A flickr set of photos showing the workings of 3 clockjacks I have encountered.
Items to elaborate on
- friction wear takeup screws
- conical bushings
- wear takeup plates
- fly wheel
- friction based ratchet
Note: Special thanks to Peter Ross for his kind help.
The opera di Bartolomeo
A 1703 Reference
Mechanick exercises:Joseph Moxon
Start looking at page 39 of the book (page 50 of the google book)