Mike- Yes, I was wrong. The idea of constant driving power was around. Sadly most of these early American tall clocks with often sand filled weights used a simple design since as you noted cost was important and raw metals such as brass was hard to produce locally and often imported from Europe.
I think the best I can do is to use the basic design from the article that David noted and will have to adjust the clock once a week after winding. -Brian, WA1ZMS/4 iPhone On Jan 31, 2014, at 4:33 AM, mike cook <michael.c...@sfr.fr> wrote: > > Le 31 janv. 2014 à 06:06, Brian, WA1ZMS a écrit : > < snip> >> >> "Modern" pendulum clocks have a modified gear drive where the >> >> escapement is still being driven while the main wheel is being advanced >> >> to wind the weight cable. Not the case for 200+ year old clocks. >> >> > > It is not so much the case that it wasn't available as not always implemented > . The problem, and its solution "maintaining power" had been addressed by > many since Christian Huygens in the 17th C. and also John Harrison , the > inventor if the marine chronometer in the mid 18th C. Similarly the > principle exists for spring wound clocks, but is often omitted to keep the > price down. > >> >> Regards, >> >> -Brian, WA1ZMS/4 >> >> >> >> >> >> _______________________________________________ >> time-nuts mailing list -- time-nuts@febo.com >> To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts >> and follow the instructions there. _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
