Bolster of a railroad car truck with varying cross-sectional sha

Details Bolster of a railroad car truck with varying cross-sectional sha Bolster of a railroad car truck with varying cross-sectional sha

1992-06-15

1994-07-12

Le, Mark T.

Railway rolling stock

Trucks

Bolster

105200, 105230, B61F 552

Patent

active

053278372

ABSTRACT:
A bolster for a railroad car truck is described as having a generally hollow, box-like construction between its opposing ends which are transformed into I-shaped sections which are rigidly secured to the sideframes. The box-like frame provides the stiffness or rigidity necessary to resist high vertical and longitudinal loads which can cause the bolster to bend during operation of the truck. The I-shaped sections are relatively more flexible than the box-like frame to accommodate or absorb the twist loads that are encountered while being rigid enough to resist the loads that can cause the bolster to bend.

REFERENCES:
patent: 1215766 (1917-02-01), Benner
patent: 1407551 (1922-02-01), Laughlin
patent: 3338183 (1967-08-01), Boissier
patent: 3517620 (1970-06-01), Weber
patent: 3915095 (1975-10-01), Briggs
patent: 4133268 (1979-01-01), Guillaumin

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