This clock was built as a kind of challenge, such a one not having been built by me before. I'm not sure that I can suggest you try it - unless you really do like a Meccano challenge! When first built, it fired up right away, and I thought I was home and hosed, but ever since then I've had no end of trouble with it - the precise settings of the pawl WRT the ratchet and the points gap seem to be utterly crucial, and change easily without your noticing.

I've not completed it fully as per Keith's instructions in Newsmag 29, 1982, but just to show that it is a clock, and that the hands do go around. It keeps time reasonably well, but is still running a tad fast, even with the stacks of Wheel Discs now clustered at the bottom of the bob, rather than equi-spaced top and bottom as per Keith's.

There is an additional file detailing a revised, more robust, pendulum. Click on "Girder Frame Bulle Pendulum".

And finally, there is another version of this clock, with a vastly simplified pendulum and significantly smaller overall size. Click on "Simplified Bulle Clock".