Apparatus for production of strip stock from polyamides

Claim 1

EQUIPMENT FOR FORMING STRIP STOCK FROM SYNTHETIC LINEAR POLYAMIDES, COMPRISING A VESSEL FOR RECEIVING A LIQUID COOLANT, A PAIR OF FORMING ROLLS ARRANGED IN SIDE-BY-SIDE RELATION WITH THEIR AXES DISPOSED IN A COMMON HORIZONTAL PLANE TOWARD THE TOP OF SAID VESSEL AT LEAST IN LARGE PART ABOVE THE LEVEL OF THE COOLANT THEREIN, MECHANISM ABOVE THE FORMING ROLLS FOR FEEDING MOLTEN POLYAMIDE DOWNWARDLY INTO THE ENTRANCE NIP BETWEEN THE FORMING ROLLS, MEANS FOR COOLING THE FORMING ROLLS TO A TEMPERATURE BETWEEN 75* F. AND 375* F. TO PROVIDE FOR SUBSTANTIAL SOLIDIFICATION OF THE POLYAMIDE WHILE PASSING IN CONTACT WITH THE FORMING ROLLS, AND MECHANISM FOR DRAWING THE FORMED STRIP DOWNWARDLY FROM FORMING ROLLS THROUGH THE COOLANT IN SAID VESSEL INCLUDEING A FEEDING DEVICE ENGAGING THE FORMED STRIP TO DRAW IT FROM THE ROLLS UNDER TENSION, THE FEEDING DEVICE BEING HORIZONTALLY OFFSET FROM THE FORMING ROLLS AND BEING LOCATED ABOVE THE LEVEL OF THE COOLANT IN SAID VESSEL, AND A GUIDE LOCATED BETWEEN THE FEEDING DEVICE AND THE VERTICAL PLANE OF THE PASS BETWEEN THE FORMING ROLLS BUT OFFSET DOWNWARDLY FROM THE FORMING ROLLS AND FEEDING DEVICE TO A POSITION WELL BELOW THE LEVEL OF THE COOLANT IN SAID VESSEL AND ENGAGING THE UPPER SIDE OF THE FORMED STRIP INTERMEDIATE THE FORMING ROLLS AND THE FEEDING DEVICE TO ESTABLISH A RUN OF THE FORMED STRIP EXTENDING AROUND AN APPRECIABLE ARC OF ONE OF THE FORMING ROLLS AND THENCE DOWNWARDLY THROUGH THE COOLANT TO THE GUIDE DEVICE.