Railway rolling stock – Trucks – Bogie
Reexamination Certificate
2007-08-14
2007-08-14
Le, Mark T. (Department: 3617)
Railway rolling stock
Trucks
Bogie
C105S182100, C105S185000, C105S190200, C105S193000, C105S198200
Reexamination Certificate
active
10210853
ABSTRACT:
A swing motion rail road freight car truck is provided that does not have lateral underslung cross bracing in the nature of a transom, a frame brace, or lateral rods. The truck has a truck bolster and a pair of side frames, the truck bolster being mounted transversely relative to the side frames. The side frames have spring seats for the groups of springs. The springs seats may be on rockers, or may be rigidly mounted in the side frames. Friction dampers are provided in inboard and outboard pairs. The biasing force on the dampers urges then to that act between the bolster ands and sideframes to resist parallelogram deflection of the truck.
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