Blow-molding machine

Claim 1

IN A BLOW-MOLDING MACHINE, THE COMBINATION COMPRISING: (A) A PAIR OF UPRIGHT PARALLEL PLATES AND MEANS TO ROTATE SAID PLATES IN SYNCHRONISM AT CONSTANT EQUAL SPEED ABOUT A HORIZONTAL AXIS; (B) A PLURALITY OF BLOW MOLDS, EACH FORMED OF A PAIR OF COMPLEMENTARY DIES MOUNTED ON SAID PLATES FOR MOVEMENT TOWARD AND AWAY FROM EACH OTHER; (C) A HYDRAULIC RAM CORRESPONDING TO EACH DIE, SAID RAMS ADAPTED TO MOVE THE COMPLEMENTARY DIES OF EACH PAIR IN OPPOSITE DIRECTIONS TO CAUSE SUCCESSIVE OPENING AND CLOSING OF THE CORRESPONDING MOLD; SAID RAMS INCLUDING CYLINDERS FIXED TO SAID PLATES AND RODS SLIDING THROUGH SAID PLATES AND CONNECTED, AT ONE END, TO SAID DIES; EACH RAM HAVING A FLUID INLET END AND A FLUID OUTLET END; (D) MEANS ON EACH PLATE CONTROLLING PRESSURE FLUID ACTUATING SAID RAMS; SAID MEANS INCLUDING: A CYLINDRICAL STATIONARY FLUID DISTRIBUTOR COAXIAL WITH SAID PLATE; AN OUTER SLEEVE MOUNTED FOR ROTATION OVER SAID DISTRIBUTOR AND COAXIALLY SECURED TO SAID PLATE FOR ROTATION THEREWITH; PRESSURE FLUID ADMISSION MEANS AND FLUID EXHAUST MEANS THROUGH SAID DISTRIBUTOR AND SLEEVE SUCCESSIVELY DELIVERING AND EXHAUSTING FLUID ALTERNATIVELY AT EACH FLUID INLET AND OUTLET ENDS TO CAUSE RECIPROCATION OF SAID DIES TO OPEN AND CLOSE SAID MOLDS;