It’s called a Barn Door tracker and was built by [DCH972 ... hinged at one side and opened on the other by a ball screw. This linear actuation needs to be meshed with the change in angle ...

Storing facility. Thin line customizable illustration. Contour symbol. Vector isolated outline drawing. Editable stroke barn door logo stock illustrations Self storage unit pixel perfect linear icon ...

Sliding barn doors operate on a pretty simple mechanism ... which supports the door's weight and guides its linear motion while rollers attached to the top of the door slide along this track ...