Method of making spun multi-wire articles
    1.
    发明授权
    Method of making spun multi-wire articles 失效
    制作SPUN多线文章的方法

    公开(公告)号:US3823543A

    公开(公告)日:1974-07-16

    申请号:US23032172

    申请日:1972-02-29

    CPC classification number: D07B7/027 D07B2201/2019

    Abstract: The method includes the steps of twisting at least some of the wires making up the article, so as to reduce these wires to the plastic-flow state; spinning all said wires of the article together and subsequently subjecting these wires to plastic-flow compression in the spun condition of the wires, by drawing them through a compressing device.

    Abstract translation: 该方法包括扭曲构成制品的至少一些线的步骤,以便将这些线材减少到塑性流动状态; 将制品的所有所述电线一起旋转,然后通过将它们拉伸通过压缩装置,在电线的纺丝状态下将这些线材进行塑性流动压缩。

    Method of manufacturing twisted wire products
    2.
    发明授权
    Method of manufacturing twisted wire products 失效
    制造电线产品的方法

    公开(公告)号:US3778993A

    公开(公告)日:1973-12-18

    申请号:US3778993D

    申请日:1971-12-07

    Abstract: A method of manufacturing twisted wire products having a core and at least one outer layer of wires laid about the core consists in arranging the outer layer of wires in two groups during manufacture; one group, which is a substantial fraction of the number of wires in the outer layer is twisted and disposed in contact with the core so as to form as many peripheral gaps as there are remaining wires other than those in the fraction; the second group of wires which are the remaining wires are disposed in periphearl gaps so formed, and laid radially away from the core and in contact with adjacent wires of the first group; the outer layer so arranged in two groups is subjected to radially compressive deforming forces so as to wedge the conductors of the second group into the peripheral gaps so as to produce a tight and improved twisted wire product. Circular wires of the same diameter may be used for the core and the outer layer. Twisted wire products having a plurality of outer layers may be produced by forming single outer layers as said and building them in succession; alternatively, the product may be formed in a single stage of plastic deformation and subsequent thermal treatment as required. The core may be of circular, oval, oblong or triangular shape.

    Abstract translation: 一种制造具有芯和至少一个绕芯的外层的外层的捻线产品的方法是在制造过程中将两层电线布置成两组; 其中外层电线数量的很大一部分被扭转并设置成与芯部接触,从而形成尽可能多的外围间隙,因为除了部件之外的剩余电线; 作为剩余电线的第二组电线设置在如此形成的周边间隙中,并且径向地远离芯并且与第一组的相邻导线接触; 以两组布置的外层经受径向压缩变形力,以将第二组的导体楔入周边间隙中,以产生紧密且改进的扭绞线产品。 相同直径的圆形线可用于芯和外层。 可以通过如上所述形成单个外层并连续地构建具有多个外层的双绞线产品; 或者,产品可以在塑性变形的单一阶段中形成,并且随后根据需要进行热处理。 芯可以是圆形,椭圆形,长方形或三角形。

    Luffing crane
    3.
    发明授权
    Luffing crane 失效
    起重起重机

    公开(公告)号:US3828938A

    公开(公告)日:1974-08-13

    申请号:US31670872

    申请日:1972-12-20

    CPC classification number: B66C23/10 B66C23/72 B66C2700/0307 B66C2700/0392

    Abstract: The crane boom is hinged to a frame on which is mounted a winch operating the boom through a pulley tackle. The fixed pulleys of the boom tackle are mounted on the crane frame and the movable pulleys thereof are linked to the boom head. The boom tackle has auxiliary pulleys mounted on symmetrically positioned brackets pivoted to the crane frame parallel to the boom luffing plane. The rope is reeved so that its parts connecting the movable and fixed pulleys run parallel to the boom luffing plane and the auxiliary pulleys are each connected to the movable pulleys by the same number of rope parts. Another winch mounted on the frame raises and lowers the load. The drums of both winches are kinematically interconnected so that they simultaneously rotate in opposite directions, whereby the boom is elevated while the load is lowered. Thus, the load is moved in a true horizontal path while the reach of the crane boom is varied.

    Abstract translation: 起重机吊臂铰接到一个框架上,在该框架上安装了一个绞车,通过滑轮滑车操纵吊臂。 悬臂滑车的固定滑轮安装在起重机框架上,其可动滑轮连接到起重臂头部。 吊臂滑车具有安装在对称定位的支架上的辅助滑轮,其枢转于平行于起重臂变幅平面的起重机框架。 绳索被固定,使得其连接可移动和固定滑轮的部件平行于起重臂变幅平面延伸,并且辅助滑轮各自通过相同数量的绳索部件连接到可移动滑轮。 安装在框架上的另一个绞车提高了负载。 两个绞车的滚筒在运动学上互连,使得它们同时沿相反的方向旋转,由此当载荷降低时,起重臂升高。 因此,当起重机吊臂的到达变化时,负载在真正的水平路径中移动。

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