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    Apparatus for tensioning yarn
    1.
    发明授权
    Apparatus for tensioning yarn 失效
    用于张紧纱线的装置

    公开(公告)号：US3937417A

    公开(公告)日：1976-02-10

    申请号：US429055

    申请日：1973-12-28

    Applicant: Lloyd M. Guenther

    Inventor： Lloyd M. Guenther

    IPC: B65H59/10 ,  B65H59/20 ,  B65H59/24 ,  B65H59/26

    CPC classification number: B65H59/10 ,  B65H59/20 ,  B65H2701/31

    Abstract: Yarn tensioning apparatus particularly suitable for receiving essentially tensionless yarn and giving it a generally uniform output tension level includes friction surfaces across which the yarn is drawn to progressively raise the tension level and work out tangles. The tension surfaces are long, so that, in passing transversely over them, the yarn may take a variety of paths to accommodate the abrupt fluctuations associated with tangle release events. Near the output, a member having a friction nose at one end is pivoted at its opposite end and includes a curved intermediate portion that may swing down to contact a yarn engaging portion of a friction pin; the arrangement being such that an increase in yarn tension causes movement of the member relative to the pin in a direction to produce tension-reducing effects, and vice versa.

    Abstract translation: 特别适用于接收基本上不拉伸纱线并赋予其大致均匀的输出张力水平的纱线张紧装置包括摩擦表面，纱线被牵引到该摩擦表面以逐渐提高张力水平并产生缠结。 张力表面很长，使得横向穿过它们时，纱线可以采取各种路径来适应与缠结释放事件相关联的突然波动。 在输出附近，具有一端具有摩擦鼻的构件在其相对端枢转并且包括弯曲的中间部分，其可以向下摆动以接触摩擦销的纱线接合部分; 该布置使得纱线张力的增加导致构件相对于销的方向的移动，以产生减小张力的作用，反之亦然。

    Improvements in thermoplastic yarn rebound texturizing methods
    4.
    发明授权
    Improvements in thermoplastic yarn rebound texturizing methods 失效
    热塑性纱线回弹增强方法的改进

    公开(公告)号：US4160307A

    公开(公告)日：1979-07-10

    申请号：US742085

    申请日：1976-11-16

    Applicant: David Soutar, Jr. ,  Philip C. Feffer ,  Lloyd M. Guenther

    Inventor： David Soutar, Jr. ,  Philip C. Feffer ,  Lloyd M. Guenther

    IPC: D02G1/16

    CPC classification number: D02G1/168

    Abstract: Improvements in thermoplastic yarn rebound texturizing method are provided by advancing a plurality of continuous filament yarns at different speeds into a stream of heated fluid advancing longitudinally of the yarns, hurling the yarns toward a foraminous surface by means of the stream of fluid while passing at least part of the stream of fluid through the surface, impinging the advancing yarns on the foraminous surface with sufficient force to induce compression crimps in the filament of at least the faster fed yarn, instantaneously rebounding the yarns from the foraminous surface, and continuously controlling the actual compaction of the yarn as it moves away from the crimping zone. The rates of advancement of the yarns respective to the fluid stream are such that at least one yarn is introduced into the system at a rate at least twice the rate of the other.The result is a novel yarn in which the more slowly fed yarn serves as a core and the more rapidly fed yarn serves as a cover or "effect" yarn with its filaments providing rebound texturized loops protruding laterally from the core. The crimped filaments are entangled with one another and the effect yarn is entangled with the core to give the yarn product stability and integrity, permitting it to be processed into fabrics and the like on conventional equipment. An additional slub yarn effect may be achieved by slowing the core yarn feed, thus periodically forming overfed yarn slubs or nodules on the effect yarn product.

    Abstract translation: 热塑性纱线回弹增强方法的改进是通过将多条连续长丝纱线以不同的速度推进到沿着纱线纵向延伸的加热流体流中，通过流体流将纱线朝着多孔表面滚动，同时通过至少 通过表面的流体流的一部分，以足够的力将进入的纱线冲击在多孔表面上，以引起至少较短的进给纱线的细丝中的压缩卷曲，从多孔表面瞬时反弹纱线，并连续控制实际 当纱线离开卷曲区域时，纱线的压实。 相应于流体流的纱线的推进速率使得至少一根纱线以至少两倍的速率被引入系统。

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