Pile weatherstripping having an integral fin is made by wrapping a fin
material around a traveling mandrel or band, winding pile material around
the fin material and the band, attaching a pair of backer elements to the
pile material along opposite edges of the band, and then cutting the fin
material and the pile material to produce simultaneously two pile
weatherstrips. Stationary and traveling elements may be employed to
facilitate cutting and produce fin above the pile weatherstrips.