Croissant forming machine - GIF

[Frank S]

I wanted to see how they layer up the doe with butter, as that's the trick in making these, this rolling up part being automated, probably has a trick mechanism, that even with patent, is too stupid easy to replicate.

What you are calling a too stupid to replicate mechanism is the moving conveyor belt and the stationary loose plat chain that catches the leading edge of the dough as it is pulled along on the conveyor. Once the lead edge passes under the links in the chain it can't help but roll the dough. And yes, it is a stupidly brilliant idea.