Apparatus for heating yarn
    2.
    发明授权
    Apparatus for heating yarn 失效
    纱线加热装置

    公开(公告)号:US4880961A

    公开(公告)日:1989-11-14

    申请号:US162965

    申请日:1988-03-02

    Inventor: James E. Duncan

    CPC classification number: D02J13/005 D02J1/22

    Abstract: A yarn heating element wherein fixed elongated core having a heater therein serves as a support for a sleeve rotatably mounted to and telescoped over the core. The space between the core and sleeve can be varied along their lengths for controlling heat radiated from the core to the shell to control the temperature profile along the length of the shell. Varying the winding density of the heater can serve the same purpose.

    Abstract translation: 一种纱线加热元件,其中具有加热器的固定细长芯体用作可旋转地安装到芯上并套叠在芯上的套筒的支撑件。 芯和套筒之间的空间可以沿其长度变化,以控制从芯部到壳体辐射的热量,以控制沿壳体长度的温度分布。 改变加热器的卷绕密度可以达到相同的目的。

    Process of drawing yarn using an oscillating draw assist element
    4.
    发明授权
    Process of drawing yarn using an oscillating draw assist element 失效
    使用振荡拉伸辅助元件拉伸纱线的过程

    公开(公告)号:US5183620A

    公开(公告)日:1993-02-02

    申请号:US635917

    申请日:1990-12-28

    CPC classification number: D02J1/225 D02J1/22 Y10S264/73

    Abstract: A process and apparatus for drawing polyamide yarn in which the yarn having a lubricating finish is drawn while being spirally advanced in frictional contact with the outer surface of a yarn draw assist element. In such process and apparatus, the outer surface of the draw assist element moves at a speed at least 100 times slower than the speed at which the yarn is advanced. From the draw assist element, the yarn directly advances to a roll initial contact location on a pair of space-apart heated rolls and spirally advances on the rolls through at least one wrap in contact with the outwardly-facing surfaces of the heated rolls. The distance that the yarn spirally advances longitudinally in the wrap can be said to define the wrap advance on the rolls. The roll initial contact location of the heated rolls is oscillated by moving the outer surface of the draw assist element in relation to the pair of heated rolls to oscillate the wrap on the rolls a distance which is at least equal to the wrap advance. The process and apparatus advantageously prevent the build-up of deposits on the heated rolls.

    Abstract translation: 一种用于拉伸聚酰胺纱线的方法和装置,其中具有润滑整理剂的纱线在与纱线牵引辅助元件的外表面摩擦接触的同时螺旋地前进地被拉伸。 在这种方法和装置中,牵引辅助元件的外表面以比纱线前进速度慢至少100倍的速度移动。 从牵引辅助元件中,纱线直接前进到一对间隔开的加热辊上的辊初始接触位置,并且通过与加热辊的向外表面接触的至少一个卷绕件在辊上螺旋地前进。 纱线在卷边中螺旋地纵向前进的距离可以说是限定卷筒上的卷绕。 通过相对于一对加热的辊移动牵引辅助元件的外表面来振动加热的辊的辊初始接触位置,以将卷绕在辊上的距离至少等于包裹前进。 该方法和装置有利地防止沉积物在加热的辊上的积聚。

    Door of adjustable height
    5.
    发明授权
    Door of adjustable height 失效
    可调节高度的门

    公开(公告)号:US4020595A

    公开(公告)日:1977-05-03

    申请号:US667475

    申请日:1976-03-17

    Inventor: James E. Duncan

    CPC classification number: E06B7/18

    Abstract: A flat, hollow, vertically elongated door panel has an open bottom. A movable piece is located inside the panel and can move up or down through the bottom. Horizontal bottom pieces are attached to the movable piece and both the bottom and movable pieces are spring-loaded downwardly.

    Abstract translation: 平坦的,中空的,垂直伸长的门板具有开放的底部。 可移动件位于面板内部,可以通过底部上下移动。 水平底部件连接到可动件上,底部和可动件都向下弹簧加载。

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