Abstract: A positioning system is provided in which command and feedback signals are processed to develop an analog error signal for application to a servo drive to position a controlled element. The command signals are in the form of pulses each of which corresponds to a certain incremental distance of movement. The feedback signals are developed from phase shifts of a low frequency resolver signal, such phase shifts being proportional to movement of the element. Such feedback signals are applied to a resolver digitizer circuit which develops a train of resolver pulses in response to the phase shift represented by each feedback signal. Each such resolver pulse corresponds to the same incremental distance of movement as a command pulse and both the resolver pulses and the command pulses are applied to a comparator and error signal circuit in which any cumulative error in either direction is stored as a digital number and is converted to an analog error signal of the proper polarity.

Abstract: A method and apparatus for producing fishing lures incorporating hook hangers which utilize a bore formed in the lure body as part of the connection mechanism. Injection molding techniques are utilized to fill cavity molds having removable inserts therein.

Abstract: A method and apparatus for producing fishing lures incorporating hook hangers which utilize a bore formed in the lure body as part of the connection mechanism. Injection molding techniques are utilized to fill cavity molds having removable inserts therein.

Abstract: A fishing system is presented wherein a fishing lure may be made to operate at predetermined optimum depths as a function of changes in the effective density of the fishing lure assembly which is accomplished by the selective use of hooks, having predetermined weights, attached to the lure by hook hangers which utilize a bore formed in the lower body as part of the connection mechanism.

Abstract: A method and apparatus for producing fishing lures incorporating hook hangers which utilize a bore formed in the lure body as part of the connection mechanism. Injection molding techniques are utilized to fill cavity molds having removable inserts therein.

Abstract: A connector for securing an object having a loop or eyelet affixed thereto is provided by an open loop of rigid, spring wire or similar material which is secured to a body so that one leg of the opened loop enters, and essentially traverses a bore within the body.

Abstract: Fly fishing apparatus including a double-ended special connector having horizontal and vertical eyes at each end between the fishing line and a leader connected to a fishing hook also having a horizontal and vertical eye whereby the cutting of lines and tieing of knots is eliminated. In modifications the upper end of the double-ended special connector is provided with a horizontal eye only for receiving the knob of a plastic fishing line resulting from the application of heat or for receiving the fishing line with a knot therein.