PURPOSE: The female mold-supporter is transferred with a transferring table to receive it with the receiver in a prescribed position whereby the female mold is precisely positioned to prevent the formation of defective products.

CONSTITUTION: The female mold supporter 8 is set on the transferring table 6 which repeats intermittent circling and stopping and the female mold receiver 13 is arranged at a precise position beneath the transferring table 6. Further, an lifter 19 for removing the mold supporter 7 is set so that it can freely move vertically to transfer the female mold from the table 6 to the receiver 13. The supporter 8 holding the female mold 8 is transferred with the table 6 and made to stop at the point which has been precisely positioned above the mold receiver 13. Then, the lifter 19 is elevated to let the support 8 apart from the table 6 and the mold is precisely positioned on the receiver 13, finally melted glass is casted into the female mold 7.