I'm looking at designing something using the same mechanism used in this pepper grinder. As far as my knowledge goes, it is converting vertical Linear motion (the push button) into horizontal rotary motion (the ceramic grinder). I would like to understand how this is achieved, especially in such a small vessel. I'm an amateur when it comes to this stuff, and was hoping someone here could explain it to me. I appreciate all answers. Thanks, Beau
And here is Wikipedia link, click.