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    Method for supervising spot welding
    1.
    发明授权
    Method for supervising spot welding 失效
    用于监控点焊的方法

    公开(公告)号：US3632956A

    公开(公告)日：1972-01-04

    申请号：US3632956D

    申请日：1970-04-10

    Applicant: KRONPRINZ AG

    Inventor： HERBST KLAUS

    IPC: B23K11/11 ,  B23K11/25 ,  B23K11/24

    CPC classification number: B23K11/115 ,  B23K11/251

    Abstract: Spot welds are monitored for determining the quality of the weld by measuring the amount of shrinkage that occurs at the weld, beginning subsequently to the termination of the welding current. The amount of shrinkage is compared to the shrinkage of reference welds which are known to be satisfactory.

    Abstract translation: 监测点焊，以通过测量焊接后发生的收缩量，随后到焊接电流的终止来确定焊缝的质量。 将收缩量与已知令人满意的参考焊缝的收缩率进行比较。

    Threadless tube connection
    4.
    发明授权
    Threadless tube connection 失效
    无螺纹管连接

    公开(公告)号：US2125552A

    公开(公告)日：1938-08-02

    申请号：US8935336

    申请日：1936-07-07

    Applicant: KRONPRINZ AG

    Inventor： FELDHOFF PAUL

    IPC: F16B7/02

    CPC classification number: F16B7/025 ,  Y10T29/49945 ,  Y10T403/4916 ,  Y10T403/4924 ,  Y10T403/4958 ,  Y10T403/4966 ,  Y10T403/7039

    Abstract: 458,067. Tube joints. FAHRZEUGWERK P. FELDHOFF GES., Radevormwald, Rhineland, Germany. June 26, 1936, No. 17795. Convention date, Dec. 12, 1935. [Class 99 (i)] A joint for long, thin tubes, particularly in bicycle frames comprises a sleeve c the bore of which widens from the ends inwards and having a central partition c . A cylindrical member d fitting each tube, and having a conical bore, is forced down over a loose cone e expanding the tube into close contact with the sleeve. The cones may be integral with the partition c and the contacting surfaces of the tubes and sleeve may be roughened or grooved.

    Wheel with drop-base rim
    5.
    发明授权
    Wheel with drop-base rim 失效
    车轮与底盘RIM

    公开(公告)号：US3787092A

    公开(公告)日：1974-01-22

    申请号：US3787092D

    申请日：1972-01-26

    Applicant: KRONPRINZ AG

    Inventor： ERNST G ,  BRINKMANN H ,  HERBST K ,  WEEGEN L ,  LUDERS A

    IPC: B60B3/04

    CPC classification number: B23K9/0282 ,  B23K9/23 ,  B23K2201/006 ,  B23K2203/04 ,  B60B3/005 ,  B60B3/007 ,  B60B3/044 ,  B60B21/106 ,  B60B2310/302 ,  B60B2900/311 ,  B60B2900/513 ,  Y10T29/49499

    Abstract: Wheel for vehicles having a rim element and a wheel disk, the rim being of asymmetrical construction with one narrower and one broader side relative to a dropped base, the broader side having a substantially cylindrical portion, the rim element having flanges bent toward the axis of the wheel; the wheel disk having a peripheral portion of cylindrical configuration that extends axially and matches said cylindrical portion in fitting configuration and being welded thereto.

    Abstract translation: 具有轮辋元件和轮盘的车辆车轮，所述轮辋具有不对称结构，相对于下落的基座具有一个较窄和一个较宽的一侧，所述宽侧具有基本上圆柱形的部分，所述轮辋元件具有朝向 车轮; 轮盘具有圆柱形构造的周边部分，其轴向延伸并且匹配所述圆柱形部分的嵌合构造并且被焊接到其上。

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