Patent ID: 6460468
Filing Date: 2002-10-08
Classification: B61D,B61F

Abstract:
A railroad drive system for transporting along a railroad track a vehicle trailer having a front king pin and a rear king pin downwardly projecting from a lower surface thereof in vertically spaced relation above the railroad track, said drive system comprising: a drive assembly having motorized wheels and a pair of differential axles operatively connected with said wheels, said drive assembly carried on a support frame and operatively engaging the railroad track, motor means carried by said support frame for driving said motorized wheels, and a front fifth wheel and a rear fifth wheel carried by said support frame and having a first position vertically below the lower surface of the trailer, and lifting means operatively connected with said support frame for selectively raising said front fifth wheel and said rear fifth wheel from said first position into coupled relationship respectively with said front king pin and said rear king pin; and an operator, control station mounted on and extending laterally outward of said support frame between said axles, said control station including means for operating said motor means and said lifting means.