Abstract: To provide a traverse-motion mechanism capable of easing the threading operation by reducing the heights of the yarn-separating fulcrum and the godet roller disposed upstream of a yarn-traversing fulcrum, of reducing times required for the manufacturing and assembling operation by simplifying the structure due to the reduction of the overall machine height, of minimizing the rise of selvage and ribbon wind generated in a package, and of readily adjusting the position of yarn turning point. A traversing unit 6-1 disposed at one end of the traverse-motion mechanism is offset from a regular position toward another traversing unit 6-4 so that a straight line connecting the opposite traverse ends (A) and (B) in the traversing unit 6-1 with each other is not parallel to an axis of a touch roller 7.

Abstract: A heat-shrinkable polystyrene tube made of a composition comprising, as main components, a block copolymer having styrene-type hydrocarbon blocks and conjugated diene-type hydrocarbon blocks, and a polymer containing a styrene-type hydrocarbon, wherein the conjugated diene-type blocks in the block copolymer constitute from 5 to 40 wt % of the entire composition.

Abstract: In a recording sheet conveying device comprising: a dielectric sheet which moves at a predetermined speed while electrostatically retaining a recording sheet on the outer surface thereof; a charger positioned on the side of the inner surface of the dielectric sheet, to induce electrostatic attraction forces between the dielectric sheet and the recording sheet; and a deflector roll having an electrically conductive layer as an outer surface thereof, the deflector roll being confronted with the charger and adapted to push the recording sheet against the dielectric sheet, the number of electric charges provided by the charger is so adjusted that electrostatic attraction forces acting on the rear end portion of the recording sheet are weaker than those acting on the front end portion of the recording sheet, whereby the recording sheet is prevented from being wrinkled when electrostatically retained on the dielectric sheet.

Abstract: In an ink-jet recording apparatus, a replacement of a head carriage can be readily performed within a short time, and when the head cartridge is mounted on the head carriage, the mounting position is fixed. A head cartridge K arranged by a head supporting member F and an ink-jet recording head H includes an unloosen preventing member 55c. The head carriage C has a depression means 37 for depressing along a predetermined direction the head cartridge K under such a condition that the head cartridge is mounted on a head supporting member mounting portion 32, and also a loosen preventing member 35 engaged with the unloosen preventing member 55c when being depressed.

Abstract: A yarn winding device which comprises a yarn feeding unit for feeding a yarn at a predetermined yarn speed, an absorbing unit for absorbing a variation of a yarn speed by storing the yarn therein, a tensioning unit for applying a predetermined tension to a yarn, and a yarn winding unit for winding a yarn on a bobbin while traversing the yarn. A yarn detecting unit is provided for detecting whether or not a yarn is in front thereof in the absorbing unit and a control unit is also provided for controlling yarn winding speed of the yarn winding unit by increasing and decreasing that speed in accordance witha signal from the yarn detecting unit indicating a yarn existence or non-existence. After all, this yarn winding device makes a cone cheese package or a ribbonless package under constant tension by using an absorbing means between a feeding unit and a winding package.

Abstract: In a process for producing an aromatic polyester fiber by heat-treating a fiber obtained by melt-spinning an aromatic polyester exhibiting anisotropy in its molten state, an aromatic polyester fiber having high strength and high modulus of elasticity can be produced with suppressed fusion between single filaments during the heat treatment by (a) subjecting the fiber obtained by melt spinning to heat treatment in an organic liquid heating medium or (b) adhering to the fiber obtained by melt spinning at least one member selected from the group consisting of suspensions having a concentration of 0.05 to 20% by weight of organic polymer powders having a melting point or a softening temperature higher than the heat treatment temperature, and suspensions having a concentration of 0.1 to 20% by weight of barium sulfate powder or barium titanate powder, and then subjecting the resulting fiber to heat treatment.