发明名称 Railway car superstructure frame
摘要 A welded structural frame for a railway car wall is disclosed as including a pair of aligned U-section vertical members welded to opposite sides of a U-section longitudinal member and a reinforcing insert welded between the sides of the longitudinal member in alignment with the vertical members to provide a frame substantially free of welding distortion. A method of making such a frame is also disclosed as including securing longitudinal and vertical members in a fixture, welding the vertical members to opposite sides of the longitudinal member and then welding a reinforcing insert between the sides of the longitudinal member in alignment with the vertical members.
申请公布号 US4337708(A) 申请公布日期 1982.07.06
申请号 US19800139514 申请日期 1980.04.11
申请人 PULLMAN INCORPORATED 发明人 PETERSON, WILLIAM H.
分类号 B23K9/025;B61D1/06;B61D17/04;B61D17/08;(IPC1-7):B23K31/00;B23P15/00 主分类号 B23K9/025
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