Braking and steering radial truck
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Mar 31, 1981
Grant Date -
N/A
app pub date -
Sep 4, 1979
filing date -
Sep 4, 1979
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A radial axle railway truck of the rigid frame type has an improved primary suspension for resiliently supporting the truck frame from the axles while permitting arcuate movements of the ends of the axles required to allow the axles to assume radial positions on curved track and an improved disc brake system arranged to minimize interference with wheel-induced steering movements of the axles. The primary suspension comprises journal bearing structures with fore and aft wings, a yoke supported on the wings by flat elastomeric pads yieldable horizontally to accommodate steering movements of the axles and chevron-shaped elastomeric springs carried on the yokes fore and aft of the respective journal boxes and acting in parallel with metal coil springs carried by the yokes. A disc brake system has a single disc at the center of each axle, with underslung brake shoes and the reaction connections of the shoes to the truck frame being substantially horizontal to counter the effect of retardation forces between the respective axle and the truck frame.
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