Railway rolling stock – Trucks – Bogie
Patent
1979-07-16
1981-03-17
Beltran, Howard
Railway rolling stock
Trucks
Bogie
267 9A, B61F 506, B61F 512, B61F 524
Patent
active
042560411
ABSTRACT:
An improved railway truck friction shoe is provided. The contact point of the shoe slope face with the bolster and the spring center line of the shoe are substantially coincident; the contact point is substantially equidistant from the top and bottom edges of the shoe column face. The convex sloped surface of the shoe has a reduced crown radius, and the vertical face of the shoe has an increased length. The shoe is designed to provide a more even distribution of contact pressures across its column face. This results in a longer wear life for the shoe by providing for more uniform wear.
REFERENCES:
patent: 2953995 (1960-09-01), Baker
patent: 4084514 (1978-08-01), Bullock
patent: 4103623 (1978-08-01), Radwill
patent: 4109585 (1978-08-01), Brose
Kemper James M.
Tilly Lynn K.
Amsted Industries Incorporated
Beltran Howard
Brosius Edward J.
Kostka Fred P.
Schmitt John L.
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