Extruding radiused plastic articles with an extruding machine terminating
in die defining a path of travel between upstream and downstream ends.
The die has an outlet opening extending longitudinally in the direction
of the path of travel, the opening oriented so a polymeric material is
extruded therefrom in a direction approximately perpendicular to the path
of travel through the die. Oppositely rotating rollers of tapered
diameters are disposed side by side to receive the extrudate
therebetween, the rollers arranged so their longitudinal axes intersect
and their smaller diameters are oriented towards the downstream end of
the die. Extrudate passing through the opening is characterized by a
higher flow rate proximate the upstream end thereof to thereby form a
radiused extrusion. The rollers draw the extrudate from the die outlet
opening without significantly altering the radiused shape of the fluid
plastic material.