Yes, there were a similar product produced for schools and offices that synchronized the clocks to a master kept in the office though it lacked the function for bringing a generator output into line.
For a time, before quartz, the very best observatory clocks were a pendulum variety with a 'master' pendulum in a vacuum case and a 'slave' pendulum in a conventional clock. The slave was set very slightly slower and pulled into line from a periodic pulse from the master (which was kept running with electrical impulses). I would guess that there was a Amateur Scientist article covering something like this, though with the refinement of pendulum longcase (grandfather) clocks by that time in history, I don't know as any amateur modifications would actually improve timekeeping. Hal Murray wrote: >>http://www.telechron.com/ >> >> > >Neat. Thanks. > >I think we had one like that back in grade school. That was a long time ago. > > >There was an article in Scientific American 20 or 30 years ago. The idea was >to make an old grandfather clock keep very good time by adding a magnet to >the pendulum so you could gently push/pull it. > >Anybody remember that one? Anybody build one? > > > > _______________________________________________ time-nuts mailing list time-nuts@febo.com https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts