Exactly what it says on the tin, this building technique is a not-so-simple solution to making a hinge joint capable of both being scaled up and bearing weight far beyond that of what the existing 2-component bricks can provide.
Initially implemented on my SSV Normandy SR1 [Digital](2010), this iteration utilizes a pin system to lock it into 'open' and 'closed' positions. This could be replaced by gears and a 'teeth track' offering more flexibility in angle control.
By evolving the design, one will arrive at setup identical to that of a piston, proving that 360 degree rotation is possible, if unoriginal.
Oh yes, I remember these parts from building the SR1 ... Just to add: my experience is that the achilles heels of this construction are the black hinge plates that connect the larger light grey plates. If those hinges aren't the newest ones they often get loose from the grey plates. But I don't remember how I fixed them ...
So just as a reminder for the other guys thinking of using this part.
Besides, this IS really a nice piece of work! Very flexible and indeed a not so simple solution. Congrats!