A flaskless molding machine is disclosed for producing continuous stacks of molds. The machine comprises four operating stations disposed on ninety degree spacing about its periphery. Two oppositely disposed stations are mold forming stations and the alternate two stations are the receiving ends of oppositely spaced mold decks upon which the completed molds are stacked. A body containing four mold forming chambers oscillates between two positions to place the respective chambers alternately in alignment with the mold forming stations and the ends of the mold decks where the operations are performed.
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