thang010146 | Box window 1 @thang010146 | Uploaded 10 months ago | Updated 2 days ago
The small white box and the blue sash are connected by a concealed hinge.
The brown mini linear actuator is used to remotely control the opening and closing of the window.
For more about the concealed hinge see
youtu.be/kawlO_uv0-0
This can be used for a hidden gas cap.

Inventor files of this video:
mediafire.com/file/jloh3it8w3v8dsb/BoxWindow1Inv.zip/file