Railway rolling stock – Special car bodies – Freight
Patent
1979-06-15
1981-03-24
Beltran, Howard
Railway rolling stock
Special car bodies
Freight
105226, 105228, B61D 506, B61F 100, B61F 114
Patent
active
042573327
ABSTRACT:
A tank car stub sill underframe is assembled by welding together a pair of angles to opposite edges of a longitudinally extending curved plate to form a generally channel-shaped section. The channel-shaped section includes a concave top plate and a pair of vertically extending legs welded to the concave top plate. Each leg includes an outwardly extending, horizontal flange at the base of each leg. The curved plate includes a first portion extending from the end of the car inboard to a point adjacent, but outboard of, the car body bolster in which the curved plate spans the distance between the vertical legs and each of the plate's transverse outer edges engage the upper end of one of the vertical legs. The curved portion includes a second or intermediate portion extending from the inner end of the first portion through the body bolster area and continuing considerably inboard of the bolster area. In this second, or intermediate, portion the transverse outer edges of the curved plate extend outwardly and above the vertical legs in a concave contour to support the tank. A conventional body bolster extends transversely on either side of the stub sill. The bolster includes a top cover plate which abuts and is welded to the respective outer edges of the curved plate. A third, inner portion of the curved plate extends inboard of the intermediate portion to reinforce the tank. The transverse extent of the curved plate preferably is gradually reduced on each side of the third or inner portion, forming a pair of transversely spaced, horizontal tapers.
REFERENCES:
patent: 3308769 (1967-03-01), Halcomb et al.
patent: 3467027 (1969-09-01), Brown
patent: 3557708 (1971-01-01), Bolte
patent: 3626867 (1971-12-01), Becker
ACF Industries Incorporated
Beltran Howard
Cummings Henry W.
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