Railway rolling stock – Trucks – Bolster
Patent
1990-12-21
1992-05-12
Oberleitner, Robert J.
Railway rolling stock
Trucks
Bolster
B61F 504
Patent
active
051117533
ABSTRACT:
A light weight fatigue resistant cast steel bolster for a freight railcar truck without any opening in the bolster bottom wall having internal risers connected to the bottom wall at bend points and with a ratio of metal in the top and bottom walls that lessens the distance of the neutral axis above the bolster bottom wall as compared to comparable prior art bolsters.
REFERENCES:
patent: 2552019 (1951-05-01), Stertzbach
patent: 4114540 (1978-09-01), Strugielski et al.
patent: 4196672 (1980-04-01), Bullock
patent: 4322981 (1982-04-01), Radwill
patent: 4342266 (1982-08-01), Cooley
patent: 4370933 (1983-02-01), Mulcahy
patent: 4753174 (1988-06-01), Berg et al.
patent: 4838174 (1989-06-01), Moehling
Car and Locomotive Cyclopedia, Simmons-Boardman Publishing Corp., 1974, pp. S13-54 and S13-55.
ASF User's Guide-Freight Car Truck Design, American Steel Foundries sales publication (at p. 3).
McKeown, Jr. Franklin
Wachter William A.
Wronkiewicz Robert D.
Zigler Herbert L.
Amsted Industries Incorporated
Brosius Edward J.
Gregorczyk F. S.
Le Mark T.
Oberleitner Robert J.
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