Method of manufacturing sections and rods of glass fibre-reinforced plastic

Claim 1

A METHOD FOR MANUFACTURING RODS AND SECTIONS OF GLASS FIBER-REINFORCE PLASTIC COMPRISING CONTINUOUSLY MOVING GLASS FIBERS IN THE FORM OF AN ELONGATED ASSEMBLY FROM A SUPPLY THROUGH A BATH OF A LIQUID LOW PRESSURELOW TEMPERATURE THERMOSETTING PLASTIC FOR IMPREGNATING THE ASSEMBLY OF GLASS FIBERS WITH LIQUID PLASTIC, DRAWING THE IMPREGNATED GLASS FIBERS WITH THE PLASTIC ADHERING THERETO DIRECTLY FROM SAID BATH INTO A MOLDING TUBE OF THE DESIRE CROSS-SECTION CONFIGURATION TO COMPLETELY FILL THE MOLDING TUBE, MOVING THE GLASS FIBER AND PLASTIC MATERIAL FORWARD WITHIN SAID MOLDING TUBE, APPLYING HEAT EXTERNALLY OF THE INITIAL PART OF THE TUBE FOR HEATING THE GLASS FIBER AND PLASTIC MATERIAL DURING THE TRAVEL THEREOF THROUGH THE SAID INITIAL PART OF THE MOLDING TUBE UP TO A POINT WHERE THE PLASTIC IS ABOUT TO GEL, APPLYING A COOLING MEDIUM TO THE EXTERNAL PORTION OF THE REMAINING LENGTH OF THE TUBE FOR COOLING THE EXTERIOR OF THE GLASS FIBER AND PLASTIC MATERIAL DURING THE TRAVEL THEREOF THROUGH THE REMAINING LENGTH OF THE TUBE FOR PREVENTING THE OUTER LAYER OF THE PLASTIC FROM GELLING ADJACENT THE INNER WALL OF THE TUBE WHILE THE INTERIOR OF THE TUBE CONTINUES TO GEL AND PASSES INTO A CURED STATE, DRAWING THE GLASS FIBER AND PLASTIC MATERIAL AS A CONTINUOUS STRAND OUT OF THE TUBE, HEATING THE STRAND AS IT EMERGES FROM THE TUBE FOR CURING SAID OUTER LAYER AND TO FINISH THE CURING OF THE PLASTIC THOUGHOUT THE ENTIRE CROSS SECTION OF THE STRAND AND FINALLY CUTTING SAID STRAND INTO DESIRED LENGTHS.

Claim 2

A METHOD FOR MANUFACTURING RODS AND SECTIONS OF GLASS FIBER-REINFORCE PLASTIC COMPRISING CONTINUOUSLY MOVING GLASS FIBERS IN THE FORM OF AN ELONGATED ASSEMBLY FROM A SUPPLY THROUGH A BATH OF A LIQUID LOW PRESSURELOW TEMPERATURE THERMOSETTING PLASTIC FOR IMPREGNATING THE ASSEMBLY OF GLASS FIBERS WITH LIQUID PLASTIC, DRAWING THE IMPREGNATED GLASS FIBERS WITH THE PLASTIC ADHERING THERETO DIRECTLY FROM SAID BATH INTO A MOLDING TUBE OF THE DESIRE CROSS-SECTION CONFIGURATION TO COMPLETELY FILL THE MOLDING TUBE, MOVING THE GLASS FIBER AND PLASTIC MATERIAL FORWARD WITHIN SAID MOLDING TUBE, APPLYING HEAT EXTERNALLY OF THE INITIAL PART OF THE TUBE FOR HEATING THE GLASS FIBER AND PLASTIC MATERIAL DURING THE TRAVEL THEREOF THROUGH THE SAID INITIAL PART OF THE MOLDING TUBE UP TO A POINT WHERE THE PLASTIC IS ABOUT TO GEL, APPLYING A COOLING MEDIUM TO THE EXTERNAL PORTION OF THE REMAINING LENGTH OF THE TUBE FOR COOLING THE EXTERIOR OF THE GLASS FIBER AND PLASTIC MATERIAL DURING THE TRAVEL THEREOF THROUGH THE REMAINING LENGTH OF THE TUBE FOR PREVENTING THE OUTER LAYER OF THE PLASTIC FROM GELLING ADJACENT THE INNER WALL OF THE TUBE WHILE THE INTERIOR OF THE TUBE CONTINUES TO GEL AND PASSES INTO A CURED STATE, DRAWING THE GLASS FIBER AND PLASTIC MATERIAL AS A CONTINUOUS STRAND OUT OF THE TUBE, HEATING THE STRAND AS IT EMERGES FROM THE TUBE FOR CURING SAID OUTER LAYER AND TO FINISH THE CURING OF THE PLASTIC THOUGHOUT THE ENTIRE CROSS SECTION OF THE STRAND AND FINALLY CUTTING SAID STRAND INTO DESIRED LENGTHS.