| 摘要 |
A tank bolster construction including an outer body bolster structure underlying the tank at each truck centerline. This outer body bolster structure is shallow in configuration so as to accommodate wheel trucks which might normally be expected to interfere. The outer bolster cooperates with a ring bolster extending around the tank at the truck centerline to dissipate stress at this point. At opposite ends of a stub sill, bolster partial ring structures effectively dissipate stress induced by eccentric loads acting on the stub sill, particularly in the instance where the tank car employs span bolster truck assemblies.
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