Railway car truck frictional snubbing arrangement

Railway rolling stock – Trucks – Bogie

Patent

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Details

267 9A, B61F 506, B61F 512, B61F 524, B61F 550

Patent

active

042743400

ABSTRACT:
A friction shoe particularly adapted for providing improved regulation of movement between a bolster and a side frame of a railroad car truck includes a central body portion and triangular-shaped wings formed on each side thereof. Pairs of these friction shoes are disposed in pockets formed at the ends of the bolster which in turn are resiliently carried in a window formed in each side frame. Each friction shoe wing has a downwardly and outwardly sloped wear surface to form a convex-like seating area. In turn, each bolster pocket has complementarily formed friction surfaces providing a concave-like receiving area. During operation of the truck, the shoe seating area interacts with the bolster pocket receiving area to produce a wedging action. This wedging action in turn insures improved frictional regulation of side frame-bolster movements and maintains such in an aligned relationship.

REFERENCES:
patent: 2375306 (1945-05-01), Baselt et al.
patent: 2378414 (1945-06-01), Light
patent: 2378415 (1945-06-01), Light
patent: 2720172 (1955-10-01), Baselt
patent: 2953995 (1960-09-01), Baker
patent: 3805707 (1974-04-01), Neumann et al.
patent: 4103623 (1978-08-01), Radwill
patent: 4109585 (1978-08-01), Brose

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