Importance

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Abstract

A filament applicator includes a frame which defines a machine axis through which an elongate element may be guided at an application station at which filaments are to be applied to or introduce into the elongate element, such as an optical cable. A plurality of chambers are provided, each of which defines a chamber axis substantially parallel to the machine axis and mounted on the frame for rotation about the machine axis. Each chamber is substantially closed and has a panel at an axial end of the chamber which is movable between an open position for inserting and removing a wound package of filament material within the chamber and closed position for substantially sealing the chamber and preventing air turbulence within the chamber upon rotation about the machine axis. Each panel has an opening therein through which the filament material can be removed from the wound package. Each filament is guided from an associated opening in a door or panel of a chamber to the machine axis for winding about or introduction into the elongate element. By sealing the chambers during operation, the applicator speed can be significantly increased, above 500 rpm, while maintaining control over the relatively flimsy, lightweight and soft filaments, such as synthetic KEVLAR fibers.

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First Claim