Filament preheat apparatus

Details Filament preheat apparatus Filament preheat apparatus

1988-02-12

1989-01-10

Simmons, David

Adhesive bonding and miscellaneous chemical manufacture

Surface bonding means and/or assembly means therefor

Longitudinally progressive helical winding means

156497, B65H 8100

Patent

active

047971720

ABSTRACT:
A filament and mandrel preheat apparatus is mountable to the payout assembly of a winding machine. The apparatus has heating tubes or electric torches that deliver a heated airflow of variable heat flux into a duct. The exit end of the duct is positioned near the filament and mandrel and preheats it during winding. The duct is rotatable so that the airflow can be directed away from the filament during either a pause or stoppage of winding.

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