Railway rolling stock – Trucks – Bogie
Patent
1990-12-17
1992-03-17
Focarino, Margaret A.
Railway rolling stock
Trucks
Bogie
1051985, B61F 506
Patent
active
050958232
ABSTRACT:
The present invention provides a friction shoe for use in a railway freight car truck. The friction shoe is disposed to dampen movements between the truck bolster and the side frames, and consists of a unitarily cast metal body having a generally planar vertical wear plate adapted to frictionally engage a column on the truck side frame. The back surface of the vertical wear plate is augmented to create a thicker cross sectional area at either the upper or lower ends of the plate, depending on the type of shoe being used. The augmented shoe provides a longer wearing friction surface which requires less frequent replacement and lower costs.
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Amsted Industries Incorporated
Brosius Edward J.
Focarino Margaret A.
Gregorczyk F. S.
Pape Joseph D.
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