Abstract: Disclosed are metallic wire with high surface quality and low-cost suitable for use as material for grip rings and a producing method and apparatus thereof. Metallic wire 34 deformed in a coil shape is passed through a shape correction unit 14 so as to straighten it. Furthermore, while upper and lower pressing rollers 19, 20, 26, 27 prevent the metallic wire 34 from warping upwardly and downwardly, wedge-shaped grooves are continuously formed on the metallic wire 34 by means of a first cutting roller 21 and a second cutting roller 23.

Abstract: An Endoscope having at least one control cable wherein a helically wound cylindrical spring is passed over one end of the cable and is crimped into deforming contact against the cable. Melted solder is flowed over and through the spring to wet the spring and the cable surfaces. The solder is allowed to solidify thus creating a strong joint between the cable and the spring.

Abstract: A lens suitable for implantation in the eye is provided with iris clips formed of plastic filaments each having at least one of its ends fastened to the lens. Ends of the clips to be fastened are ferruled and beaded for secure and permanent affixation.

Abstract: A lens suitable for implantation in the eye is provided with iris clips formed of plastic filaments each having at least one of its ends fastened to the lens. Ends of the clips to be fastened are ferruled for secure and permanent affixation.

Abstract: An improved tubular ferrule which may be employed in a wire connector or the like comprises a helical coil of closely wound turns of generally elongate tubular form with each of the turns of the coil being bonded to an adjacent turn to form a crimpable tubular structure having an undulating interior surface and readily adaptable for use as an electrical connector or the like. The individual turns of the coil may be bonded to one another either by the selective application of a bonding material to the coil or by pre-coating the wire with a preferably heat responsive fusible material and subjecting the coil to a heating operation to fuse the turns together. Wire having a circular, rectangular, or other suitable cross section may be employed and selectively oriented to provide a variety of selective interior and exterior surface configurations. The wire may be pre-worked, prior to winding, to provide sharp protrusions thereon to enhance the engagement between the ferrule and external parts joined thereto.