Railroad brake shoe-brake beam assembly

Details Railroad brake shoe-brake beam assembly Railroad brake shoe-brake beam assembly

1981-12-09

1984-08-21

Bernstein, Hiram H.

Brakes

Elements

Shoe fasteners

F16D 6504

Patent

active

044665130

ABSTRACT:
A railroad brake shoe comprising a composition friction element prepared for engagement with a wheel of a railroad car includes an arcuate-shaped metal backing plate to which the friction element is supportively joined. The backing plate includes a semicircular-shaped attaching bracket which has a pair of brake shoe key windows formed in an upper and a lower member of the bracket. Each window has an angularly offset outer sidewall which forms part of a gripping edge. The attaching bracket of the brake shoe is fitted between spaced carrier lugs formed in a brake shoe head located at each end of a brake beam associated with the railroad car. To secure the brake shoe to the brake head a brake shoe key is inserted in a vertical recess formed in the brake head so as to pass through the key windows in the brake shoe. The key engages the gripping edges in the brake shoe attaching bracket to form a wedging action which inhibits movement of the key during use.

REFERENCES:
patent: 1117366 (1914-11-01), Gallagher
patent: 1328594 (1920-01-01), Sargent
patent: 2107521 (1938-02-01), Busch
patent: 2885037 (1959-05-01), Wilson
patent: 3077957 (1963-02-01), Arrosmith
patent: 3237733 (1966-03-01), Kettering et al.

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