Manufacture of fibers from thermoplastic material, particularly glass fibers

Claim 1

THE METHOD OF MANUFACTURING FIBERS FROM HEATED VISCOUS THERMOPLASTIC MATERIAL, WHICH COMPRISES PROJECTING THE HEATED VISCOUS MATERIAL BY CENTRIFUGAL FORCE FROM THE PERPHERAL WALL OF A RAPIDLY ROTATING BODY HAVING A PLURALITY OF ROWS OF ORIFICES THEREIN THROUGH WHICH THE VISCOUS MATERIAL ISSUES IN FILAMENTARY FORM, DIRECTING HOT COMBUSTION GASES INTO THE ATMOSPHERE TRANSVERSELY TO PLANES OF EMISSION OF THE FIBERS IN CONTACT WITH THE PERIPHERAL WALL ALONG THE ENTIRE HEIGHT THEREOF FROM THE TOPMOST TO THE LOWERMOST ROW OF ORIFICES, TO ENTRAIN THEREIN THE FIBERS ISSUING FROM ALL THE ROWS OF ORIFICES, AND INTERMIXING COMBUSTIBLE MATERIAL WITH SAID COMBUSTION GASES BEFORE SAID GASES ENTER THE ATMOSPHERE, SAID COMBUSTIBLE MATERIAL ADAPTED TO TRAVEL WITH SAID GASES PAST SAID PERIPHERAL WALL AND TO BURN IN THE COURSE OF SUCH TRAVEL TO MAINTAIN THE TEMPERATURE OF SAID GASES SUBSTANTIALLY CONSTANT ALONG THE ENTIRE HEIGHT OF SAID PERIPHERAL WALL.

Claim 2

THE METHOD OF MANUFACTURING FIBERS FROM HEATED VISCOUS THERMOPLASTIC MATERIAL, WHICH COMPRISES PROJECTING THE HEATED VISCOUS MATERIAL BY CENTRIFUGAL FORCE FROM THE PERPHERAL WALL OF A RAPIDLY ROTATING BODY HAVING A PLURALITY OF ROWS OF ORIFICES THEREIN THROUGH WHICH THE VISCOUS MATERIAL ISSUES IN FILAMENTARY FORM, DIRECTING HOT COMBUSTION GASES INTO THE ATMOSPHERE TRANSVERSELY TO PLANES OF EMISSION OF THE FIBERS IN CONTACT WITH THE PERIPHERAL WALL ALONG THE ENTIRE HEIGHT THEREOF FROM THE TOPMOST TO THE LOWERMOST ROW OF ORIFICES, TO ENTRAIN THEREIN THE FIBERS ISSUING FROM ALL THE ROWS OF ORIFICES, AND INTERMIXING COMBUSTIBLE MATERIAL WITH SAID COMBUSTION GASES BEFORE SAID GASES ENTER THE ATMOSPHERE, SAID COMBUSTIBLE MATERIAL ADAPTED TO TRAVEL WITH SAID GASES PAST SAID PERIPHERAL WALL AND TO BURN IN THE COURSE OF SUCH TRAVEL TO MAINTAIN THE TEMPERATURE OF SAID GASES SUBSTANTIALLY CONSTANT ALONG THE ENTIRE HEIGHT OF SAID PERIPHERAL WALL.

Claim 3

AN APPARATUS FOR PRODUCING FIBERS FROM THERMOPLASTIC MATERIAL COMPRISING A CENTRIFUGE HAVING A PERIPHERAL WALL OPROVIDED WITH A PLURALITY OF ROWS OF ORIFICES FOR DISCHARGING THE MATERIAL THERETHROUGH BY CENTRIFUGAL FORCE, A COMBUSTION CHAMBER ADJACENT TO AND SURROUNDING SAID PERIPHERAL WALL, SAID COMBUSTION CHAMBER HAVING MEANS FOR SUPPLYING THERETO A COMBUSTIBLE MIXTURE AND PROVIDED WITH AN ANNULAR OUTLET OPENING LOCATED IN THE IMMEDIATE VICINITY OF THE TOPMOST ROW OF ORIFICES FOR DIRECTING HOT COMBUSTION GASES INTO CONTACT WITH THE PERIPHERAL WALL, ALONG THE ENTIRE HEIGHT OF SAID WALL, AND SEPARATE MEANS CONNECTED TO SAID COMBUSTION CHAMBER FOR FEEDING ADDITIONAL COMBUSTIBLE MATERIAL THEREINTO FOR INTERMIXTURE WITH SAID HOT COMBUSTION GASES BEFORE SAID GASES LEAVE THE OUTLET OPENING OF SAID COMBUSTION CHAMBER TO FORM COMBUSTIBLE PARTICLES ADAPTED TO TRAVEL WITH SAID COMBUSTION BASES PAST SAID PERIPHERAL WALL FOR PROGRESSIVE COMBUSTION THEREALONG TO MAINTAIN THE TEMPERATURE OF SAID GASES SUBSTANTIALLY CONSTANT ALONG THE ENTIRE HEIGHT OF SAID PERIPHERAL WALL.

Claim 4

AN APPARATUS FOR PRODUCING FIBERS FROM THERMOPLASTIC MATERIAL COMPRISING A CENTRIFUGE HAVING A PERIPHERAL WALL OPROVIDED WITH A PLURALITY OF ROWS OF ORIFICES FOR DISCHARGING THE MATERIAL THERETHROUGH BY CENTRIFUGAL FORCE, A COMBUSTION CHAMBER ADJACENT TO AND SURROUNDING SAID PERIPHERAL WALL, SAID COMBUSTION CHAMBER HAVING MEANS FOR SUPPLYING THERETO A COMBUSTIBLE MIXTURE AND PROVIDED WITH AN ANNULAR OUTLET OPENING LOCATED IN THE IMMEDIATE VICINITY OF THE TOPMOST ROW OF ORIFICES FOR DIRECTING HOT COMBUSTION GASES INTO CONTACT WITH THE PERIPHERAL WALL, ALONG THE ENTIRE HEIGHT OF SAID WALL, AND SEPARATE MEANS CONNECTED TO SAID COMBUSTION CHAMBER FOR FEEDING ADDITIONAL COMBUSTIBLE MATERIAL THEREINTO FOR INTERMIXTURE WITH SAID HOT COMBUSTION GASES BEFORE SAID GASES LEAVE THE OUTLET OPENING OF SAID COMBUSTION CHAMBER TO FORM COMBUSTIBLE PARTICLES ADAPTED TO TRAVEL WITH SAID COMBUSTION BASES PAST SAID PERIPHERAL WALL FOR PROGRESSIVE COMBUSTION THEREALONG TO MAINTAIN THE TEMPERATURE OF SAID GASES SUBSTANTIALLY CONSTANT ALONG THE ENTIRE HEIGHT OF SAID PERIPHERAL WALL.