Apparatus for forming articles from overlapping glass sheets

Claim 1

APPARATUS FOR FORMING HOLLOW ARTICLES FROM THERMOPLASTIC SHEET MATERIAL WHICH COMPRISES, A TURRET ROTATABLE ABOUT A CENTRAL AXIS, A PLURALITY OF MOLDS POSITIONED ABOUT THE PERIPHERY OF SAID TURET, EACH SAID MOLD HAVING A PAIR OF LATERALLY SEPARABLE MOLD SECTIONS PROVIDED WITH CONTOURED CAVITIES WHICH COMPLEMENT ONE ANOTHER WHEN SAID MOLD SECTIONS ARE IN AXIAL ALIGNMENT, MEANS FOR PROVIDING A FIRST SHEET OF THERMOPLASTIC MATERIAL OVER A LOWER MOLD SECTION WHILE A COMPLEMENTARY UPPER MOLD SECTION IS LATERALLY DISPLACED, MEANS FOR VACUUM FORMING SAID FIRST SHEET OF THERMOPLASTIC MATERIAL TO CONFORM TO THE CONTOURED CAVITY OF SAID LOWER MOLD SECTION, MEANS FOR PROVIDING A SECOND SHEET OF THERMOPLASTIC MATERIAL OVER SAID FIRST SHEET OF THERMOPLASTIC MATERIAL, MEANS FOR MOVING RELATIONSHIP WITH SAID LOWER MOLD SECTION, MEANS FOR PRESSSAID UPPER MOLD SECTION INTO COOPERATIVE AXIALLY ALIGNED SEALING PORTIONS OF SAID FIRST AND SECOND SHEETS OF THERMOPLASTIC MATERIAL TOGETHER, MEANS FOR VACUUM FORMING SAID SECOND SHEET OF THERMOPLASTIC MATERIAL TO CONFORM TO THE CONTOURED CAVITY OF SAID UPPER MOLD SECTION, AND MEANS FOR REMOVING THE THUS FORMED HOLLOW ARTICLE FROM SAID MOLD.