Abstract: A new and novel self-locating railcar rerailing device of one-piece construction is provided. A track insert is configured to be installed within a track gauge of either straight or curved sections of an existing model railroad track layout. The sloped and shaped ends of the preferred embodiment and up-ramps of an alternative embodiment each engage the derailed wheels of a moving railcar in such a manner that, with either forward or backward motion, the railcar wheels are guided back into both vertical and horizontal alignment with the tracks.

Abstract: A bi-directional derail is provided with an improved construction which reduces the thrust load imparted by a rail vehicle wheel against the derail, while maintaining the weight and material cost of the derail within practical limits. In a preferred embodiment, the derail is provided with a derail shoe having deflector bars which are reinforced with deflector rail support flanges for increased strength and which have an extended length and gradual deflection angle, preferably no more than 15 degrees from the longitudinal axis of the rail.

Abstract: An electric rerailer provided with guide ways for guiding a motor-driven vehicle of a model railway onto a pair of rails, in which the surfaces of the guide ways are formed by electric conductors electrically isolated from each other and used respectively for the left and right wheels of the vehicle, and the conductors are capable of being electrically contacted with the rails for the left and right wheels respectively. The guide ways are formed on inclined or horizontal surfaces of the rerailer base, and the rerailer base is capable of being releasably mounted on the rails or being connected between ends of the rails.