Abstract: A meter cable sheath structure for accommodating a flexible rotary shaft suitably used for vehicle indicators is made in such a manner that a high tension resistible fiber impregnated with adhesive resin is braided around an external surface of an inner sheath having a hollow space for storing the flexible rotary shaft and further an external covering layer firmly adhered to the high tension fiber is formed by means of the adhesive resin.

Abstract: An illumination panel, which comprises an optical fiber sheet formed by arranging a plurality of optical fibers having a core-sheath structure, which has one end optically connected to a light source and a light-leaking portion on at least one surface thereof, a surface panel arranged on the front surface side of the optical fiber sheet, and a reflecting layer arranged on the back surface side of the optical fiber sheet, wherein the light-leaking portion is formed of a plurality of flaws extending to the core of the optical fiber from the sheath thereof, the light-leaking width of the light-leaking portion increases toward the side far from the light source from the side near to the light source, the presence density of the flaws increases toward the side far from the light source from the side near to the light source, and the depth of the flaws increases toward the side far from the light source from the side near to the light source, whereby the entire illumination surface is uniformly illuminated.

Abstract: The invention provides an end structure for at least one optical fiber ribbon wherein the same-side ends of the optical fiber ribbons are bundled together and tightly fitted in a metallic sleeve member so that coating layers of the optical fiber ribbons may be on the inner surface of the metallic sleeve member.

Abstract: The invention provides a working equipment for roughening the side of optical fiber having a hot stamper, a sheet having rough surface to be transferred, a cushion, and a cushion-mounted plate having a portion formed in stepwise or continuously curved or sloped form.

Abstract: In a data communication system, plural telephone lines are divided into a registered group and a non-registered group. Authorized remote terminals are respectively associated with the telephone lines of the registered group. Each remote terminal transmits a password when it accesses to the central station from the associated, registered telephone line. The password is appended with an extra code when the access is made from a non-registered telephone line. The registered telephone numbers and the passwords of the associated remote terminals are stored in a memory. A coincidence between the password transmitted from a remote terminal and a stored password is detected to proceed with the detection of whether the transmitted password is appended with an extra code or not. In the absence of the extra code, the central station calls back the remote terminal using a telephone number stored in the memory in association with the transmitted password.

Abstract: A method for the fabrication of an optical fiber sheet, which comprises supplying a number of optical fibers, arranging them in a plane so that they do not intersect one another, holding the optical fibers by a tool having a clearance slightly larger than the size of the fibers, constringing the fibers in the held portion in the lateral direction to bring them close to one another so that the fibers are contacted with one another, and applying an adhesive to the contacted portion of the fibers and solidifying the adhesive to fix the fibers in the sheet-like form, an apparatus for carrying out the method and an optical fiber sheet prepared according to the method.

Abstract: A slub yarn, in which a sheath component is wound around a core component to form a plurality of slub portions along the axis of the yarn, which structure is obtained by simultaneously false-twist texturing the core and sheath components. The slub yarn has a feature that the slub portion includes a multilayered winding structure of seven or more layers of the sheath component wound around the core component. A method for producing the slub yarn includes a step of overfeeding a sheath component to a core component in the direction substantially perpendicular to a passage of the core component in a twisting zone of a false-twist texturing machine while the sheath component is guided by a guide repeatedly traversed along a passage of the core component, a distance between the guide and the passage of the core component being kept in a range not shorter than 10 cm. An apparatus for randomly traversing the sheath component along the core component during the false-twist texturing process is also provided.

Abstract: A luminant pointer for use in a meter is disclosed, which comprises a finger portion having a trapezoidal sectional shape with the transverse width of its upper face being selected to be longer than that of its lower face, and a layer of color paint provided on the lower face of the finger portion. The entire upper face of the finger portion of the pointer having such a construction can thus glow with the color of the paint in spite of the fact that the color paint layer is provided merely on the lower face having a considerably smaller area than that of the upper face of the finger portion of the pointer. Therefore, the amount of the paint required for the luminant indication purpose is decreased to reduce the rate of absorption of light by the paint, thereby obviating the tendency of sharp reductions in the intensity of light advancing from the radially inner end toward the radially outer end of the finger portion of the pointer on the meter dial.