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1. 发明授权

US4922743A Bar for connecting railway track rails and method of making same 失效
标题翻译：连接铁路轨道的栏杆及其制作方法
公开(公告)号：US4922743A
公开(公告)日：1990-05-08
申请号：US349878
申请日：1989-05-09
申请人： Norman W. Hillegass , Walter J. Drone
发明人： Norman W. Hillegass , Walter J. Drone
IPC分类号： E01B11/16 , B21D31/06
CPC分类号： E01B11/16
摘要： The disclosed connection bar is elongated, adatped to overlap respective adjacent ends of two rails, and the top and bottom portions at each end of the bar have elongated contact faces shaped to cooperate flush against respective surfaces on these rails. A pair of holes is provided in a web portion of the bar, and securing devices may be extended through the holes for clamping the bar against the rails. An elongated reinforcing rib may be formed on the web portion, extended across the bar transverse to and between the enlarged top and bottom portions, and located to line up adjacent the ends of the rails when the bar is secured to the rails. Other reinforcing ribs may also be extended across the web portion, transverse to and between the top and bottom portions; and these other ribs are located outwardly beyond the holes. The bar may be formed by forging a hot billet of forgeable material between a set of dies having faces that complement respectively the rail and remote sides of the intended bar, the dies being moved toward one another at a high relative velocity to strike the interposed billet with a high impact, sufficient after repeated strikes to shape the billet to that intended for the bar including having the rail-engaging contact faces.
摘要翻译：所公开的连接杆是细长的，适于与两个轨道的相应的相邻端重叠，并且杆的每个端部处的顶部和底部部分具有成形为与这些轨道上的相应表面齐平配合的细长接触面。一对孔设置在杆的腹板部分中，并且固定装置可以延伸穿过孔，用于将杆夹紧在轨道上。细长的加强肋可以形成在腹板部分上，横向于横向于扩大的顶部和底部之间的杆延伸，并且当杆固定到轨道时被定位成相邻于轨道的端部排列。其他加强肋也可以跨越腹板部分延伸，横向于顶部和底部之间并且在顶部和底部之间延伸; 并且这些其它肋位于孔之外。棒可以通过在具有补充预定棒的轨道和远侧的面的一组模具之间锻造可锻材料的热钢坯而形成，模具以相对高的速度朝向彼此移动以撞击插入的坯料具有高冲击力，在重复冲击之后足以将坯料成形为用于棒材的坯料，包括具有轨道接合接触面。

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