Abstract: An improved track assembly for TV, video and motion picture camera dollys. The inventive assembly includes first and second rail sections. The rail sections are connected by first and second spreaders. Each spreader is pivotally connected to the rails at each end of the spreader. The spreaders retain the first and second rails in a parallel offset relation in a first, deployed, position at which the first and second spreaders are disposed at a ninety degree angle relative to the first and second rails. In a particular embodiment, the first spreaders are coupled to one another by a set of fasteners which are connected to one spreader at one end and hooked onto another spreader at the other end. In the illustrative embodiment, the first and second rails include a male connector at a first end and a female connector at a second end, whereby each female connector on each rail is adapted to receive and retain a male connector from an abutting rail. Each of the rails has a uniform circular cross-sectional area.

Abstract: A rail for a track for a wheeled vehicle is generally elongated and has a substantially "I" transverse cross section providing an upper rail head and a lower rail foot joined by a web. The rail head is provided with at least one and preferably two laterally spaced apart longitudinally extending apertures, which are adapted to receive alignment pins so that when the rails are coupled to each other substantially end on end, the pins extend between abutting ends of the rails to maintain the rails in an abutting and substantially aligned relationship. A track is also provided including spaced apart rails with a plurality of spacers extending between the spaced apart rails to maintain the rails in a predetermined spaced apart relationship. The spacers can be pivotally mounted on the rails, so that the rails are able to move and pivot relative to each other such as for the adjustment of gauge, packaging, and transport.