Snail Mechanism

[John T]

I am in insatiabl e clock builder and that's all the apology I'll make.
I have successfu lly built a number of clocks with everythin g from folliot and verge to single pin escapemen ts and even some that chime once on the hour.  I have built a wheel with notches in it to chime the hour and it works as well, however I really would like to try my hand at a snail mechanism .

Does this hold any interest as a programme r?

John

[ArtF]

John:

   We're all insatiabl e at something . lol

 Describe a snail mechanism ...

Art

[Bloy]

Is this it?
 
http://www.youtube.com/watch?v=2KZVbsfQJQg

seriously, here's an e-book preview that you can scroll through for various types of rack and snail mechanism:

http://books.google.com/books?id=iVkFJs5XkjQC&pg=PA52&lpg=PA52&dq=rack+and+snail+mechanism&source=bl&ots=Vy4KnC27jQ&sig=bosmXyeLqw27w6bBleAKs-CnHJo&hl=en&sa=X&ei=IZHzTpLcHNPuggehlrytAg&ved=0CD8Q6AEwAg#v=onepage&q=rack%20and%20snail%20mechanism&f=false