Centre beam railroad car

Details Centre beam railroad car Centre beam railroad car

1987-07-21

1989-02-07

Smith, Leonard E.

Railway rolling stock

Special car bodies

Freight

105404, 105407, 105416, 105419, B61D 1700

Patent

active

048024201

ABSTRACT:
This invention relates to centre beam freight cars. The purpose of these freight cars is to carry large, bulky freight which does not require much protection from the elements. Thus, any freight car must have wide utility and sufficient rigidity but a tare mass which does not constitute a high proportion of the fully laden mass of the freight car. The prior art freight cars suffer from a high tare mass proportion in order to provide sufficient rigidity. In this invention, a freight car is provided with a centre beam structure in the form of a vertical truss having a horizontal truss mounted on the top of it. Either of the trusses, or both, are in the form of an open truss. This centre beam structure provides a freight car which has adequate resistance to normal lateral and compressive stresses but has a relatively low tare mass in relation to its fully laden mass.

REFERENCES:
patent: 3244120 (1966-04-01), Taylor
patent: 3675592 (1972-07-01), Bateson et al.
patent: 3734031 (1973-05-01), Wagner
patent: 3820476 (1974-06-01), Harter et al.
patent: 4543887 (1985-10-01), Baker
patent: 4681041 (1987-07-01), Harris et al.

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