This may have been discussed before on the forum but I can't find a reference to it. If so, my apologies.
If you enjoy designing mechanisms, you should be aware of a book entitled 507 Mechanical Movements. Written in 1868 by Henry T. Brown, it's a compendium of all sorts of mechanisms, both common and ingenious. The book is available in pdf form on the web but this...
507 Mechanical Movements
website includes animations of some of the entries.
Next time you have to design something, pack a lunch and browse for a while.
Bookmarks