초록 ▼

A center stub sill railway tank car is disclosed having a generally cylindric, elongate tank. A center stub sill assembly is secured to the lower portion of the tank at each end thereof for transferring longitudinal train and lading loads between the tank and the center stub sill assembly. A bolster

A center stub sill railway tank car is disclosed having a generally cylindric, elongate tank. A center stub sill assembly is secured to the lower portion of the tank at each end thereof for transferring longitudinal train and lading loads between the tank and the center stub sill assembly. A bolster assembly is secured to the center stub sill and extends transversely of the car. An improved cradle assembly is secured to the lower end portion of the tank for reinforcing the tank bottom in the area of the center stub sill, the cradle assembly having an arcuate cradle extending at least in part circumferentially upwardly from the bottom centerline of the tank generally at the longitudinal position of the bolster assembly, and an upwardly facing hat section elongate cradle secured to the bottom end of the tank and extending inboard from the cradle. The center stub sill has vertical flanges extending inwardly from the bolster assembly on the outside of the hat section shaped cradle pad and welded thereto so as to transmit loading between the cradle pad and the center stub sill assembly.

대표청구항 ▼

In a stub sill railway tank car having a generally cylindric, elongate tank with a tank end at each end thereof, a center stub sill assembly secured to the lower portion of the tank at each end thereof for transferring longitudinal train loads and lading loads between the tank and the center stub si

In a stub sill railway tank car having a generally cylindric, elongate tank with a tank end at each end thereof, a center stub sill assembly secured to the lower portion of the tank at each end thereof for transferring longitudinal train loads and lading loads between the tank and the center stub sill assembly, each center stub sill assembly carrying a coupler and a truck assembly which is pivotally connected to the center stub sill assembly for rollingly supporting said railway car on the rails, said center stub sill assembly comprising a center stub sill secured to the bottom portion of said tank and extending inboard of the tank end but terminating short of the center of the tank and extending outboard beyond the end of the tank for carrying its respective said coupler, a bolster assembly secured to said center stub sill and extending transversely thereof proximate the connection of said truck assembly to said center stub sill assembly, and a cradle assembly secured to the lower end portion of said tank for reinforcing said tank bottom end portions and for transferring loads between said tank and said center stub sill assembly and said bolster assembly, wherein the improvement comprises: an improved cradle assembly having an arcuate cradle extending circumferentially upwardly form the bottom centerline of the tank somewhat inboard of the intersection between said tank and said tank end generally at the longitudinal position of said bolster assembly, and an elongate cradle pad secured to the bottom of said tank and extending in inboard direction along the bottom centerline of the tank, said cradle pad having a lower center web spaced below the bottom centerline of the tank, said center web having a thickness, and said cradle pad further having a pair of vertical flanges extending upwardly from said center web and being secured to said tank on opposite sides of the bottom centerline thereof, said center stub sill extending inboard form the coupler and having a pair of vertical sill flanges with said vertical sill flanges being disposed on the outer faces of said cradle pad vertical flanges inboard of said bolster assembly, said vertical sill flanges being in adjustable inside face-to-outside face slip fit engagement with said cradle pad vertical flanges thereby to facilitate adjustment between said center stub sill and said cradle pad through a range of adjustment substantially greater than said thickness of said center web to a desired adjusted position, and weld means for securing said center stub sill to said cradle pad when the latter are in their said adjusted position.