This conveyor system propels products of various sizes, shapes, and dimensions through the factory over the course of their assembly.
[1] Accessory to a power tool, such as a straight, swivel or angle jig for a circular saw, and can also be referred to as a fence.
[2] Guide rails are part of the inner workings of most elevator and lift shafts, functioning as the vertical, internal track.
In tandem, these rails operate both as stabilization within the shaft during routine use and as a safety system in case of emergency stops.
[citation needed] On the Sapporo Municipal Subway a central rail guides the train.