOLLOW GLASS PARISON IS SUPPLIED TO BE BLOWN TO FINAL FORM, THE COMBINATION COMPRISING, A FIRST CYLINDER RIGIDLY MOUNTED ABOVE SAID MOLD CAVITY WITH THE BORE OF SUCH CYLINDER IN CO-AXIAL ALIGNMENT WITH SUCH CAVITY; A SECOND CYLINDER EXTENDING THROUGH THE BORE OF SAID FIRST CYLINDER AND CARRYING A BLOWHEAD ON THE LOWER END THEREOF, SUCH SECOND CYLINDER INCLUDING A PISTON AXIALLY MOVABLE WITHIN THE BORE OF SAID FIRST CYLINDER; A COOLING AIR SUPPLY TUBE EXTENDING THROUGH THE BORE OF SAID SECOND CYLINDER AND INCLUDING A PISTON AXIALLY MOVABLE WITHIN SUCH BORE; FIRST AND SECOND VALVE MEANS FOR SELECTIVELY AND SEPARATELY SUPPLYING FLUID TO THE BORES OF SAID CYLINDERS TO MOVE SAID BLOWHEAD INTO AND OUT OF A GLASS ARTICLE BLOWING RELATIONSHIP WITH SAID MOLD, AND SAID SUPPLY TUBE INTO AND OUT OF THE INTERIOR OF A GLASS ARTICLE BLOW-FORMED IN SUCH MOLD, RESPECTIVELY; AND THIRD AND FOURTH VALVE MEANS FOR SEPARATELY CONTROLLING A SUPPLY OF FORMING AIR AND COOLING AIR TO SAID BLOWHEAD AND SAID SUPPLY TUBE, RESPECTIVELY.