Importance

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Abstract

An apparatus for automatically dispensing and taking-up a flexible communications cable such as an optical fiber includes a motor-driven reel which is mounted on a movable member, such as a vehicle. The fiber passes through a pivotably mounted tension control arm, whose angular position is detected to control the motor. Depending on the position of the tension control arm, the reel may be rotated in one direction to relieve fiber tension, it may be rotated in the opposite direction to take-up slack, or it may remain quiescent. The reel is mounted on a pipe which channels the inner end of the fiber to a rotary optical coupler, thereby permitting the fiber to be used for optical communication as the vehicle moves. The level-winding mechanism similar to that in a fishing reel may be used to control the windings on the reel, and a pivotably mounted plate may be pressed against the upper layer of fiber on the reel in order to keep it from unraveling.

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First Claim