Two-axle truck for a railway car and a railway car

Details Two-axle truck for a railway car and a railway car Two-axle truck for a railway car and a railway car

2011-07-12

2011-07-12

Le, Mark T (Department: 3617)

Railway rolling stock

Trucks

Radial

C105S167000

Reexamination Certificate

active

07975619

ABSTRACT:
Lateral pressure which develops in the front wheelset when traveling along a curved track is decreased while suppressing an increase in costs as much as possible. A two-axle truck for a railway car has a front wheelset having wheels with a first tread gradient and a rear wheelset having wheels with a second tread gradient which is different from the first tread gradient. The tread gradient of the wheels of the rear wheelset is larger than the tread gradient of the wheels of the front wheelset.

REFERENCES:
patent: 1858929 (1932-05-01), Harry
patent: 62-163175 (1987-10-01), None
patent: 2738114 (1998-01-01), None
patent: 10-250574 (1998-09-01), None
“Properties of Trucks and Tracks When Traveling Along a Sharp Curve and Their Effect on Rail Corrugation”, J-Rail 1995 (1995 Railway Technology Joint Symposium in Japan).

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