Abstract: An optical fiber cutting device and method, and optical fiber cutting blade member in which excellent workability is obtained by a simple configuration, and a cost reduction can be attained are provided.

Abstract: In a method for producing an optical fiber having a resin coating, an optical fiber which is drawn from a preform for an optical fiber heated and melt by a heating source can be effectively cooled before it is coated with a resin by cooling the drawn fiber by cooling gas in such a manner that, in a first plane which is perpendicular to an axis of the drawn fiber or a first conical surface which has a cone point on the axis of the drawn fiber, the cooling gas is blown against the fiber from one direction on said first plane or said first cone surface, and in a second plane which is perpendicular to the axis of the drawn fiber and apart from said first plane or a second conical surface which has a cone point on the axis of the drawn fiber and is apart from said first conical surface, the cooling gas is blown against the fiber from other direction on said second plane or said second conical surface so that a sum of components of all vectors of the cooling gas in x and y dimensions in the three-dimensional space

Abstract: An apparatus for molding and curing a resin matrix composite material under pressure and heat by a use of a bag provided in an autoclave for covering the material and applying the pressure to the material.

Abstract: An optical fiber characteristic measuring method and apparatus are disclosed whereby measurements of a plurality of different parameters of an optical fiber can be carried out automatically and successively with a minimum of operator time required. A stage is provided which is movable along a straight line, and a setting station is arranged in the direction of movement of the stage. A plurality of measurement stations are provided having first holders for holding fibers provided on the side of the measuring devices and arranged along a straight line extending parallel to the direction of movement of the stage with a predetermined distance therebetween. The stage is provided with a plurality of second holders for holding the optical fibers to be measured, with the second holders being arranged along a straight line extending parallel to the direction of arrangement of the first holders with the same distance as the predetermined distance therebetween.

Abstract: An accumulator wherein the peripheral speeds of separate, accumulating guide roller assemblies are caused by respective independent mechanical arrangements to coincide with the take-up speeds of first and second take-up devices. Using this arrangement, the speed of the optical fiber being accumulated is always equal to the peripheral speed of the accumulating guide rollers so that there is no instantaneous tension change that would otherwise result from a backlash of interconnecting gears.

Abstract: A tape winding apparatus including a rotatable spindle having an axial bore through which a core on which a tape is to be wound to produce a cable is advanced, and a reel carrying a roll of tape supported on the spindle for rotation about the core. A takeup roller is provided between the reel and the core for defining at least two areas therebetween so that the tension of the tape in one of those areas which is closer to the reel may be higher than in the other area. A wind barrier is provided between those areas for preventing transfer of a wind created by the rotation of the reel from the one area to the other area. A tension controller is provided between the takeup roller and the core for controlling the rotating speed of the takeup roller to maintain the tape therebetween at a satisfactorily low tension which ensures proper winding of the tape on the core.

Abstract: A wire-twisting machine for twisting individual wire-like structures into a cable, having a plurality of bobbins around which are wound the wire-like substance to be twisted, the bobbins being mounted on individual cradles which are supported at either end by disks secured to a common spindle, comprising: a drive mechanism having prime movers which are external to the bobbin-cradle assembly for controlling the speed of feeding the wire-like structure from its respective bobbin, thus resulting in constant wire-like structure tension, and another drive mechanism for controlling cradle rotation for fixing or adjusting the amount of twisting-back in said cable.

Abstract: An apparatus for stranding optical fiber cores while slackening the same in which optical fiber cores are pushed into core storing spaces which are to be twisted or twisted core storing spaces. A core delivering system has a passage for passing the optical fiber cores therethrough and a gas which flows from the back position of said passage towards the front position thereof functions to send out the optical fiber cores at the inlet side of said core storing spaces. The tensile forces of the optical fiber cores at the inlet sides of the core delivering system are decreased by a winding drum mechanism.

Abstract: A device for transmitting signals or energy between a reel wound multi-core or multi-conductor cable and a stationary terminal unit without the use of a sliding connector. Dummy bobbins are provided coaxially with and rotatable with the winding reel with individual strands or conductors extending onto the winding surface thereof and wound thereupon. As the main cable is played out, the individual strands or wires are unwound from the dummy bobbins and then taken up by storage devices. In one embodiment, the storage devices are a second set of bobbins while in another embodiment the storage devices are constituted by stationary bundle receiving devices with pinch rollers provided for urging the individual strands or wires into the bundle receiving devices.

Abstract: A device for ensuring the smooth shifting of a strand from a full reel to an empty reel in a strand winding machine including improvements in the snaggers provided on the wheels which are rotating with the two associated reels arranged parallel to each other. The snaggers are provided on each wheel and are supported by a shaft parallel to the central axis of revolution of the wheel such that the snaggers are rotatable about the shaft. The centroids of the snaggers are displaced from the pivot of the snagger itself, that is, positioned on that side of the pivot which is opposite from the pointed end of the snagger. Thus, the snagger can securely grip and hold the strand during rotation of the wheel and can release the strand when the wheel comes to rest.