|4393786||Track crossing for a two track suspension railroad|
A track crossing for a carriage of a two track suspension railroad arranged in a box girder has, on both sides of a slot provided in the lower flange of the box girder, running surfaces for support wheels, and at the sidewalls of the box girder, current r...
|4041876||Vehicle guiding system|
In a vehicle guidance system, a circular-section guidance rail is embraced y a detector on a vehicle. At a fork, where the rail progressively broadens prior to dividing, the rail height is reduced so that a detector, when tilted to select one branch of the...