| 摘要 |
In accordance with the present invention, a lifting pocket is provided in a tank car bolster bottom cover plate or other tank car support plate. The support plate includes an opening for receiving a U-shaped lifting hook having a first leg having an eye for attachment to a chain or cable and an outer leg having a tapered end portion. The opening is in communication with a pocket formed above the opening for receiving the lifting hook. The pocket includes walls extending upwardly from the plate and a cover plate closing the top of the pocket. The pocket is spaced from the outer end of the support plate sufficient for the outer leg of the hook to extend into the pocket transversely of the car and the inner leg to a vertical surface at the side of the car. The support or bolster is sufficiently wide that the hook cannot be inserted into the pocket other than transversely of the car with the first leg engaging the side of the car and the outer leg extending into the pocket. The side walls and cover plate prevent insertion of the hook into the pocket except with the hook extending transversely of the car with the inner leg engaging the side of the car and the outer leg extending straight upward into the pocket.
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