Braking and steering radial truck

Details Braking and steering radial truck Braking and steering radial truck

1979-09-04

1981-03-31

Beltran, Howard

Railway rolling stock

Trucks

Radial

105182R, 105199R, 1052241, 188 58, B61F 510, B61F 516, B61F 538, B61H 1324

Patent

active

042586291

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.

REFERENCES:
patent: 2284484 (1942-05-01), Eksergian
patent: 2286563 (1942-06-01), Mussey
patent: 2352222 (1944-06-01), Pogue et al.
patent: 3314505 (1967-04-01), Pelikan
patent: 3315555 (1967-04-01), Travilla
patent: 3344893 (1967-10-01), Pelikan
patent: 3913495 (1975-10-01), Pelabon
patent: 4067261 (1978-01-01), Scheffel
patent: 4067262 (1978-01-01), Scheffel
patent: 4111131 (1978-09-01), Bullock
patent: 4131069 (1978-12-01), List
patent: 4134343 (1979-01-01), Jackson
patent: 4136620 (1979-01-01), Scheffel et al.
patent: 4151801 (1979-05-01), Scheffel et al.

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