This is perfect for a rainy afternoon, or inspiration to overcome a mental block.
Along the same lines as my post on different enginees, this is a chuck of mechanical drawings of pretty much every solution to every problem you might come across…
Top right there is a link to an ‘index’, from there you might be able to narrow down your search to your problem at hand.
Enjoy. I know I will. (Plus, I love the style of the drawings!)