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    Strand-handling equipment
    11.
    发明授权
    Strand-handling equipment 失效
    STRAND-HANDLING EQUIPMENT

    公开(公告)号：US3627215A

    公开(公告)日：1971-12-14

    申请号：US3627215D

    申请日：1969-02-03

    Applicant: LEESONA CORP

    Inventor： RICHTER HANS H

    IPC: B65H54/28

    CPC classification number: B65H54/2824 ,  B65H2701/31

    Abstract: Strand-traversing mechanism having a pair of oppositely traveling belts each with yarn-engaging guides for moving the yarn along a traversal path with effectively uniform controlled movement and transferring the yarn to an oppositely moving guide at reversal ends of the path. During transfer of the yarn from one guide to another, the portions of the belts on which the guides are mounted are directly supported on pulleys which steady the guides. Pulleys intermediate the traversal path further steady the guides and cause the guides to move to and fro across the strand of yarn for effectively preventing grooving of the guides. The traverse belts are preferably formed from timing belts having on one belt face teeth for direct positive drive by correspondingly notched pulleys and each yarn engaging guide is preferably connected to its belt by a clamp passing at least substantially entirely around the belt and replacing one of the teeth on the belt face.

    Friction twister element
    15.
    发明授权
    Friction twister element 失效
    摩擦元件

    公开(公告)号：US3668856A

    公开(公告)日：1972-06-13

    申请号：US3668856D

    申请日：1970-11-16

    Applicant: LEESONA CORP

    Inventor： RICHTER HANS H

    IPC: D02G1/08 ,  D02G1/04 ,  D01H7/92

    CPC classification number: D02G1/08

    Abstract: Disclosed is an improved friction twisting element for use in a textile yarn false twist spindle. The disclosed friction twisting element, mounted in a false twist spindle capable of rotation about its longitudinal axis, engages a strand of yarn and imparts a plurality of turns of twist to the yarn for each revolution of the spindle. The size and shape of the friction twist element are such that tension fluctuations in the yarn are minimized during the operation of the device. The size and shape of the friction element will also maximize the frictional engagement between the element and the yarn and will avoid yarn slippage that is characteristic of a friction twisting element that has a large variation between the inside and outside diameter of the yarn engaging surface.

    Abstract translation: 公开了一种用于纺织纱线假捻主轴的改进的摩擦扭转元件。 所公开的摩擦扭转元件安装在能够围绕其纵向轴线旋转的假捻心轴中，与纱线一起接合，并且在心轴每转一圈时向纱线施加多圈扭转。 摩擦扭转元件的尺寸和形状使得在装置的操作期间纱线中的张力波动被最小化。 摩擦元件的尺寸和形状还将使元件和纱线之间的摩擦接合最大化，并且将避免作为纱线接合表面的内外径之间具有大变化的摩擦扭转元件的特征的纱线滑动。

    Twister and method of twisting
    16.
    发明授权
    Twister and method of twisting 失效
    TWISTER AND METHOD OF TWISTING

    公开(公告)号：US3668855A

    公开(公告)日：1972-06-13

    申请号：US3668855D

    申请日：1970-06-22

    Applicant: LEESONA CORP

    Inventor： LEESON RICHMOND T ,  RICHTER HANS H

    IPC: D02G1/08 ,  D02G1/02 ,  D02G1/04

    CPC classification number: D02G1/08

    Abstract: Method and apparatus are disclosed for imparting false twist to textile strand wherein a plurality of turns of twist are imparted to the strand for each revolution of a friction twister. The disclosed friction twister comprises a single hollow spindle having a pair of oppositely positioned frictional engagement means therein. The twister also includes reversing guide means which allow the strand to enter in a substantially rectilinear path through one end of the axial bore of the spindle, come into engagement with a first one of the frictional engagement means to twist the yarn, pass through the reverse guide means, thereafter contact the second of the frictional engagement means, and finally exit in a generally rectilinear path through a second end of the axial bore of said spindle. In practice with the present invention a single strand or a plurality of strands can be twisted by the use of a single friction twister spindle and a plurality of turns of twister are inserted in the strand or strands for each single revolution of the twister spindle.

    Abstract translation: 公开的方法和装置用于对纺织线进行假捻，其中在捻线机的每转一圈处施加多匝扭转。 公开的摩擦扭转器包括单个中空心轴，其中具有一对相对定位的摩擦接合装置。 捻线机还包括反向引导装置，其允许线材进入通过主轴轴向孔的一端的基本上直线的路径，与摩擦接合装置中的第一个接合以扭曲纱线，穿过反向 引导装置，然后接触摩擦接合装置中的第二个，并且最终以大致直线的路径离开穿过所述主轴的轴向孔的第二端。 在本发明的实践中，通过使用单个摩擦扭转主轴可以扭转单股或多股，并且扭转器主轴的每转一圈将多匝扭转器插入到股线或股线中。

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