| 摘要 |
A roof assembly for a railroad boxcar having centrally located side door openings. The roof assembly is formed of a number of roof panels each of generally rectangular shape and having longitudinally and laterally located edges. The roof panels are positioned on the boxcar with the longitudinal edges of the panels supported on top side plates of the boxcar. The roof panels include end panels, intermediate panels and door overlying panels. Each of the end panels is located at one of the longitudinal ends of the boxcar and has a laterally located edge. The door overlying panels are positioned over the centrally located side doors of the boxcar. The intermediate panels are positioned between the end panels and the door overlying panels. Each of the intermediate panels is wider than each of the door overlying panels and wider than the end panels. Each intermediate panel is formed with four corrugations while each end panel and door overlying panel is formed with two corrugations. The intermediate panels and the door overlying panels are each formed of 14 gauge galvanized iron while the end panels are formed of 12 gauge galvanized iron.
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