. American engineer and railroad journal . «, i,,,,,,,,, , ■ ly=. o V. agxaaz- i oa D a c->o « z o <►4 a x 138 AMERICAN ENGINEER AND RAILROAD JOURNAL. and are protected by the floor of the box. After dumping, thecylinders restore the box to its normal position and the doorlocks return automatically into position to close the doorstightly and the car is again ready for loading. To accomplishthis, a surprisingly small number of parts are required. Infact, it appears to be the simplest mechanism possible to usefor such work. The under frame has a back bone of box girder constructionwhich is
. American engineer and railroad journal . «, i,,,,,,,,, , ■ ly=. o V. agxaaz- i oa D a c->o « z o <►4 a x 138 AMERICAN ENGINEER AND RAILROAD JOURNAL. and are protected by the floor of the box. After dumping, thecylinders restore the box to its normal position and the doorlocks return automatically into position to close the doorstightly and the car is again ready for loading. To accomplishthis, a surprisingly small number of parts are required. Infact, it appears to be the simplest mechanism possible to usefor such work. The under frame has a back bone of box girder constructionwhich is 30 ins. deep at the center of the car and tapers to-ward the body bolsters. The side sills are 10-in. channels andthe center and side sills are strongly connected and braced byangles and large gusset plates, as indicated in the plan body and also the truck bolsters are of cast steel, theirform being clearly shown in the engravings. In the sectional
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectrailroadengineering
