Window friction hinge 1

The sash is attached to blue conrod of a slider crank mechanism. Push/pull the sash to open/close the window.
Red slider has friction shoes (not shown) that are pressed towards violet runway thus holds the sash at a desired position against undesired movement by wind or the like.
An advantage of this hinge: the outside of the sash is accessible from the inside for purposes of cleaning.
Inventor files of this video:
http://www.mediafire.com/file/bsrziz1xsdz8i48/WindowFrictionHinge1Inv.zip

Видео Window friction hinge 1 канала thang010146