| 摘要 |
<p>A railroad car (1) with adjustable floor (11, 13, 17, or 19) and roof (27) sections, an adjusting mechanism (21, 23) connected to each, allowing a user to independently or in unison adjust the relative heights of each and/or convert the car from a bi-level to a tri-level car. The overall height of the car can be reduced, which results in reduced costs because the need to stockpile bi-level and tri-level cars for use on routes with different height restrictions is eliminated.</p> |
