Film quenching apparatus

Claim 1

APPARATUS FOR USE IN THE MANUFACTURE OF FILMS INCLUDING A TANK HAVING A BOTTOM WALL AND UPRIGHT SIDE AND END WALLS, A PAIR OF SPACED UPRIGHT, PERFORATED PARTITIONS DISPOSED ADJACENT TO EACH OF SAID END WALLS AND EXTENDING BETWEEN THE SIDE WALLS THEREOF, THE LOWER ENDS OF ADJACENT PARTITIONS OF SAID PAIRS OF PARTITIONS TERMINATING ABOVE THE BOTTOM WALL OF SAID TANK, A DIVIDER PLATE EXTENDING BETWEEN THE LOWER ENDS OF SAID ADJACENT PARTITIONS AND THE SIDE WALLS OF SAID TANK, MEANS FOR DELIVERING A COOLING LIQUID THROUGH THE PERFORATIONS OF ONE PAIR OF SAID PARTITIONS, MEANS FOR WITHDRAWING COOLING LIQUID THROUGH THE PERFORATIONS OF THE OTHER OF SAID PAIR OF PARTITIONS, MENS FOR EXTRUDING A SHEET OF MOLTEN FILMFORMING MATERIAL INTO THE COOLING LIQUID IN-BETWEEN THE PARTITIONS OF SAID OTHER PAIR OF PARTITIONS, MEANS FOR WITHDRAWING THE COOLED SHEET OF FILM-FORMING MATERIAL FROM THE COOLING LIQUID BETWEEN THE PARTITION OF SAID ONE PAIR OF PARTITIONS, AND MEANS FOR DIRECTING THE COOLED SHEET OF FILM-FORMING MATERIAL BETWEEN THE BOTTOM WALL OF SAID TANK AND SAID DIVIDER AS THE SHEET IS ADVANCED IN A DIRECTION COUNTER TO THE FLOW OF COOLING LIQUID.