| 摘要 |
A rail road car has a deck for carrying wheeled vehicles. The vehicles are loaded from the ground by use of a movable ramp that is positioned next to a separa te coupler end of the rail road car. The ramp has a locating guide, in the nature of a pair of tapered prongs, that located in mating sockets in the end of the rail road car. The co- operation of the guides and sockets forced the ramp to align with the deck of the rail road car in a predetermined position, namely aligned centrally with the deck. The ramp has a telescoping , pivoting boom. The boom has a hitch that can be engaged by a towing vehicle, permitti ng the ramp to be moved into position as desired. The boom can then be collapsed and lowered out of the way of the path of the wheeled vehicles. The boom is counterweighted to facilitate manual operation.
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