Abstract: A spring-loaded bobbin for use in tying fly fishing lures has a simple frame carrying a support mechanism having a centered bearing by which an off-the-shelf spool of tying thread is rotatably mounted. The frame carries a thread guide tube that is centered on and extends at rightangles to the spool axis, to receive and deliver the thread. The spool support mechanism includes a coil spring that is tensioned upon the withdrawal of thread from off the spool, so that, on release of the thread by the user, the spool is reverse wound by the tensioned spring, to take up the slack in the thread.

Abstract: An improved method and apparatus for the production of man-made flies for use in fly fishing is disclosed. The preferred embodiment includes a spring for the storage of energy as thread is unwound from an industry standard spool. Means for easily changing the spool as well as rewinding any slack thread back onto the spool is provided.