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    Contour underground mine car
    1.
    发明授权
    Contour underground mine car 失效
    CONTOUR地下矿车

    公开(公告)号：US3841236A

    公开(公告)日：1974-10-15

    申请号：US34474773

    申请日：1973-03-26

    Applicant: ACF IND INC

    Inventor： HAMMONDS J ,  O LEARY W

    IPC: B61D11/02

    CPC classification number: B61D11/02

    Abstract: An underground mine car is disclosed in which the sides and bottom members are at least partly curved preferably having a radius of curvature from about 6 to about 60 feet for the sides and 10 to 30 feet for the bottom, enabling these members to resist applied forces primarily in tension rather than in flexure according to prior construction. In addition, the curved sides transmit longitudinal loads, such as impact and squeeze, more effectively than flat plate construction of equal cross-sectional area. This enables thinner sections to be utilized, and a reduction in car weight can be obtained. Since the number and extent of the welds is marketly reduced in the construction of the invention, and since such welds are often points of inception of corrosive attack, the structure is less susceptible to corrosion and hence this reduction in thickness and thus weight is permissible. The sides and bottom can be made of substantially the same thickness and thus can be made of a single member. Therefore only one longitudinal joint along the bottom of the car is required resulting in inexpensive fabrication. Only one top chord is required to reinforce the unsupported edges of the curved side members. One or a limited number of transversely extending reinforcing members may be provided, if desired, particularly on long cars.

    Abstract translation: 公开了一种地下矿车，其中侧部和底部构件至少部分地弯曲，优选地具有用于侧面的约6至约60英尺的曲率半径和用于底部的10至30英尺的曲率半径，使得这些构件能够抵抗施加的力 主要是在紧张而不是按照先前施工的弯曲。 此外，弯曲的侧面比等横截面积的平板结构更有效地传递纵向载荷，例如冲击和挤压。 这样可以利用更薄的部分，并且可以获得轿厢重量的降低。 由于在本发明的构造中焊缝的数量和范围在市场上有所减少，并且由于这种焊接通常是腐蚀性攻击的起点，因此该结构不易受腐蚀，因此厚度的减小以及因此的重量是允许的。 侧面和底部可以由基本上相同的厚度制成，因此可以由单个构件制成。 因此，仅需要沿着底部的一个纵向接头，这导致廉价的制造。 只需要一个顶部的弦来加强弯曲侧面构件的未支撑的边缘。 如果需要，可以提供一个或有限数量的横向延伸的加强构件，特别是在长的车辆上。

    Apparatus for securing lading on railway flat cars
    2.
    发明授权
    Apparatus for securing lading on railway flat cars 失效
    安全提升铁路平板车的装置

    公开(公告)号：US3804028A

    公开(公告)日：1974-04-16

    申请号：US27323172

    申请日：1972-07-19

    Applicant: ACF IND INC

    Inventor： HAMMONDS J ,  DARE R ,  O LEARY W ,  THORNTON D

    IPC: B61D45/00 ,  B60P7/08 ,  B65J1/22

    CPC classification number: B61D45/003

    Abstract: A tie-down system for carrying loads, such as lumber, on the deck of a railroad car is disclosed having resiliently anchored banding providing tie-downs to secure the loads onto the deck so that a minimum travel or shifting of the loads longitudinally along the deck is obtained when the loads settle and impact forces are exerted against the car. The banding is arranged in an endless double loop over the load with the free ends of the bands positioned over the upper surface of the load for tensioning and securement. The double loop permits the banding to slip longitudinally about its anchor points thereby to provide a mechanical advantage and permitting a relatively high initial tensioning to be obtained with conventional tensioning equipment without the use of power tools. Various means are employed to reduce any pretensioning in the banding upon removal of the banding and unloading the flat car. The tie-down assembly is further designed to reduce or substantially eliminate lateral movement of the lading. The tie-down assembly comprises a resilient means for pretensioning the banding, a means for receiving the banding preferably designed to avoid stress concentrations in the banding passing therethrough, and means for providing at least some rotational movement of the tie-down assembly about its own generally vertical axis at least about 20*. Means may be provided on the car for storing the tie-down assembly when not in use. And the tie-down assembly may include means for mounting the same on the car in such a manner that upon removal of the banding therefrom, the assembly automatically assumes a stored position on the car.

    Abstract translation: 公开了一种用于在铁路车辆的甲板上承载诸如木材之类的负载的捆扎系统，其具有弹性锚定带状结构，提供捆绑以将负载固定到甲板上，使得沿着沿着纵向方向的载荷的最小行进或移动 当负载沉降和冲击力施加在汽车上时获得甲板。 带状物被布置在负载上的环形双环中，带的自由端定位在负载的上表面上，用于张紧和固定。 双环允许条带围绕其锚定点纵向滑动，从而提供机械优点，并且允许使用传统的张紧设备获得相对较高的初始张力而不使用电动工具。 采用各种手段，在拆除带状物并卸下平车后，减少条带中的任何预紧力。 进一步设计了系固组件以减少或基本上消除提升机的横向移动。

    RAILWAY CAR TRUCK
    3.
    发明专利
    RAILWAY CAR TRUCK 未知

    公开(公告)号：ZA762483B

    公开(公告)日：1977-04-27

    申请号：ZA762483

    申请日：1976-04-26

    Applicant: ACF IND INC

    Inventor： HAMMONDS J ,  HOLT J ,  GARNER G ,  MELCHER C

    IPC: B61F1/12 ,  B61F3/02 ,  B61F5/04 ,  B61F5/06 ,  B61F5/24 ,  B61F5/30 ,  B61F5/36 ,  B61F5/52 ,  B61C ,  B61D

    Abstract: In accordance with the present invention a railway car truck is provided including a pair of transversely spaced side frames and a transom which is attached solely to the side frames with a rigid connection to define an integral H frame to maintain the side frames parallel and resist truck hunting. The transom has a cross section which provides torsional flexibility which allows the side frames to rock relative to one another. Above the transom a bolster is provided which extends transversely between the side frames and rests upon spring assemblies mounted in openings in the side frames. The weight of the car body is by car body bearing assemblies mounted on the bolster above the spring assemblies. A bolster center bearing is provided which engages the car body and transmits substantially all horizontal loads from the car body through the bolster to the side frames. The spring assemblies may include two components in which one component has a resultant low spring rate which at all times in traversing ordinary track transmits the weight of the car body to the side frames, and another component having a resultant high spring rate which functions when rough track is traversed to transmit the weight of the car body to the side frames from where the weight is transmitted to the wheels to maintain the wheels on the track while the rough track is being traversed.

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