Abstract: A fabric for a printed circuit-board characterized by that it is composed of one or more fiber(s) selected from the group consisting of polyether ether ketone fiber, polyetherimide fiber and polysulphone fiber, and glass fiber, and a printed circuit-board employing the fabric as its base material.

Abstract: Disclosed is a woven fabric used for production of fiber-reinforced thermoplastic resin laminates wherein each or warps and wefts which constitute the fabric comprises at least one kind of thermoplastic resin yarns and at least one kind of reinforcing yarns and the reinforcing yarns of the warps and wefts as such constitute a weave. The weave constituted of only the reinforcing yarns is preferably a plain weave. The fiber-reinforced thermoplastic resin laminates made by compression molding a laminate of said woven fabrics are high in strength.

Abstract: A high pressure fluid processing device is disclosed including a frame positioned across a passage for conveying workpieces, a header having a plurality of nozzles thereon arranged at intervals (P), a driving mechanism for moving the nozzles on circles with the radius (e), and the radius (e) and the nozzle interval (P) satisfying the equation:e.gtoreq.P/2; .

Abstract: A high-pressure fluid processing device is provided, which is improved for application of impinging fluid jets to process an object, such as a woven fabric, to increase uniformity of application and processing of the object. Particularly, the present invention is useful for processing woven fabrics having small thicknesses and lower densities by compensation for overlapping regions that occur during high-pressure fluid processing. The high-pressure fluid processing device includes a header means that is translationally rotationally driven from a frame so as to move a plurality of nozzles thereon in circles to impinged the object conveyed thereunder with high-pressure fluid jets. Moreover, the device includes masking members that are positioned between the nozzles and the object to be processed so as to block at least some of the jet flow of fluid to increase uniformity of processing and to avoid unwanted bunching or shifting of fibers in a processed fabric.

Abstract: In a substrate of a printed circuit, a metal foil is mounted onto at least one of the outermost surfaces of a laminate made of a plurality of glass fiber woven fabrics impregnated with synthetic resin, and heated and pressed. Warps and wefts of the glass fiber fabrics filamentated their filaments. The synthetic resin enters gaps among the opening filaments so that the vertically laminated glass fiber fabrics including the opening fibers are integrally jointed with each other. Warps and wefts of the glass fiber fabrics may have their surfaces made fuzzy so that the synthetic resin enters fuzzy filaments. Furthermore, the thus produced substrate may be used as a multilayer printed circuit substrate.

Abstract: A glass fiber strand winding apparatus having a primary strand winding portion and a preliminary strand winding portion comprises a flanged portion the diameter of which is greater than that of the preliminary winding portion and at least one groove axially provided in the preliminary winding portion and the flanged portion from the inner end of the preliminary winding portion.

Abstract: Apparatus for reciprocating a yarn guide to wind yarn on a bobbin including a rotating scroll cam provided with an endless helical cam groove and a second cam groove in superposed relationship with the endless cam groove and having a greater lead angle than the endless cam groove over a predetermined distance adjacent each turning point. The yarn guide is provided with an elongate ship-shaped cam follower slidably fitted into the endless cam groove and pivotable with respect to the yarn guide and a cylindrical cam follower slidably fitted into the second cam groove. The width of the portion of the endless cam groove adjacent each turning point is gradually increased toward the turning point so as to permit the elongate cam follower to smoothly reverse its direction when it passes the turning point.

Abstract: An apparatus for winding a strand of glass fibers drawn from a bushing, having a rotatable turret and at least two winding collets mounted on the turret and adapted to be brought into a winding position one by one upon rotation of the turret. Each winding collet is provided at its free end with a waste strand winding portion having a frusto-conical strand guide surface coaxially extending with the collet and converged towards its free end, an annular strand stopping wall radially outwardly extending from the free end of the frusto-conical guide surface, at least one crescent-shaped wall surface extending radially inwardly from a portion of the outer periphery at the free end of the guide surface and formed thereon with a plurality of parallel grooves extending at a right angle to the diameter of the guide surface, and a crescent-shaped flat portion extending from a portion of the outer periphery of the stopping wall in confronting spaced relationship with the crescent-shaped wall surface.

Abstract: A traverse motion used in combination with a device for winding a continous elongate element such as a strand consisting of a large number of glass filaments drawn through a bushing with a large number of nozzles. In the traverse motion of the type including a scroll cam with an endless cam groove consisting of at least one pair of right- and left-hand grooves joined at each end and a strand guide which has a cam follower fitted in the endless cam groove of the scroll cam and is adapted to reciprocate along a straight path in parallel with the axis of the shaft of the scroll cam when the latter is rotated, the lead angle of the endless cam groove is increased adjacent to its ends or adjacent to each returning point of the cam follower so that the guide is increased in velocity adjacent to each returning point.