Railways: surface track – Roadbed
Patent
1996-05-02
1998-07-21
Le, Mark T.
Railways: surface track
Roadbed
E01B 100
Patent
active
057824053
ABSTRACT:
In accordance with illustrative embodiments of the invention, a drain basin system for collecting liquids and light solids that are spilled while loading or unloading a rail tank car includes a system of precast concrete pan members. Center pan members which are positioned between the rails have upwardly inclined flanges on their outer sides which extend partly over the plates of the rails, and outside pan members have identical flanges on their inner sides and upstanding walls on their outer sides. A pair of the system of pan members positioned end-to-end are arranged to have a higher elevation at the joint between them so that liquids run toward opposite ends where they enter trench drains either directly or via sealed tubular drains. Flashing strips cover the abutting joints, and also extend along the inclined flanges on opposite sides of each rail and up underneath the sides of the head thereof. In one embodiment, rigid tubes and flexible elastomer seal sleeves provide drain paths in a non-rigid connection.
REFERENCES:
patent: 841367 (1907-01-01), Zollinger
patent: 1408134 (1922-02-01), O'Donnell
patent: 2492177 (1949-12-01), Olsen
patent: 3773255 (1973-11-01), Schoulties et al.
patent: 4010896 (1977-03-01), Stockton
patent: 4296884 (1981-10-01), Luebke
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