Frictional snubbing arrangement for railroad car truck

B - Operations – Transporting – 61 – F

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105/67

B61F 5/06 (2006.01) B61F 5/12 (2006.01)

Patent

CA 1148030

JLS:pm 10/2/ Case 5751 FRICTIONAL SNUBBING ARRANGEMENT FOR RAILROAD CAR TRUCK ABSTRACT OF THE DISCLOSURE 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. -i-

360800

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