Railway rolling stock – Safety bridges
Reexamination Certificate
2005-02-22
2005-02-22
Olson, Lars A. (Department: 3617)
Railway rolling stock
Safety bridges
Reexamination Certificate
active
06857376
ABSTRACT:
A rail road car has a deck for carrying wheeled vehicles. The rail road car can be coupled to other rail road cars of the same type. Bridge plates are provide that permit wheeled vehicles to be conducted between adjacent rail road cars. The bridge plates have one end mounted to the rail road car at a pivot fitting. The pivot fitting allows the bridge plate to be moved from a length-wise position spanning the gap between cars, to a cross-wise stowed position. The bridge plates have fittings which permit three degrees of freedom relative to the adjacent rail road cars, namely a first degree of freedom to tolerate yawing motion of the first rail road car, a second degree of freedom to accommodate yawing motion of the second rail road car, and a third degree of freedom to accommodate variation in distance between the respective portions of the rail road cars to which the bridge plate is mounted while the rail road cars are moving.
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Anonymous, “Photos of experimental multi-use articulated rail road flat car with short travel draft gear and reduced slack couplers,”.
Coslovi Ilario A.
Forbes James W.
Hahn Loeser & Parks LLP
Minns Michael H.
National Steel Car Limited
Olson Lars A.
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